Connecting sub to amp

[satans worm]

HI

Haveing fitted my shiny new plasma to my wall at the weekend I have dusted off my old Denon3801amp and KEF 2005.1 speakers (been in storage for 3 years!) and attempted to set it up without instructions (lost along time ago). Thing is everything works fine except the amp.
From memory I thought it was just a case of fitting power to the amp then linking the sub to the amp via a single phono cable pluged in the 'sub woofer pre out' socket on the amp and into the left (or right I tried both) 'line in' on the sub box, but nothing happens with the sub when turned on.
Any one got any ideas if this is correct, and if so how I can test its the sub or amp that is at fault?
Any help appreciated

[GlenMH]

Have a shufti at the KEF website to see if you can download some instructions for the speakers.

Has the amp got a setting to tell it whether there is a sub connected? And the relevant frequency filter set?

[Zod]

You have it right: I have a Denon 3802 with the KEFs in the bedroom - one phono cable from the subwoofer out to the L or R input of the sub. Ignore the binding posts on the sub.

[satans worm]

I have just looked at the online manual for the amp, 72 pages!
Looks like I need to set it up more for it to read the amp, not just plug and play as I had hoped!
Thanks

[Hereward]

Have you set up the amp correctly (set all speakers to "small" and crossover to 50hz)?

[satans worm]

No, I did originaly when i bought it but its been in storage for a few years now so i guess all the settings gone back to factory standard.
I cant seem to get the on screen display working to make the necessary adjustments, other than pressing the OSD button and having the TV on, is their another step?
Think i will see if I can download the Denon instruction manual fron the net, very frustrating

[dalos260]

satans worm said:

I thought it was just a case of fitting power to the amp then linking the sub to the amp via a single phono cable pluged in the 'sub woofer pre out' socket on the amp and into the left (or right I tried both) 'line in' on the sub box,

Just power to the amp? You have plugged the sub into the mains too, haven't you?

Sorry if it's a stupid question, it's just how I read your description.

[satans worm]

Well the sub still isnt working (yep pluged into mains )I've downloaded the instructions and played with the settings but the sub is not producing anything, although the power light does go from red to green on the amp.
I also cant get the optical in to work either, beeing forced to use phono left and right instead.
getting the feeling the amp may of given up the ghost, does anyone have recomendations on a replacement to the denon3801? I'm no audiofile, just need enough power for the Kef eggs to fill the room (a vaulted ceiling 6mX6m room).
budget, 3-500GBP?
Or do people think it is fixable?

[koenig999]

If you have tried everythin, like enabling Sub ib etc, is may be a faulty sub.

My KEF 2005 sub has blown up twice.

KEF still repair them for £140 a go ish, although they are cutting a deal on a new one to gradually clear out the stock of the ones to go bad

Koenig