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Thread: use both LFE and Line in connections with 2 amps?

  1. #1
    Join Date
    Oct 2012
    Location
    Long Island NY
    Posts
    28

    Default use both LFE and Line in connections with 2 amps?

    I own the Rythmik L22 sub which has the two RCA input options: the LFE and also the L&R jacks. Are both ready to receive a signal when cables are physically plugged into both inputs?

    Currently my AVR sub out goes to the LFE in. I would like to purchase a stereo integrated amp (possibly a used Hegel H160, or Musical Fidelity M5si) that has a home theatre bypass input and add that into my HT system. I want better sound quality for stereo music. And since I have the sub, would also like to utilize it for music playback also.

    When using the AVR, the stereo amp would power my front L&R speakers. and the sub would receive the LFE signal sent from the AVR.

    When listening to stereo music, the AVR would be powered off. Can the variable stereo pre outs from the new stereo amp connect to the stereo line in jacks on the sub so that I could play music using the sub?

    Unfortunately, I would not be able to high-pass my stereo RAAL Towers, but if the crossover on the sub was set low enough I'm guessing this could work well.

    Does this hookup work? The subwoofer would play in both cases, irregardless of which amplifier was sending the signal?
    TV: LG 77OLEDC9 A/V Receiver: Anthem MRX 740
    Sources: Pana DP-UB9000, Zidoo Z9X, Google CCwGTV, ROON
    Stereo: Allo Digione Sig/USBridge Sig> Denafrips Ares II DAC> Kinki Studio EX-M1+ amp (front mains H/T bypass)
    Speakers: Front: Ascend ELX RAAL Towers, Sierra-2EXV2 center, Sides: Paradigm In-Walls CS-60SQ-SM, Subwoofer: two Rythmik L22
    Media Room (1,500 sq ft, 13ft Wx14.5ft Lx8ft H)

  2. #2
    Join Date
    Apr 2020
    Posts
    388

    Default Re: use both LFE and Line in connections with 2 amps?

    Why not use the receiver for music and stay with the LFE rca connection? That'd solve a lot of your issues right there...

  3. #3
    Join Date
    May 2015
    Location
    Houston, Texas
    Posts
    1,390

    Default Re: use both LFE and Line in connections with 2 amps?

    Yes, you can use the AVR subout to LFE for movies and the integrated subout to Line In for music on the Rythmik subs.

    This has been confirmed by Rythmik as I asked because considering the same set up.

    Either this or a variant via my miniDSP (AVR out to input 2 on minidsp, music preamp to input 1 on minidsp). MiniDSP outputs to subs lfe-in (most likely as can do bass management in the miniDSP, and set up different configurations for music and movies).

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