Amp for LSI9s and LSIC

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Comments

  • curved
    curved Posts: 664
    edited March 2009
    Don't worry about stated watts so much....focus on amps that can drive 4 ohm loads no problem. Those speakers will drop below 4 ohms which will make it EXTREMLY hard for pretty much any AVR (in your price range except NAD) to push without getting extremly hot or going into protect mode - shutting off.

    I don't suggest getting the Onkyo by itself to power those.
    Living Room:....................[HTML] [/HTML] Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11
    **Dayton and Sonicap Caps with Mills Resistors**
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  • candjhuntley
    candjhuntley Posts: 125
    edited March 2009
    Again - thanks for the thoughts guys - particularly with those amps.
    cfrizz wrote: »
    If you are not willing to spend the money to make sure the speakers operate to their full potential & without worry about blowing something out from too little power, then get different speakers.

    I don't mind spending up to the fullness of my budget. But i saw an possible opportunity to get in well under and thought i'd look at it. Now i know to look for minimum 200 wpc into 8 ohm to drive them. I guess i was just hoping that it would be as easy as finding something on Craigslist and being done with it - no big deal

    Getting different speakers is rather out of the question now - though i still see them as one of the best bang for buck speakers out there that i could find.
    Not my setup - but what I have put together for a friend (i.e. what mine would be if i had the money to invest :D )
    Front: 2 x LSI-9
    Center: LSI-C
    Rear: 4 x M10
    Sub: Elemental Design A2-300
    AVR: Onkyo TX-SR806
    Amp: Acurus 200x3
    BD: HTPC
    Television Programming: Dish ViP722
    Video: Epson 6500UB Front Projector

    If you're ever in St. Louis on a Sunday morning, come join us at the Hazelwood church of Christ for worship!
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  • curved
    curved Posts: 664
    edited March 2009
    Again.....don't look at what the amp is driving into 8 ohms!! You are not powering 8 ohm speakers. You are powering 4 ohm speakers. Look at what the amp does @ 4 ohms.
    Living Room:....................[HTML] [/HTML] Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11
    **Dayton and Sonicap Caps with Mills Resistors**
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  • candjhuntley
    candjhuntley Posts: 125
    edited March 2009
    curved wrote: »
    Again.....don't look at what the amp is driving into 8 ohms!! You are not powering 8 ohm speakers. You are powering 4 ohm speakers. Look at what the amp does @ 4 ohms.

    I guess the idea behind it is this - the speakers in question are stated to handle 200wpc into 4 ohms. So if i get an amp powerful enough to drive 200 wpc into 8 ohms, and is rated to handle a 4 ohm load, then it would be more than adequate to handle the necessary load for the speakers.

    The only reason to look at 8 ohm capacity as i see it is that it's the standard used. Usually, you have to dig to find the 4 ohm capacity, but the 8 ohm capacity is usually in the title - that's all. But yeah - obviously - you're looking for a powerful enough 4 ohm load.
    Not my setup - but what I have put together for a friend (i.e. what mine would be if i had the money to invest :D )
    Front: 2 x LSI-9
    Center: LSI-C
    Rear: 4 x M10
    Sub: Elemental Design A2-300
    AVR: Onkyo TX-SR806
    Amp: Acurus 200x3
    BD: HTPC
    Television Programming: Dish ViP722
    Video: Epson 6500UB Front Projector

    If you're ever in St. Louis on a Sunday morning, come join us at the Hazelwood church of Christ for worship!
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  • cfrizz
    cfrizz Posts: 13,415
    edited March 2009
    Curved, most amps that are driving 200wpc @ 8ohms will be pushing 300wpc or more @ 4ohms. That's why I recommend the 200 @ 8. There is never any question that the speakers are getting adequate power. But the LSI, can & will take even more & sound even better.
    curved wrote: »
    Again.....don't look at what the amp is driving into 8 ohms!! You are not powering 8 ohm speakers. You are powering 4 ohm speakers. Look at what the amp does @ 4 ohms.
    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
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  • curved
    curved Posts: 664
    edited March 2009
    cfrizz wrote: »
    Curved, most amps that are driving 200wpc @ 8ohms will be pushing 300wpc or more @ 4ohms. That's why I recommend the 200 @ 8. There is never any question that the speakers are getting adequate power. But the LSI, can & will take even more & sound even better.

    I think we're on the same page. I just didn't want him to go out and get an amp because it can drive x amount of watts into 8 ohms. I just wanted to make sure he will buy an amp that can run the LSi's because they do dip into 2 ohms occasionally. :D
    Living Room:....................[HTML] [/HTML] Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11
    **Dayton and Sonicap Caps with Mills Resistors**
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  • cfrizz
    cfrizz Posts: 13,415
    edited March 2009
    Any amp will run the LSI's. The question then becomes is will they be run to their full potential. But both know they will run/sound better with 300wpc @4 then with 200wpc @ 4.
    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
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  • curved
    curved Posts: 664
    edited March 2009
    An Onkyo M282 amp will not power those LSi's....well, maybe for a short while.

    I would rather have my Adcom 545 to power those than an Audiosource 300. The Audiosource puts out more watts/channel.
    Living Room:....................[HTML] [/HTML] Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11
    **Dayton and Sonicap Caps with Mills Resistors**
    · Share on FacebookShare on Twitter
  • candjhuntley
    candjhuntley Posts: 125
    edited March 2009
    Well, it looks like Sami's coming through and my search is now OVER!

    Thanks for all the help guys - i'm learning a LOT about true audiophile setups here!
    Not my setup - but what I have put together for a friend (i.e. what mine would be if i had the money to invest :D )
    Front: 2 x LSI-9
    Center: LSI-C
    Rear: 4 x M10
    Sub: Elemental Design A2-300
    AVR: Onkyo TX-SR806
    Amp: Acurus 200x3
    BD: HTPC
    Television Programming: Dish ViP722
    Video: Epson 6500UB Front Projector

    If you're ever in St. Louis on a Sunday morning, come join us at the Hazelwood church of Christ for worship!
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  • devani
    devani Posts: 1,497
    edited March 2009
    enjoy your new gears....let us know how you like it..
    Video: LG 55LN5100/Samsung LNT4065F
    Receiver: HK AVR445
    Source: OPPO BDP-93
    HT: POLK SPEAKERS RTi6, FXi3, CSi5, VTF-3 MK2
    2Ch system: MC2105, AR-XA, AR-2A, AR9, BX-300, OPPO BDP-83
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  • bdtae5656
    bdtae5656 Posts: 235
    edited March 2009
    candjhuntley wrote: »
    First amp for consideration:

    B&K AV5000 Series ll - $450 at audiogon - 185 wpc into 4 ohm - what do you think?

    How bout a Sherwood Newcastle AM-9080 5-channel Power Amp
    120 watts/ channel at 8 ohms 175 watts/chan. at 4 ohms
    TV:Sony Bravia XBR4 52'
    Mains: Lsi m 705
    C:Lsi m 706
    Rears: Lsi m 703
    Sub: Epik Empire
    Pre:Marantz AV 7005
    Amp:Sunfire TGA-7400
    Blueray: Opp 93
    A/V Component: Panamax M5100-PM
    Cables: Signal Cable, White Zombie, MIT, Pepster's power cables
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  • candjhuntley
    candjhuntley Posts: 125
    edited March 2009
    bdtae5656 wrote: »
    How bout a Sherwood Newcastle AM-9080 5-channel Power Amp
    120 watts/ channel at 8 ohms 175 watts/chan. at 4 ohms

    I'm not sure i understand. Are you asking b/c you have one you'd like to sell? (I haven't seen it in the marketplace) - or because you've seen one somewhere for sale that you're passing on? Or b/c you're in a similar predicament and you're wanting thoughts on this for you?

    As far as my search, it's finished. Sami is providing exactly what i need - taking care of fellow Polkie
    Not my setup - but what I have put together for a friend (i.e. what mine would be if i had the money to invest :D )
    Front: 2 x LSI-9
    Center: LSI-C
    Rear: 4 x M10
    Sub: Elemental Design A2-300
    AVR: Onkyo TX-SR806
    Amp: Acurus 200x3
    BD: HTPC
    Television Programming: Dish ViP722
    Video: Epson 6500UB Front Projector

    If you're ever in St. Louis on a Sunday morning, come join us at the Hazelwood church of Christ for worship!
    · Share on FacebookShare on Twitter
  • bdtae5656
    bdtae5656 Posts: 235
    edited March 2009
    candjhuntley wrote: »
    I'm not sure i understand. Are you asking b/c you have one you'd like to sell? (I haven't seen it in the marketplace) - or because you've seen one somewhere for sale that you're passing on? Or b/c you're in a similar predicament and you're wanting thoughts on this for you?

    As far as my search, it's finished. Sami is providing exactly what i need - taking care of fellow Polkie

    Im in the same boot as you....Im looking for an amp
    TV:Sony Bravia XBR4 52'
    Mains: Lsi m 705
    C:Lsi m 706
    Rears: Lsi m 703
    Sub: Epik Empire
    Pre:Marantz AV 7005
    Amp:Sunfire TGA-7400
    Blueray: Opp 93
    A/V Component: Panamax M5100-PM
    Cables: Signal Cable, White Zombie, MIT, Pepster's power cables
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  • candjhuntley
    candjhuntley Posts: 125
    edited March 2009
    You may want to post a new thread as i don't know if too many are still looking at this one

    Are you in the exact same boat? (i.e. looking for an amp to run LSI9s and an LSIC? If so - then the advice given so far is great - look for a solid amp that is designed to run both 8 ohm and 4 ohm, and since the speakers are designed for 200wpc / 4 ohm, get an amp that will do 200wpc / 8 ohm, that way the 4 ohm will be MORE THAN plenty

    Such amps would be...

    Acurus 200x3 (what Sami is selling to me for my setup)
    Adcom 5503
    3 x Outlaw Monoblocks

    And really, any other reputable brand that will run well in excess of 200wpc / 4 ohm

    And once you have some options (looking at the Polk market place, audiogon, various audiophile forums all over the place with classified sections, ebay, craigslist) then start a new thread asking people about your options and what they think

    Hope it helps - and good luck!
    Not my setup - but what I have put together for a friend (i.e. what mine would be if i had the money to invest :D )
    Front: 2 x LSI-9
    Center: LSI-C
    Rear: 4 x M10
    Sub: Elemental Design A2-300
    AVR: Onkyo TX-SR806
    Amp: Acurus 200x3
    BD: HTPC
    Television Programming: Dish ViP722
    Video: Epson 6500UB Front Projector

    If you're ever in St. Louis on a Sunday morning, come join us at the Hazelwood church of Christ for worship!
    · Share on FacebookShare on Twitter
  • Mustang Matt
    Mustang Matt Posts: 23
    edited March 2009
    I setup my LSi9/LSiC/LSiFX combo tonight with an outlaw 750 amplifier. This amp is rated 5 x 165 @ 8 Ohm and 5 x 250 @ 4 Ohm. Sounds great to me! I bought it used for $550 shipped with BJC interconnect cables.
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  • candjhuntley
    candjhuntley Posts: 125
    edited March 2009
    Yeah - the Outlaw was on my list of ones to look at - though out of price range personally (keeping at $400 and under) - but i'm glad to hear it's sounding good for you!

    Sami just shipped the Acurus 200x3 today! So in a few days, i'll be enjoying it as well! (at least until i have to go home, then my buddy can keep enjoying it from there - oh well - someday i'll do my OWN setup :)
    Not my setup - but what I have put together for a friend (i.e. what mine would be if i had the money to invest :D )
    Front: 2 x LSI-9
    Center: LSI-C
    Rear: 4 x M10
    Sub: Elemental Design A2-300
    AVR: Onkyo TX-SR806
    Amp: Acurus 200x3
    BD: HTPC
    Television Programming: Dish ViP722
    Video: Epson 6500UB Front Projector

    If you're ever in St. Louis on a Sunday morning, come join us at the Hazelwood church of Christ for worship!
    · Share on FacebookShare on Twitter