Lsi15 question

JTodd
JTodd Posts: 20
edited January 2012 in Speakers
Will a Harman Kardon AVR 1650 be enough power for the lsi15, lsi 7 and lsic or will it need an amp? Tnaks in
advance!
Post edited by JTodd on
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  • 62caddy
    62caddy Posts: 137
    edited January 2012
    Hmmm. I just did a quick check of the 1650 and it's 95 watt rating should suffice. However a lot depends on your room size and the volume levels you listen. The main thing about the LSi15's is their 4 ohm rating which will be more taxing on your amp and you might need a beefier unit that is designed with the kind of loads the 15s are likely to present. This is especially going to be true if you like to crank it up for music- in order to get the most out of the 15s; less so the LSi7. There may be a few AVRs that'll do the 15s justice but unless you keep to moderate listening levels, you may need to invest in better amplification.
    Main:
    McIntosh: MC 2155, MC 2125(x2), MR 80, C 32, MQ 101; Snell J7; Polk: RTiA7, RTiA9;
    Pioneer PL-518; A/T 440 MLa; Yamaha CD
    Vintage:
    McIntosh: MX110Z, MC 2505, MC 240, Thorens TD 145; Shure V15III; Altec 14, Boston T1000; Yamaha CDX 393 CD; Yamaha Cass
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  • mdaudioguy
    mdaudioguy Posts: 5,165
    edited January 2012
    A better answer is, No. That AVR is only rated for 8 ohm speakers, as it says right below the speaker terminals on the back.
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  • tonyb
    tonyb Posts: 33,014
    edited January 2012
    Yep, straight up answer is no, plus I don't believe your receiver has preouts to add an amp anyway.
    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
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  • 62caddy
    62caddy Posts: 137
    edited January 2012
    I'll be the first to admit- I'm a dyed-in-the-wool old school stereo guy and lost a lot of interest in hi-fi when- to quote author and audio reviewer Ken Kessler- " video turned this hobby into a steaming pile of crap..." So forgive my ignorance when it comes to these newfangled 5.1/7.1 AVRs and their capabilities; I would never dream of buying a unit that was rated for 8 ohm only for as we all know, is only a nominal rating. A large 4 ohmer LSi 15 is going to need a real amp.
    Main:
    McIntosh: MC 2155, MC 2125(x2), MR 80, C 32, MQ 101; Snell J7; Polk: RTiA7, RTiA9;
    Pioneer PL-518; A/T 440 MLa; Yamaha CD
    Vintage:
    McIntosh: MX110Z, MC 2505, MC 240, Thorens TD 145; Shure V15III; Altec 14, Boston T1000; Yamaha CDX 393 CD; Yamaha Cass
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  • tonyb
    tonyb Posts: 33,014
    edited January 2012
    Pretty much all low to midline receivers are only rated at 8 ohm. The marketing guru's thought they could capatalize on tricky terminolgy and ratings by adding "bi-amp" capabilities, or 4 ohm capabilities. Deceiving at best, when they just add a switch to prevent their poor power supply from overheating and limiting the current flow and calling that 4 ohm capable. While most older stereo receivers had better power supplies and could drive a 4 ohm speaker like bookies easily, I still wouldn't stick a big floorstander of 4 ohms on an old receiver anyway. 95 watts per channel ? In 2 channel maybe, but in 5 channel that drops. They don't tell you that. They stick a 400 watt power supply in a receiver and advertise it as 7 channels at 100 watts each. How does that add up ? It doesn't and still don't know how they get away with it.
    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
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  • 62caddy
    62caddy Posts: 137
    edited January 2012
    Hopefully the FTC will once again step in as they did way back in '72 to rectify the situation of inflated output specs. The laws had been written when two channel was the standard and output had to be stated as per channel with no more than x% distortion from 20-20,000 Hz. Now they can get away with multi-channel and 95 watts which is total but still qualifies since the unit can still be used in two channel mode. (If I understand correctly) In the old days consumers understood that if you added an additional speaker pair, the net output would've been halved to each speaker when driven simultaneously.

    There were a few receivers that were high current design capable of driving 4 ohms; the one I have is rated for 2- but that's relatively rare in a receiver.
    Main:
    McIntosh: MC 2155, MC 2125(x2), MR 80, C 32, MQ 101; Snell J7; Polk: RTiA7, RTiA9;
    Pioneer PL-518; A/T 440 MLa; Yamaha CD
    Vintage:
    McIntosh: MX110Z, MC 2505, MC 240, Thorens TD 145; Shure V15III; Altec 14, Boston T1000; Yamaha CDX 393 CD; Yamaha Cass
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  • ematthews
    ematthews Posts: 27
    edited January 2012
    Emotiva
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  • tonyb
    tonyb Posts: 33,014
    edited January 2012
    ematthews wrote: »
    Emotiva

    Yep, I hear they make great parking stops in the garage.:cheesygrin:
    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
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  • rebuy
    rebuy Posts: 695
    edited January 2012
    Oh I don't see the big deal when I can go to any box store and buy a HTIB for my TV and get anywhere from 500 to 1500 watts for the low price of 90 to 500 dollars. Watts are cheap. Hey, it's got a sub too.
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  • michael1947
    michael1947 Posts: 775
    edited January 2012
    You got a garage???
    Main Family Room: Sony 46 LCD, Sony Blue Ray, Sony DVD/VCR combo,Onkyo TXNR 708, Parasound 5250,
    Polk SDS-SRS with mods, CSI 5 center + Klipsch SC2, Polk RT2000P rears, Klipsch KG 1.5's sides, Polk Micro Pro 1000, Polk Micro Pro 2000, Polk SW505, Belkin PF60, Signal Cable Classics,Monster IC's, 2 15 amp circuits & 1 20 amp circuit.

    Living Room: Belkin PF60, Parasound HCA2200, MIT ProlineEXP balanced IC's,Emotiva XDA-1 DAC/Pre,Emotiva ERC2 transport,MIT AVT2, Polk LSI 9's.
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  • michael1947
    michael1947 Posts: 775
    edited January 2012
    No. Lately my standard answer/remedy is: buy a decent AVR with all of the latest hook-ups including pre-outs and a warranty, a re-furb will do. You can now use the avr for all of it's neat wifi/usb/hdmi stuff and leave the amplification duties to the amp of your choice. Both units will be happier and live long while you prosper.
    Main Family Room: Sony 46 LCD, Sony Blue Ray, Sony DVD/VCR combo,Onkyo TXNR 708, Parasound 5250,
    Polk SDS-SRS with mods, CSI 5 center + Klipsch SC2, Polk RT2000P rears, Klipsch KG 1.5's sides, Polk Micro Pro 1000, Polk Micro Pro 2000, Polk SW505, Belkin PF60, Signal Cable Classics,Monster IC's, 2 15 amp circuits & 1 20 amp circuit.

    Living Room: Belkin PF60, Parasound HCA2200, MIT ProlineEXP balanced IC's,Emotiva XDA-1 DAC/Pre,Emotiva ERC2 transport,MIT AVT2, Polk LSI 9's.
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  • tonyb
    tonyb Posts: 33,014
    edited January 2012
    rebuy wrote: »
    Oh I don't see the big deal when I can go to any box store and buy a HTIB for my TV and get anywhere from 500 to 1500 watts for the low price of 90 to 500 dollars. Watts are cheap. Hey, it's got a sub too.

    Can't wait for you to post a link to these HTIB units that put out 1500 watts. I'll wait .....
    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
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  • tonyb
    tonyb Posts: 33,014
    edited January 2012
    michael1947 wrote: »
    You got a garage???

    Yeah, it's on wheels though, does that count ?
    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
    · Share on FacebookShare on Twitter