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Description

The Mesa Boogie Bass Strategy Eight-88 Retube Kits.

All of our Mesa Boogie Bass Strategy Eight-88 full Retube Kits are designed specifically for these amps. Every kit is configured to provide a specific sound/experience.

The default power tubes for all of our Mesa Boogie Bass Strategy Eight-88 kits are the JJ KT88’s. The JJ KT88’s are a higher power tube with lots of headroom, thunderous lows and thick/aggressive mids. However you can use the dropdown to select the JJ 6550’s. The JJ 6550 is a high power tube with more headroom than your standard EL34 or 6L6 variant. Compared to the KT88, it breaks up a little earlier and has very raw and open overdriven sound.

These amps are adjustable bias and no tools are needed. The KT88’s and 6550’s bias the same.

The Standard Retube Kit is very close to OEM. The kit includes one matched Octet of JJ KT88’s by default, two Balanced and Matched JJ ECC83S’s for the phase inverter and Driver (V2 – V3, closest to power tubes) and one Standard JJ ECC83S for V1.

The Gold Pin Retube Kit uses the JJ ECC83S Gold Pin variants to provide a smoother, creamier, and more singing overall sound. This option is less aggressive and has less “teeth” when driven hard. If you like a classic raunchy gritty overdriven tone, we recommend looking to the Standard or High Gain option. If sweet, open, and more refined is what you’re after this kit will do it. The kit includes one matched Octet of JJ KT88’s by default, two Balanced and Matched Gold Pin JJ ECC83S’s for the phase inverter and Driver (V2 – V3, closest to power tubes) and one Standard Gold Pin JJ ECC83S for V1.

The High Gain Retube Kit uses our hand picked high gain selected JJ ECC83S’s. If you’re looking for maximum crunch and grind this is where you want to be. Sonically this setup is very similar to our Standard Retube Kit but with a little extra gain on tap. The kit includes one matched Octet of JJ KT88’s by default, two Balanced and Matched High Gain JJ ECC83S’s for the phase inverter and Driver (V2 – V3, closest to power tubes) and one Standard High Gain JJ ECC83S for V1.

The ECC803S Option Retube Kit uses the Long Plate JJ ECC803S tubes. The JJ Long Plate ECC803S has a little lower gain with big thick mids and a little more sparkle in the highs. The kit includes one matched Octet of JJ KT88’s by default, two Balanced and Matched JJ ECC803S’s for the phase inverter and Driver (V2 – V3, closest to power tubes) and one Standard Long Plate JJ ECC803S for V1.