"Hello, David SG Ferringer Here! Welcome to our website!." ~D.

Over 24 years of Specializing in Repair & Refurbishing Rockman Rockmodules

"Announcing Many Changes! A new web page, new location, new tech bench" ~D.

     New Stage 3 Refurb! Click here for details.

     New 2 Year Limited Warranty. Click here for details.

     New Payment Procedure.  Click here for details.

     New Policy for selling us units. Click here for details.

     New Company Policies. Click here for details.


Turnaround time is approximately 13 days, door to door.

What do we do?
We Refurbish Rockman Rockmodules with our Stage 3 Refurbishment Procedure.

What is a Stage 3 Refurb?
With over two decades of handling Rockmans, David has seen many issues. He has developed many techniques to restore them back to the way they were designed to sound....great! He calls this procedure a Stage 3 Refurb.  Click here for details.


$300 - Stage 3 Refurb Sustainor 100 or 200  

The Refurb also includes replacing the input jack wire with a high quality silver plated shielded coaxial wire.

We can locate the Input Jack in the front or the rear.
If no request is made, we will keep it where it was.






$200 - Sus 200 Option: Double IC Mod (Refurb Extra)

This is the SR&D Lead Level Update for the Sus 200 that speeds up the compressor release time. The result is subtle, but it helps keep fast notes from blurring.





        Available Now

$150 - Sus Option: Semi-Crunch Mod (Refurb Extra)

"Do you find yourself not using the Semi-Clean much? Is it because you are not inspired by the sparse harmonics? This Mod kicks it up a couple notches." ~D



        Available Now 

$200 - Sus Option: Vari-Crunch Mod (Refurb Extra)

This Mod gives you the ability to dial in your own amount of harmonics to the Semi-Clean Feature. The knob can be added to the front or rear.




        Available Now 

$400 - Sus Option: 4 Channel Mod.

This Mod allows you to access all 4 channels. It uses a stereo jack in place of the stock mono jack. We provide a Hosa YPP-117  mono to stereo Y splitter. You use two channels from either a MIDI Octopus or a 2 switch stomp. These 2 channels give 4 possible modes.




 $175 - Sus Option: Double Jack Mod. (Refurb Extra)
By adding a second input Jack, you always have the option of plugging into the front or rear. High quality silver plated wire used.

"You also can leave the plug in the rear and override it by plugging into the front." ~D






$175 - Stage 3 Refurb Distortion Generator

Includes SR&D "Lead Leveler" Update when applicable.





$200 - DG Option: FX Loop (Refurb Extra)

This mod adds a Send and a Return Jack to the back of the unit. Dave adds two factory type Rockman Jacks with high quality silver plated wire. For all DG Models.

"Many of us love the DG for its rich, thick tone. The FX Loop Mod takes it to the next level! It allows you to place an Equalizer in the "sweet spot," which is after the compression stage and before the distortion circuit. Highly recommended for tone tweakers!!!" ~D.


$250 - DG Option: Vari-Gain Mod (Refurb Extra)

This mod adds a Variable Gain Knob to the back of the unit. The Stock DG only has 3 setting for the Distortion Harmonics. This gives you the ability to adjust the amount of distortion from wide open to almost crystal clean and anywhere in between. You may be quite surprised how well the DG can make Semi-Crunch tones with this mod. This can be installed along with the FX Loop Mod however, the SN Sticker will be relocated.

"This mod is pure fun to play with. It is a blast to be able to Tame the Dragon!!!" ~D



$250 - Stage 3 Refurb Stereo Chorus

Includes SR&D Input Level Update - when applicable.



$175 - Stage 3 Refurb Smart Gate





$250 - Stage 3 Refurb Chorus / Delay


$300 C/D Option: Time Warp Mod  (Refurb Extra)

This Mod slows down the delay time considerably. This Mod disables the Short Delay button.

"This mod is one I developed for my own use a long time ago. It  converts the unit from a reverbish delay into (nearly) a virtual Stereo Echo."  ~D.

 $275 - Stage 3 Refurb Stereo Echo
Includes SR&D Output Impedance Update when applicable.



$175 - Stage 3 Refurb Guitar Compressor






$175 - Stage 3 Refurb Equalizer





$250 - Stage 3 Refurb Midi Octopus

"Since these units aren’t passing audio, many folks choose to ignore refurbing these until they fail. But, some failures are repairable, some are not”. ~D



$300 - Midi Octopus Option Blue Buttons (Refurb Extra)

This mod replaces the Grey "A" - "H" Buttons to Blue! Necessary? ...no. Cool? ...yea.




$175 - Stage 3 Refurb Acoustic Guitar Pedal

$175 - Stage 3 Refurb Ultimatum Distortion Generator





$175 - Stage 3 Refurb Wah-Wah Pedal





$175 - Stage 3 Refurb Wah-Vol Pedal




        Available Now  

$150 - Convert Rockmodule from 12VAC to 110VAC (Refurb Extra)



        Available Now  

$150 - Convert Rockmodule from 220VAC to 110VAC (Refurb Extra)





24 Rockman Rack Tray Screws

The Same Taper, Same Length and Same Color as the original SR&D supplied ones



$20 Pack of 24


6 Rockman Power Switch Cap - Black


$25 Pack of 6



::: Stomp Pedal Services :::

We also refurbish certain stomp pedals.
We also can install your Mod Kit.

Pricing depends on the specific pedal.
Repairs are possible for some units but not possible for units with surface mount components.

"Like many fellow guitarists, I have a soft spot for Pedals. My very first pedal was a Washburn SCX:7 Chorus.
It was too noisy to use and I traded it to a bud. 20 years later, I got it back! I recapped it and changed the Op Amp to a better quality one. It is no surprise the unit has a much lower noise level. This is typical with many pedals. Many have a good design and low quality parts. In turn, many websites have devoted much time in developing various improvements and mods.
I have installed kits from several sources and in short, I am impressed and see no reason to develop my own. If you find a kit and need it installed, I am happy to help." ~D




Until further notice, service is not available for the following units:


MIDI Pedal

Rockman 500 Amp

All Headphone Amps:
Bass Ace

Metal Ace
Guitar Ace






<< FREE Rockman Manuals - Click Here >>
Much thanks to Jark for putting together the Manual Site.
His hard work is appreciated by many!



::: Digitech MEQ Stage 3 Refurb Service :::

"Of all the EQs out there, the Digitech Mono 28 is my personal favorite. Why? 'cause the key to tone is Tweaking the Freqs baby. As with anything I put in my rig, I give it my "once over". And just like the Rockman line, there are issues that need addressed. So, I have developed a procedure that restores them to as new as possible. I now offer this to the public. ~D


$850 - Digitech MEQ Stage 3 Refurb

Applies to all 3 Digitech Models:
Digitech Dual 14
Digitech Mono 28
Digitech Quad 4
Among other steps, a Stage 3 Consists of:
A pre-work Operations Check.
Replacing of all Electrolytic Capacitors.
Selector Replacement. This updated selector is less prone to physical damage.
Memory Battery Conversion to 3 AAAs
Resoldering of key Solder Joints.
Multi-Point Inspection.
Repair each push button contact.
Ruggedization. "Road-Worthy" anti-vibration techniques.
A post-work Operations Check

Note: All Minor covered. Major repairs extra.

NOTE: We will NOT mod Dual 14 MEQS to PGE specs.
(I service ZZ Top's MEQs & currently, they are not running Rockman gear ~D)

David -
 "Let me take a moment to thank you for being such a HUGE help in the ZZ Top world. You have really made our lives here so much easier just knowing we have you in our back pocket on such a major part of Billy's live sound."

Thanks for your time,
 - Elwood Francis of ZZ Top



Billy Gibbons and David SG Ferringer 

(I service ZZ Top's MEQs & currently, they are not running Rockman gear ~D)

Ok, Ready to restore your sound? What's the next step?

Click the appropriate PayPal buttons. After checkout, you will get a page with our shipping address.

Print out your invoice and include it in the box. It is a good idea to hand-write your name on the outside of the shipping box.

Please Pad Well! If the module is not snugly packed, it can be damaged. And that is your fault, not the carrier.

"Signature Required" is not needed but, optional. If you need a "Signature Required" for return shipping, contact us.

We recommend USPS as, they are about 2 days faster and usually less expensive. You can send by any means you wish, but it will be returned USPS. You can print your shipping label at USPS.com Also, USPS provides free boxes and free pickup.

Unless you are selling them to us, do not send Racktrays.

Occasionally, we will encounter unexpected issues that are not covered under the cost of the Stage 3 Refurb. If so, we will  get your approval before proceeding.

After the work is completed, we will send you a tracking number.

If sending internationally, double boxing is a very good idea mandatory. From Canada? it
is optional, eh.

If sending us units to buy, email us front and rear pics of the ones we are buying. We will PayPal you once tested.

Thank You for your cooperation!!!


Contact us:

If you have one of the Blue Rockman Schematic Books, please contacts us.

Please Note:
We will not service any unit that has had previous work done elsewhere. If a unit is inadvertently sent, we will return it, untouched.
We do not offer a counseling service for self repairs.
Nor do we offer parts or documents for self repairs.

 We thank you all in advance for not asking us to violate any of our policies. We sincerely apologize for any inconveniences.



Does Rockman-Repair.com buy Rockmodules?
We recommend you sell your units on eBay or Reverb.
But to answer the question, Yes and No.
Yes in terms of, we do buy them outright.

No in terms of, we can not give you "full retail price" for them.
This point deserves details as, some are very offended that we cant pay full retail price. We need to make it clear, we aren't buying these to collect, this is a business and we have to operate under a business model. We offer a flat rate for Rockmodules and that rate is based on many points. We take the approximate retail value and subtract the approximate average of condition issues. (Refurb costs not withstanding) This number is then divided by a factor that is based on common wholesale percent and resale probability.

With all that said, here is what we offer for working units:
* = Sus 200
* = Sus 100
* = Stereo Echo
* = Stereo Chorus
* = Stereo Chorus/Delay
* = Distortion Generator
* = MIDI Octopus
* = Equalizer
* = Smart Gate
* = Guitar Compressor
* = Ultimatum Pedals
* Racktrays
*Seller Pays Shipping
Units must work and be complete.
Rockmodules that do not work, we give a flat $25.

NOTE - These only have value to us as Not Working /Parts units:
* = Any headphone Amps
* = XP100s
* = XPR
* = XPRa
* = MIDI Pedals
* = Acoustic Pedals
* = Volume Pedals
* = Wah Pedals
*Seller Pays Shipping
We recommend you sell your units on eBay or Reverb.
Email us a front and rear pic of all the units you are shipping to us to buy. It is common to send along units for us to buy while we are doing refurbs for you. Once we receive you unit/s we bench test them and then we send you a PayPal Payment. Email us if you have questions.


FAQ's Cont:

Who are you guys?
The name of this business is Rockman-Repair.com

Who all works for Rockman-Repair.com?
David SG Ferringer is the only Tech. "But I have / had several other helpers who lend a hand with things like web page updates, shipping & receiving, email screening, ect. ~D"

What do you do?
We Refurbish Rockmodules with our Stage 3 Refurbishment procedure.

What is a Stage 3 Refurb?
With over two decades of handling Rockmans, David has seen many issues. He has developed many techniques to restore them back to the way they were designed to sound....great! He calls this procedure a Stage 3 Refurb.
Among other steps, a Stage 3 Refurb consists of:

A pre-work Operations Check.“I check and evaluate every feature and function” ~D.
Multi-Point inspection to pinpoint and address issues and potential issues “
 Manufacturer Defects” ~D.
Addressing of Component, Dirt, Grounding and Solder Issues. “I consider a 30 year old Electrolytic Capacitor a potential issue” ~D.
A Post-Work Operations Check
. “I check every feature and function again” ~D.
A "Critical Ear" Sound Check. "This may be the fun part but, this is the time when very subtle issues can be found." ~D

What is covered under the cost of a Stage 3 Refurb?
The cost now includes new jack nuts. (unless you specify to keep on the original black ones)
The cost now includes return US shipping. (If not in the US, we will send you a shipping cost invoice when the work is completed)

All Minor repairs are covered. For instance: Solder Issues, Dirt Issues and many more.
"Many Major repairs that were not covered under the cost of a Stage 2 are now covered under the Stage 3." ~D.

What Major Repairs are covered?

Common Components. For instance: IC’s, Jacks, AC Cords, LEDs, Caps, AC Switches, Push Button Switches, Push Buttons, Resistors, ect that are readily available are covered.

What Major Repairs are NOT covered? Obsolete Components. For instance: Certain IC’s, Sliders, Control Switches, ect. that are NOT readily available are NOT covered.

What if I need an obsolete component?
We will give an estimate, if possible. "I have limited stock of some new, obsolete components" ~D.

What about Slider Pots and Control Switches? We will give an estimate, if possible. "I have limited stock of some good used components" ~D.

What's this I hear about a warranty?
David backs his work by a limited Two Year Warranty. NOTE: Warranty is VOIDED if his seals are tampered with.

Was there a Stage 1 and Stage 2 Refurb?
Yes. As more and more issues and potential issues arise over time, the proprietary check list (and bench time) advances.


FAQ's for David:

Did you service equipment from the members of Boston?

"Yes. I serviced Rockmans for David Victor, Kimberly Dahme, and for Tommy DeCarlo's band. As well as a couple Boston Tribute Bands. ~D

Do you have a phone number that we can call and talk to you?
"No. Communications need to be email as, I may need them for back reference. ~D."

Did you service equipment for ZZ Top?
"Yes. I service their Digitech Meq's.  As well as a couple ZZ Top Tribute Bands. ~D"

Can you get me backstage passes / tickets for ZZ Top?
"No, Sorry. ~D"

Do you play guitar?
"Well, I play WITH it...lol! I do mess around with song writing. There is a link below (the cassette) ~D"

What guitar do you play?
"Carvin has treated us southpaw players as equals and not circus freaks. I started playing a Carvin in 1988 and I still play Kiesel's today. (Carvin's original name was Kiesel & they have reverted) ~D"

Do you use guitar pedals?
"Yep. My current fav overdrive is an OCD pedal (clone PCB) that I modded with LED clipping. ~D"

What is the secret to good tone? / Can you nail the Boston tone? / Do I need a Rev 20 Sus, PGE2, Gold top Les Paul? (ect)
"I like to approach tone by two separate aspects: Distortion Characteristics and Frequency Characteristics. And if you don't have a programmable EQ like an MEQ Mono 28, you can spin your wheels for a long time. I suppose if there is a secret, its your EQ curve. A visual reference is kinda critical. I have been threatening to make a video showing my process. And, yea, I have a damn good Boston Tone if I do say so myself.  ~D"

I heard its B.S. to change Electrolytic Capacitors. What do you think?
"Listening to someone's opinion is just a guide. (even MINE!) I never take ANYTHING as a "hard fact" and it is quite foolish to do so. Caps are not an "absolute" in terms of condition. So, an exact time limit cannot be determined. Some 30 year old caps test fine...some do not. And that is where the confusion or controversy slips in. It is plausible, I have handled more Rockmodules than anyone else to date, unsubstantiated of course. In my 20 years of experience and private testing, I have not seen evidence that keeping the original caps is beneficial. In fact, my testing is showing the opposite. Capacitor manufacturer's document the service life of about 10 years. Since Rockmans are now about 30 years old, I have taken the position of agreeing with the manufacture's data. So yes, it is B.S. to change caps. (B.S. = Best Safeguard) ~D"

What does the SG stand for in your name?
"SG = Southpaw Guitar...haha no. I have two middle names, which is good to have a spare if one breaks down on stage. :P  ~D"

Do you sell Rockmodules?

"Sure, we have units for sale from time to time. ~D"

Why do you like Rockmodules so much?
"Because they are AWSOME. ~D"





"Yup, this is me in a silly Rock Music Video. Recorded with a rig that includes a Rockman Sustainor" ~D





David's Original Music DEMOS Page


Recorded with a Rockman of course!

The Rockman trademark is owned by Jim Dunlop Inc. ::: Rockman-Repair.com is not associated with the Dunlop Company or any other company in any fashion.
© Copyright, David SF Ferringer 2019 No part of this site, Rockman-Repair.com may be reproduced in whole or in part in any manner without the written permission of the copyright owner.
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