Class D amp with LSi9

brianle
brianle Posts: 572
edited March 2012 in Speakers
I'm tempting to add an external amp to power my LSi9 and LSiC. Anyone has any experience with how the Rotel class D amp hooked up with the LSi 9 ? Thanks.
Post edited by brianle on
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  • DMara
    DMara Posts: 1,434
    edited February 2012
    I've tried the W4S ST-1000 with both LSi15 & LSiM707. It's Class D & it's powering those speakers quite excellently.
    Gears shared to both living room & bedroom:
    Integra DHC-80.3 / Oppo BDP-105 / DirecTV HR24 DVR /APC S15blk PC-UPS
    Living room:
    LSiM707's / LSiM706c / LSiM702 F/X's / dual JL Audio Fathom F113's / Parasound Halo A51 / Panasonic 65" TC-P65VT50
    Bedroom:
    Usher Dancer Mini 2 Diamond DMD's / Logitech SB Touch / W4S STP-SE / W4S DAC-2 / W4S ST-1000 / Samsung 52" LN52B750
    Other rooms:
    Audioengine AP4's / GLOW Audio Sub One / audio-gd NFB-3 DAC / Audioengine N22
    audio-gd NFB-10.2 / Denon AH-D7000
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  • Inspector 24
    Inspector 24 Posts: 1,308
    edited February 2012
    Is it because it's a Rotel, or because it's a Class D?
    Up
    LSi15 LSiC - RX-V3000

    Down
    LSiM707 - 706c - 702f/x - Dual HSU VTF-15H Mk2
    Parasound HCA-3500 - HCA-2003A - Marantz SR7005
    Sim2 D60 - Dragonfly 106" Panny 500

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  • BeefJerky
    BeefJerky Posts: 1,320
    edited February 2012
    Inspector 24 wrote: »
    Is it because it's a Rotel, or because it's a Class D?
    Well, I haven't heard any of Rotel's class-D amps, but I don't think it is one of those reasons in particular. Rotel usually makes very good amplifiers, so I would say it is unusual for Rotel to fail in this regard. As for class-D, there are good ones and bad ones, just like with any other class of amplifier (i.e. class-AB).
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  • Inspector 24
    Inspector 24 Posts: 1,308
    edited March 2012
    Got it. Thanks for the info, give me something more to investigate. :)
    Up
    LSi15 LSiC - RX-V3000

    Down
    LSiM707 - 706c - 702f/x - Dual HSU VTF-15H Mk2
    Parasound HCA-3500 - HCA-2003A - Marantz SR7005
    Sim2 D60 - Dragonfly 106" Panny 500

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  • EJR2
    EJR2 Posts: 5
    edited March 2012
    I've been keeping an eye out for reviews for the NAD C 3900D. I think it would be a nice solution for a second 2 channel set-up. But there is only one review so far that I have found.

    Here is the product page:

    http://nadelectronics.com/products/hifi-amplifiers/C-390DD-Direct-Digital-Powered-DAC-Amplifier

    It uses the same Class D amplification that was first used in the M2, which got great reviews from those who could aford it : ). I have not had the opportunity to listen to the M2, so I'm afraid I cannot give you any more info other than what is on the web.
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  • DaveHCYJ
    DaveHCYJ Posts: 89
    edited March 2012
    When you think about the pace of digital technology, I often wonder: in 10 or 15 years will class D amps be the absolute go to for complete neutral sound and besting even class A amps for S/N ratio?
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  • EJR2
    EJR2 Posts: 5
    edited March 2012
    Dave: Its certainly interesting. I bought the Panny XR-57 a few years back just for S&G after snobbery pushed the price down to $235. Not the most musical receiver, but for HT (and as a lightweight portable unit), that puppy rocked. Still use it for road trips, roof parties, etc.

    At that time, many were hoping that someone would take things to the next level and make a receiver that amplified digitally in PCM with more power and 4 ohm stability. Now Rotel, NAD and others doing just that. Its good to see, I think Class D received a bad rap from the audiophile community without real objectivity. The next few years will be very interesting.
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  • cfrizz
    cfrizz Posts: 13,415
    edited March 2012
    EJR2 wrote: »
    ...I think Class D received a bad rap from the audiophile community without real objectivity. The next few years will be very interesting.

    That's always the case whenever something new is introduced in audio.

    Rotel has always been known for their musical gear. I wasn't impressed with their first 100wpc digital amp, but the the 250wpc got the job done and was just fine. And being considerably lighter is definately a bonus.

    If I could, I would have an all Rotel gear rack.
    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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  • Face
    Face Posts: 14,340
    edited March 2012
    DaveHCYJ wrote: »
    When you think about the pace of digital technology, I often wonder: in 10 or 15 years will class D amps be the absolute go to for complete neutral sound and besting even class A amps for S/N ratio?
    Much sooner than that.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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