Zhalou P1 Audio Power Amplifier

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mrdon

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Zhalou P1 Audio Power Amplifier
« on: 20 Feb 2007, 08:25 am »
I just saw this over at diykits.com. I know that Zhalou DAC's are very popular amongst DIY'rs and given the price quoted to me as $124USD shipped to USA this may be another extreme value component to add to my system.

Here's some specs:
It's small - width just under 10", height is just over 5" and length is almost 15". It puts out 100W per channel (RMS) and can be used as both an integrated amp and a power amp. It has single-ended output circuit for CD. IEC connector for upgradeable power cords. Alps RK27 potentiometer. Seperate PCB's for power and audio. Gold RCA's and binding posts. I was told by Wu at diykits that its sonic signature leans more towards the warm side of neutral. In his words, it tries to "approach...tube sound."

There's more info. available Here at Zhalou's website via google translator. (Use IE for browser in order to see pics fully)

Now for some pics...




Any one have this amp? Any expert comments or critiques?

Audiovista

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Re: Zhalou P1 Audio Power Amplifier
« Reply #1 on: 20 Feb 2007, 12:07 pm »
Wow! And it's looking great too.

Meicheng

  • Full Member
  • Posts: 528
Re: Zhalou P1 Audio Power Amplifier
« Reply #2 on: 21 Feb 2007, 01:28 am »
There may be some pricing confusion here.  I believe the cost of the amp is $208 and the shipping to the US is an additional $124.  At least that is what DIY emailed me. 

Occam

Re: Zhalou P1 Audio Power Amplifier
« Reply #3 on: 21 Feb 2007, 02:11 am »
While the amp might be able to produce 100watts/channel for a short period of time, it simply does not have enough heatsinking or ventilation of those sinks to produce a continuous 100wpc RMS. Nor do I know of any pair of transistors/mosfets (save for some very large industrial MosFets, which they're not) capable of doing this. That being said, they may be capable of that power for intermittent periods. Not seeing any inductors, I'm assuming its a low bias class aB amp, and their are certain realities, efficiency and thermal dissipation that one cannot bypass. It certainly does look like a good material value. I've dealt with Eddie Wu at diykits.com/hk, and have allways been very pleased with the products (Zhaolu dac) and their support I've received from him.

FWIW,
Paul