The custom-built Ceriatone 18W will ALWAYS have a special place in our hearts.  This design, and it’s many variants, served as the impetus for Ceriatone. In case you’ve never been on the Internet, the British Series 18W is an amplifier design that had a resurgence in popularity largely due to DIY communities.

The 18W standard features two channels, each with a tone control.  One channel has a dedicated tremolo circuit, while the other tends to have more available gain.  This circuit is capable of fantastic clean and crunch tones, and the cathode-biased EL84 section adds its characteristic harmonic swirl. True to the original design, the chassis is to be mounted in a combo cabinet. Like other Ceriatone amps, we have labored carefully to select the finest components to suit the design, and the 18W uses our specially designed, custom transformers for superior reliability, frequency response, and feel.

Current lead times are listed on the main page at

Note: PPIMV mounted on Front Panel will be either mounted in place of pilot lamp (Marshall styles) or a hole will be drilled (OTS styles).
          PPIMV mounted on Rear Panel will always be in place of a Speaker Output Jack.


Two Channels / 4 Inputs (High / Low)
18 watts
2 x EL84, 3 x 12AX7, 1 x EZ81
TAD Mustard Caps Standard

18 Watt Configuration Options: 

  • Chassis I - $829
    (Fully working chassis. Tubes not included.)
  • Chassis II - $937
    (Fully working chassis. Tubes included.)
  • Amp Head I - $1,079.50
    (Fully working chassis, installed in a head cabinet. Tubes not included.)
  • Amp Head II - $1,187.50
    (Fully working chassis, installed in a head cabinet. Tubes included.
  • 112 Combo Amp II - $1,361
    (Fully working chassis w/ tubes, installed in a 1x12 combo cabinet. Speaker not included.)

Main photo is for illustrative purposes only and advertised base pricing is for Chassis I without tubes. Photos may include options that are not included if you order the standard version of the amp or don't order all options available. We also may not offer all options available and/or shown in main illustrative photos. Photos are of products assembled by Ceriatone. We no longer sell kits. Black Tolex is standard on all amps unless otherwise stated in product description.

Ceriatone amps are custom made, 100% hand-built, point-to-point hand-wired amplifiers using the highest quality components and custom wound transformers. Each amp is thoroughly tested and burned in before it is shipped to you. Even with long lead times Ceriatone takes no shortcuts or makes any changes to their build standards in the production of their hand-built amps. This is Ceriatone quality.

Pricing shown on includes the shipping cost to the USA only. We only ship to the USA, Canada and Mexico. Shipping to Canada, Mexico, Puerto Rico and the US Virgin Islands will have additional shipping. We'll invoice the difference in shipping and it is due at the time the order is placed.

Paypal is our payment processor and you do not need a Paypal account to check out. They do offer 4 types of payments. Any Debit/Credit card with one click pay, PayPal 4-Pay, use your Paypal account, or use PayPal Financing (6/12/24 months) at checkout.

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18 Watt

  • $829.00

Available Options

Tags: marshall, 18 watt, 18w, plexi, jcm, jtm, ceriatone