Cornell Plexi Pro 18/20 2x10 Combo Amplifier

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£1,580.00 (including VAT @ 20%)

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Estimated delivery to you: 20th December 2016
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1 year warranty and 30 day money back guarantee included

1 year warranty and 30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

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Product Ref: 81885

  • Equipped with 2x ECC83, 2 x EL84 & 1 x GZ34 for Classic Plexi Tones
  • Two Channels Both with Hi/Lo Inputs, Volume & Tone Control
  • Two 10 Inch Celestion Speakers for the Optimum Tone
  • Output 20 Watts Switchable Down to 5 Watts
  • Cornell-Cream Box Offers a Smooth Sound

Cornell Plexi Pro 18/20 2x10 Combo Amplifier

The Cornell Plexi Pro 18/20 2x10 Combo Amplifier is the perfect choice for guitarists wanting to achieve that definitive plexi sound of the sixties. Equipped with two channels with independent controls and Hi/Lo inputs, the Plexi Pro 18/20 delivers a versatile sound that cuts through any mix. Its delicate components have been hand assembled with perfect attention to detail to offer a high quality amp solution. This portable combo amp features a switchable output of 20 watts down to 5 watts when needed. As well as offering the perfect rock tone, the Plexi Pro 18/20 is housed in a plywood chassis, that features a green Tolex covering and an ergonomic handle for transportation.

Product Ref: 81885

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Buy on finance from £43.28 per month Finance from £43.28 per month  

  • 15.9%
  • £54.82
  • £1,973.52
Pay by Finance

To make it as easy as possible for you to get the gear you want, we offer a range of instant finance options. If you spend £250 or more online, you can choose to pay over 48, 36 or 24 months. The majority of decisions are given instantly, so you could get your new gear sooner than you thought!

Representative Example

To help you understand how our finance options work, the examples below are based on a total order value of £250:

Finance APR Deposit to Pay Payments Total Payable
Classic Credit 48 Months 14.9% 14.9% No Deposit 48 months: £6.83
Final payment: £6.83
No settlement fee
Classic Credit 36 Months 15.9% 15.9% No Deposit 36 months: £8.65
Final payment: £8.65
No settlement fee
Classic Credit 24 Months 18.9% 18.9% No Deposit 24 months: £12.41
Final payment: £12.41
No settlement fee

How to Apply

Applying for finance couldn't be easier - if your order totals £250 or more, simply proceed through the checkout as normal, then select Pay by Finance on the payment page, then click the orange APPLY FOR INSTANT FINANCE button. This will start your application with V12 Retail Finance, our finance partner, and completing this form should take approximately 10 minutes.

You should get an instant answer on whether your application has been successful, though in some rare cases V12 may need to look at the application in more detail.

Please note: This is only available on orders placed via the website and is not available in store or via phone currently.

Full Description

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An Iconic Rock Tone For the Modern Player

Plexi is the legendary nickname for the range of amplifiers produced in the mid 1960s, delivering a classic rock tone that has been popular ever since. The Plexi Pro 18/20 2x10 Combo Amplifier recreates this iconic tone by incorporating a full host of high quality components and circuitry. Whether you are in a rock band, or simply want to achieve that definitive plexi sound of the sixties, the Cornell range of Plexi amplifiers is the perfect choice for any guitarist.

A Unique Construction

Although the Cornell Plexi Pro 18/20 Combo takes its inspiration from these original Plexi amps, it also features modern improvements that reproduces this classic sound for the modern player. Cornell amplifiers are designed to avoid frequency loss caused by printed circuits, by incorporating point-to-point wiring throughout. Each feature is hand-mounted onto a component board which is sealed using a conformal coating to prevent noise and the reduction of component life caused by moisture penetration. Highly trained staff take time in hand-wiring each component, to ensure the highest standards of reliability and sound. A stainless steel chassis accommodates the specially-designed transformers, and chassis mounted valves, providing you with a durable unit. This combo is equipped with two 10 inch Celestion speakers for the optimum tone and projection.

Dual Channels

Along with its unique construction and simple design, the Cornell Plexi Pro 18/20 2 x 10 Combo Amplifier is equipped with two independent channels, each having its own volume and tone. The tone controls are designed to work over the entire frequency range of your guitar, allowing increased amounts of low and high frequency adjustment. Channel Two has a brighter tone than that of that of Channel One, and is ideal for playing solos or isolated guitar riffs. In addition, this portable combo is also equipped with a a switchable output, offering 5 watts to 20 watts depending on your situation.

Switchable Valve Rectification

The Plexi Pro is also equipped with an 18/20 switch which changes the rectifier from valve (18) to semiconductor (20). The valve rectifier gives a bluesy ‘sag’ in output, while the semiconductor rectifier has a faster response and less sag, improving transient attack. The Plexi Pro 18/20 Combo is made to ensure a very close reproduction of the full harmonic spectrum of your guitar’s pickups, resulting in a true, natural sound that will stand out in any application.


  • Made to the basic circuit of the PA20 Plexi panel which was produced in the 60s
  • Equipped with 2x ECC83, 2 x EL84 and one GZ34
  • 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
  • Two 10 inch Celestion speakers for the optimum tone
  • Class A Push pull Cathode bias
  • Output 20 watts switchable down to 5 watts
  • Switchable valve rectification changes the rectifier from valve (18) to semiconductor (20)
  • Cornell-Cream Box offers a smooth sound
  • Plywood housing covered in green Tolex covering
  • Art Deco 'Cornell' Logo
  • Ergonomic carry handle for portable use


  • Speaker:Two 10 inch Celestion Speakers
  • Valves: 2x ECC83 , 2 x EL84 and 1 x GZ34
  • Input Impedance: Hi - 2.2 MegOhm: Lo - 94 kOhm
  • Channel One Controls: Volume & Tone (With Hi & Lo inputs)
  • Channel Two Controls: Volume & Tone (With Hi & Lo inputs)
  • Output: High: 18/20 Watts, Low: 4.5/5 Watts
  • Cabinet: Plywood-shell and baffle, with Green covering


  • Height: 20"
  • Width: 24"
  • Depth: 9"
  • Weight: 20kg