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  1. #1
    Romeo Delight
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    11.07.13 @ 11:34 AM
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    Default JSX Head on a 5150 Combo...can it be done?

    Is there anyway that one can use a JSX head through the speakers of a 5150 combo without compromising the sound? Even with a small modification?

    I'm trying to save money and only get the JSX head but shelling out the $$$ for new speakers is just not going to happen (for financial reasons).

    Any help appreciated.

  2. #2
    Hot For Teacher danward5150's Avatar
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    06.11.16 @ 04:33 AM
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    You could take the direct out/preamp out of the JSX in to the effects return loop on the 5150. This will give you access to the 5150 combo's power amp section (and the Presence/Resonance controls). I use the effects return on my combo to use my Rocktron Chameleon as a pre-amp instead of the combo's preamp.

    There may be an issue with running the JSX amp without a speaker plugged in. Need a more tech guy to answer that one. Not sure if it needs something to take the speaker load or not.
    Last edited by danward5150; 02.01.05 at 01:31 PM.

  3. #3
    Top Of The World patvh1's Avatar
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    05.23.12 @ 02:26 PM
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    I just bought a JSX head myself a few months ago. This may be another option that you may notwant to hear, but I'll throw it out there anyway. Why don't you trade your 5150 combo in for a Triple xxx cabinet? That's what I have, and I beleive it was around $550.00 new. Another option, is start looking around your area for a used gear place. We have alot of them around here in Denver, and I've been seeing alot of "used" 5150 4 x 12 Cabs for pretty cheap. Most have seen there fair share of gigging, but, what do you care, right, as long as it works. Beleive me, trading your 5150 combo is not that much of a loss, especially for what you have now. In my opinion, the JSX is LIGHT YEARS ahead of the 5150.
    "I endorsed the guitar I used to play, I designed this one.....Big Difference!" EVH

  4. #4
    Little Dreamer PV Wolfgang's Avatar
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    07.05.05 @ 02:35 AM
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    Yep just unplug the 5150's speakers from inside the combo and it should reach the JSX, i think the combo runs at 8 ohms so the JSX would need to be set accordingly.

  5. #5
    Little Dreamer PV Wolfgang's Avatar
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    07.05.05 @ 02:35 AM
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    Quote Originally Posted by danward5150
    You could take the direct out/preamp out of the JSX in to the effects return loop on the 5150. This will give you access to the 5150 combo's power amp section (and the Presence/Resonance controls). I use the effects return on my combo to use my Rocktron Chameleon as a pre-amp instead of the combo's preamp.

    There may be an issue with running the JSX amp without a speaker plugged in. Need a more tech guy to answer that one. Not sure if it needs something to take the speaker load or not.
    DO NOT DO THIS, THE JSX NEEDS A SPEAKER LOAD WHICH GOING OUT OF THE PREAMP AND NOTHING ELSE WILL NOT PROVIDE.....DOING THIS WILL BLOW YOUR TRANSFORMER - $$$$$$$$$$

    It will work with a 19" rack preamp as there is no real output wattage on them - hence the name Pre amp.

 

 

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