Hey! My current amp's (palmer lx 6-150) noisefloor is too high to run my synergies in my room. I think I might have found an alternative with some Yamaha p4050 that are sold second hand at the moment. These are Yamahas specifications:
I guess residual noise is the noise floor? Is that any good?
I guess residual noise is the noise floor? Is that any good?
Hey!
I have no information whatsoever of the lx 6-150. I only have it because i got it for 200 euros and it has 6 channels. And it does its job, when the volume is high enough!
Maybe I should reframe the question, whether the Yamaha will have audible noise floor with my high sensitivity compression drivers (106db/Wm + hornloaded)? And I guess @cumbb answer means: yes, messy noise will be very very audible 🙂
My problem is, that low budget amps are either 2-channel (eg. t.racks s-075), have loud fans (eg. behringer epq304) or a bad noisefloor (monacor sta-850d)...
Do you listen at home or do you use it for party pegel or even disco?
If you listen at home, then a small SE tube or transistor amplifier will suffice. Here you have the chance to achieve both perfect sound tuning and noise minimization by selecting the right parts: parts have their own sound, produce noise. And the sounding and noisy parts such as solder joints, circuit board paths, power supplies and more are minimized, so the omitted have no audible influence;-)
If you listen at home, then a small SE tube or transistor amplifier will suffice. Here you have the chance to achieve both perfect sound tuning and noise minimization by selecting the right parts: parts have their own sound, produce noise. And the sounding and noisy parts such as solder joints, circuit board paths, power supplies and more are minimized, so the omitted have no audible influence;-)
I need 6 Channels, with clipping indicators and Amping should allow playing them loud, as I use them for small parties occasionally. 150W/4Ohm per channel was a good measure. Compression driver and mid/highs need much less power of course, but all channels being the same seems to be easier to set-up the dsps
Loud playing, small parties and high sensitivity speakers - since when that sort of combo has become a fashion? 🙂
I would recommend PA-940:
But here too: Keep the transformers away from people. (If I had three stereo power amplifiers, I would build a separate power supply unit and feed it to the three amplifier housings via plug connections.)
These amplifiers are so simple and on the one hand easy to repair and also have an excellent sound, also suitable for home hi-fi - compared to highly complex complementary transistor push-pull amplifiers. Better than Le Monstre or Classe A, Hiraga, as example.
I would install a little more capacity, larger electrolytic capacitors, at the beginning.
For your tasks, however, do not replace the power transistors with TO-220 types (I recommend it). But I would also look at TO-3P or TO-247. These "Sanken" in TO-200 are among the worst sounding.
The PA-940 are also a great basis for changing the sound enormously simply by replacing components.
But here too: Keep the transformers away from people. (If I had three stereo power amplifiers, I would build a separate power supply unit and feed it to the three amplifier housings via plug connections.)
These amplifiers are so simple and on the one hand easy to repair and also have an excellent sound, also suitable for home hi-fi - compared to highly complex complementary transistor push-pull amplifiers. Better than Le Monstre or Classe A, Hiraga, as example.
I would install a little more capacity, larger electrolytic capacitors, at the beginning.
For your tasks, however, do not replace the power transistors with TO-220 types (I recommend it). But I would also look at TO-3P or TO-247. These "Sanken" in TO-200 are among the worst sounding.
The PA-940 are also a great basis for changing the sound enormously simply by replacing components.
Hey! Thank you for your detailed answer, I don't think I am skilled enough to mod amps. So diy applies to the speakers in my case but the rest is dsp and second hand amps.
What do you think about the img stage line/monacor sta 850d? I am very skeptical, due to the unprofessional terminals, but they seem to deliver what I need for a bargain?! (Second hand: 100 euros for 4*50W and 2*100W @ 4Ohm)
What do you think about the img stage line/monacor sta 850d? I am very skeptical, due to the unprofessional terminals, but they seem to deliver what I need for a bargain?! (Second hand: 100 euros for 4*50W and 2*100W @ 4Ohm)