Circuit topology
Hello Hugh,
the circuit is VERY similar to the GAS Son of Ampzilla except a few details: like triple Darlington outputs vs normal Darlington for the Ampzilla, the higher supply voltage and bias detail.
http://home.kimo.com.tw/skychutw/ampzilla/index.html
I could even advice destroyerx not to connect the longtailed pair to the opposite rail but to half the supply voltage. And matching all four inputtransistors to 1% on Beta. Omit the bipolar elco made up off two electrolytics and use a polypropylene cap. Also some sort of offset adjustment would be neat.
Cheers,
ELSO
AKSA said:
Hello Hugh,
the circuit is VERY similar to the GAS Son of Ampzilla except a few details: like triple Darlington outputs vs normal Darlington for the Ampzilla, the higher supply voltage and bias detail.
http://home.kimo.com.tw/skychutw/ampzilla/index.html
I could even advice destroyerx not to connect the longtailed pair to the opposite rail but to half the supply voltage. And matching all four inputtransistors to 1% on Beta. Omit the bipolar elco made up off two electrolytics and use a polypropylene cap. Also some sort of offset adjustment would be neat.
Cheers,
ELSO
I receive one letter, one ashamed boy asking very basic electronics
No need to ashamed, i born without walk and talk, and always learning from Pass, from one man from Netherland, John Curl, and a lot of others.
This way, about circuit, it works and of course may be a copy of someone else, why of course guys?, because do not exist one man in earth that never read a book from other people knowledge
written inside, this way, when you learn those thing in University, those informations will be the reference to you, and you will keep things rolling starting using those informations to do your "own circuit"... this kind of "origine" material will be possible if you lock someone in the top of the hill, without communications with the world, this way he will develop a fork, a knife, made with stones.
I perceive some people trying to make bad games, trying to unstabilize others, to make them nervous...bad use, better to be more friendly and not disturb. If you cannot understand, ask the one to explain without this kind of proud that show more weekeness than other thing.
For this one that have no good experience, and send a mail to me, and to the others that always try to reduce others man experience, to diminish their importance... the old rule, if you cannot match them, try to made him not so good!... cannot be taller than him..... climb some stair and talk from that place... or make some dah dah dah! to give us the impression that not minding about nothing.... you, the one, knows that i am directing to you, not all forum, only to you.
About my amplifier, because Sony, Kenwood, and many others making same thing, not clever start with no reference... you will construct some amplifier with a lot of condenser to separate stages... will return to stone age times.
This one is mine, and going to register, also in this forum there are hundreds alike, they all have transistors, this way copy from others because have transistors too?
The amplifier works, and is working now, i am hearing good music with it. now is running cold with only 20 watts peak, not more power is needed if you do not want to disturb neighboors, but some big places need more power, also hard speakers, low efficience ones called, my idea have another name to those damn speaker.
My amplifier first stage, without signal in input, stage voltages.
Diferential transistors - VBE 600 to 610 mV
Second Stage, no more diferential - 620 to 630 mV
Third Stage- 580 to 600 mV
Fourth Stage- 600 to 610 mV
Power output stage- 540 to 550 mV
Idle current to adjust will depend how many output transistor you put.... to be a very safe amplifier, use 12 pairs, and to use only in 4 ohms charge use 4 pairs...your choise.
Thinking it used to 4 ohms, the total current will be 60 mA, rail current.
Before switch on put big resistor, alike 100 ohms, 10 watts in series with plus and minus, this way, measuring the voltage on those resistors you will check:
a) If is same voltage above the positive rail resistor related to the negative rail resistor.... 10 volts on it represents 100mA, 9 volts will be 90mA.... and 1 volt will be 10 mA
b) Current may be the same, with small errors, better if no errors.. same current, but normally you will find some miliamperes diferent in a 5 percent basis.
c) If big voltage on those resistor, the bias is too big, try to reduce... if cannot, check circuit again, something is open circuit, or short circuit somewhere, transistor lead soldered wrong, condenser polarity wrong, some component may be a little hot.
d) Check the output voltage, dc at the amplifier center, the output bar line, i more than some milivolts, error in assembling, check VBE voltages on each transitor.
e)If all is correct, disconnect power and put fuses in the resistor place, and switch on an measure again, the off set voltage (remained small Dc voltage over charge, over the speaker), check the bias using ohms law, measure voltage over the emitter resistor and calculate current, re-adjust current and off set.... voltage and current must be fixed, no variations., no fluctuations. those measurements... all them, must be done with a charge connected in the output.... if all good, put also a fuse in the output line to protect speakers...measure resistance of fuses, sometimes so bad that makes you think amplifier is awfull, and you send to trash a good amp, and a bad fuse.
Use always clean table to assemble and test, remember that under the board (normal boards, mine are different), you can make short circuits because components terminals and solder islands are exposed.
Better to use rubber over the table... not with because your eyes, and not too dark too, the ligth may come from your left side because you use right hand (if you use rigth hand), and cannot put ligth from right side because of shadows.
Isolate all mains wiring, and put transformers and power switch in a safe distance, all expose wire isolated...i use some adhesive made of paper, the white one that is cheap, alike the ones you use to fix absorbers in babies.... put mains and trafo. distant.... more than 50 centimeters, use heavy gauge wires to bring DC to amplifier, avoiding resistance.
Before switch on, check it three times (and some mistake can still there!), take a look in possible shorts with a multimeter and measure resistance from plus to minus, plus to output and negative to output.... hy resistance.... more than 200 K normally... if low.... problems!...or circuit is wrong designed, copied, or assembled...normally bad assembling with mistakes.... one small short can make all voltages crazy, and some component burns without smell or explode... this one, resistance measurements are really first importance before power the unit.
Always, and i made around 4000 thousand, very hard, 10 to 50 in a thousand amplifiers you do not need to balance somewhere... increase or decrease some emitter resistor to change VBE voltage in the next stage.... also some changes in feedback resistor that controls the gain, sometime too much high VBE... do not use more than 650 volts!... because transistor can be near saturation, and will distort..... better VBE's aroud 500 to 580 milivolts DC voltage.
Before assembling, check transistor voltage capacity, related the voltage you gonna use....better this maximum allowable transistor voltage be at least twice voltage it will work... alike voltage from plus to minus (ground out this time)
Transistors not magic or with personallity components, they do not sing good in my comprehension, or sing bad a song, also electrons are all them the same, not big electrons or thin electrons or fat electrons. Have to consider the respectable name of the factorie, the maximum current, maximum voltage, the gain, the maximum frequency and maximum power can transfer to heath sinks... those watts are power dissipation max.... if 100 watts, it means that audio will be around 50 watts and other 50 watts will be heat (sometimes 65 to 35 ratio). If respected will work good
Putt heatsinks on drivers and power units, put bias diodes or transistor working as VBE multiplier, in contact with heat sink.... heat contact, only thermical, not electrical contact.... isolate them if you are a begginer, if not, isolate the heat sinks one related the other with wood, and also all heatsinks from metal chassis with woodem pieces to isolation.
If you amplifier will produce 60 Watts RMS channell, and two channels working, total audio 120 Watts RMS, total consumption are 240 Watts (around), and in 220 volts main, the fuse will be 1 ampere.
Fuses to power, will depends the power the amplifier will hold, made simple calculations only to have an idea.... how many volts it produces over the speaker terminals.... 20 Vots?.... and speaker is 4 ohms?.... put a 5 ampere fuse (not precise, not correct, but works good.
And to protect you speaker.... whats the real power he goes without over drive....put an low frequency audio generator.... 30 hertz or 100 hertz, your choice, i prefer 20 hertz and go increasing amplifier volume till the moment you see speaker movement cannot go further.... this is maximum power... measure with voltimeter....you found 16 volts?..... 8 Ohms the speaker.... can use 2amperes, better 2.5 fuse..... this 16 volts represents 32 watts rms without speaker overdrive and distorts, transforming sinusoidal waves into square waves... forget the manufacturer informs, all them lye too much!
You will see that, hard to find normal speaker, the standard ones, not top high excursion, hy power units, but normal ones normally cannot go to 8 volts (8 to 10 watts maximum).... the good ones goes to end excursion with only 4 volts (2 watts if 8 ohms)
Good luck.... experience is hard to learn... all of you , the young ones, have to burn a lot to learn things, about isolate multimeter tips because you will always send circuits to hell when measuring VBE or VCE voltages on it... do not measure on transistors... find another point to not short!... those things, many of you knows, but if one do not knows, my work here is already paid.
Good luck, and remember, do not be bad guys, your father will send you to sleep without see television.... hummmmm bad boy!
Carlos
No need to ashamed, i born without walk and talk, and always learning from Pass, from one man from Netherland, John Curl, and a lot of others.
This way, about circuit, it works and of course may be a copy of someone else, why of course guys?, because do not exist one man in earth that never read a book from other people knowledge
written inside, this way, when you learn those thing in University, those informations will be the reference to you, and you will keep things rolling starting using those informations to do your "own circuit"... this kind of "origine" material will be possible if you lock someone in the top of the hill, without communications with the world, this way he will develop a fork, a knife, made with stones.
I perceive some people trying to make bad games, trying to unstabilize others, to make them nervous...bad use, better to be more friendly and not disturb. If you cannot understand, ask the one to explain without this kind of proud that show more weekeness than other thing.
For this one that have no good experience, and send a mail to me, and to the others that always try to reduce others man experience, to diminish their importance... the old rule, if you cannot match them, try to made him not so good!... cannot be taller than him..... climb some stair and talk from that place... or make some dah dah dah! to give us the impression that not minding about nothing.... you, the one, knows that i am directing to you, not all forum, only to you.
About my amplifier, because Sony, Kenwood, and many others making same thing, not clever start with no reference... you will construct some amplifier with a lot of condenser to separate stages... will return to stone age times.
This one is mine, and going to register, also in this forum there are hundreds alike, they all have transistors, this way copy from others because have transistors too?
The amplifier works, and is working now, i am hearing good music with it. now is running cold with only 20 watts peak, not more power is needed if you do not want to disturb neighboors, but some big places need more power, also hard speakers, low efficience ones called, my idea have another name to those damn speaker.
My amplifier first stage, without signal in input, stage voltages.
Diferential transistors - VBE 600 to 610 mV
Second Stage, no more diferential - 620 to 630 mV
Third Stage- 580 to 600 mV
Fourth Stage- 600 to 610 mV
Power output stage- 540 to 550 mV
Idle current to adjust will depend how many output transistor you put.... to be a very safe amplifier, use 12 pairs, and to use only in 4 ohms charge use 4 pairs...your choise.
Thinking it used to 4 ohms, the total current will be 60 mA, rail current.
Before switch on put big resistor, alike 100 ohms, 10 watts in series with plus and minus, this way, measuring the voltage on those resistors you will check:
a) If is same voltage above the positive rail resistor related to the negative rail resistor.... 10 volts on it represents 100mA, 9 volts will be 90mA.... and 1 volt will be 10 mA
b) Current may be the same, with small errors, better if no errors.. same current, but normally you will find some miliamperes diferent in a 5 percent basis.
c) If big voltage on those resistor, the bias is too big, try to reduce... if cannot, check circuit again, something is open circuit, or short circuit somewhere, transistor lead soldered wrong, condenser polarity wrong, some component may be a little hot.
d) Check the output voltage, dc at the amplifier center, the output bar line, i more than some milivolts, error in assembling, check VBE voltages on each transitor.
e)If all is correct, disconnect power and put fuses in the resistor place, and switch on an measure again, the off set voltage (remained small Dc voltage over charge, over the speaker), check the bias using ohms law, measure voltage over the emitter resistor and calculate current, re-adjust current and off set.... voltage and current must be fixed, no variations., no fluctuations. those measurements... all them, must be done with a charge connected in the output.... if all good, put also a fuse in the output line to protect speakers...measure resistance of fuses, sometimes so bad that makes you think amplifier is awfull, and you send to trash a good amp, and a bad fuse.
Use always clean table to assemble and test, remember that under the board (normal boards, mine are different), you can make short circuits because components terminals and solder islands are exposed.
Better to use rubber over the table... not with because your eyes, and not too dark too, the ligth may come from your left side because you use right hand (if you use rigth hand), and cannot put ligth from right side because of shadows.
Isolate all mains wiring, and put transformers and power switch in a safe distance, all expose wire isolated...i use some adhesive made of paper, the white one that is cheap, alike the ones you use to fix absorbers in babies.... put mains and trafo. distant.... more than 50 centimeters, use heavy gauge wires to bring DC to amplifier, avoiding resistance.
Before switch on, check it three times (and some mistake can still there!), take a look in possible shorts with a multimeter and measure resistance from plus to minus, plus to output and negative to output.... hy resistance.... more than 200 K normally... if low.... problems!...or circuit is wrong designed, copied, or assembled...normally bad assembling with mistakes.... one small short can make all voltages crazy, and some component burns without smell or explode... this one, resistance measurements are really first importance before power the unit.
Always, and i made around 4000 thousand, very hard, 10 to 50 in a thousand amplifiers you do not need to balance somewhere... increase or decrease some emitter resistor to change VBE voltage in the next stage.... also some changes in feedback resistor that controls the gain, sometime too much high VBE... do not use more than 650 volts!... because transistor can be near saturation, and will distort..... better VBE's aroud 500 to 580 milivolts DC voltage.
Before assembling, check transistor voltage capacity, related the voltage you gonna use....better this maximum allowable transistor voltage be at least twice voltage it will work... alike voltage from plus to minus (ground out this time)
Transistors not magic or with personallity components, they do not sing good in my comprehension, or sing bad a song, also electrons are all them the same, not big electrons or thin electrons or fat electrons. Have to consider the respectable name of the factorie, the maximum current, maximum voltage, the gain, the maximum frequency and maximum power can transfer to heath sinks... those watts are power dissipation max.... if 100 watts, it means that audio will be around 50 watts and other 50 watts will be heat (sometimes 65 to 35 ratio). If respected will work good
Putt heatsinks on drivers and power units, put bias diodes or transistor working as VBE multiplier, in contact with heat sink.... heat contact, only thermical, not electrical contact.... isolate them if you are a begginer, if not, isolate the heat sinks one related the other with wood, and also all heatsinks from metal chassis with woodem pieces to isolation.
If you amplifier will produce 60 Watts RMS channell, and two channels working, total audio 120 Watts RMS, total consumption are 240 Watts (around), and in 220 volts main, the fuse will be 1 ampere.
Fuses to power, will depends the power the amplifier will hold, made simple calculations only to have an idea.... how many volts it produces over the speaker terminals.... 20 Vots?.... and speaker is 4 ohms?.... put a 5 ampere fuse (not precise, not correct, but works good.
And to protect you speaker.... whats the real power he goes without over drive....put an low frequency audio generator.... 30 hertz or 100 hertz, your choice, i prefer 20 hertz and go increasing amplifier volume till the moment you see speaker movement cannot go further.... this is maximum power... measure with voltimeter....you found 16 volts?..... 8 Ohms the speaker.... can use 2amperes, better 2.5 fuse..... this 16 volts represents 32 watts rms without speaker overdrive and distorts, transforming sinusoidal waves into square waves... forget the manufacturer informs, all them lye too much!
You will see that, hard to find normal speaker, the standard ones, not top high excursion, hy power units, but normal ones normally cannot go to 8 volts (8 to 10 watts maximum).... the good ones goes to end excursion with only 4 volts (2 watts if 8 ohms)
Good luck.... experience is hard to learn... all of you , the young ones, have to burn a lot to learn things, about isolate multimeter tips because you will always send circuits to hell when measuring VBE or VCE voltages on it... do not measure on transistors... find another point to not short!... those things, many of you knows, but if one do not knows, my work here is already paid.
Good luck, and remember, do not be bad guys, your father will send you to sleep without see television.... hummmmm bad boy!
Carlos
Make a brain check up
I measure less than 150 culhonohms, you are with low pressure brain, have to inflate it.
hahahaha!
Mine too!
Some boy from US wrote me one Mail full of new words to me.
But do not translate, i think he wanted to say love me.
First was You are the son of a beach, Yeahhh!, i really born in front of the beach.
Other was that i am sucker, or sukker, not know.... when baby sucks milk...Yeahhhhhh!... correct.
but the F... myself is no good.... can be got to bed with your wife...no!.... i gonne already.
And i do not know....i think i will ask you all, putting as threads!?
hohohô....big Charlie is alive again!
See pictures near Sweden... to food your dreams!....hahaha!
Someone told me he is in my appartment.... that explaind whole thing, isn't it?
That's because american movies so good, you have enormous imagination.
Carlos
I measure less than 150 culhonohms, you are with low pressure brain, have to inflate it.
hahahaha!
Mine too!
Some boy from US wrote me one Mail full of new words to me.
But do not translate, i think he wanted to say love me.
First was You are the son of a beach, Yeahhh!, i really born in front of the beach.
Other was that i am sucker, or sukker, not know.... when baby sucks milk...Yeahhhhhh!... correct.
but the F... myself is no good.... can be got to bed with your wife...no!.... i gonne already.
And i do not know....i think i will ask you all, putting as threads!?
hohohô....big Charlie is alive again!
See pictures near Sweden... to food your dreams!....hahaha!
Someone told me he is in my appartment.... that explaind whole thing, isn't it?
That's because american movies so good, you have enormous imagination.
Carlos
Attachments
One other, can this be in Sweden
Mein neue Deustchland, ich bin hier, till, du bist mein freund.
Those words, maybe in swedish....or german.... who wrote those words?
I think Carlos has another family name, can he be Hallo brother, yes...he is in his heart.
But true life, guys, i did not even met this man.... but i want it.
Carlos
Mein neue Deustchland, ich bin hier, till, du bist mein freund.
Those words, maybe in swedish....or german.... who wrote those words?
I think Carlos has another family name, can he be Hallo brother, yes...he is in his heart.
But true life, guys, i did not even met this man.... but i want it.
Carlos
Attachments
I think he came from Arabia...maybe.
I am full of girls surrounding me, all life i was this lucky guy, money not, god employment, sometime, but never without a lot of woman surrounding me...i know how to be interesting to them.... never let them believe you cannot kick their a.. this is the secret.
Carlos
I am full of girls surrounding me, all life i was this lucky guy, money not, god employment, sometime, but never without a lot of woman surrounding me...i know how to be interesting to them.... never let them believe you cannot kick their a.. this is the secret.
Carlos
Attachments
Devil and karma, hellô
Devil, for me is a pleasure met you again, and Karma, special pleasure have you one more time.... and please, do it again, you both!
The circuit, full of transistors, is receiving low level audio and is increasing it, this way, becaming ample, large, great and strong, i will put a name on it.... i will call this strong machine as "Amplifier", not only because it is amplifying my source, but because it is ample, it is big, enormous and completely stupid i think (sorry the ones that did those things too), i understood!....i could see!.... i could feel..... i perceive..... i had the understanding... that all that is a mistake!.... better to have a small and lightweigth headphone, a class a JLH small amplifier to headphone and connected direct to source.
Do not disturb neighboors
Do not spend energy
Do not pay zilions of zollares
Do not be crazy with reflections
Do not make your family crazy with you because noise
Cannot look my face in mirror today, discover that yesterday.
Carlos
Devil, for me is a pleasure met you again, and Karma, special pleasure have you one more time.... and please, do it again, you both!
The circuit, full of transistors, is receiving low level audio and is increasing it, this way, becaming ample, large, great and strong, i will put a name on it.... i will call this strong machine as "Amplifier", not only because it is amplifying my source, but because it is ample, it is big, enormous and completely stupid i think (sorry the ones that did those things too), i understood!....i could see!.... i could feel..... i perceive..... i had the understanding... that all that is a mistake!.... better to have a small and lightweigth headphone, a class a JLH small amplifier to headphone and connected direct to source.
Do not disturb neighboors
Do not spend energy
Do not pay zilions of zollares
Do not be crazy with reflections
Do not make your family crazy with you because noise
Cannot look my face in mirror today, discover that yesterday.
Carlos
Thank you god, you hurt me, as a punch, and open my mind!
To all forum i will say now:
God, the only one, can call him the way you wanted, Jesus,Mohamad,oxalá.... do not mind about that, when you ask him a telephone will ring in heaven, and he will listen to all of us.
I had a vision, some step ahead in my inteligence, so small i was.... i receive a punch in middle of stomach when my brother silenced himself an write letter talking about damn life... he is in peace now!.... a friend, like a brother, the one that will substitute my brother, came here, smilling in a ironic way, he opened his bag, and small aiwa got out, with batteries ! i was chocked...how deer you Paulo, this bull Sh-- in my house!?
He plugged and ask me some cd, i took the number one to be happy.... I think is Gloria Gaynor " WILL SURVIVE!" and them he put small headphone, the Aiwa one (this company belongs to Sony in 1982....do not know today, maybe chin gun chen from China or those wonderfull names alike that (not kidding, i like the names and the people too...food is wonderfull!).... i said Aaaagh! (no good).....he put another small earphone, this one Sony, i said Yaaaaagh (awfull too), them he put a 5 dollares holland Phillips lightweith headphone... i said (hummmm, very good, it seem my sound... the bedroom sound... gooood!), and i asked him... why those Holland Phillips are always better than all you find...because they use wooden shoes, do not put their foot on sh--! he answered smiling because the reference...no one use shoes in my house... this is dirty....i leaned with Japanese, old culture....house clean...shoes outside!
He said, close your eyes... and something ligth goes into my head with confortable cushions...environment sound, ambience sound, natural noises disapear.... and a magnificent sound.... i told him a brazilian dirty sentence....i open my eyes and could see... Phillips, Holland again!!!.... how much this damn thing that destroyed all my sound and speakers!!!.... he said , this is not the best, is the second in hierarchy inside Phillips Holland..... 25 dollares.
I was shocked...i am shocked..... good as the best sounds i could hear.... i spent long time to only be close to this sound....but could not reach.... this damn phone with some JLH class A will beat everyone!!!
This way, next Saturday i will go with my amplifier...this one i shown you... good, but no special, cannot be better than Aiwa cd player...you can shake it without problem...has memory that record in advance the audio.... and the headphone will be there....our club will never finish, because we like vibrations too....but i now people will be confused....i will go with a package full of BIG BANANAS .... they are cheap like trash here.... i will tell him to use this banana , to put the place they think more convenient.... because this is the feeling! (goes thinking and you will discovered what to do with those bananas!...not to eat!!!)
But, as a defensive systems, because i am neurotic, paranoic and all stuff you wanted..... sound crazy, sound maniac, and i will go one my research into the impossible!.... perfect sound...impossible with those ridiculous pumping speakers... someone will discover some electrostatic electroforesis, electro dinamical driver with hi frequency ray between gaps beeing modulated by audio...or something alike.... to substitute those air pumps...have you take a hi speed picture of the cone when hard driven.... ... do it.... crazy thing!
Construct my amplifier,yes... wonderfull to revenge on damn neighboors... incredible to party, and you can also use it as a heater in winter days, or to block your door when windy day.
Carlos
To all forum i will say now:
God, the only one, can call him the way you wanted, Jesus,Mohamad,oxalá.... do not mind about that, when you ask him a telephone will ring in heaven, and he will listen to all of us.
I had a vision, some step ahead in my inteligence, so small i was.... i receive a punch in middle of stomach when my brother silenced himself an write letter talking about damn life... he is in peace now!.... a friend, like a brother, the one that will substitute my brother, came here, smilling in a ironic way, he opened his bag, and small aiwa got out, with batteries ! i was chocked...how deer you Paulo, this bull Sh-- in my house!?
He plugged and ask me some cd, i took the number one to be happy.... I think is Gloria Gaynor " WILL SURVIVE!" and them he put small headphone, the Aiwa one (this company belongs to Sony in 1982....do not know today, maybe chin gun chen from China or those wonderfull names alike that (not kidding, i like the names and the people too...food is wonderfull!).... i said Aaaagh! (no good).....he put another small earphone, this one Sony, i said Yaaaaagh (awfull too), them he put a 5 dollares holland Phillips lightweith headphone... i said (hummmm, very good, it seem my sound... the bedroom sound... gooood!), and i asked him... why those Holland Phillips are always better than all you find...because they use wooden shoes, do not put their foot on sh--! he answered smiling because the reference...no one use shoes in my house... this is dirty....i leaned with Japanese, old culture....house clean...shoes outside!
He said, close your eyes... and something ligth goes into my head with confortable cushions...environment sound, ambience sound, natural noises disapear.... and a magnificent sound.... i told him a brazilian dirty sentence....i open my eyes and could see... Phillips, Holland again!!!.... how much this damn thing that destroyed all my sound and speakers!!!.... he said , this is not the best, is the second in hierarchy inside Phillips Holland..... 25 dollares.
I was shocked...i am shocked..... good as the best sounds i could hear.... i spent long time to only be close to this sound....but could not reach.... this damn phone with some JLH class A will beat everyone!!!
This way, next Saturday i will go with my amplifier...this one i shown you... good, but no special, cannot be better than Aiwa cd player...you can shake it without problem...has memory that record in advance the audio.... and the headphone will be there....our club will never finish, because we like vibrations too....but i now people will be confused....i will go with a package full of BIG BANANAS .... they are cheap like trash here.... i will tell him to use this banana , to put the place they think more convenient.... because this is the feeling! (goes thinking and you will discovered what to do with those bananas!...not to eat!!!)
But, as a defensive systems, because i am neurotic, paranoic and all stuff you wanted..... sound crazy, sound maniac, and i will go one my research into the impossible!.... perfect sound...impossible with those ridiculous pumping speakers... someone will discover some electrostatic electroforesis, electro dinamical driver with hi frequency ray between gaps beeing modulated by audio...or something alike.... to substitute those air pumps...have you take a hi speed picture of the cone when hard driven.... ... do it.... crazy thing!
Construct my amplifier,yes... wonderfull to revenge on damn neighboors... incredible to party, and you can also use it as a heater in winter days, or to block your door when windy day.
Carlos
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