Hand Crafted Guitar Amplifiers for Discriminating Players

Standard Line
Custom Shop
Ordering Your Revelation Amp

Contact Revelation

Frequently Asked Questions

The Revelation 72



Pricing information on the ordering page
  • 1x12 combo or head
    • 1x12 combo approx. 20.5" wide, 19.5" tall, 11.5" deep and 48 lb.
  • 4x cathode-biased EL84 power stage
  • Controls
    • Normal Volume, Tone
    • Overdrive Volume, Tone, Drive, Response, Voice switch
    • Global Cut
  • Normal channel
    • 9 o'clock:  clean, shimmery and chimey
    • 12 o'clock:  jangly with a bit of hair on it, crunches when you dig in
    • cranked:  classic overdrive to die for
  • Overdrive channel
    • Refined controls give tone territory from just a touch of drive all the way to screaming saturated lead tones at any moderate to extreme volume level
    • Cranked-amp distortion tone at conversation levels
  • Ultimately touch-responsive, sensitive and expressive
  • Built with the gigging guitarist in mind
SOUNDS
all clips recorded with the guitar plugged straight into the amp with no pedals

Noodling Clips
These clips were done with a 72 head into an Avatar 2x12 cabinet with an Eminence Red Fang and an Eminence Wizard speaker.  Both speakers were mic'd and run in sereo for the final mix.  The guitar is an Ibanez TM71 semi-hollowbody with DiMarzio PAF in the bridge and an old Burny PAF in the neck.  I just plugged in and played the amp in one continuous take and then edited it down.

One thing to note is that I did not change the gain levels between these clips or do any normalizing or that kind of thing.  So the levels can easily be compared from one to another, these indicate how loud, comparatively, the amp was under each of these conditions.  This was mostly at full on club gig levels.
72 Noodling 1Normal channel, volume 12:00, tone 12:00, cut off
72 Noodling 2Normal channel, volume 9:00, tone 9:00, cut off
72 Noodling 3Normal channel, volume max, tone 12:00, cut off
72 Noodling 4Normal channel, volume max, tone 12:00, cut off
72 Noodling 5Normal channel, volume max, tone 12:00, cut off, changing volume controls and pickups on the guitar
72 Noodling 6Normal channel, volume 9:00, tone 3:00, cut 3:00
72 Noodling 7 - Overdrive channel, drive 12:00, response 12:00, tone 12:00, volume 9:00, cut off
72 Noodling 8 - Overdrive channel, blackface bluesy kind of tone
72 Noodling 9 - Overdrive channel, hotter blues tone
72 Noodling 10 - Overdrive channel, chimey rhythm tone
72 Noodling 11 - Overdrive channel, cleanish tone
72 Noodling 12 - Overdrive channel, more gainy, scoopy lead tone

            Studio Clips
            
These clips were recorded in the Olive Tree Studio and feature a Revelation 72 combo in the mix with other instruments.
72 Blues - Fender Telecaster, rhythm track is the 72 Normal channel, lead track is the 72 Overdrive channel
Shure SM58 into Yamaha PM-1000 channel preamp, no effects on the guitar tracks
A little bit of Lexicon reverb on the whole mix
72 Clean - clean rhythm tones from the 72 Normal channel and a Fender Telecaster
Shure SM58 into Yamaha PM-1000 channel preamp, amp recorded dry
Guitar tracks have some mixdown delay which you can hear ringing at the end of the clip.
A little bit of Lexicon reverb on the whole mix
72 Leads - the above clean tracks, plus lead guitar stuff with the 72 Overdrive channel and varying guitars (Telecaster, humbucker guitar)
Shure SM58 into Yamaha PM-1000 channel preamp, amp recorded dry
Rhythm/clean tracks have some mixdown delay
No effects on the lead tracks
A little bit of Lexicon reverb on the whole mix

The Revelation 72 Player's Manual (pdf)

The 72 Concept

This amp was created with a very simple set of goals in mind:  light enough to carry into the gig in one hand, loud enough to play with any reasonable band, with a shimmery and chimey clean tone and a cranked-amp overdrive tone both on tap at the same volume level at the touch of a foot switch. This turned out to be quite a challenge! After a few design design changes and a lot of failures and near-misses, I finally arrived at the 72.



The Normal Channel

It all begins with a good Normal channel.  The Normal channel of the 72 is a simple, vintage-style channel with low component count and very minimal tone shaping.  The character of the guitar shines through.  It's very sensitive, responsive, and makes a heavenly clean tone.  If you have ear plugs handy, crank it all the way and look out!  This would be a world-class boutique amplifier with only this one channel.

The Overdrive Channel

The 72's Overdrive channel is like the normal channel "on steriods".  There is a whole extra tube crammed into the Overdrive channel, fine-tuned to give more saturated, vibey lead tones at moderate volume levels.  But don't get this confused with your typical buzzy preamp-overdrive master-volume amps you may have already experienced. The 72 is a whole different animal.  The magic is in the combination of "Drive", "Response" and "Volume" controls.  The Volume control sets the channel's overall volume much like a master volume in a master-volume amp.  The Drive control works like an overdrive knob.  In the middle is the Response control which fine-tunes the way the last stage of the preamp is driven.  Turn it up and you get power-amp-style distortion right out of the preamp.  Turn it down when you have the Volume cranked and you let the power amp carry the load.

The flexibility of the Overdrive channel allows it to cover a lot of range.  Turn the Drive knob down, turn the Response knob to 12 o'clock, and turn up the Volume knob and you get right into bluesy overdrive territory that will give blackface amp owners some serious buyer's remorse.  Turn the Drive knob up, crank the Response and turn the Volume up halfway and you are right into a singing, vibey and chewy overdrive tone that gold-panel amps dream of.

The Cut Control

The Cut control is a staple of a certain line of British amps that behaves differently from a normal tone control. The 72 amp's Cut control is designed to interact with the tone controls to give you tonal range to cover the ground from American mid-scooped tones (Cut control down, Tone controls up), to British midrange-in-your-face tones (Cut control up, Tone controls down).  The cut control can be defeated by turning it all the way down until it "clicks".


The 72 is completely hand-wired and built by hand, one unit at a time.  

A versatile amplifier for the gigging guitarist with no-compromise tone at any volume level.