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    Elektron82's Avatar
    Elektron82 is offline Junior Member



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    Icon31 HDR70 Sub Pre Out Low Volume

    JVC KD-HDR70 RCA Sub out is very low compared to the rear rca pre out.

    Same cable used in both cases, Same sub, All audio-related settings have been adjusted fully. Sound is there just a lot lower in volume. I have to max the sub out level and the amp gain to get it to sound close to flat (bass level matched to treble). In the rear out i can over-drive the sub without turning the gain all the way up.

    This is a new HU. I have used the sub in other systems before. The sub is a Pioneer TS-WX75A (I know its very entry-level, just temp until I put something nice together).

    I have 25 days to decide if I want to keep it or not. JVC gave generic "install problem, or not" answer. Found a review on amazon mentioning the same issue and that person had a decent amp. I don't want to have to go crazy with power just to get enough bass (which is just enough to over-whelm the highs coming from the HU built-in amp).

    I am thinking about trying a line booster for the sub out cable or trying a higher quality cable. I have a really long one on it right now but again why does it hit so hard on the rear out?







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    Re: HDR70 Sub Pre Out Low Volume

    Hi, I was wondering if you found a solution to your problem. I just installed a JVC XR-811 (euro model) and the sub out is also really low. When hooked up to either the front or rear pre-outs the bass booms. For now I have it on the rear pre-outs but I'd really like to use the sub out to get the extra sub controls.




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