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  1. #1
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    Boosting the Output Voltage of a Sonos Connect

    Anyone-

    I purchased an Onkyo A-9050 as part of a whole house solution for two reasons. 1- Pre Amp Outs, and 2- Auto Standby.

    Inputs are 1- Sonos Connect and 2- CD Player

    I never tested with the CDP, but when putting the unit into Auto Standby, even with the Sonos playing Pandora, the Onkyo shuts down in 30 minutes as if not getting a signal.

    I spoke to their Tech Support this morning and they felt that maybe the Sonos is not sending a strong enough signal to let the Onkyo know it is active. Variable Volume is being used, the Onkyo is set to 12 o'clock and all rooms have their own volume controls and overall volume is controlled by iPhone App.

    I found this Line Level Signal Booster and trying to figure out if it would do the trick of sending a stronger signal from the Sonos to the Onkyo.

    Line Level Gain Boost

    Any help or other suggestions would be great.

  2. #2
    Shostakovich fan Feanor's Avatar
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    One wonders whether Onkyo tech support isn't passing the buck on this, but it's still quite likely that a signal boost would solve the problem; does the Sonos have a variable output such the it could be set higher?

    Anyway, bear in mind that the LGB-1 booster device is, in fact, an amplifier so that it could have some affect on the sound quality.

  3. #3
    Forum Regular blackraven's Avatar
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    That unit looks very interesting. I did not know that they exist so I did a little investigating. Here are a few others-

    https://www.bhphotovideo.com/bnh/con...C&A=details&Q=

    MCM Custom Audio Stereo Line Level Amplifier Adjustable 0 ~ 15dB Gain | 50-14820 (5014820) | MCM Custom Audio

    https://www.amazon.com/iBoost-800-St.../dp/B00CVDN2O0

    https://www.amazon.com/dp/B000RZXAHI...XFHFVDYXEZT5RS


    I may pick one of these up for my son to use with his Pass B1 preamp that we built. It has no gain. I might get the top one to convert single ended to XLR so he can use the XLR's on a Parasound A21.

    I would like to know how these devices affect the sound and if they can be used between a DAC and preamp.
    Pass Labs X250 amp, BAT Vk-51se Preamp,
    Thorens TD-145 TT, Bellari phono preamp, Nagaoka MP-200 Cartridge
    Magnepan QR1.6 speakers
    Luxman DA-06 DAC
    Van Alstine Ultra Plus Hybrid Tube DAC
    Dual Martin Logan Original Dynamo Subs
    Parasound A21 amp
    Vintage Luxman T-110 tuner
    Magnepan MMG's, Grant Fidelity DAC-11, Class D CDA254 amp
    Monitor Audio S1 speakers, PSB B6 speakers
    Vintage Technic's Integrated amp
    Music Hall 25.2 CDP
    Adcom GFR 700 AVR
    Cables- Cardas, Silnote, BJC
    Velodyne CHT 8 sub

  4. #4
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    Thanks guys, SQ is no issue for these people and right now it sounds better than the Yammie HT it replaced.

    The Sonos does have Variable/Fixed but if set to fixed you cannot use the Volume within the App and have to use the volume on the Onkyo, which is burried in a basement closet, so not happening.

    I need to retest the system with the CDP to see if sympton is same or works as expected.

    The Sonos will put out the full 2 Volts in Fixed but less in Variable so they may be on the money here.

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