Amplifier for LSIM 707

alucidideaalucididea Posts: 103
edited March 8 in Electronics
So, I just acquired an LSIM setup. 707s, 703s, and a 706 along with a Yamaha 3070 AVR. I’m looking to add some power amps for the 707s and hoping to get some input...

My first choice would be the NAD M22, although it’s a bit pricier than I’d like. My second choice would be one NAD C 268 for each 707. My question, is whether the 268 (in bridge mode) is too much power for the speaker. The specs on the 707s say up to 300w each and the amp does 300RMS.

My concern is that peak power output is too much for the speakers. Might anyone have any thoughts? Thanks in advance...

Comments

  • afterburntafterburnt Posts: 4,425
    Don't turn it up too much and amp the center.
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  • rooftop59rooftop59 Posts: 4,440
    edited March 8
    No such thing as too much power. Speakers will only use what they need. Too little power fries speakers, not too little.

    Having said that, bridging increases distortion and is generally not recommended. Just get a good used 2 channel 200 wpc+ amp from rotel, Parasound, b&k, etc and call it a day.
    HT Rig:
    Denon AVR-X4200w; Parasound HCA-1205A; Arcam rDac; Mains: Dynaudio Emit 10 + MartinLogan Dynamo (original) sub; Center - Def Tech Procenter 1000; Heights, Center Surround - Klipsch KHC - 6 In-Ceiling; Surrounds - Monoprice in-ceiling; Sub - SVS PB10-ISD; Sony BDP-S390, FireTV gen 2

    Master Bedroom
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  • alucidideaalucididea Posts: 103
    rooftop59 wrote: »
    No such thing as too much power. Speakers will only use what they need. Too little power fries speakers, not too little.

    Having said that, bridging increases distortion and is generally not recommended. Just get a good used 2 channel 200 wpc+ amp from rotel, Parasound, b&k, etc and call it a day.

    The specs on the bridged power is actually pretty decent. 300w @ 0.03% THD
  • michaeljhsda2michaeljhsda2 Posts: 1,848
    edited March 8
    I have bridged amps before and to me the sound is not as refined, i.e. smearing, distortion, whatever you want to call it. It just didn't sound clean. I was spending money I didn't need to spend under the assumption that if one amp is good, two is even better. Wrong. Rooftop's recommendation is good advice.
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  • alucidideaalucididea Posts: 103
    I have bridged amps before and to me the sound is not as refined, i.e. smearing, distortion, whatever you want to call it. It just didn't sound clean. I was spending money I didn't need to spend under the assumption that if one amp is good, two is even better. Wrong. Rooftop's recommendation is good advice.
    Any of the amps I can find in a similar price range have less power and an equivalent THD rating. In this instance, I don’t understand how less power is better than more, considering that spec.

    Is there something I’m missing?

  • rooftop59rooftop59 Posts: 4,440
    Git yer read on: https://www.audioasylum.com/messages/general/57210/biamplification-basics-an-article

    The load the amp perceives dounless, so from 8 ohm to 4 ohm nominal, the damping factor is similarly affected, current suffers, distortion increases, and many audible effects like Michael describes can follow.

    If you can return one, buy them both and see which way you like better: one amp, bi-amping or bridging. Report back ;-)
    HT Rig:
    Denon AVR-X4200w; Parasound HCA-1205A; Arcam rDac; Mains: Dynaudio Emit 10 + MartinLogan Dynamo (original) sub; Center - Def Tech Procenter 1000; Heights, Center Surround - Klipsch KHC - 6 In-Ceiling; Surrounds - Monoprice in-ceiling; Sub - SVS PB10-ISD; Sony BDP-S390, FireTV gen 2

    Master Bedroom
    Marantz SR-5007; Audiosource Amp Two, PSB Imagine Mini, Boston VR-10 center, NHT Super One CI surrounds, ACI Titan subwoofer, FireTV, Arcam rDac; Bryson BPD-1
  • alucidideaalucididea Posts: 103
    rooftop59 wrote: »
    This was perfect. Thanks!
    Perhaps I’d do better splitting the difference with one NAD C275BEE for now, and a second as soon as I can afford it. :smile:
  • Viking64Viking64 Posts: 3,067
    rooftop59 wrote: »
    Too little power fries speakers, not too little.
    Ummmmm.....okay. :p
  • ClipdatClipdat Posts: 4,489
    I believe you'll be perfectly satisfied with one C275BEE.
    alucididea wrote: »
    This was perfect. Thanks!
    Perhaps I’d do better splitting the difference with one NAD C275BEE for now, and a second as soon as I can afford it. :smile:

    Got Dayens?
  • alucidideaalucididea Posts: 103
    Clipdat wrote: »
    I believe you'll be perfectly satisfied with one C275BEE.
    alucididea wrote: »
    This was perfect. Thanks!
    Perhaps I’d do better splitting the difference with one NAD C275BEE for now, and a second as soon as I can afford it. :smile:
    I ended up springing for an NAD M22 instead! ;-)
  • ClipdatClipdat Posts: 4,489
    200.gif

    alucididea wrote: »
    I ended up springing for an NAD M22 instead! ;-)

    Got Dayens?
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