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Cornell Studio 18/20 Hand Wired Guitar Valve Head

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Cornell Studio 18/20 Hand Wired Guitar Valve Head


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Here at The Guitar Store Southampton we are proud to stock these British hand wired professional amplifier by Denis Cornell.

Denis Cornell is a modern day amp Guru who reflects on the past only in as much as may serve his forward thinking and uncompromising ideals. If no-compromise amplification with tone beyond compare sounds appealing, then be assured that promising to create and capture tonal perfection is entirely within Denis Cornells capabilities. Denis has intimate design and service knowledge of Vox amplification,- he proudly assisted Tom Jennings with a company relaunch - and Fender Products too: As a freelance Denis has sorted complex technical problems and helped Fender Europe with new designs. Denis has been called upon to help major companies grow and launch their products. Denis had a key role in Arbiter Groups London facility in designing products for them.

Cornell has built repaired, serviced and custom designed amplification systems for many years. ( Sound City's groundbreaking MKIII / IV amp's were co-designed by by Denis along with his long time friend and senior development engineer, Brian Hucker) Over time Denis has assisted most of today's big brand amp manufacturers design and come to fruition all there iconic amps that have made their companies great! But all this is academic in terms.

Denis Helps anyone who needs him with no ego he is truly a legend to all. He is the Guru of Amplification, He is Denis Cornell.

The Cornell Plexi Studio Pro 18/20 Head Amplifier is manufactured to the same basic circuit of the PA20 Plexi panel which was produced in the 60s and delivers a full range of 'Plexi' tones which are perfect for guitarists seeking a classic rock tone. This portable amp head features two independent channels, both with Hi/Lo inputs, Volume and Tone control. Other features include a 20 watt output which is switchable down to 5 watts depending on your requirements, and a Cornell-Cream Box for a smooth sound. The 18/20 head is constructed from plywood, covered in green Tolex and features a carry handle for portable use.


  • - Made to the basic circuit of the PA20 Plexi panel which was produced in the 60s.
  • - Two independent channels ,both with Hi/Lo inputs, Volume and Tone control
  • - Delivers a full range of 'Plexi' tones which are perfect for playing rock music
  • - Switchable valve rectification
  • - Output 20 watts switchable down to 5 watts
  • - Cornell-Cream Box offers a smooth sound
  • - Plywood housing covered in green Tolex covering
  • - Art Deco 'Cornell' Logo
  • - Ergonomic carry handle for portable use


  • - Valve Complement: ECC83 x2, EL84 x2, GZ34 x1
  • - Input Impedance: Hi - 2.2 MegOhm: Lo - 94 kOhm
  • - Channel 1 Controls: Volume & Tone (With Hi & Lo inputs)
  • - Channel 2 Controls: Volume & Tone (With Hi & Lo inputs)
  • - Output: High: 18/20 Watts, Low: 4.5/5 Watts
  • - Cabinet: Plywood & plywood baffle. Green covering

High quality cabinet work, down to the dressed brass screws, with classic lacquered vintage tweed covering, brown grille cloth and vintage style leather carrying handle. Artists who have used Cornell include Eric Clapton, Gary Moore, Hank Marvin, Wilko Johnson, Andy Fairweather Low & Robin Trower, to name a few.

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