How do I cable my sub?

Firegod

Firegod

Firegod

Soldato
Joined
12 Sep 2003
Posts
10,516
Location
Newcastle, UK
Hey all, silly question but I'm getting my new sub delivered on Monday and I just wanted to check that I'll be cabling it correctly. REL say if the sub has stereo RCA low level inputs then connect those to the left and right low level outputs on the Amp. I've been using (with my old sub) the Left/Right Line Out connectors. I have no idea if that is/was correct? The REL HT/1003 has stereo low level inputs - like my old sub. Am I OK to continue to use the Line Out Left/Right outputs? REL say that to use the Subwoofer Pre-Out on the Amp if the REL sub only has a single low level input. Which the HT/1003 does not.

Back of my Amp currently:

Amp-Rear.jpg


Excerpts from the Pioneer SX-N30 instruction manual below. It doesn't state to use Line Out for a subwoofer, just a recording device. So am I OK in using Left/Right Line Out or should I use the one marked for the Subwoofer on the Amp? And therefore, what do I do about the REL sub which has Left/Right low level inputs and not a single. I just don't want to damage it by hooking it up wrong.

Amp-Connections.jpg

Amp-Info.jpg

Amp-Output.jpg


Thanks.
 
Cool. I guess I'll just pick left or right in sub, and see what happens. I don't think either are labelled as mono... but I'll see on Monday. Probs try left first. Seems to be the most common when looking on Google.
 
Yeah it is suspended floor. I'll try and grab a cheap granite chopping board. Interestingly just read this on a forums (this sub is connected to a stereo amp not an av receiver) :


"IF you have a 2-channel setup, i.e. a "stereo", Then you would typically want to use 2 RCA--RCA wires from the preamp outs to both the sub inputs; then you have the stereo summing taking place inside the sub which gives you mono bass while preserving the stereo signal separation going into the main amps."

But I don't have preamp outs. Just line outs. Stick with subwoofer pre out?
 
Thanks both. Appreciate all the help.

Yeah last time I had to set the crossover and level on the old sub to blend. The stereo amp doesn't have anything to alter that. So it's a case of just using my ears. I know the Bowers and Wilkins have a response range down to 33hz so I was gonna aim for 40hz on the sub and see how that feels as a starter.

I have my burn in tracks selected up in Spotify ready to go as well. Some 90s hip hop with good low repetitive bass lines. :)

@lucid yeah the REL video I watched for cabling was useless. It didn't cover what to do if using a single sub pre out to a REL sub with stereo low level inputs. Didn't cover it. Lol.
 
Aye you are right sorry I gave the wrong figure earlier. 33 wasn't the Hz that was the kHz value. I was at the wrong end of he scale lol.

-6dB at 40Hz and 33kHz

I'll go for 50Hz first as you say.
 
Woop. It turned up today. :D

Love it. Just following the break in procedure for it, and it's sounding real good so far. So I moved the RCA to sub out as discussed. The sub does have an RCA input labelled for LFE so I plonked it into that. Opened up the Crossover all the way so the sub is playing the full range. Ran it gentle for first 15 mintues now it is just past half way and I'll keep it like that for a few hours. Might crank it to 3/4.

Thanks for all the help!

Amp-Rear.jpg


REL-Rear.jpg


REL-Front2.jpg


REL-Front.jpg
 
hornetstinger said:
Since that is a stereo amp you want to dial the Sub crossover clockwise -40-60hz
LFE is if you have a AVR, which you don't.
Click to expand...
Yeah it's dialled in now at @50Hz. When it was all the way around to LFE that was just to allow the sub to playback all freq range (LFE as you say didn't do anything). The REL break-in procedure says to open it up if you want past the 12 o'clock position. I could have just left it at 100Hz (12 o'clock) whilst running it in. But it is now set correctly and sounds really good compared to the old muddy 309i. :)
 
You must log in or register to reply here.
Back
Top Bottom