Looking to Power LSi 15's

mwaarna
mwaarna Posts: 280
edited January 2007 in Electronics
There is a sale for a used OutlAw 750 Amp which is rated for 250 @ 4ohms for 5 channels for under 600.

Or should I go for new Mono Blocks which are 300Watts at 4ohms but would only power 2 of my channels for the same price.
Click here To see My system
Polk LSI15,LSiC, LsiFX, SVS PB-12 Plus/2, Blue Jean Cables,Onkyo Pro PR-SC885P, Earthquake Cin
Post edited by mwaarna on

Comments

  • McLoki
    McLoki Posts: 5,231
    edited January 2007
    Personally I would go with the 750 if you are running home theater.

    If you decide to go with 7.1 you can always get a nice 2 channel amp to upgrade the power to your front speakers if you feel you need it.

    Michael
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
  • tonyb
    tonyb Posts: 33,020
    edited January 2007
    Either one will work,but you have to ask yourself one question,punk:D
    {in my best Dirty Harry voice}
    Do you have 2 speakers or 5 ?:D
    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
  • mwaarna
    mwaarna Posts: 280
    edited January 2007
    For now i only have finances for 2 channel, amp, avr, sub.

    Eventually i will upgrade to full 5.1, but for the fors 8-12months it will be only 2.1.

    Should i be worried about buying a used amp off audiogon?

    The person has over 250+ positive points on there.
    Click here To see My system
    Polk LSI15,LSiC, LsiFX, SVS PB-12 Plus/2, Blue Jean Cables,Onkyo Pro PR-SC885P, Earthquake Cin
  • tonyb
    tonyb Posts: 33,020
    edited January 2007
    No,the gon is one of the better places to buy used gear.Ebay is a tad risky.
    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 January 2007
    I would wait, & keep checking Audiogon until a 200wpc @ 8ohm Outlaw comes available. Or get the monoblocks.

    If you continue to get the rest of the LSI series and put them on the 750, eventually you will put a strain on the amp.
    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
  • mwaarna
    mwaarna Posts: 280
    edited January 2007
    Buying the used 5ch amp would save me 900 bucks over going with a 200wpc 8ohm amp(s)/Monoblocks.


    You guys really thinkg the 750 would be strained to run 5 LSI speakers, even tho the 750 is rated to 250 which is the maximum recommended wattage for the LSI series speakers?
    Click here To see My system
    Polk LSI15,LSiC, LsiFX, SVS PB-12 Plus/2, Blue Jean Cables,Onkyo Pro PR-SC885P, Earthquake Cin
  • mwaarna
    mwaarna Posts: 280
    edited January 2007
    Also how big of a difference is it to have 250wpc at 4ohm vs 300wpc at 40ohms to the LSI's?
    Click here To see My system
    Polk LSI15,LSiC, LsiFX, SVS PB-12 Plus/2, Blue Jean Cables,Onkyo Pro PR-SC885P, Earthquake Cin
  • wingnut4772
    wingnut4772 Posts: 7,519
    edited January 2007
    I would get the monos for now and do 2 channel for a bit and save for a higher powered 5 channel amp (not Outlaw) later for the whole set up . Then you can have room to upgrade to 7.1 when you are ready. ( or get a 3 channel amp) IMO the Outlaw does not do justice to the LSI15s. I used to have a set up with the 770 and all LSIs and when I upgraded to a more powerful amp (Earthquake Cinenova) the difference was night and day.
    Sharp Elite 70
    Anthem D2V 3D
    Parasound 5250
    Parasound HCA 1000 A
    Parasound HCA 1000
    Oppo BDP 95
    Von Schweikert VR4 Jr R/L Fronts
    Von Schweikert LCR 4 Center
    Totem Mask Surrounds X4
    Hsu ULS-15 Quad Drive Subwoofers
    Sony PS3
    Squeezebox Touch

    Polk Atrium 7s on the patio just to keep my foot in the door.
  • mwaarna
    mwaarna Posts: 280
    edited January 2007
    I would get the monos for now and do 2 channel for a bit and save for a higher powered 5 channel amp (not Outlaw) later for the whole set up . Then you can have room to upgrade to 7.1 when you are ready. ( or get a 3 channel amp) IMO the Outlaw does not do justice to the LSI15s. I used to have a set up with the 770 and all LSIs and when I upgraded to a more powerful amp (Earthquake Cinenova) the difference was night and day.


    if Budget was no concern, I would look at the Earthquake as well. But considering it is 4500 Retail, and my ideal budget for my HT is in the neihborhood of 5k, it puts the Cienova out of the question.

    By the way your setup looks pretty damn nice with the Dual SVS's. what part of miami do you live in? I'm over by University of Miami.
    Click here To see My system
    Polk LSI15,LSiC, LsiFX, SVS PB-12 Plus/2, Blue Jean Cables,Onkyo Pro PR-SC885P, Earthquake Cin
  • tonyb
    tonyb Posts: 33,020
    edited January 2007
    On a budget then try older carver models.Can drive those LSI's no problemo.
    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
  • wingnut4772
    wingnut4772 Posts: 7,519
    edited January 2007
    mwaarna wrote:
    if Budget was no concern, I would look at the Earthquake as well. But considering it is 4500 Retail, and my ideal budget for my HT is in the neihborhood of 5k, it puts the Cienova out of the question.

    By the way your setup looks pretty damn nice with the Dual SVS's. what part of miami do you live in? I'm over by University of Miami.

    You can get a 5 channel EC for about $2200.00 new street price. If you PM me I can give you the email for the guy who sold me mine.

    Thanks:) I live in the Kendall area.
    Sharp Elite 70
    Anthem D2V 3D
    Parasound 5250
    Parasound HCA 1000 A
    Parasound HCA 1000
    Oppo BDP 95
    Von Schweikert VR4 Jr R/L Fronts
    Von Schweikert LCR 4 Center
    Totem Mask Surrounds X4
    Hsu ULS-15 Quad Drive Subwoofers
    Sony PS3
    Squeezebox Touch

    Polk Atrium 7s on the patio just to keep my foot in the door.
  • mwaarna
    mwaarna Posts: 280
    edited January 2007
    You can get a 5 channel EC for about $2200.00 new street price. If you PM me I can give you the email for the guy who sold me mine.

    Thanks:) I live in the Kendall area.

    Heh, i think the one time fee of the 2200, would be a bit steep one time fee, but 600wpc @ 4ohm would be insane.

    Maybe i will start off with the 750 and later on once i have all the other pieces in place upgrade the amp.

    Considering this is going to be my first HT, i have avoided buying HTib and been saving up to get something Good right off the bat.

    I'm 24, at my first real job since i got out of college and getting a good HT setup has always been a dream of mine.

    Wingunt i also noticed we have the same tv, i love that 61" Sammy!
    Click here To see My system
    Polk LSI15,LSiC, LsiFX, SVS PB-12 Plus/2, Blue Jean Cables,Onkyo Pro PR-SC885P, Earthquake Cin
  • cfrizz
    cfrizz Posts: 13,415
    edited January 2007
    Your LSI's max output is 250. So if you give them the 200 @ 8ohm they will be getting that much more at 4 ohm.

    The LSI's really love lots of power, Wingnut can tell you that from experience.

    I know you want it all now, but you would be better served exercising a little patience and saving more money so that you can do it right the first time around.
    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
  • mwaarna
    mwaarna Posts: 280
    edited January 2007
    Would the Outlaw Audio Amp 7500 Do the LSi's Justice? Because they do offer financing, and i could apply for it and get the 7500 once i get approved. That would come down to 300 dollars per channel of power.

    This would essentially be the same as getting 5 Monoblocks. Except i noticed that hte 7500 has better THD at .03% vs .05%
    Click here To see My system
    Polk LSI15,LSiC, LsiFX, SVS PB-12 Plus/2, Blue Jean Cables,Onkyo Pro PR-SC885P, Earthquake Cin
  • tonyb
    tonyb Posts: 33,020
    edited January 2007
    Plenty of threads here to this question,do a search and you will find all you need to know about powering LSI's.Good luck,and welcome!
    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
  • McLoki
    McLoki Posts: 5,231
    edited January 2007
    mwaarna wrote:
    Would the Outlaw Audio Amp 7500 Do the LSi's Justice? Because they do offer financing, and i could apply for it and get the 7500 once i get approved. That would come down to 300 dollars per channel of power.

    This would essentially be the same as getting 5 Monoblocks. Except i noticed that hte 7500 has better THD at .03% vs .05%
    Also I think (and this is a big I think) that the monoblocks are class g after about 50wpc. The 7500 is class a/b all the way.

    I would still just get the 750 then get the rest of your LSi speakers. Once you have all 5 channels, evaluate if a nice 2 channel amp would add anything to your setup. (you can get very nice (and powerful) 2 channel amps of earlier vintage for great prices.)

    Any chance of demoing the 750 with the 15's prior to purchase? I am sure you will be fine with it. (you could bi-amp the front channels if you wanted to until you purchase your rear speakers....)

    Michael
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
  • wingnut4772
    wingnut4772 Posts: 7,519
    edited January 2007
    mwaarna wrote:
    Would the Outlaw Audio Amp 7500 Do the LSi's Justice? Because they do offer financing, and i could apply for it and get the 7500 once i get approved. That would come down to 300 dollars per channel of power.

    This would essentially be the same as getting 5 Monoblocks. Except i noticed that hte 7500 has better THD at .03% vs .05%
    I Have had the Outlaw. I have had the LSI15's and I am telling you that it is not enough for a complete LSI set up. I would get clipping at -10 reference on movies and it was aggravating because one would think the Outlaw should be enough. But it's not. Not really. I could have saved some money if I'd known this ahead of time.
    Sharp Elite 70
    Anthem D2V 3D
    Parasound 5250
    Parasound HCA 1000 A
    Parasound HCA 1000
    Oppo BDP 95
    Von Schweikert VR4 Jr R/L Fronts
    Von Schweikert LCR 4 Center
    Totem Mask Surrounds X4
    Hsu ULS-15 Quad Drive Subwoofers
    Sony PS3
    Squeezebox Touch

    Polk Atrium 7s on the patio just to keep my foot in the door.
  • george daniel
    george daniel Posts: 12,096
    edited January 2007
    LSI 15,2 channel=odyssey stratos extreme= more than adequate,and yes, I have one for sale :D
    JC approves....he told me so. (F-1 nut)
  • cfrizz
    cfrizz Posts: 13,415
    edited January 2007
    I think that a lot of that probably had to do with the size of your room Darla. If I remember correctly it was rather long & depending how far back you had the chairs/sofa, it probably was a strain.

    But I think in a normal size room, the 7500 would probably be fine.

    I Have had the Outlaw. I have had the LSI15's and I am telling you that it is not enough for a complete LSI set up. I would get clipping at -10 reference on movies and it was aggravating because one would think the Outlaw should be enough. But it's not. Not really. I could have saved some money if I'd known this ahead of time.
    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
  • McLoki
    McLoki Posts: 5,231
    edited January 2007
    Here you go - only $250 (shipped) and will power the LSi15's with ease. (and only one power cord)

    Michael
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
  • Lowell_M
    Lowell_M Posts: 1,660
    edited January 2007
    mwaarna wrote:
    if Budget was no concern, I would look at the Earthquake as well. But considering it is 4500 Retail, and my ideal budget for my HT is in the neihborhood of 5k, it puts the Cienova out of the question.

    By the way your setup looks pretty damn nice with the Dual SVS's. what part of miami do you live in? I'm over by University of Miami.

    My experience is only with RTi's, but, regarding amps, I noticed a huge difference between the ADCOM I now have and Outlaw monoblocks. For two channel, the laidback, detailed sound of the ADCOMs is awesome. The soundstage of the outlaws was no more impressive than my 65wpc H/K receiver IMO.

    I am talking stricktly 2-channel here, and keep in mind this is what my ears told me. Yours may hear things differently. But....Take a look at ADCOM too and maybe see if there are some Polkies around your area that woudl give you a listen. Good used ADCOM equipment is easy to find.

    Just my 2-cents. There are a lot of big fans of Outlaw too.
    HT
    RTi70 mains
    CSi30 center
    RTi28 Rears
    Velodyne CHT-12
    H/K AVR-247
    ADCOM GFA-7000
    Samsung PN58B860
    Playstation 3

    2-Channel
    Polk Audio LSi15's
    Rotel RCD-1072
    Nakamichi CA-5 Pre
    ADCOM GFA-555
    Signal Cable Analog II IC's
    Signal Ultra Bi-Wire Speaker Cables
  • pentium
    pentium Posts: 16
    edited January 2007
    Not to change the subject I just got Sunfire Grand Cinema 200x5 at 8Ohm. Does anyone know if this going to be good enoght amp to power up 5 LSi Speakers LSi15 or LSi25(Still Shoping for them) , LSiC ( Anyone Selling one) and LSiFX ( Installed Already :) )
  • Lowell_M
    Lowell_M Posts: 1,660
    edited January 2007
    pentium wrote:
    Not to change the subject I just got Sunfire Grand Cinema 200x5 at 8Ohm. Does anyone know if this going to be good enoght amp to power up 5 LSi Speakers LSi15 or LSi25(Still Shoping for them) , LSiC ( Anyone Selling one) and LSiFX ( Installed Already :) )

    Yes, should be pretty sweet!
    HT
    RTi70 mains
    CSi30 center
    RTi28 Rears
    Velodyne CHT-12
    H/K AVR-247
    ADCOM GFA-7000
    Samsung PN58B860
    Playstation 3

    2-Channel
    Polk Audio LSi15's
    Rotel RCD-1072
    Nakamichi CA-5 Pre
    ADCOM GFA-555
    Signal Cable Analog II IC's
    Signal Ultra Bi-Wire Speaker Cables
  • wingnut4772
    wingnut4772 Posts: 7,519
    edited January 2007
    cfrizz wrote:
    I think that a lot of that probably had to do with the size of your room Darla. If I remember correctly it was rather long & depending how far back you had the chairs/sofa, it probably was a strain.

    But I think in a normal size room, the 7500 would probably be fine.
    I suppose room size does not help and I guess the Outlaw will do ok by most people's standards. If we were talking any other speakers,(say 8 ohm) I would say Outlaw all the way. It's just that those darn LSis are really greedy for some even though their efficiencty rating is not horrible.
    Sharp Elite 70
    Anthem D2V 3D
    Parasound 5250
    Parasound HCA 1000 A
    Parasound HCA 1000
    Oppo BDP 95
    Von Schweikert VR4 Jr R/L Fronts
    Von Schweikert LCR 4 Center
    Totem Mask Surrounds X4
    Hsu ULS-15 Quad Drive Subwoofers
    Sony PS3
    Squeezebox Touch

    Polk Atrium 7s on the patio just to keep my foot in the door.
  • cfrizz
    cfrizz Posts: 13,415
    edited January 2007
    Yup you should be just fine. Welcome to CP.

    pentium wrote:
    Not to change the subject I just got Sunfire Grand Cinema 200x5 at 8Ohm. Does anyone know if this going to be good enoght amp to power up 5 LSi Speakers LSi15 or LSi25(Still Shoping for them) , LSiC ( Anyone Selling one) and LSiFX ( Installed Already :) )
    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