pro audio / DJ amps in home systems??

peffy03
peffy03 Posts: 50
edited December 2007 in Electronics
I was contemplating today, the possibility of integrating a pro audio amplifier into my hts. My setup consists of an onkyo sr604 that i have biamped on a pair of rti10s my rears are monitor 30s and my sub is a polk psw10 my center, is an older yamaha. what im thinking is that i can get a smaller crown or peavey say 200wpc x2 and use it to drive the bottom halves of my rti10s. I currently have the bottom halves set about 5db higher than the top halves so the bottom halves having an amp that is double the power of my htr should work well. i can then switch the onkyo back to 7.1 and still have the power of my rti10s where they are now. most of these amps have 5 way binding posts as output and accept 1/4 in cables in. 1/4in is easy to convert to rca so it should be easy to hook up.
So my question is do the output levels change as the volume changes on the onkyo?? anyone have any experience with this? I imagine the zone 2 would have adjustable volume, but then i would need to adjust the halves of my speakers independently, and i dont really want to do that. any ideas?
-Jeff

My System:
Onkyo Sr604
Carver 125x2
Polk Rti 10 (biamped)
Polk Monitor 30
Polk psw10bk
Polk Rti6
polk CSi3
Monster ripoff wire
Post edited by peffy03 on

Comments

  • Serendipity
    Serendipity Posts: 6,975
    edited November 2007
    I've never done so, but...

    There are a few forum members here that use pro amps for their home setups.

    I think they make good subwoofer amps.
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    Front projection, 2 channel, car audio... life is good!
  • AndyGwis
    AndyGwis Posts: 3,655
    edited November 2007
    I think it will work without a problem. . . but how well (quality-wise) is somewhat debateable.

    Some people have used car amps with batteries under their couches with 'success' and this sounds much more reasonable/feasible.

    Good luck with your frankensystem :)
    Stereo Rig: Hales Revelation 3, Musical Fidelity CD-Pre 24, Forte Model 3 amp, Lexicon RT-10 SACD, MMF-5 w/speedbox, Forte Model 2 Phono Pre, Cardas Crosslink, APC H15, URC MX-950, Lovan Stand
    Bedroom: Samsung HPR-4252, Toshiba HD-A2, HK 3480, Signal Cable, AQ speaker cable, Totem Dreamcatchers, SVS PB10-NSD, URC MX-850
  • Ron Temple
    Ron Temple Posts: 3,212
    edited November 2007
    No pre-outs on the 604...won't work.

    Combo rig:

    Onkyo NR1007 pre-pro, Carver TFM 45(fronts), Carver TFM 35 (surrounds)
    SDA 1C, CS400i, SDA 2B
    PB13Ultra RO
    BW Silvers
    Oppo BDP-83SE
  • Joe08867
    Joe08867 Posts: 3,919
    edited November 2007
    Like Ron said no preouts and I don't think the Zone 2 outs work together with the surrounds.
  • peffy03
    peffy03 Posts: 50
    edited November 2007
    im wondering if the level of the rec out for the tape deck changes with volume... ill have to pull out the voltmeter i guess
    other alternative would be to purchase a pre and run it to the separate inputs of the onkyo and later i could separate the pre between the onkyo and the pro audio amp... as far as quality is concerned, when i was in school i used to run sound for concerts and plays, we had a pair of jbl cabinets that shared 3 crown macrotech amps, getting roughly 2000wRMS each. Ive never heard anything else like them in my life... i have experience with smaller crown xls series, and the peavey cs series and they all perform well. it seems i can acquire a decent pro audio amp for around 200$ thats about 200wpc at 8 ohm... if it doesn't work out ill just start dj ing again i guess :)
    -Jeff

    My System:
    Onkyo Sr604
    Carver 125x2
    Polk Rti 10 (biamped)
    Polk Monitor 30
    Polk psw10bk
    Polk Rti6
    polk CSi3
    Monster ripoff wire
  • Sherardp
    Sherardp Posts: 8,038
    edited November 2007
    I dont think it will sound good. Just buy a used HT amp. There are some outlaws on audiogon going for 160 per amp, 200 x1(monoblocks).
    Shoot the jumper.....................BALLIN.............!!!!!

    Home Theater Pics in the Showcase :cool:

    http://www.polkaudio.com/forums/showcase/view.php?userid=73580
  • peffy03
    peffy03 Posts: 50
    edited November 2007
    what about if i fed the pro amp running the bottom halves of my rti10s with my subwoofer out? i can set this to have a lpf of 250hz and adjust the lpf of my sub to make it at the level i have i set now. would this work?
    -Jeff

    My System:
    Onkyo Sr604
    Carver 125x2
    Polk Rti 10 (biamped)
    Polk Monitor 30
    Polk psw10bk
    Polk Rti6
    polk CSi3
    Monster ripoff wire
  • cfrizz
    cfrizz Posts: 13,415
    edited November 2007
    Peffy, you need a new receiver that has preamp outputs in order to get a separate amplifier to power your speakers.
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2
  • tonyb
    tonyb Posts: 33,064
    edited November 2007
    Get your read on chief....your not grasping what others are trying to tell ya.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
  • peffy03
    peffy03 Posts: 50
    edited November 2007
    i understand that my amp doesn't have preouts and isn't designed for an external amp... im just looking for a soln between what i have and getting separates... trying to explore all possible avenues
    im just not ready to spend 500+ for a pro/pre and amp, but i really think that since the sub out is able to be set to as high as 250hz, that i can use an external amp to run the bottom halves of my rti10s which are subwoofers anyway. does anyone know what freq the subs in rti10s are crossed over at? if i can somehow make this work i can get my 7.1 back without losing the rti10s being biamped
    -Jeff

    My System:
    Onkyo Sr604
    Carver 125x2
    Polk Rti 10 (biamped)
    Polk Monitor 30
    Polk psw10bk
    Polk Rti6
    polk CSi3
    Monster ripoff wire
  • cfrizz
    cfrizz Posts: 13,415
    edited November 2007
    Ehh. I give up. Just don't come back here whining if you blow up your speakers!
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2
  • danger boy
    danger boy Posts: 15,722
    edited November 2007
    why are so many people here lately wanting to use pro amps for home theater use? I just don't get it? is it the power they are after or what? To me, it just seems like one big headache.

    Connections are wrong.. things have to be modified to work with this or that pro amp. Call me silly, but i like to keep things simple.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
  • peffy03
    peffy03 Posts: 50
    edited November 2007
    it isn't necessarily the power that im after. it just seems that for the money its much easier to get a 150~200wpc pro amp than a hts amp.. if you have any suggestions for certain amps to try id love to hear them.. im always open to other options. To be honest i dont have much exp with seperates, besides in proaudio. ive just always had receivers that were all in one. To be honest i don know what brands of hts amps are good and which ones to stay away from, i have heard many crown peavey and yamaha pro amps that sound great however. ultimately i will eventually get a pro/pre and external amps for the speakers, its just out of the price range right now, i can however swing an amp for now and after the holidays ill look for a deal on a pro/pre
    -Jeff

    My System:
    Onkyo Sr604
    Carver 125x2
    Polk Rti 10 (biamped)
    Polk Monitor 30
    Polk psw10bk
    Polk Rti6
    polk CSi3
    Monster ripoff wire
  • peffy03
    peffy03 Posts: 50
    edited November 2007
    i guess ill just look for a pro/pre and add an amp when i can
    thanks for your help
    -Jeff

    My System:
    Onkyo Sr604
    Carver 125x2
    Polk Rti 10 (biamped)
    Polk Monitor 30
    Polk psw10bk
    Polk Rti6
    polk CSi3
    Monster ripoff wire
  • tonyb
    tonyb Posts: 33,064
    edited November 2007
    Why don't you just upgrade the receiver to a 7.1 and solve all your issues?
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
  • peffy03
    peffy03 Posts: 50
    edited December 2007
    peffy03 wrote: »
    I was contemplating today, the possibility of integrating a pro audio amplifier into my hts. My setup consists of an onkyo sr604 that i have biamped on a pair of rti10s my rears are monitor 30s and my sub is a polk psw10 my center, is an older yamaha. what im thinking is that i can get a smaller crown or peavey say 200wpc x2 and use it to drive the bottom halves of my rti10s. I currently have the bottom halves set about 5db higher than the top halves so the bottom halves having an amp that is double the power of my htr should work well. i can then switch the onkyo back to 7.1 and still have the power of my rti10s where they are now. most of these amps have 5 way binding posts as output and accept 1/4 in cables in. 1/4in is easy to convert to rca so it should be easy to hook up.
    So my question is do the output levels change as the volume changes on the onkyo?? anyone have any experience with this? I imagine the zone 2 would have adjustable volume, but then i would need to adjust the halves of my speakers independently, and i dont really want to do that. any ideas?

    the receiver is 7.1, i have the rti10s biamped so it makes it 5.1, that was the point of the external amplifier on the subwoofers in the rti10s, then they would only take 2 channels of my onkyo instead of 4
    -Jeff

    My System:
    Onkyo Sr604
    Carver 125x2
    Polk Rti 10 (biamped)
    Polk Monitor 30
    Polk psw10bk
    Polk Rti6
    polk CSi3
    Monster ripoff wire
  • peffy03
    peffy03 Posts: 50
    edited December 2007
    the crossover is set at 125 hz internally in the rti10s. so the preout for the sub defiantly covers this range and would work for the time being.
    -Jeff

    My System:
    Onkyo Sr604
    Carver 125x2
    Polk Rti 10 (biamped)
    Polk Monitor 30
    Polk psw10bk
    Polk Rti6
    polk CSi3
    Monster ripoff wire
  • heiney9
    heiney9 Posts: 25,384
    edited December 2007
    danger boy wrote: »
    why are so many people here lately wanting to use pro amps for home theater use? I just don't get it? is it the power they are after or what? To me, it just seems like one big headache.

    Connections are wrong.. things have to be modified to work with this or that pro amp. Call me silly, but i like to keep things simple.

    DB, it's the cost. On paper it appears you can get a lot of power cheap in a Pro amp, but what the people don't understand is that pro amps as a general rule don't have the finesse, sound quality and accuracy, etc. a good HT amp has. It's simply a numbers game and a case of "those that don't know, don't know they don't know".

    To the OP, the ways you have described hooking things up won't work. Save your money until you can do it right.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Puritan Audio PSM136 Pwr Condtioner & Classic PC's | Legend L600 | Roon Nucleus 1 w/LPS - Tubes add soul!
  • tonyb
    tonyb Posts: 33,064
    edited December 2007
    peffy03 wrote: »
    the crossover is set at 125 hz internally in the rti10s. so the preout for the sub defiantly covers this range and would work for the time being.

    There's more to it than that,but nevermind,try it and tell us how it works out.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
  • cfrizz
    cfrizz Posts: 13,415
    edited December 2007
    LOL Keiko! I guess so.

    Heiney nailed it Al. It's all about being cheap & trying to take a short cut.
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2