USED - Cornell Studio 20 Head & Cab

As new condition, minimal home use

The Studio 20 has aptly been called as such as we believe they deserve a place in any serious recording studio.

Combining the famous 'Plexi' and 'AC30' amps into one amplifier across 2 channels.

Cornell's association with both of these amp designs is well known and over the years we have produced both models separately as the Plexi and Legacy range of amps.

We have now put them both into a 20 and 50 Watt Head and made some modifications and tweaks along the way.  Higher gain stages in both amps mean that singing lead tones are now easier to reach than ever before whist retaining the overall tone characteristics that make these amps so desirable.

Channel 1 provides all the AC30 you'll ever need and more!  With treble and bass controls (commonly known as a top boost circuit ) we have added a mid-boost switch taking you from 60's jangly pop through to the most majestic Queen-esque lead tones all from the flick of a switch.

Channel 2 is our "Plexi" design which is now a classic in its own right, with just volume and tone controls it has a rich mid presence which is synonymous with many iconic rock and blues players.

Extra features include an edge control that enhances the highs across both channels and switchable rectifier for volume "sag" that is inherent in the original classic amps.


  • 20 Watt class A Push/Pull Guitar Amplifier
  • Channel 1. High & low Inputs. Mid switch Volume. Treble. Bass.
  • Channel 2. High & low Inputs. Volume. Tone.
  • Both Channels.Edge.Power Full or Low. Diode or Valve Rectification. Stand by switch
  • VALVES ECC83X2, ECC81X1, EL84X2
  • CHANNELS Two channels can be cross linked
  • OUTPUT 20 Watts 4,8,16 ohms speaker outputs
  • SIZE H = 9.75" (250mm) W = 21" (535mm) D = 8.5" (220mm)
  • WEIGHT 16.5lbs (7.5kg)
  • CONSTRUCTION Components hand wired using turret tags and eyelets,
  • Stainless steel chassis
  • POTS 24mm Potentiometers
  • RESISTORS Carbon Composite, Metal Oxide, Virtuous
  • CAPACITORS Orange Drop, Unicorn, Samwha, Suntan
  • CABINET Tweed treated covering finished in black,
  • Rubber handle and brass saddles
Shipping Information

Our on-line store is open 24/7 and we ship Monday through Friday, excluding bank holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 2:00 p.m. GMT Orders in high demand will have an estimated production time listed on its product page and will ship once we havevtaken delivery. Please contact us for estimated delivery on out of stock items.

About Us

Musicstreet is a Family run independent guitar specialists.

We are not just a website......

we have a bricks and mortar store with 100's of electric guitars, acoustic guitars, bass guitars, amplifiers, effect pedals and other instruments and accessories. Backed by our 5-point Customer Service Guarantee our constant aim is to offer our customers the best service in our industry.