Marshall DLS40CR | Swap and Bias Tubes

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I recently posted a video comparing Marshall and Tung-Sol tubes, and today I wanted to share the steps of how to swap and bias the tubes in this amp for anyone who may need help.

0:00 - Intro
0:30 - Swapping the tubes
3:14 - Biasing the amp
5:47 - Final

Tube comparison video -

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Gear used:
Marshall DLS40CR -

Tools I use:
Pedal Board -
XLR to USB Cable -
Movo1 USB Lavalier Mic -
Adobe Premiere -
Lights -
Ernie Ball Guitar Cleaning Kit -
Music Nomad Neck Cradle -
Baroque String Action Gauge -
Ernie Ball String Winder -
Music Nomad F1 Oil -
Music Nomad FRINE Fret Polish -
Tissue Testers -