Hi
I was wondering what others are doing as a sequence to arrange their subs, running REW as an aid.
I have two home made sealed subwoofers with 10" drivers. Both subs are 4 ohm ran by one channel of an older Yamaha natural sound amp which rating is 115WPC.
Impedence on the amp is for 8 ohm so I am running both subs wired in series. I did a Db comparison with them in series, and output of the two are close.
I assume the drivers are underpowered, but I've been using this arrangement for years without any apparent problems that I'm aware of.
The only EQ I have for the two subs is (a) Bass control on my Onkyo (B) The 60 and 150hz slider EQ controls on the Yamaha driver amp. There is no crossover for the drivers: just straight to the amp.
My HT is approx 20x22x8.
Here is what I've recently done:
1. Installed/setup/read help for REW.
2. Disconnect my main L&R speakers
3. Connect only one sub
4. Moved my listening position 38% off the rear wall (Just over 8')
5. Set bass control on my Onkyo to the half way click, 60hz slider on my Yamaha to zero and 150 control about half way down. "Loudness" control about half.
5. Run REW using that one sub while placing it into various places around the room.
After a couple hours of testing, found two places that gave the best result.
I like to run two subs on opposite sides of the room for a more balanced effect so I connected my 2nd sub.
3 huge nulls appeared. I had a few hours more fun with trial and error placement testing with REW.
I removed my mains L&R speakers from off the front wall, placed them in an equalateral arc to the listening position, about a foot off the floor so the tweeters are about ear height.
I reconnected the mains L&R again, so now I'm testing them along with two subs.
Sure enough I'm getting more response problems and have spent an hour or so trying the subs in different areas before shutting down for the night..
Am I creating more work for myself than neccessary?
Is this the proper way?
I'm really new to this and wouldn't know the difference.
The wife says it all sounds fine and doesn't understand all the maticulous testing.
I do think my room suffers the "One note bass" effect and want it perform the best possible.
Thanks
-Steve