Powering 4-ohm LSi7 with Yamaha receiver?

techguy
techguy Posts: 2
edited January 2005 in Electronics
I have a Yamaha RX-V1500 receiver. Will it be able to power the 4-ohm LSi7's. The receiver seems to only have either an 8 or 6-ohm setting for speakers.
Post edited by techguy on
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  • B3Nut
    B3Nut Posts: 76
    edited January 2005
    It will be able to power them, but you'll want to elevate the receiver with hockey pucks under the feet and give a foor or two above the vents to ensure cooling. If you want to run this system long-term, you'd be well advised to invest in a proper separate power ampifier, though. Get a used Adcom GFA-545 and connect it to the front preamp outputs, use the receiver's power amp for center and rear duties.

    Also, if you use the 6-ohm setting it is highly likely that sonics will be severely compromised. I'd run it at the full-rail-voltage 8 ohm setting and fan-cool the unit until I could get a proper amplifier for the LSi's.

    TP
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  • gwh
    gwh Posts: 1,451
    edited January 2005
    Ran my LSI setup with a Denon 3803 for a couple of weeks...receiver ran a little warm... it sounded decent...added an external five channel Adcom amp...it’s like night and day bro...do your ears and equipment a favor and purchase a suitable amp.

    G
    HT:
    Martin Logan Motion 40
    Martin Logan Motion 50XT
    Emotiva Airmotiv E2
    SVS SB16 Ultra
    Def Tech Reference Sub
    Yamaha RX-A3070

    Signal Cable speaker wires & interconnects.
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  • organ
    organ Posts: 4,969
    edited January 2005
    Leave the switch at 8 Ohms. Yes, it's safe to use your Yammi to power the LSi but you should invest in an external amp to get the most out of them. I've ran my LSi9 on an Onkyo receiver and now it's running on a Harman/Kardon with no problem. Just don't turn them too high.

    Maurice
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