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In Reply to: RE: Relentless posted by DustyC on August 08, 2024 at 14:43:32
The two most expensive parts of an amp are the chassis and the transformer.
Follow Ups:
Unless you go gen 3 Class D
Hi, after finally giving up my belief in passive preamps I found a nicely built simple preamp for 35 bucks new.I spent another 20 bucks for GE tubes. The build quality is shown in a nice picture.There seems like there's so much less circuitry for the power amp to send it's signal thru than the 3 piece Relentless. I know it's made in China and I would like to buy American but it's a no-brainer.Like the T V ad with a battery on Robert Conrad's shoulder,nothing can knock this off sonically that a non millionaire can afford. Another company that shows all and could compete with the Relentless is Primaluna,all quality parts shown and a drastically lower price than the Relentless.Take care, Mark Korda
Audiophiles almost always under rate the importance of the power supply. You almost can't have too big a power supply so it doesn't vary which will distort the output signal. The power supply is the amp or preamp. The output signal comes directly from the power supply, not from the amplifier circuit. The amplifier circuit merely modulates the electricity from the power supply. That's why great amplifying devices have great power supplies.
I actively learned that lesson by applying Frank Van Alstine's concepts to components I had as a teen. Current power amps have 500 joules of energy. Preamp has 38 which is more than quite a few 100 watt amps.
Even makes a difference with digital endpoints in terms of modulated noise and low impedance drive for optimum dynamics.
Here is my set up.The cable lifter is an old used 3M sanding sponge cut in half (True Grit)...-Mark K.
What speakers are you using? The Dynaco amp is a great little amp but optimistically rated at 17 watts.
Hi Hahax, The Dyna is in my bedroom which is very small.I live in a mobile home. I am using a restored pair of Dynaco A25 Mark 2's. I fixed the dinged corners with Bondo and redid the grills with burlap,it's so porous it's like no grill at all. I painted them black and use Mortite for speaker caulking. When my woofers and tweeter are screwed in the metal frame never touches the wooden cabinet. The original Dyna woofer gasket is paper thin,I have a picture.This Dyna A-25 Mark 2 came out in 1978.The crossover is simpler than the original and uses an L pad instead of fixed resistors as in the original A 25. They were made in Blackwood N.J. and used Seas drivers.It differed from the Dyna A 25 XL by putting the tweeter in line with the woofer on top and not to the right. My original pair I bought new in 78 at at something like 109 bucks.The steal of the century. Let me try a picture...-take care Hahax...-..
The A25 was a great speaker, especially for the money. It's been decades since It was especially good in the bass, not so much how low it went but the quality and control.I heard them but I'd bet they'd sound even better with tons of power.
By the way I used Mortite to seal the drivers on my speakers too.
The biggest difference between the A25 and A25XL was a smaller, improved tweeter that had better dispersion(since it was smaller) and went out a little further.
Hahax...-A25 Mark2
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