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    MN.Nice.507's Avatar
    MN.Nice.507 is offline Junior Member



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    JVC KD-X340BTS RCA output voltage.

    Looking to maximize my RCA output voltage on my headunit to my SW Amp, but it seems the only way I can even come remotely close to getting the full 4v out of the unit is to completely max out my volume and SW Level control on the deck itself, which is obviously not ideal, not looking to clip the **** out of everything (dont have a DD1 or O-scope at the moment). Even with my SW Level maxed and my head unit volume set at 30 out of 35, I only push around 1.7ish volts.

    Does anyone have firsthand experience with this HU and where exactly I'd start running into clipping/distortion & still push the most volts through my RCAs?







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    Jeffdachef's Avatar
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    Re: JVC KD-X340BTS RCA output voltage.

    Quote Originally Posted by MN.Nice.507 View Post
    Looking to maximize my RCA output voltage on my headunit to my SW Amp, but it seems the only way I can even come remotely close to getting the full 4v out of the unit is to completely max out my volume and SW Level control on the deck itself, which is obviously not ideal, not looking to clip the **** out of everything (dont have a DD1 or O-scope at the moment). Even with my SW Level maxed and my head unit volume set at 30 out of 35, I only push around 1.7ish volts.

    Does anyone have firsthand experience with this HU and where exactly I'd start running into clipping/distortion & still push the most volts through my RCAs?
    a lot of the newer units are designed to go max volume to get full pre-out voltage. Dont be scared of it Its better than a high gained amp.



    09 Sienna Subs : Four Team Ascendant 18s......Sub amp: Two Taramps 15k
    Headunit: Pioneer 80PRS................................Mids/Highs amp: CT 500.2, ppi 600.2, ppi 900.4 bridged
    Front stage: Two PWX 10s per door midbass only....... PRV 6MR500 midrange....... Massive CT 2 german tweeters.
    320 amp Singer alt....... 1 group 34 under the hood 6 group31 agms in the back 560 amp hours total.

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    Re: JVC KD-X340BTS RCA output voltage.

    KD-X340BTS?In-Dash Receivers?JVC USA - Products -

    Dam nice HU from all the features listed. Between 4-5 volts on some HU is typical. There's some that are 2v, and in that case, the gain would need to be higher turned up vs. one with 4 volts.



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    Re: JVC KD-X340BTS RCA output voltage.

    Quote Originally Posted by MN.Nice.507 View Post
    Looking to maximize my RCA output voltage on my headunit to my SW Amp, but it seems the only way I can even come remotely close to getting the full 4v out of the unit is to completely max out my volume and SW Level control on the deck itself, which is obviously not ideal, not looking to clip the **** out of everything (dont have a DD1 or O-scope at the moment). Even with my SW Level maxed and my head unit volume set at 30 out of 35, I only push around 1.7ish volts.



    Does anyone have firsthand experience with this HU and where exactly I'd start running into clipping/distortion & still push the most volts through my RCAs?
    specs list output voltage as 4, but youll likely only get that when its cranked and on a shotter source like a .wav cd unlike usb which is what i use 99.9999999999999999% of the time. That being said, you really dont want 4 volts coming out of your deck unless its needed otherwise your amps will be be going to full output at 2/3 of its volume #

    that and the way most systems with subs but no amp on the front (and rear stage if you run rears, that is) cant go anywhere near max volume because the speakers will distort on the headunits power at that volume level anyways



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    I just added 5 SoundQubed stickers, and despite having no equipment upgrades, it added 76 DB!!!

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    Re: JVC KD-X340BTS RCA output voltage.

    I have the 33 "marine" model from last year (almost identical specs) and i bought it strictly because it was the only shallow din receiver that had three sets of 4v preouts and a 13 band eq. In hindsight I wish I'd have gone with a pioneer unit with a likely stronger 2v preout rating. That said we set mine at 30 too with a .wav but i was going to try 35 soon. It's inevitable that I'm probably going to add a line driver. The tru technology six channel and the zapco are the two units that I'm looking at. Again i need a shallow din otherwise i would probably have switched it out for an alpine unit.




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    Re: JVC KD-X340BTS RCA output voltage.

    Quote Originally Posted by BCotrell View Post
    I have the 33 "marine" model from last year (almost identical specs) and i bought it strictly because it was the only shallow din receiver that had three sets of 4v preouts and a 13 band eq. In hindsight I wish I'd have gone with a pioneer unit with a likely stronger 2v preout rating. That said we set mine at 30 too with a .wav but i was going to try 35 soon. It's inevitable that I'm probably going to add a line driver. The tru technology six channel and the zapco are the two units that I'm looking at. Again i need a shallow din otherwise i would probably have switched it out for an alpine unit.
    Set your gains properly its not an issue.



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    Re: JVC KD-X340BTS RCA output voltage.

    Yeah I went too conservative.




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    Re: JVC KD-X340BTS RCA output voltage.

    Yeah guys, higher pre-out just means lower gains, lower pre-out means higher gain on the amp. Its not rocket science, you dont need any line drivers or any bullsh*t like that. Just dont a p*ssy when setting your gains. If you know you have 2 volt pre-out then set it for 2 volt pre-out which will be 60 or 70% if the amp's pentiometer goes up to 9 volts.



    09 Sienna Subs : Four Team Ascendant 18s......Sub amp: Two Taramps 15k
    Headunit: Pioneer 80PRS................................Mids/Highs amp: CT 500.2, ppi 600.2, ppi 900.4 bridged
    Front stage: Two PWX 10s per door midbass only....... PRV 6MR500 midrange....... Massive CT 2 german tweeters.
    320 amp Singer alt....... 1 group 34 under the hood 6 group31 agms in the back 560 amp hours total.

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