Balanced DIY Pass Amps

[rikiheck]

Hi, all,
I've built a few pre-amps and headphone amps now and think I am ready to try a power amp. BUT...I need something with balanced inputs (due to the noisy environment in which I live and the long cables, 50 ft, between pre and power). I'd prefer something Pass. Suggestions?
TIA,
Riki

 

[TungstenAudio]

Aleph J
Really one of the finest amps available

 

[rikiheck]

Thanks for that suggestion. I owned an Aleph 3, but I think that only had RCAs. So I didn't think of the Aleph J.

 

[Peppe]

I think the 3 is the only Aleph with only RCA input

 

[AudioSan]

Aleph 30 is a balanced version of the Aleph 3.

 

[ozorfis]

I really do like my BA-3B monoblocks. If you choose to build those, take Toshiba mosfets on the front end.

Cheerio

 

[adason]

Hi, all,
I've built a few pre-amps and headphone amps now and think I am ready to try a power amp. BUT...I need something with balanced inputs (due to the noisy environment in which I live and the long cables, 50 ft, between pre and power). I'd prefer something Pass. Suggestions?
TIA,
Riki

Aleph J, your best option. Board and all the parts are available.

F1/F1J, but the semis are not available, board available from csample (Chas).

 

[rikiheck]

Thanks for all these suggestions.

 

[rikiheck]

I really do like my BA-3B monoblocks. If you choose to build those, take Toshiba mosfets on the front end.

Is there a thread for that? What boards would I need?

 

[Bones13]

You can build the ACA amps balanced.

 

[ItsAllInMyHead]

Is there a thread for that? What boards would I need?

Burning Amp BA-3b (Balanced)

That along with this thread provided the vast majority of the information.

BA-3 Amplifier illustrated build guide

2 Front End Boards
4 Output stage boards (minimum)
4 Bias boards

 

[rikiheck]

Thanks again for that. It might be good for my to try something simpler to start, like the Aleph J.