Randall RD40C Operation Manual

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website at :

www.randallamplification.com

Randall Warranty

Randall Amplifiers, a Division of U.S. Music Corporation warrants the 

product you have purchased to be free of defects in materials and workmanship 

in normal use for a period of two (2) years from the date of original purchase. 

This warranty shall run to the original purchaser when purchased from an 

Authorized Randall Dealer. The manufacturer warrants speakers for a period 

of (1) years. The manufacturer warrants tubes for a period of (90) days. 

Defective parts found during the applicable warranty period with proof of 

purchase will be replaced or repaired without charge if the complete product is 

returned to US Music Corp or any Authorized Randall Service Center within 

the U.S.A. Randall reserves the right to use materials readily available at the 

time of the repair. All Warranty service requires Proof of Purchase (sales 

receipt) to be presented at time of service request. Any repair or service 

performed by any person of entity other than an Authorized Service Center is 

not covered by this limited warranty. The customer pays transportation to and 

from Randall factory service or any Randall Authorized Service Center. Rental 

stock is warranted for (1) year from date of invoice to the Authorized dealer. 

Warranty on rental units is not transferable.

 What is covered against manufacturing defects

Parts and Labor to correct any defect in materials used and any defect 

attributable to workmanship.

 What is not covered:

Shipping Damage. Report damage upon receipt of item to the carrier (i.e. 

UPS). Freight carrier must be notified upon receipt of items to insure freight 

damage claim resolution. Shipping damage not filed with carriers within (48) 

hrs upon receipt will not be covered under warranty. Report any shipping 

damage within (48) hrs of receipt to the Randall Customer Service Dept at 

1-800-877-6863, ext. 5120. Keep all original documents and packing materials 

to insure freight damage claim resolution. Merchandise that has been modified 

after original shipment from the Randall factory. Products whose serial 

numbers have been altered or removed. Exterior normal wear and tear damage 

to the finish due to misuse, operation outside the specified ratings, neglect or 

accident. Warranty claims by anyone other than the original purchaser. Randall 

is not responsible for any items left in protective covers or cases, (We strongly 

advise that all personal items such as chords, cables, tuners, etc… be 

removed!) freight charges to and from the factory or an Authorized service 

center on customer owned goods, any and all charges incurred from priority 

service requests (Rush Service) or priority shipping for replacement parts. Any 

and all charges if no problem is found.

Return Authorization

All items being returned for any reason must have a Return Authorization 

number. This RA# must be placed on the outside of the carton of the item being  

returned or the carton will be refused upon delivery. Please call the customer 

service department at 1-800-877-6863, ext. 5120, for the return authorization 

number. Dealer stock items will be returned to the dealer freight prepaid.

An Authorized Warranty Service Center must perform any and all field 

warranty service work. Customer will not pay for parts and/or labor provided 

the problem found is within warranty guidelines. Proof of purchase must be 

provided at the time of service request. Transportation charges to and from the 

Authorized Warranty Service Center are the responsibility of the customer. 

Rush service charges and special freight charges for required parts are not 

covered under warranty and are also the responsibility of the customer. If a 

unit is not easily transported to an authorized service center, the customer is 

responsible for technician travel charges. Any charges for labor or processing 

when no problem is found are also not covered under warranty. Any charges 

incurred for work performed by an unauthorized service center are the 

responsibility of the customer.  

Warranty terms may very per country, check warranty 

terms with local Distributor or at point of purchase.

A M P L I F I E R S

RM50/RM80

M O D U L A R T U B E C O M B O S

O W N E R S

M A N U A L

OPERATION

MANUAL

Model:

RD40C

A M P L I F I E R S

RM50/RM80

M O D U L A R T U B E C O M B O S

O W N E R S

M A N U A L

DIAVLO RD40C 

(4) 12AX7A  (2) 6L6 

2 Channels - Clean and Overdrive

Switchable tube driven boost for both 

channels 

Spring Reverb

Serial effects loop

RFT2C Footswitch switches Channel 

and Boost  (included)

Custom Voiced “DIAVLO” RD12508 

50w Speaker

RD40C - 40w 1x12 Combo