Marshall 900 2100 SL-X Series Custom Retube Kit

Custom Kit

Want it your way? The "Custom Kit" is just that, you get to choose all of your preamp tubes! We give you all the positions and you fill them! We left the quantity fields open so that spares or multiple tubes could be ordered to experiment with. The default power tubes are the JJ E34L's however you can choose from EL34II's, EL34's, E34L's, 6CA7's or KT77's. If your 2500 series SL-X Marshall came with 6L6GC's then we recommend that you use the JJ 6L6GC's or 5881's unless your amp has been modded to use EL34's (Screen grid resistors & bias resistor swap). Please click on the "More Details" button to get an in-depth description of the tonal differences.

Custom Kit

Power-Tubes

If your SL-X came with EL34's then you can run matched pairs of the E34L's, EL34II's, KT77's, 6CA7's or EL34's with the stock bias circuit. If your SL-X came with 6L6GC's then we recommend that you use the JJ 6L6GC's or JJ 5881's unless your amp has been modded to use EL34's (Screen grid resistors & bias resistor swap). Please see click on the "More Details" button to get an in-depth description of the tonal differences.

E34L Matched Quad -

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EL34II Matched Quad -

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6CA7 Matched Quad -

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KT77 Matched Quad -

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EL34 Matched Quad -

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6L6GC Matched Quad -

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5881 Matched Quad -

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The V3 position is an additional gain stage. Here you can again increase or decrease the gain, or even smooth it out with a Gold Pin tube. The only tubes we stay away from in V3 are the long plate ECC803S's because they can feed back in this position. Please see click on the "More Details" button to get an in-depth description of the tonal differences.

ECC83S Standard -

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ECC83S High Gain -

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ECC83S Gold Pin -

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ECC83 MG Standard -

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ECC83 MG Gold Pin -

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5751 Standard -

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5751 Gold Pin -

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ECC81 (12AT7) Standard -

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ECC81 Gold Pin -

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EuroDamper Tube Damper Rings

If your amp is the combo version and you have chosen to use the JJ 6L6GC's then please let us know in the comments section and we will ship your kit with the special Double Mica 6L6GC’s at no extra charge which will greatly reduce any tube rattle. JJ Electronic started building us a proprietary version of their 6L6GC (the 6L6GC-DM) in 2005 with extra layers of mica. This reinforces the plate structure and all but eliminates tube rattle symptoms. For all other tubes such as EL34’s, KT77's, 6CA7's and E34L’s, we recommend using our EuroDamper rings. These will greatly decrease tube rattle.

EuroDamper Large - Set of Four -

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Bias Probes and Multimeters

These are all adjustable bias amps and all you need to check and adjust the bias is a bias probe and a Multimeter, or our all-in-one Eurotubes "Pro One" bias probe that reads both the plate current and the plate voltage simultaneously.

Eurotubes “Pro One” Bias Probe for octal power tubes -

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Eurotubes Octal Bias Probe -

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Cables-

These are made in-house from USA made real 10 Gauge oxygen free copper cable and high quality heavy duty 1/4" jacks. These cables leave no frequency unheard!

Eurotubes 10 Gauge 3 foot Speaker Cable -

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Eurotubes 10 Gauge 6 foot Speaker Cable -

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Configure: Marshall 900 2100 SL-X Series Custom Retube Kit