Devialet Expert Pro 140 (no pre out) and Subwoofer
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  1. #1
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    Devialet Expert Pro 140 (no pre out) and Subwoofer

    My Devialet Expert Pro 140 has no preamp or subwoofer output. My one sub only has RCA or Balanced inputs. The other sub has RCA and speaker connections.

    I emailed Devialet and this was their response:

    “Connecting a subwoofer is always possible in parallel of the front speakers
    All subwoofer feature a "high level" input”

    Does anyone see impedance issues or other problems with connecting two pairs of speaker wires to an Expert Pro 140 or any integrated? Basically one speaker pair goes to the sub and the other pair goes to my Focal speakers.

    Thoughts please.
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    Re: Devialet Expert Pro 140 (no pre out) and Subwoofer

    Here are a couple of articles that might provide insight into your question.


    How to integrate a sub here:


    https://jlaudio.zendesk.com/hc/en-us...&source=search


    https://jlaudio.zendesk.com/hc/en-us...&source=search

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    Re: Devialet Expert Pro 140 (no pre out) and Subwoofer

    Thanks, but my only question in my post wasn’t answered by either article. Also, I can’t use my JL Audio sub with the Devialet since it has no pre or sub output.
    MAIN SYSTEM - SST Ambrosia 2000 Second Edition Preamp and Son of Ampzilla II Amp, dCS Debussy DAC, dCS Network Bridge, Aurender ACS10, PS Audio P3 Power Plant, Focal Sopra No. 1 Speakers, JL Audio F112 Subwoofer, Elac SUB3070 Subwoofer, 20TB Synology NAS, Small Green Computer i5/1TB SSD running Roon

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    Re: Devialet Expert Pro 140 (no pre out) and Subwoofer

    This is more like a subwoofer question instead of an amplifier question.

    Subwoofer high level input may have a high impedance so it should not be a difficult load to the amp. For example, REL high level input typically has 100,000 ohm impedance or higher. You'd need to ask your subwoofer manufacturer (the one that offers high level speaker input) to confirm.
    Peter Lie
    LUMIN Firmware Lead

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  6. #5
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    Re: Devialet Expert Pro 140 (no pre out) and Subwoofer

    Connecting the sub with high level (speaker level) inputs to the Devialet along with the main speakers should present no problems.
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    Re: Devialet Expert Pro 140 (no pre out) and Subwoofer

    Does your Devialet have pre-out / amp in connections? If it does you can use an external crossover.
    Tom

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    Re: Devialet Expert Pro 140 (no pre out) and Subwoofer

    Quote Originally Posted by W9TR View Post
    Does your Devialet have pre-out / amp in connections? If it does you can use an external crossover.
    The Devialet Expert 220 Pro and Expert 250 Pro units have pre-out that can be configured for summed mono subwoofer output. Unfortunately the Expert 140 Pro that Projectman has does not. Peter's answer is the best answer in this case; unfortunately speaker-level inputs on subwoofers are less and less common these days, including with the JL Audio f112 does not have speaker-level inputs.
    Neko Audio
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    Re: Devialet Expert Pro 140 (no pre out) and Subwoofer

    No preamp or sub out connections.
    MAIN SYSTEM - SST Ambrosia 2000 Second Edition Preamp and Son of Ampzilla II Amp, dCS Debussy DAC, dCS Network Bridge, Aurender ACS10, PS Audio P3 Power Plant, Focal Sopra No. 1 Speakers, JL Audio F112 Subwoofer, Elac SUB3070 Subwoofer, 20TB Synology NAS, Small Green Computer i5/1TB SSD running Roon

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