AudioCircle

Industry Circles => GR Research => Topic started by: topx on 28 Nov 2017, 08:24 pm

Title: XLR LFE Input with Active Crossover vs using built in low pass filter
Post by: topx on 28 Nov 2017, 08:24 pm

Hello,

I am finding it difficult to sift through the information on the various options for the amp.  Has someone tested using the LFE (which according to one piece I read has a wider ranger?) vs filtering at the sub?

Thanks

Title: Re: XLR LFE Input with Active Crossover vs using built in low pass filter
Post by: HAL on 28 Nov 2017, 08:43 pm

I do that with my HX800XLR3 servo amps using the XLR inputs and external DSP crossover to my main speakers.  Works great. 

Title: Re: XLR LFE Input with Active Crossover vs using built in low pass filter
Post by: topx on 28 Nov 2017, 08:46 pm

thanks for responding!

To clarify you do preamp -> sub -> dsp -> main speakers or

preamp -> dsp -> sub
                         -> main speakers

 

Title: Re: XLR LFE Input with Active Crossover vs using built in low pass filter
Post by: HAL on 28 Nov 2017, 08:54 pm

Music server -> DSP Crossover -> Subs
Analog Source->                      -> Amps

Mine is a tri-amp setup with all balanced connections.  The DSP crossover takes all inputs and drives all outputs.  I have delay running between the mains and subs for time alignment.

Title: Re: XLR LFE Input with Active Crossover vs using built in low pass filter
Post by: Danny Richie on 28 Nov 2017, 09:22 pm

Rich's (HAL) setup is fairly unique. It is the only DSP crossover system out there that is truly a high end piece of gear.

Outside of Rich's set up I would try to keep that type of product out of the signal path and just send a full range signal to the servo amp and use the controls there to handle everything.