DIY|Anyone build Class-T amps?

[keith_correa]

Check these out:

• 
  41Hz audio amp kits. Sounds good to me! Tripath based amplifiers for DIY:ers. especially the "Truepath"

• 
  diyparadise - What I sell... - this guy names his products after pretty ladies. Nice! Uh, the products too. See reviews @:
  6moons audio reviews: DIY Paradise Monica, Maggie & Charlize
  DiyParadise Monica3 NOS DAC - [English]
  Monica2 DAC review - [English]

• 
  AudioDigit.com - Class T Amp audiophile amplifiers - also see Autocostruire il negozio degli autocostruttori

There are some dated reviews out there too:
Class-T amp review

Check out the prices. These prices are peanuts!! Makes me wonder where our money goes when you buy the so called "high-end" packaged products as compared to these. Of course the assumption I'm making is that these DIY boards are as good/better than packaged products.
Has anyone actually built these? If yes - sharing experiences with these would be much appreciated.

 

[jai1611]

There are multiple versions of the T-Amp chip. The original is a TA2024 - rated at 15W at 4ohms (optimistically I think). There is also a 20w TA2020 and a TA2022 which is rated at a more conventional 90W at 4 ohms.

I recently picked up a TA2024 based amp. It works quite well in a small room with a pair of 89db sensitivity, easy to drive (light crossover) towers. This little amp seems to have a tremendous soundstage. Quite impressive really. I'll be trying it out with a pair of DIY bookshelves using the Fostex FE167E that I knocked together soon. I also have a miniwatt SET amp handy (not burned in yet though). Lets see how they compare.

 

[keith_correa]

Hi Jai:

Which TA2024 based amp did you buy? Which is the easy to drive towers that you tried it with?

 

[jai1611]

I picked up the T-amp through a Chennai based seller on ebay India

tried it with a pair of Yamaha NS-8390 towers in a 160 sq ft room. the same towers can also be driven by the miniwatt (albeit at somewhat anemic volumes at 12 o clock)