High Pass filters

Mike D · « **on:** 21 Nov 2005, 04:30 pm »

Has anyone used the ACI high pass filters in an audiophile system?

Rich Carlson · « **Reply #1 on:** 22 Nov 2005, 12:20 am »

Yes, though I suppose that depends on what you mean by "audiophile system" - I've used them in a Theta/Benchmark/Bryston system and some variations on that. Small loss of level, but otherwise completely transparent as far as I can tell.

Harry P · « **Reply #2 on:** 22 Nov 2005, 12:25 am »

i've used them in several diferent setups. They do a great job of taking some of the strain off the main speakers while doing no harm other than a bit of level loss as Rich mentioned.

Mike D · « **Reply #3 on:** 22 Nov 2005, 01:29 pm »

By level loss, do yo also mean a loss of dynamics or can I just turn the preamp up to compensate?

Rich Carlson · « **Reply #4 on:** 23 Nov 2005, 11:09 am »

Just turn the pre up a little - no loss of dynamics that I can hear.

EProvenzano · « **Reply #5 on:** 28 Nov 2005, 09:03 pm »

Can these be custom made with 12db/octave filters?
Is it advisable to insert these between the source and integrated amp?
Thanks

Harry P · « **Reply #6 on:** 1 Dec 2005, 12:42 am »

Quote from: EProvenzano

Can these be custom made with 12db/octave filters?
Is it advisable to insert these between the source and integrated amp?
Thanks

I would think that normally they'd go between preamp and amp. If you put it between the source and integrated amp you'd lose all your bass!

Eric · « **Reply #7 on:** 1 Dec 2005, 09:30 pm »

I used them in the following system several years ago

ACI Jaguar / Titans
Audio Valve Challengers Amps
Kora Eclipse Preamp
Metronome CPD

I noticed no loss of dynamics. They did their job without hurting the sound