BTL Mode For Hypex NC Amps Quick Question

[Trdat]

I just have to get this concept off my chest so apologize if its a really weird one.

Can I BTL from two different powered Hypex amps? Meaning if I have a NC502MP and NC252MP and in order to get stereo I would use the plus from the NC252 and the plus from the NC502 for one channel and for the second I would do the same with the other plus from each respective amp.

 

[pma]

Meaurements of Hypex NC252MP in bridge-tied load (BTL)

Following the discussion in the NCx500 review thread, I was curious how my PMA-NC252MP amplifier based on NC252MP module would perform in a bridged configuration. Original Hypex datasheet allows for this configuration, as we can see in the following part from the datasheet: It declares...

www.audiosciencereview.com

 

[Trdat]

Meaurements of Hypex NC252MP in bridge-tied load (BTL)

Following the discussion in the NCx500 review thread, I was curious how my PMA-NC252MP amplifier based on NC252MP module would perform in a bridged configuration. Original Hypex datasheet allows for this configuration, as we can see in the following part from the datasheet: It declares...

www.audiosciencereview.com

I just read that, plus I have been reading your website but it doesnt answer the question if two different powered amps pluses can be used to bridge load?

 

[AnalogSteph]

I wouldn't do it. Better use the 502 for one channel and the 252 for the other. It's not like your proposed config would go any louder or anything.

 

[restorer-john]

I wouldn't do it.

This.

Gains have to precisely matched as do all other aspects of the amplifiers. And you'd be playing all sorts of games with the cold (-) returns, as Hypex use both hot and cold signal line feedback.

Bridge the NC-252mp by all means, but not disimilar amps.

 

[Trdat]

I wouldn't do it. Better use the 502 for one channel and the 252 for the other. It's not like your proposed config would go any louder or anything.

Thanks. Just needed to know.

Thats not a bad idea to use 502 for one channel and the 252 for the other but then wouldn't the input sensitivity be an issue and each reach a different loudness at different stage?

 

[Trdat]

This.

Gains have to precisely matched as do all other aspects of the amplifiers. And you'd be playing all sorts of games with the cold (-) returns, as Hypex use both hot and cold signal line feedback.

Bridge the NC-252mp by all means, but not disimilar amps.

Great, thanks.