50 years ago, Jimmy Page used a 1959 Telecaster and Supro Coronado amplifier to record the groundbreaking sounds on Led Zeppelin I . Details of the guitar have been known since the yardbirds, as the guitar was used for live dates and was photographed many times. However, the amplifier remained shrouded in mystery until now…
In 2017, Jimmy decided that it was time to share his secret so that others could enjoy the unique amplifier that he used to shape the future of Rock and Roll.
Jimmy Page, Perry Margouleff and Mitch Colby spent two years working to create a modern version of this very special amplifier. Painstaking care was taken to recreate the sound and feel, while the cosmetics were updated to add our own personal touch.
Only 50 Sundragon Limited Edition Amplifiers will be built in New York by Mitch Colby, with carefully selected components to ensure that we recreate the distinctive tone and feel of Jimmy’s original amplifier. Many new old stock parts were sourced for the product and transformers were handmade by the original manufacturer. We also have used new old stock, vintage tubes that match the ones in Jimmy’s amplifier.
Amplifier Operation -
Sundragon is a relatively simple amplifier to operate. We recommend that you red this manual in its entirety before you plus it in so that you become familiar with its features and operate the amp in a safe manner.
Sundragon has two channels. Each channel has two inputs and a Volume control. There is a Tone control that works on both channels. Channel 2 has Tremolo with Speed and Intensity controls. The Speed Control is also the On/Off switch for the Tremolo. The Tremolo can also be activated by the footswitch which has been included with your amplifier. The control panel also includes a footswitch jack for the Tremolo, On/Off/Standby switch, the Mains Fuse holder and a Power indicator lamp.
While Sundragon has nice clean tones, its forte is overdrive. Because of the unique circuit configuration, the amp starts to overdrive at relatively low volumes. We recommend experimenting with all four inputs and note that the tone control is effective on both channels. You will find a wide variety of sounds available through experimentation.
Channel 1 -
Looking from the back of the amplifier, Channel 1 is on the left hand side. It has two inputs which are voiced differently. The left input called “Treble” has less bass and is somewhat “scooped” The right inputs called “Regular” is fuller sounding and because of that, appears to have more drive. Plug into either one and turn the Volume and Tone controls to your preferred settings.
Channel 2 -
Channel 2 also has two inputs. They are also labeled “Treble” and “Regular”. The regular input has more bass and more apparent drive.
Channel 2 features Tremolo. The Tremolo works with or without the foot switch. Just turn the Speed control clockwise until you hear the click. You can also use the footswitch that in included with the amp or any single footswitch with a 1/4” plug and no LED. The controls on the Tremolo work backwards. (For example, turn the Speed clockwise and it gets slower. Turn the Intensity clockwise and the Tremolo gets weaker - just like Jimmy’s)
Tone Control -
The Tone Control is quite effective. Turning it up (clockwise) adds high frequencies and because it is so effective, it also adds gain and more overdrive.
Note: Because Sundragon has 2 inputs per channel that are voiced differently, the inputs are “open”. The result is that when nothing is plugged into the amp, you will hear background noise when you turn up either Volume control. While this is not the case on some amplifiers, this is normal for Sundragon.
The fuse in the top panel of the preamp is a T2A slo bro fuse. If the fuse blows always replace it with a fuse of the same type and rating. Note: A fuse usually blows when there is something wrong. If you replace a fuse and it blows again, bring the amp to a qualified amp technician. Always use a fuse of the correct value and do not do anything that will bypass the fuse or you may cause damage to the amplifier
Sundragon Tubes -
Preamp - Three Mullard 12AX7 (ECC83) : Mullard made tubes for many different companies. It is likely that one or all three of the preamps in your Sundragon are labeled a different brand but rest assured they are in fact manufactured by Mullard.
Power Amp - Two GE 6L6GC: These are GE labeled. One Mullard GZ34 (5AR4) : Like the 12AX7s, the GZ34 in your Sundragon might not say Mullard, but it is a Mullard-manufactured tube.
Looking from the back of the amp, the GZ34 goes on the right next to the power transformer. The two 6L6GCs fo to the left.
What makes Jimmy’s original Supro Coronado sonically unique are the modifications that were done to it after it was damaged from falling out of an equipment truck. These details include:
Change from two 10” speakers to a single Oxford 12” Alnico magnet speaker reconed with a British style 8 ohm cone.
New baffle and grill cloth.
Small but significant circuit changes that alter the feel of the amp.
Before finalizing the Sundragon we analyzed every detail of Jimmy’s original amp. We incorporated the important circuit detail including NOS (New Old Stock) parts, transformers hand wound by the original manufacturer plus NOS tubes manufactured by Mullard and GE. While the speaker manufacturer who made the cone in Jimmy’s Oxford speaker is out of business we selected a modern speaker that captures the essence of the speaker in Jimmy’s amp. It is the Jensen P12Q with an Alnico magnet.
Because of the uniqueness of Jimmy’s iconic amp, and the work done on Sundragon, there is no other amp that can duplicate its singular aggressive sonic quality plus the interaction between the guitar and amp.
"At the time I recorded Led Zeppelin I, I used a Tone Bender (a form of overdrive originally called a fuzz box) and Wah Wah pedal to expand the palette of sounds from my amplifier. Today, there is a wide variety of pedals available and I would encourage you to experiment and create new sounds with your Sundragon Amplifier" - Jimmy Page