Class T-amps

[leo]

Well I like this TA 2022 chip.Sounds very valve-like to me,with very deep and tight bass.Have you tried the Hypex units? What do you think?

Hi Ali,

Sorry I missed this.

I've had the Hypex's a few years now run as mono's , PSU's using MBR20200discrete rectifiers, 4-pole T-net caps , I've done some mods to the amp modules etc.
The sound isn't bad really, detailed and controlled but not as lifelike as I'd like, I want something which is going to be a step up rather than sideways move if possible. Theres obviously other options like a valve amp or some other decent solid state amp to try, dunno

[Ali Tait]

Cheers Leo,they seem to get a lot of good comments on diyaudio,but sounds like they're not as good as they are made out to be.Maybe try one of those valve buffers on the front end?

[leo]

Cheers Leo,they seem to get a lot of good comments on diyaudio,but sounds like they're not as good as they are made out to be.Maybe try one of those valve buffers on the front end?

I think its more like I expected too much from them tbh can be quite a picky scroat at times

I've been running them balanced input directly from the modified Buffalo32 dac using its volumite to control the vol, probably the best I've heard them so far.
Could probably try valve buffers , I guess this may just add flavour? ideally I'd just like to try a real good kick arse diy amp, something new but better rather than different

[dave2010]

Jerry

I have just ordered one of these Andrew so I will be watching your posts wth interest. The only doubt I had about this board was the fan as I sit close to the hifi and was worried about noise so I am pleased that it can be replaced with a passive heatsink. Where did you get it from?

I've noted that some articles about this or very similar boards have a heatsink. Possibly there've been design changes. I've emailed the suppliers to ask about this. Looking at one of the articles (which had a heatsink) it seems it does get a bit hot, so a design with a fan would probably switch on. I did ask whether the fan would be on most of the time, which might not matter so much if it only came on under high loads. I'd be interested to know what you find out.

[AndrewR]

Dave I believe the fan is on all the time and some reports stated that it can induce currents in the output and pollute the 5v line. Also I don't like the idea of something vibrating and causing microphony (although SMDs are less susceptible).

The stock cooling design choice has changed over time. It's now a small silver heatsink with fan attached to the 5v regulator (hence always on). Old designs had the heatsink glued and required a hot-air gun or hairdryer to melt it and safely remove - nowadays it is NOT glued in place and hence much easier to replace.

Andrew

[Ali Tait]

I think its more like I expected too much from them tbh can be quite a picky scroat at times

I've been running them balanced input directly from the modified Buffalo32 dac using its volumite to control the vol, probably the best I've heard them so far.
Could probably try valve buffers , I guess this may just add flavour? ideally I'd just like to try a real good kick arse diy amp, something new but better rather than different

Well as I've said before,this Hlly amp is good on it's own,but is made excellent by using it with my Pre 2.Just MHO though!

I know Dave Hewitt has built a Hypex amp.Have you noticed an improvement with a valve pre Dave?

[leo]

Well as I've said before,this Hlly amp is good on it's own,but is made excellent by using it with my Pre 2.Just MHO though!

I know Dave Hewitt has built a Hypex amp.Have you noticed an improvement with a valve pre Dave?

Thanks Ali, the other option is that valve output stage for the Sabre dac

[Ali Tait]

Yes indeed,I'm thinking about that myself.I heard Nick's,and loved it.

[Ali Tait]

He doesn't have the dac I listened to,but he's gong to put something similar together for Owston,so I'll get a chance to hear it with the Hlly and the Touch.

[dave2010]

He doesn't have the dac I listened to,but he's gong to put something similar together for Owston,so I'll get a chance to hear it with the Hlly and the Touch.

I just had an email about a new version of the Bantam Gold from the people at Temple Audio. Pity they've raised the price a bit, though try to soften the blow by offering a cable as a "freebie"