Thanks Al - Guess I have been lucky
wyred 500st mk11 and rel sub r528
Have been trying to get an answer on how to connect the speakeron to my amp and what is safe. The Rel support said to use the Red to left + and Yellow to right + speaker on the amp and don't connect the Black wire, instead use the 1.lfe cable from the sub to my Oppo 105 as the ground. Wyred support said that you could only use the standard low level input which kind of defeats the hole purpose I had in getting the Rel. Has anyone else had this problem.
Showing 4 responses by xti16
Connecting the red and yellow wires to the amps positive speaker posts is a high level input for the Rel. Not sure why they suggested using the lfe for ground. I have heard of problems with differential amps and/or class d. I had no problem with my Bryston B100 (uses differential amps) and my Aavik U300 (class d) and connecting the black wire to either negative speaker post. But I also have a Rel B3. |
I would strongly recommend that you do NOT make the common mistake, in the case of amps having balanced or bridged outputs, of connecting the black wire to a negative output terminal of the amp. Depending on the internal grounding configuration of both the amp and the sub, that creates at least a slight possibility of damaging the amp. And even if doing that appears to work satisfactorily, as in Xti16's case, it is not ideal from a sonic standpoint if only one sub is being used. What would happen in that situation is that instead of the input circuit of the sub simply summing the signals for the two channels together, it would give approximately 10 db more emphasis to the channel to which the black wire is connected than to the other channel, according to my calculations.I moved the black wire to the chassis ground on the Avvik U300 and heard no difference. I'll leave it there since connecting to the speaker binding post may cause a problem. |
I moved the black wire to the chassis ground on the Avvik U300 and heard no difference. I'll leave it there since connecting to the speaker binding post may cause a problemAl - My Bad. I heard no difference because the tracks I played at the time had no extended lows in the music. After playing around with some tracks known with deep lows I found the Rel B3 wasn't doing anything. So in MY case I returned the black wire to the speaker output post. Here is a link to the U300 specs. Not sure what the virtual ground is. http://www.aavik-acoustics.com/u-300.html |