Anyone try this TA2022 180wpc board?

[drfrink25]

Yuan-Jing TA2022 2 x 180W Audio Power Amplifier Board


I have an old gainclone amp that I don't use anymore, with an overkill transformer that would meet the specs required for this.. it wouldn't be more than 20 minutes to swap stuff out and give it a try.

It would be powering a set of Speedster TMMs, replacing a spare Onkyo SR-707 I've been using (still would use the SR707 as a pre-amp)

 

[Mayday]

I bought one years ago, never got rid of a hum on one channel. Annoying as I'd custom ordered a transformer for it.

 

[AndrewT]

Another advert that lies.
It has an absolute maximum supply voltage of 80V (±40Vdc)
The max power is 60W into 8ohms and 90W into 4r0 dummy resistive load.
It is NOT a 180W+180W amplifier !

 

[poynton]

The board is marked 230w + 230w

It also states into 4ohm but other adverts state NOT to be used with loads lower than 8ohms.


100w BTL should be possible with the right load and supply.

Andy

 

[Mayday]

I actually scavanged my board for parts as myself and others, don't remember what thread/forum now, had problems with hum on one channel. IIRC there was some design flaw. That may have been fixed now though as I got my board years ago.

 

[JMFahey]

Another advert that lies.
It has an absolute maximum supply voltage of 80V (±40Vdc)
The max power is 60W into 8ohms and 90W into 4r0 dummy resistive load.
It is NOT a 180W+180W amplifier !

Not necessarily.

TA2022 is rated 90W RMS per channel, +/- 31V rails, 4 ohms load straight in the Tripath datasheet, so a bridged one can supply 180W RMS into 8 ohms , so only ad error I see is labelling it a 4 ohm capable amp, although they seem to set it straight in ad body, so I wouldn't crucify them just on that.

Since they use two TA2022 per amp, 180+180 W RMS looks quite doable and within ratings.

 

[AndrewT]

2 x 180W Audio Power Amplifier Board

TA2022 delivers 180 watts of continuous power per channel

they are clearly lying !