bi amping Denon 3805

jayman_1975
jayman_1975 Posts: 672
edited March 2006 in Electronics
has anyone tried this...and if so how does it work?
http://www.audioholics.com/productreviews/avhardware/Denon-AVR3805_review04.php
Onkyo TX NR 5008 modified by The Upgrade Company
Oppo BDP 93 modified by The Upgrade Company
Arcam CD37
Monitor Audio Gold GS 60
Revolver Audio Music 5 towers.(surround)
Vandersteen V2W
Post edited by jayman_1975 on
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  • unc2701
    unc2701 Posts: 3,587
    edited March 2006
    Passive biamping has debatable benefit and even moreso when the two amps are using the same power supply. That said, knock youself out, it's worth a shot.
    Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19
    Gallo Ref AV, Frankengallo Ref 3, LC60i : Bryston 9b SST : Meridian 565
    Jordan JX92s : MF X-T100 : Xray v8
    Backburner:Krell KAV-300i
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited March 2006
    In theory, you gain 3 db with the double power, in reality, when the bass amp runs out the mid/high does too since they are tied together.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • RoosterD
    RoosterD Posts: 36
    edited March 2006
    I've done it on my 3805 with the LSi15s. I noticed that the bass was more defined. I'm no audiofile, (I should say that first) but I felt the 8" subs were a little muted, and the highs weren't as forward?without bi-amping. Maybe I'm not using the correct lingo, but the lows/highs were more responsive with it. I didn't notice much of a difference in the midrange.
    I owned the 3805 and the LSi15s for 6months before reading about this. It's a pretty simple procedure, I'd be interested in what you find. :)
    Denon 3805S
    Denon 3910S
    Polk LSi 15's
    Polk LSi F/X's
    Polk LSi C
    Boston Pro 10" DIY Sub
    Samsung 5678W DLP 1080P
    PS3
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  • FicmanS
    FicmanS Posts: 134
    edited March 2006
    I've got my 3806 biamp'd, slight difference in my rig. Worth the effort I would say...
    Rockin' In My House :D


    Pioneer 50 inch Plasma TV
    Denon AVR-3806
    Denon DVD-1930ci
    Polk Montor 70's
    Polk PSW-12
    Polk CS2
    Polk Monitor 40's
    Sirius Satellite Radio, Monster 3500MKII
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  • jayman_1975
    jayman_1975 Posts: 672
    edited March 2006
    cool...i'm gonna give it a try..let u guys know how it turns out.
    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
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  • jayman_1975
    jayman_1975 Posts: 672
    edited March 2006
    one more question ...is there anything other than removing the connector between the speaker terminals that i have to do to my M 70's in order to bi amp them?
    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
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  • FicmanS
    FicmanS Posts: 134
    edited March 2006
    Nope that's all I did, I just loosened them up and moved them out of the way. That way I would not misplace them...
    Rockin' In My House :D


    Pioneer 50 inch Plasma TV
    Denon AVR-3806
    Denon DVD-1930ci
    Polk Montor 70's
    Polk PSW-12
    Polk CS2
    Polk Monitor 40's
    Sirius Satellite Radio, Monster 3500MKII
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  • jayman_1975
    jayman_1975 Posts: 672
    edited March 2006
    ok..one other question before i go to all the trouble...i can see the advantage of this when playing music in 2 channel but what happens to the H/T aspect...more power to just 2 speakers..wouldn't that make it a little irregular when watching in 5.1?
    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited March 2006
    jayman_1975 wrote:
    ok..one other question before i go to all the trouble...i can see the advantage of this when playing music in 2 channel but what happens to the H/T aspect...more power to just 2 speakers..wouldn't that make it a little irregular when watching in 5.1?

    Once calibrated for the load change, you shouldn't see any difference when changing volume levels.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • Toxis
    Toxis Posts: 5,116
    edited March 2006
    the 3806 is capable of doing this via the menu. The 3805 you have to completely rig like they showed on that site. If that's a feature you want, sell your 05 and move to an 06. Done.
    Never kick a fresh **** on a hot day.

    Home Setup: Sony VPL-VW85 Projo, 92" Stewart Firehawk, Pioneer Elite SC-65, PS3, RTi12 fronts, CSi5, FXi6 rears, RTi6 surround backs, RTi4 height, MFW-15 Subwoofer.

    Car Setup: OEM Radio, RF 360.2v2, Polk SR6500 quad amped off 4 Xtant 1.1 100w mono amps, Xtant 6.1 to run an eD 13av.2, all Stinger wiring and Raammat deadener.
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  • jayman_1975
    jayman_1975 Posts: 672
    edited March 2006
    i just bought my 05..and would probably lose half of what i paid a week ago to sell it...i've decided that i like the way it sounds just normal, i can crank the heck out of my monitors and they sound awesome so i'll just leave it at that. Besides, my room is not big enough to need a bunch of extra power(16*13)
    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
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  • jayman_1975
    jayman_1975 Posts: 672
    edited March 2006
    well i decided to give it a whirl...i think that it sounds pretty good...much more base...and stronger highs...i think if i didn't have a sub i wouldn't miss it now. I would definitely reccomend it as long as you don't plan on using surround rear speakers.
    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
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  • Disc Jockey
    Disc Jockey Posts: 1,013
    edited March 2006
    I've done this with mine and definately noticed an improvement in sq. One thing to be aware of, some units you need to reverse the l/r inputs for SURR BACK / MULTI ZONE. I had mine hooked up correctly and heard things go L =>R while I saw things go R=>L. Turns out it's not an isolated issue.

    DJ
    "The secret of happiness is freedom. The secret of freedom is courage." Thucydides
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