How connect single subwoofer with 2 monoblocks

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mix4fix

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Re: How connect single subwoofer with 2 monoblocks
« Reply #40 on: 14 Apr 2020, 07:04 pm »
Maybe they had limited staff and no tech when this REL person gave a bad answer in the reply.  :dunno:

Bad advise is still bad advice. Are they going to fix your pre-amp if it gets damaged?

mix4fix

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Re: How connect single subwoofer with 2 monoblocks
« Reply #41 on: 14 Apr 2020, 07:08 pm »
http://www.faqs.org/faqs/car-audio/part4/

I always refer to this whenever the discussion of combining RCA signals comes up. It's car audio, but it's the same principal. As long as you have that 1/4 watt resister on the center pins, everything is good. I built and still have a summing circuit I built long time ago. I used a radio Shack project box, multi-RCA panel, resisters, and some wire. I had it set up where the two middle pairs were stereo and the two outer pairs were summed. It's weird but I can never miss-connect anything. Stereo in, stereo out, and four mono connections. Plus, I don't like destroying functional RCA cables.

The DIY crowd I know said use 10K ohm resistance or more. There was also a mention of using OP-amps.

https://www.electronics-notes.com/articles/analogue_circuits/operational-amplifier-op-amp/virtual-earth-mixer-summing-amplifier.php

hilde45

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Re: How connect single subwoofer with 2 monoblocks
« Reply #42 on: 14 Apr 2020, 07:48 pm »
REL followed up, both with a clarification and the willingness to reach out to my amp manufacturer. And with the offer to talk on the phone, and a phone number.

I think they've been impressive every time I've dealt with them and this is one-off -- and they're sticking it out to make it right.

And also: I bought their product used and still, they're helping.

Full confidence in REL.

opnly bafld

Re: How connect single subwoofer with 2 monoblocks
« Reply #43 on: 14 Apr 2020, 08:12 pm »
REL followed up, both with a clarification and the willingness to reach out to my amp manufacturer. And with the offer to talk on the phone, and a phone number.

I think they've been impressive every time I've dealt with them and this is one-off -- and they're sticking it out to make it right.

And also: I bought their product used and still, they're helping.

Full confidence in REL.

 8)

Letitroll98

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Re: How connect single subwoofer with 2 monoblocks
« Reply #44 on: 14 Apr 2020, 09:47 pm »
Excellent.