Hypex FA501 highest crossover point

[cbarth]

Anybody knows what the highest recomended crossover point would be for this amp using the high level inputs?

It states that it can be used as an subwoofer amp using the high level inputs. But could it be used up to 400 - 500hz?

 

[shattered_dream]

Yeah should be possible...

 

[YSDR]

You can use whatever xo frequency you want in the human hearing range with this amp. It's not limited to subbass.

 

[cbarth]

Was thinking of using it to power the bass in a 3 way system, fed from an integrated amp that doesn't have any pre output.

 

[john61ct]

You can use whatever xo frequency you want in the human hearing range with this amp. It's not limited to subbass.

So could be adapted to drive say an LS50 directly?

 

[YSDR]

Yes, this is a fullrange amp, but can be used as a subwoofer amp too. If you don't need high level input, you can have a 2 or 3 way from these, but don't forget that for a stereo pair of speakers you need 2 plateamps.

For example, with 2 pieces of 2 way amps, you can drive and crossover a passive (or fullrange) speaker and 2 subwoofer or actively crossover 2 pieces of 2 way speakers.

 

[YSDR]

Was thinking of using it to power the bass in a 3 way system, fed from an integrated amp that doesn't have any pre output.

The FA501 is perfect for that. Moreover, you can elminate the passive crossover from the bass section and set the crossover digitally via FA501 and apply some room EQ in the bass range if you want.

 

[john61ct]

Yes, this is a fullrange amp, but can be used as a subwoofer amp too. If you don't need high level input, you can have a 2 or 3 way from these, but don't forget that for a stereo pair of speakers you need 2 plateamps.



For example, with 2 pieces of 2 way amps, you can drive and crossover a passive (or fullrange) speaker and 2 subwoofer or actively crossover 2 pieces of 2 way speakers.

Sorry, I do not understand "2 way amps" in this context. Each FA501 is a single monolithic amp per channel right?

Yes one needed per LS50, but without any other speakers, there's no need for any crossover right?

If I added another FA501 to drive a sub in future, then how would the crossover / mono best be handled?

I have a Samson S-xover that could do it, but I figure not needed?

 

[YSDR]

Okay, this thread is about the FA501. 2 way or 3 way I meant FA502 and FA503 for example, but these don't have the speaker level input like the 1 way models.

Btw, for the LS50, the FA501 is overkill in every way. The smaller, cheaper, quieter FA251 is more than enough.

 

[john61ct]

Yes I want overkill in the amp so I have flexibility if (when) the use case needs more power

say outdoor events rather than inside.

If you know the answers to my questions I'd greatly appreciate the help.

 

[YSDR]

I mean overkill in a way that you can easily burn down your LS50 with that amp. Anyway there is a software limiter that you can set for the FA.

 

[john61ct]

Yes I know that is what you meant, and obviously I would take the necessary precautions, thanks for pointing out that feature.

If anyone can help with the below, much appreciated

Yes one plate amp needed per LS50, but without any other speakers, there's no need for any crossover right?

If I added another FA501 to drive a sub in future, then how would the crossover / mono best be handled?

I have a Samson S-xover that could do it, but I figure not needed?