$175 Class D amp--120 wpc

santacore · « **Reply #20 on:** 16 Jan 2010, 09:47 pm »

This is very interesting.......just might have to try one.

My beef with Class D is that they sound very dry to my tube loving ears. I just don't get the width/depth/air that I get with tubes. I will be very pleased if the current designs have fixed this.

steve k · « **Reply #21 on:** 16 Jan 2010, 09:53 pm »

The nice thing about this, is it's cheap enough to try out for yourself in your own system. It sounds too good to be true for the price and YMMV in different systems but it's already converted three of us from tubes. Never thought I'd say that.

ohenry · « **Reply #22 on:** 16 Jan 2010, 10:06 pm »

My main issue with the low powered tripath amps has been the edginess of the highs which made for fatigue in my instance. I've heard a few folks saying that the newer, higher powered class d amps are different beasts, so to have another credible set of ears testifying to that makes this tempting.

Steve, thanks for the report!!!

Mariusz · « **Reply #23 on:** 16 Jan 2010, 10:21 pm »

This is fantastic find ( based on your review).
Just finished double mouth, hornloaded enclousures for my newly bought Jordan drivers. It turns out that their power requirements excise what I have on hand.
Seems like this kit might be the answer.

Thanks for interesting post.

Best
Mariusz

sts9fan · « **Reply #24 on:** 16 Jan 2010, 10:35 pm »

$175?? Not bad but if you want to try out ClassD cheap I think it's hard to beat a 41hz Amp6 basic for something like 36Euros. All you need to do is add a wall wart or battery. I think they sound as good as the trends.

Mariusz · « **Reply #25 on:** 16 Jan 2010, 10:45 pm »

Can you provide the link for future references ???

Thanks again

Mariusz

steve k · « **Reply #26 on:** 16 Jan 2010, 10:47 pm »

It's in my first post.

http://classdaudio.com/

jtwrace · « **Reply #27 on:** 16 Jan 2010, 10:51 pm »

I emailed Tom at class D audio and asked if he would share a Promo code with us at A.C. He instantly said yes. You need to log in here: https://classdaudio.com/index.php/customer/account/login/

In the checkout process use this promo code for a 5% discount: ACircle

steve k · « **Reply #28 on:** 16 Jan 2010, 10:56 pm »

Good thinking. Why didn't I think of that???

santacore · « **Reply #29 on:** 16 Jan 2010, 10:59 pm »

Besides the power output, is one kit better then the other?

starkiller · « **Reply #30 on:** 16 Jan 2010, 11:18 pm »

hmm, might those "friends" of yours might make me a cabinet ?

steve k · « **Reply #31 on:** 16 Jan 2010, 11:23 pm »

I haven't heard them to compare but I do know all the kits use the same chip except the 600 watt amp and the 160 watt which use a Texas Instrument chip. From what I've read, the TI chip doesn't sound as good but I haven't heard it myself.

jtwrace · « **Reply #32 on:** 16 Jan 2010, 11:27 pm »

I ordered the 600w kit so we'll find out how that sounds.

steve k · « **Reply #33 on:** 16 Jan 2010, 11:28 pm »

Quote

hmm, might those "friends" of yours might make me a cabinet ?

I will ask them.

This might be a good question for the DIY'rs on the Lab.

steve

steve k · « **Reply #34 on:** 16 Jan 2010, 11:38 pm »

A couple things you might want to discuss with Tom if you are ordering one of these amps:

He recommends an input impedance up to 600 ohms. So if your preamp output impedance is higher, I'd talk to him about it first.

Second,

His standard amp board is set at 32 dB gain. We had him lower it to 26 dB since that is more standard in the industry.

I don't know enough about the theory here to know how significant these issues are but I thought it was worth mentioning.

steve

starkiller · « **Reply #35 on:** 16 Jan 2010, 11:48 pm »

will have to ask him as my preamp impedence is 1 mega-ohm....

doug s. · « **Reply #36 on:** 17 Jan 2010, 12:01 am »

Quote from: starkiller on 16 Jan 2010, 11:48 pm

will have to ask him as my preamp impedence is 1 mega-ohm....

are you sure that is the output impedance? sounds like it's the input impedance. i have never heard of a preamp w/output impedance higher than ~2kohms...

doug s.

poseidonsvoice · « **Reply #37 on:** 17 Jan 2010, 12:07 am »

Quote from: jtwrace on 16 Jan 2010, 10:51 pm

I emailed Tom at class D audio and asked if he would share a Promo code with us at A.C. He instantly said yes. You need to log in here: https://classdaudio.com/index.php/customer/account/login/

In the checkout process use this promo code for a 5% discount: ACircle

Dude! You're the man!

Best,
Anand.

starkiller · « **Reply #38 on:** 17 Jan 2010, 12:09 am »

you be right, thats the input impedence...been a dreary day here in seattle...as usual

Quote from: doug s. on 17 Jan 2010, 12:01 am

are you sure that is the output impedance? sounds like it's the input impedance. i have never heard of a preamp w/output impedance higher than ~2kohms...

doug s.

drab · « **Reply #39 on:** 17 Jan 2010, 01:09 am »

There has been some talk about these at DIYAudio for a while. For those interested:

http://www.diyaudio.com/forums/class-d/152980-class-d-audio-who-these-guys.html