This is Ceriatone's Custom built tribute to this 50-watt version of the Hiwatt (504 OL) boutique guitar amp., Hey What?! 504 OL has more gain and more responsive Bass and Treble controls.

It's the same basic amp as the 504 but has an extra gain stage.

Powerful, ballsy, with an in your face attitude of rock and roll supremacy. This is it!

PPIMV available as an option can be installed on Rear Panel only.

Two Channels (Normal & Bright / 4 Inputs (High / Low)
50 watts
EL34 x 2, 12AX7 x 3, 12AT7 x1
Impedance: 4 / 8 /16 Ω
Individual Channel Volume
Extra Gain Stage
3-Band EQ

Hey What?! 504OL Configuration Options:

  • Chassis I - $758
    (Fully working chassis. Tubes not included. No cabinet.)
  • Chassis II - $830
    (Fully working chassis. Tubes included. No cabinet.)
  • Amp Head I - $982
    (Fully working chassis installed in a head cabinet. Tubes not included.)
  • Amp Head II - $1,054
    (Fully working chassis installed in a head cabinet. Tubes included.)

Main photo is for illustrative purposes only and pricing is for Chassis I. 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. You must order all kits direct from Ceriatone Malaysia. Ordering options for your amp may add several days to the build/lead time.

Ceriatone amps are Custom-built, hand made, hand wired amps, built to order. There is meticulous attention to detail that is second to none, and no shortcuts are taken. Each amp is 100% hand built, hand wired point to point, and then is thoroughly tested and burned in before it is shipped to you. For this reason it takes approx. 6-8 weeks for your amp to be built and shipped. Options can add 1-2 weeks to the "standard" build time.

Prices 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 time the order is placed.

Note: We ONLY ship to PayPal verified addresses if paying via PayPal. No exceptions.

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HeyWhat?! 504 OL

  • $758.00

Available Options

Tags: ceriatone, hiwatt, hey what, 504, OL, 504OL