Not true with speakers matched to the job at hand. I can drive you from the room with A-7 or the E waves....with your speaks, this is no doubt true, but they are somewhat power hungry for an F-5.
Russellc
I have 50watt(AB)
always plenty of power
apart from those few crazy days when I get the urge to play really loud
and it ussually ends at full crancked volume
but then distortion gets annoying
and still not what I would call really loud
then I back off a bit, and decide its loud enough, and clean
but to make it bloddy sceaming loud, you will probably need 100watt minimum
and then most likely still loose a good part of the important quality
also consider that your room 'distorts' the sound more at louder SPL
and speakers distortion rise, both the drivers and crossovers
I think its just a bad listening habbit, or a party thing
or some strange need to try and impress someone
well, just my personal opinion about playing too loud
or me getting older
still like it loud tho, so its probably good I only have small power amps
always plenty of power
apart from those few crazy days when I get the urge to play really loud
and it ussually ends at full crancked volume
but then distortion gets annoying
and still not what I would call really loud
then I back off a bit, and decide its loud enough, and clean
but to make it bloddy sceaming loud, you will probably need 100watt minimum
and then most likely still loose a good part of the important quality
also consider that your room 'distorts' the sound more at louder SPL
and speakers distortion rise, both the drivers and crossovers
I think its just a bad listening habbit, or a party thing
or some strange need to try and impress someone
well, just my personal opinion about playing too loud
or me getting older
still like it loud tho, so its probably good I only have small power amps
I presume that your "very efficient" speakers aren't really "very efficient". With my loudspeakers (96dB 1W/1m) I can get up to 106dB on my sofa. Except if the listener are deaf, is more than enough for a loud listening
"The power of 2.6 amps into 8 ohms is I^2 * R, or 2.6 * 2.6 * 8 = 54 watts. This is the peak
value, and the nature of an undistorted sine wave is that the peak wattage is twice the
average, so this circuit would operate 27 watts average Class A into 8 ohms. At currents
above 2.6 amps one of the transistors will shut off, leaving the other to continue to increase
beyond the 2.6 amps in what is known as Class AB."
I don't have to say who said that, right?
value, and the nature of an undistorted sine wave is that the peak wattage is twice the
average, so this circuit would operate 27 watts average Class A into 8 ohms. At currents
above 2.6 amps one of the transistors will shut off, leaving the other to continue to increase
beyond the 2.6 amps in what is known as Class AB."
I don't have to say who said that, right?
I dont understand. Is AD712 an amplifier. I pulled this 3 vrms from the manual.
"The power of 2.6 amps into 8 ohms is I^2 * R, or 2.6 * 2.6 * 8 = 54 watts. This is the peak
value, and the nature of an undistorted sine wave is that the peak wattage is twice the
average, so this circuit would operate 27 watts average Class A into 8 ohms. At currents
above 2.6 amps one of the transistors will shut off, leaving the other to continue to increase
beyond the 2.6 amps in what is known as Class AB."
I don't have to say who said that, right?
What happens in case of double output mosfets.
Thanks
pandu
Looks good for me But as I live pretty close to the equator, I have a very short winter. Amp emitting 600 to 700 watts continously as heat is a problem. I would need to bump up my AC in such case.
Thanks
Pandu
I currently run a digital front end (output 2V rms) into B1 (no gain) into F5 into 96dB/W speakers (8 Ohm). My B1 potentiometers are usually at 8 or 9 o'çlock, so I am throwing away most of the input to the B1. If I listen LOUD I do not get above 10 o'clock. Room is 5m x 8m.
96db is a world appart from my 89ish...
In every single review I have read of the Spendors - there are plenty still arround - they were hooked onto monster amps, both watt and current wise... suspicious...
My situation is different. I usually (90% of the time) listen to minuscule listening levels. Wisper - level. Think of my X2 preamp on the first or second click - yes from the left. Nine o clock would be my party mood if I was able to get there. Small house - many people in it, I usually arrive last when everyone is dead tired or asleep... my listening session will start when most humans in the house are asleep - maybe one will still be up ironing baby clothes mountain.
This is where the F5 will be called to deliver. Question is: will he?
I throw signal away because I have too much gain, even with zero gain with the B1.
You need more gain but have plenty of gain with the X2.
What I win on sensitivity of speakers (7dB), you easily win in gain of preamp.
Edit:
I used to listen to an original Aleph 3 on 83-85dB Magnepan MGIIIa's. Fantastic at low levels. Ran out of steam for anything a bit louder.
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That what I asked some months ago (in post 10982):
http://www.diyaudio.com/forums/pass-labs/121228-f5-power-amplifier-1099.html#post2708378
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