SOLD - Mesa Boogie .50 Caliber+ 2 Channel Head 1989

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Who buys vintage guitar amps?  We do! 

Call 530-570-1525 or email to sell your vintage guitar amp, guitar, bass, amplifier, etc - one piece or a collection!  We are always ready to buy instruments, amps and effects from Fender, Gibson, Martin, Epiphone, Rickenbacker, Gretsch, Marshall, Vox and just about anything else related to musical instruments.   You can also click here for more info on selling us vintage instruments, amps, parts, etc.  

No Sales Tax For Customers Outside Of California.

This amp was acquired from our friend Larry Cragg, the well-known Northern California guitar tech to everyone in the Bay Area.

Larry bought a mountain of amps over the years for his company, Studio Instrument Rentals.  This amp was bought in the latter stages of this effort and was never rented.  It is basically like new.

If you know Mesa you see that the chassis was signed off by Mike B in 1989.  

A flexible amp that sits in a sweet spot as far as output power goes.  Footswitchable lead channel, however the footswitch is not included.

The amp is super clean.  Original Mesa Boogie tubes included!

Shipping policy:

Shipments will require signature on delivery, no exceptions.  If there is damage, the buyer must retain all packing materials intact and picture them immediately and send them to  Less than 1% of our shipments are damaged in transit, and we are committed to making sure your item arrives safely, but we are taking these additional measures to make sure you are happy with your purchase.   

  • Case/Cover?: No
  • Color: Black
  • Dimensions: 23.25" x 10" x 9"
  • Weight: 29lbs 3.4oz
  • Watts: 50 Watts
  • Date: March 14 1989
  • Where date is noted: Written In Chassis
  • Power Transformer brand and/or codes: N/A
  • Output Transformer brand and/or codes: 562051  EIA606-907
  • Reverb Transformer brand and/or codes: Mesa 550185  EIA606  --646
  • Extension Speaker Out? Yes
  • FX Loop?: Yes
  • Reverb or other effects?: Reverb
  • Power tubes: 2 x 6L6 GC Tested
  • Power Tube Brand: Mesa
  • Preamp Tubes: 4 x 12AX7 1 x 12AT7
  • Preamp Tube Brand: Mesa & Phillips
  • Filter Caps: Original
  • Pedal?: No
  • Pots, codes: Original 137 8730
  • Tolex: Original
  • Grille: Original
  • Knobs: Original
  • Handle: Original
  • Power cord: Original
  • Notes: 

We Pack with Care

We pack items extremely well & utilize special vintage instrument insurance in case there is a damage claim.

Shipping Services

We prefer UPS based on their performance before & during the pandemic. USPS is usually our choice for international shipping.

Out the Door Quickly!

We turn your orders around quickly so you aren't fiending for your items for long. Most orders depart within 24 to 48 hours.