Kruse Kontrol Amplification - Mesa Boogie Mods

Mesa Boogie Mods

MARK-III + MARK IV MOD

SINGLE RECTIFIER MOD

DUAL + TRIPLE RECTIFIER MOD

STILETTO MOD
(+ for other Mesa Models)

MARK V MOD

VARIAC POWER SCALE MOD:

Can be installed in ANY Mesa model !

Rect-O-Verb:

2:100 PowerAmp:

Triple Rectifier SOLO:

BIAS TRIMMER MOD:

for any Mesa amp model, which will allow you to install a wide variety of power tube types from any manufacturer.

Your amp can then be biased hot or cold to your preference.

No need to order tubes from Mesa anymore !

Bias Mod Example: Mesa Boogie MK-III

Below, the MESA BOOGIE MK-III BIAS MOD: 2 Bias Pots installed

1 bias pot for each tube pair. The customer wanted to have access to the pots from outside the chassis and we both found a good spot underneath the speaker jacks.
This amp can now run a great variety of tubes, different tube types, different brands. Plus, they can be biased HOT or COLD !

Bias Mod Example: Mesa 2:90 Power Amp

We installed 4 bias pots (1 for each tube pair) allowing use of different power tube types. This customer wanted 4xKT77 on side A and 4x6L6 on side B.
Bias Mod Example: Mark IV
Now any tube type and brand can be installed and biased.
Bias Mod Example: Single Rectifier/Rectoverb
Now any tube type and brand can be installed and biased.
Mesa Nomad 45: overhauled channel 1

Channel 1 had lost it's tone, no bottom end, dull sounding and tone controls not working effectively. After overhauling this channel it sounded great again and customer was thrilled !
EQ replaced in a Mesa/Boogie Mark IV
Original EQ had developed a loose contact with 2 of the sliders resulting in severe volume loss. We had Mesa make a brand new EQ.

Testimonial by Adrian Herrera - Argentine

Amazing bias mods over my Boogie MKIII and my 2:90 power amp. In my country there is no way to get Mesa tubes for replacement, Bias mod gave me the chance to experiment other tubes and a fear comparison runing them hotter or colder. Really cool and useful for recording different types of song styles.

Beside that, Jens Kruse gave me exceptional customer support, promptly answering all questions and mails, while I was modding my amps and afterwards. He worried about my amps' functionality for a long period of time.

I'm really satisfied with it, I'd suggest Jens Kruse to any person who wants to tweak his tone.

Thanks a lot

Adrian

Mesa Boogie Mods

Bias Mod Example: Mesa 2:90 Power Amp

Bias Mod Example: Mark IV

Bias Mod Example: Single Rectifier/Rectoverb

Mesa Nomad 45: overhauled channel 1

EQ replaced in a Mesa/Boogie Mark IV

Mesa Boogie Mods

Bias Mod Example: Mesa 2:90 Power Amp

Bias Mod Example:﻿ Mark IV

Bias Mod Example:﻿ Single Rectifier/Rectoverb

Mesa Nomad 45: overhauled channel 1﻿

EQ replaced in a Mesa/Boogie Mark IV

Bias Mod Example: Mark IV

Bias Mod Example: Single Rectifier/Rectoverb

Mesa Nomad 45: overhauled channel 1