Rel Sub S3 - with PMC 20.21

Posted by: Richieroo on 28 January 2016

Hi I own a 272 with 250.2 amp running the little PMC 20.21's this sounds great .... I love the mid and the tuneful base. However, I wondered what difference a good sub would make .... well Audio T connected a REL S3 to this setup in their demo room ......... OMG. Huge base.....which was over powering - the sub was on min volume with the x over set to 40hz. It was a shame ....... if the level could have been further adjusted lower it would have been great. The only thing I can think is perhaps the sub room position was not good.

I know other users use the 20.21's with subs ...... any thoughts.

Posted on: 29 January 2016 by Iconoclast
Richard Dane posted:

Iconoclast, Naim amps seem to get upset when the REL sub cabling is connected to the amp terminals. When connected at the speaker end, it's not "seen" by the amp so doesn't get upset (so long as the speaker cabling itself conforms to Naim's recommendations).

Thanks for clearing that up Richard. I have very little understanding of inductance, capacitance, etc.

Posted on: 29 January 2016 by mpw
Richard Dane posted:

MPW and Mariovno,

there are threads on here that you can find with a search where Naim users (including some Nait 5i users) have experienced issues when trying to connect REL subs from the terminals on the Naim amp.  All issues were cured by connecting from the terminals on the speakers.  What's even where no apparent issues were experienced, changing to speaker terminal connection seems to have consistently resulted in better sound.

So..  it's worth repeating that Naim advise against connecting subwoofer high level connections to the amp terminals.  Even REL (back in theRichard Lord days) drew up a special connection advisory and diagram for Naim owners.

Hi ,

I only reported my experience - thats all.

Unfortunately that happens to be contrary to what is the general recommendation here.

If i connect my subwoofer to the speaker binding posts - i am worse off.

My case may be peculiar - but i am curious as to why ?

But for me atleast - it is preferred to take a recommendation - with a stated reason - and not with some vague reason and so i am sorry if i express it so.

Here is wishing the OP the best for his sub-woofer connections..

regards

 

Posted on: 02 February 2016 by Stampie

I use a S5 with PMC Fact 8's and really happy with the sound using the hi level neutrik connections to arcam speaker binding posts.

it took a long time to run in and get the level right, but now I really notice the difference if the sub is switched off