any attempt to use 4" driver below 200 Hz is futile
you may get some sound, but it will be heavily distorted
any distortion in bass region means series of upper harmonics messing up the midrange
if this is what you like, fine with me, but its not hifi
you are just destroying otherwise nice mid-tweeter
I have said it before, and now I have said it again.
you may get some sound, but it will be heavily distorted
any distortion in bass region means series of upper harmonics messing up the midrange
if this is what you like, fine with me, but its not hifi
you are just destroying otherwise nice mid-tweeter
I have said it before, and now I have said it again.
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sorry
sorry no,
up to 95 dB 1m works in a double horn with 1,5 mm stroke,
if you look the linearisation of membran movement, around
1W you get a sum movement below 0,6 mm down to 40 Hz,
next time i made a K2 +K3 measurement, the producer measurement
of the data made with a IEC baffle, so the driver get moving and produces intermodulation distortion, in a double horn you get the lowest movement,
by the way 3% distortion below 100 Hz are barely listenable.
sorry no,
up to 95 dB 1m works in a double horn with 1,5 mm stroke,
if you look the linearisation of membran movement, around
1W you get a sum movement below 0,6 mm down to 40 Hz,
next time i made a K2 +K3 measurement, the producer measurement
of the data made with a IEC baffle, so the driver get moving and produces intermodulation distortion, in a double horn you get the lowest movement,
by the way 3% distortion below 100 Hz are barely listenable.
4" Bass
Hello,
here a user feedback on a DIY show:
go.. translated
The combination Trumpet with ESS and Sub-Fanfare works well together.
Trumpet on a tube SE 509 and the sub-Fanfare to the active part.
Stand in a few 100 m² large barn and in listening distance of 5-6 meters
It was significantly loud enough to down in the bass range.
According to the calculations is possible with the Sub-Fanfare a maximum sound pressure of 105 dB.
The small four woofers together just the membrane surface of a
have great 20ers! Wow, crisp and to the point.
Limited has the level not the bass department but the Sica, with its well
not low efficiency in the Trumpet because I the lower boundary 200μF
had forgotten.
But it was also so loud that you look at 5 Metres listening distance clearly in the ears
speak had to allow an understanding. 🙂
In several photographs of techno and percussion could be heard clearly
like the fanfare seamlessly to the basement went down.
With the Trumpet a very dynamic combo is fun and
a wide and deep stage magic.
look the sub Fanfare:subfanfare
you are right in CB or BR the bass of a 4" is weak but in my double horns you get an active area of two 8" below 250 Hz
by the horn, thats the difference in sound and size.
Hello,
here a user feedback on a DIY show:
go.. translated
The combination Trumpet with ESS and Sub-Fanfare works well together.
Trumpet on a tube SE 509 and the sub-Fanfare to the active part.
Stand in a few 100 m² large barn and in listening distance of 5-6 meters
It was significantly loud enough to down in the bass range.
According to the calculations is possible with the Sub-Fanfare a maximum sound pressure of 105 dB.
The small four woofers together just the membrane surface of a
have great 20ers! Wow, crisp and to the point.
Limited has the level not the bass department but the Sica, with its well
not low efficiency in the Trumpet because I the lower boundary 200μF
had forgotten.
But it was also so loud that you look at 5 Metres listening distance clearly in the ears
speak had to allow an understanding. 🙂
In several photographs of techno and percussion could be heard clearly
like the fanfare seamlessly to the basement went down.
With the Trumpet a very dynamic combo is fun and
a wide and deep stage magic.
look the sub Fanfare:subfanfare
you are right in CB or BR the bass of a 4" is weak but in my double horns you get an active area of two 8" below 250 Hz
by the horn, thats the difference in sound and size.
Attachments
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wow! you had to use 15mH coil, most likely to filter out all nasty peaks of upper mid resonances...would like to see unadulterated response, or rather not
at the end you created one note samba sub, congrats
one 15" woofer would sound way better, that's my bet
at the end you created one note samba sub, congrats
one 15" woofer would sound way better, that's my bet
watt
Hello,
no your 15" will never sound better below 0,5 W normal 90 % listening level,
show me one 15" with a Rms below 1, the facial in this case has 0,4,
by 15" large and heavy membran mass you slow down the music by mass inertia.
look the measurements of aktive version in feedback there are no peaks by
membran movement interlacing and bass horn mouth distanz.
In 80 sqm with level above 100 dB i would take two 12",
like my sideboard sub: DH2x30
Hello,
no your 15" will never sound better below 0,5 W normal 90 % listening level,
show me one 15" with a Rms below 1, the facial in this case has 0,4,
by 15" large and heavy membran mass you slow down the music by mass inertia.
look the measurements of aktive version in feedback there are no peaks by
membran movement interlacing and bass horn mouth distanz.
In 80 sqm with level above 100 dB i would take two 12",
like my sideboard sub: DH2x30
Attachments
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suit yourself...as I said
there is no such thing as slow or fast signal...when you play 30 Hz sine wave, it is 30 Hz sine wave, that's what it is, it is neither fast nor slow, you simply do not know what you are talking about
slow and fast subwoofers were discussed ad nauseam...
perhaps that small woofer has so much distortion in upper harmonics, that you like it and perceive it as "fast"
heavy cone with very strong magnet will have the same 30 Hz sine wave as light cone, however, small 4" cone, which has by laws of physics very poor performance at 30Hz, will sound like s#&t
as I said suit yourself! I am wasting my time here with you, I am out!
there is no such thing as slow or fast signal...when you play 30 Hz sine wave, it is 30 Hz sine wave, that's what it is, it is neither fast nor slow, you simply do not know what you are talking about
slow and fast subwoofers were discussed ad nauseam...
perhaps that small woofer has so much distortion in upper harmonics, that you like it and perceive it as "fast"
heavy cone with very strong magnet will have the same 30 Hz sine wave as light cone, however, small 4" cone, which has by laws of physics very poor performance at 30Hz, will sound like s#&t
as I said suit yourself! I am wasting my time here with you, I am out!
Thanks
sorry,
you don´t know Rms T/S parameter, mass inertia a low level is a fakt by high mass of membrans the resolution is out like you.
sorry,
you don´t know Rms T/S parameter, mass inertia a low level is a fakt by high mass of membrans the resolution is out like you.
Funny you should say that🙂 Just embarking on doing an faitaLX using the 4". But which would be best? the 4fe35, qts 0.8 easy to mount but near blocking the tube, or the 4fe32 qts 0.6 (same as the Seas) a total nightmare to mount, but leaving plenty of airspace around the magnet in the tube.The Seas leaves a gap of 9mm between magnet and tube, the fe35 only 3mm, but does the inside of the tube do anything anyway?
The inside of the tube is stuffed, it attenuates, the outside diffuses.
"diffusing as well as attenuating structure for controlling the rear radiation"
I suppose that depending on how closely you're placing these to your front wall the attenuation part might not matter as much?
Plenty of options to experiment with this 😀
"diffusing as well as attenuating structure for controlling the rear radiation"
I suppose that depending on how closely you're placing these to your front wall the attenuation part might not matter as much?
Plenty of options to experiment with this 😀
I've got a pair of 3Fe22-8 collecting dust as well that I don't know what to do with. At first I was thinking of making something cute together with a pair of Chinese AMT mini8 I've also got lying around, but then I realized the 3Fe22 would be beaming waaay too much at 5kHz where the little AMT needs to be xo'd (need to be paired with a 1.5-2" up there).
From a directivity point of view, they'd be good at just below 3kHz so I may pair them with a tweeter that likes being crossed a bit higher, e.g. the pair of NeoCD1.0 that I also have in a drawer somewhere...
EDIT: I would also be using these only down to 700-850 Hz with a 8".
From a directivity point of view, they'd be good at just below 3kHz so I may pair them with a tweeter that likes being crossed a bit higher, e.g. the pair of NeoCD1.0 that I also have in a drawer somewhere...
EDIT: I would also be using these only down to 700-850 Hz with a 8".
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Working with modern DSP boxes (such as MiniDSP) are closer to turning knobs than they are to programming. There really isn't a lot to it unless you are doing odd things like allpass filters or using a FIR type setup. The control programs they have for them are really very straightforward (and gobs easier than using analog active crossovers or passive crossovers).
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