Annoyng problems with Subwoofer and Superuniti

Posted by: Anto68 on 07 March 2016

Hi, I hope that my English is acceptable to all of you.

I encountered a serious problems these days with my SU to which I connected a sub Rel by 4/din-2RCA cable from pre out amp: I heard a annoyng eletrical noise from my speakers at loud volume but at moderate also: lowering the level control from the SUB the noise has disappeared. Then I tried to connect the sub in Hi Level directly to the right Speaker connections and it seems that the problem does not occur.

What' happens with the SU pre/out level? Do you think it possible that the SU pre-out section has serious problems or is it just the electrical incompatibilities between the Lo level circuits of the sub and the SU amp?

The second question: 

Now the Rel is connected in Hi Level with dedicated Rel neutrik cable : red lead to the red speaker input and black to the black: but as many of you know the neutrik REL cable has a third color lead, the yellow that I can not use in this setting. What signal lose in this case?

Thanks for your help

Best

Posted on: 12 March 2016 by Anto68
Huge posted:

 so if you connect to the speaker end of the speaker cables, 

to be more precise I have no joined both cables (speaker and sub): the speaker cable run with banana connector; sub bare wire run separated but in the same speaker imput. (by unscrewing the connector)

is the same i hope......

Posted on: 12 March 2016 by Anto68
ChrisSU posted:

I guess your 'specialist' is not a Naim specialist, 

in fact more than a specialist is a dealer of a most famous Hi Fi shop in Milano: I doubt has in-depth knowledge of naim amp design....

Posted on: 12 March 2016 by David Hendon
Anto68 posted:
Huge posted:

 so if you connect to the speaker end of the speaker cables, 

to be more precise I have no joined both cables (speaker and sub): the speaker cable run with banana connector; sub bare wire run separated but in the same speaker imput. (by unscrewing the connector)

is the same i hope......

Yes it's the same.

best

David

 

Posted on: 12 March 2016 by Anto68

Thank's David.

I apologize for having prolonged the discussion.
We can finish with a wonderful classical music album that I'm listening right now:

The compilation is "Space classical Music" available on Tidal and Spotify 

Trois Gymnopédies: N° 1, Lent et douloureux -Erik Satie, Stèphane Blet

music from heaven