Yamaha AV amp with subwoofer

[heisthegaffer]

Hi all

I have just picked up a BK Gemini II sub to use with my yamaha Rvx2067 amp.

Its connect via the LFE channel but this channel only works when listening to a surround sound program but I want it for straight music too.

Is there a way of forcing the amp to output like this?

[VEX]

Off the top of my head it will be something to do with the audio processing that you have.

You should be able to change the audio 'type' to allow the LFE channel to be included.

Have a poke around and let me know if you need more and I'll check mine! and my contacts.

V.

[Ambleton]

I had this issue on my yamaha amp. You need to check a few things.

One - go into the set up and make sure that in all modes the speaker configuration includes the sub and not just "fronts".

Two - go into the setup and force the front speakers to small. The "large" setting on my amp is for speakers with a bass cone of >180mm so in theory can go to the lower frequencies without a sub.

The thing i did, which removes ALL of these issues and prevents the amp doing any splitting is to remove the sub from all speaker sound profiles and hook it up in a Hi-Level arrangement. This way the sub sees everything that the front speakers get and allow it to negotiate it with it's own on board dedicated crossover.

This (imo) is the best way to do it and once you've set up the crossover point correctly as per the instructions (to the letter) then you will have a better arrangement.

[heisthegaffer]

Thanks all, will have a gander at the settings

[Autopilot]

Have you sorted it?

I have a similar setup (Yamaha AV3030 and a BK Monolith + and had to do a few things to make it work.)

As above, check the amp speaker configurations as having your fronts set to 'Large' will send all frequencies to the fronts. Setting the front speakers to small sets the crossover frequency to 80hz (you can change this if need be) so that the low rumbly stuff gets pointed at the sub.

Have you tried using an RCA cable? If you have one, run it from the Preout (Front) 1 socket on the amp (it has a red socket below it that says subwoofer) to the 'Left' Low Level Unbalanced socket at the Sub end


Failing that, have a look at -

http://www.bkelec.com/HiFi/Sub_Woofers/gemini_manu...
https://uk.yamaha.com/files/download/other_assets/... (Page 20)

I checked your amp and it looks pretty similar to mine, so the speaker config and using the correct output on the Yamaha amp with an RCA should do the trick and start you off. I like to think I know what I'm doing, but it took a few attempts to get any noise out of the sub, I even used the wrong socket on the AV Receiver!!

[heisthegaffer]

Autopilot said:

Have you sorted it?

I have a similar setup (Yamaha AV3030 and a BK Monolith + and had to do a few things to make it work.)

As above, check the amp speaker configurations as having your fronts set to 'Large' will send all frequencies to the fronts. Setting the front speakers to small sets the crossover frequency to 80hz (you can change this if need be) so that the low rumbly stuff gets pointed at the sub.

Have you tried using an RCA cable? If you have one, run it from the Preout (Front) 1 socket on the amp (it has a red socket below it that says subwoofer) to the 'Left' Low Level Unbalanced socket at the Sub end


Failing that, have a look at -

http://www.bkelec.com/HiFi/Sub_Woofers/gemini_manu...
https://uk.yamaha.com/files/download/other_assets/... (Page 20)

I checked your amp and it looks pretty similar to mine, so the speaker config and using the correct output on the Yamaha amp with an RCA should do the trick and start you off. I like to think I know what I'm doing, but it took a few attempts to get any noise out of the sub, I even used the wrong socket on the AV Receiver!!

Hi mate

Yes, I changed the setting to small speakers and the subwoofer works in all settings except pure direct annoyingly.

I always thought that these amps would include sub out on PD which older amps (like my old 750SE) didn't.

Thanks for your help, really appreciate it.

Very happy with the set up and looking forward to watching The Pacific at some point with this cracking little sub.

[heisthegaffer]

Another quick question, I've set the speaker crossover to 80hz so do I set the sub to 80hz too or have it slightly lower/higher?

[Mike Hammer]

The RX-V 85 series AV receivers are also capable of supporting wired surround speakers for those who prefer a traditional setup