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Denon 2807 bi-amp question?? - Page 2

post #31 of 45
Quote:
Originally Posted by Kal Rubinson View Post

And, of course, you are using a mono signal with both speakers at the same spot in the room.

No, I'm just listening to music right now and doing L/R switching at the receiver. Not very scientific, just a subjective test to see if I can tell a difference. For my next test I'll hook up one speaker only and run different frequencies through it and measure with my SPL meter to try to graph the frequency response. I'll do this once with the jumper on and once with it off to see if the graphs look any different (on the same speaker in the same position).
post #32 of 45
Quote:
Originally Posted by redline65 View Post

No, I'm just listening to music right now and doing L/R switching at the receiver. Not very scientific, just a subjective test to see if I can tell a difference. For my next test I'll hook up one speaker only and run different frequencies through it and measure with my SPL meter to try to graph the frequency response. I'll do this once with the jumper on and once with it off to see if the graphs look any different (on the same speaker in the same position).

OK. With the speakers in their appropriate positions, most will sound different running off the same signal through the same electronic path simply because of room acoustics (even with EQ).
post #33 of 45
If you guys want to see some interesting posts about bi-amping go to the speakers forum section and find the one called bi-amping. At times it got pretty heated and comical. Some of us know there is a benefit, albeit small. Others aren't ready to admit it yet. Basically if you have an extra IDENTICAL amp it will provide a small benefit. Likewise if you have unused channels in a 7 channel receiver do it, provided your receiver has a "redirect" or bi-amp function built in. Your only cost is the additional speaker cable, which many already own if you have your speakers bi-wired. Someone above posted to use the pre-amp outputs from the L and R front channels and send the signals to the inputs of the unused channels. I know you guys are talking about Denon here, and I'm not familiar with them, but on my Rotel when I activate the discrete 7.1 channel input no other input can be used. Its like switching sources.
post #34 of 45
Quote:
Originally Posted by whoaru99 View Post

From my experience, the outlay for a separate amp is not worthwhile if merely buying for the purpose of bi-amping.

Now if you are significantly increasing power by adding a more powerful outboard amp, that's all together different. Just in case you didn't know, bi-amping with 2x 100 watt amps (merely for example) is not putting 200 watts to the speakers - not even close to the same thing.

The first part of your post is mostly true.
The second part about doubling the power...untrue.
Go to this sitehttp://www.audioasylum.com/audio/gen...ges/57210.html
post #35 of 45
Quote:
Originally Posted by Nuthed View Post

The first part of your post is mostly true.
The second part about doubling the power...untrue.
Go to this sitehttp://www.audioasylum.com/audio/gen...ges/57210.html

Please copy and paste the reference you wish for me to see. I scanned it quickly and didn't see anthing that caught my eye in regard to 100w bi-amping being the same, or even similar, to 200w conventional.
post #36 of 45
Redline65; So how well does the LP1 drive your studio 60's...even straight-wired? I'm in need for an amp for my studio 60/20/CC setup and am trying to figure out if the LP1 at 125W is enough.

Thanks!
post #37 of 45
Quote:
Originally Posted by vermonter View Post

Redline65; So how well does the LP1 drive your studio 60's...even straight-wired? I'm in need for an amp for my studio 60/20/CC setup and am trying to figure out if the LP1 at 125W is enough.

Thanks!

I've only had it hooked up for a couple of days, but so far I'm very pleased with it. The actual sound quality doesn't seem any different than when I was driving my speakers with my Denon AVR-985S. IMO that is a good thing that the amp doesn't change the sound.

I have noticed that now I don't need to turn the volume up as loud as before. This may just be due to the gain of the amp though. When I calibrated my speakers after hooking up the amp I had to bring the levels down a few dBs too.

My primary reason for buying the amp was because I had to have a tweeter replaced in one of my Studio 60s. I'm fairly certain I was pushing the Denon too hard, so hopefully I won't have this problem again with the LPA-1. I'd suggest just buying it to see what you think. Shipping is free and if you don't like it you can return it for a refund within 30 days.
post #38 of 45
Quote:
Originally Posted by Nick250 View Post

Passive bi-amping is a sideways thing. It neither helps, nor does it harm sound quality or the receiver. Feel free to experiment with it.

Nck

Thanks.
post #39 of 45
I still don't get this whole bi-amp thing. I have my 2807 hooked up to 2 speakers, a front R and front L. I listen to everything in Pure Direct mode, as I don't want anything coloring my sound. What should I have my power amp settings to? S. Back, Front A, Front B, or Zone 2? I switched between them while listening to music, and I think it sounded a little better in Front A, but the default is S. Back. I'd just like to be sure I'm not doing anything to hurt the sound.
post #40 of 45
If your speakers have a second set of speaker posts then to use the "bi-amp" mode (ie. Amp Assign set to "Front A, Front B", you would also need to connect another set of speaker wire cables from the "Front B" speaker posts to the 2nd set of posts on your FL/FR speakers (after removing the jumper between the two sets of speaker posts). Note however, that using PURE DIRECT disables the Audyssey auto EQ.
post #41 of 45
I don't have bi-amp capable speakers. I have Definitive StudioMonitor 450's. Is being in Front A mode w/o bi-capable speakers bad for either the speakers or the receiver? What mode should I be in?
post #42 of 45
it's not bad at all. many of us think bi-amping is a waste of time and effort.

Enjoy your Def Techs.
post #43 of 45
Then the bi-amp mode is of no concern to you and with only 2 speakers in your setup, it doesn't matter what Amp Assign is set to as that setting only applies to either the Surr Back or Front B speaker posts. Your speakers are correctly connected to the Front A speakers.
post #44 of 45
Great! Thanks a lot guys. I thought I could hear a difference between s. back and front a, but it was probablyl all in my head, lol. It's good to know I'm not doing anything to hurt the sound or equipment.
post #45 of 45
Nope. The same signal that is passed to the Front A posts is also passed to the Front B posts.
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