Randall RT100H, RT503H, RT50H, RT50C OPERATION MANUAL

A M P L I F I E R S

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
1-847-949-0444, 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 1-847-949-0444, 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.

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Congratulations on the purchase of your new
RANDALL Amplifier!

We at Randall Amplification appreciate that you
chose our brand of guitar instrument amplifiers and
wish you years of great tone and enjoyable playing
time with our proven RT Series.

Please review the safety instructions below and be
aware that the documentation provided in this
manual references 120volt USA versions of the
models covered. Note that the POWER listed on the
back of the unit should be for your countries’ power

standard.

RT100H/RT503H

RT50H/RT50C

OPERATION MANUAL

www.randallamplification.com

1/4” Instrument input (1) - plug your guitar in here. Channel selector (2) - this button toggles thru the three channel options

Clean channel is clean but can be distorted by turning up the gain (3) to get a vintage tube overdrive that is great for blues and classic Rock’n’Roll. The bright switch (4) adds a bit more high end frequency to this channel.
The Bass (5) /Middle (6)/Treble(7) allow tailoring of the tone to suit your taste. Level control sends volume of this channel to output mater volume (20) - You can turn this all the up and use the gain knob (3) as channel
volume to get pristine clean sound.

O.D.1 overdrive channel- Level/Bass/Middle/Treble/Gain are the functions. Preamp gain can be achieved by cranking the Gain (9) knob, but a different flavor of overdrive gain can be attained by cranking the level (13) way
up and using the Gain knob for channel level. Set the Bass (10)/Middle(11)/Treble(12) knobs to taste.

O.D.2 overdrive channel works the same as OD1 but has slightly different gain & tone... It has more gain than anyone really needs, but we put more just to be sure --so you’ll be fine if your playing in a situation that you need
near-zero volume but still want searing distortion. (RT50/RT50C have only a Clean and OD2 channel)
Preamp gain can be achieved by cranking the Gain (14) knob, but a different flavor of overdrive gain can be attained by cranking the level (18) way up and using the Gain knob for channel level. Set the Bass (15)/Middle(16)/
Treble(17) knobs to taste.

The Reverb knob (19) adds true spring reverb to the signal of the entire amp no matter what channel you are on.... (Turn all the way to the right to go surfing)

The Master Volume (20) controls the output of the entire amp--- This function has a smooth taper and don’t be alarmed setting the master volume near maximum in high volume situations - the amp puts out a solid 50 or 100
watts. Set your individual channel gain and volumes to desired settings and manipulate overall volume with the master -OR-

You can turn Master Volume knob all the way up and use the amp as if no master volume existed by using each channel volume and gain as your total output volume.

Power switch (22) turns the amp on. The switch next to it--the Standby Switch (21) - the standby switch is there for a reason-- always wait 5-10 seconds between turning power switch on/off and standby switch.
ON= Power > wait > Standby
OFF= Standby > wait > Power

Mains fuse (23) varies in value by country voltage. Included power cable inserted here- this is different by regional voltage and distributor.

Footswitch cable input (25) -plug multipin footswitch cable in here.The included Footswitch for the RT100H/RT503 (RT3) has 3 buttons.... One button for each channel

The included Footswitch for the RT50H/RT50C (RT2) has also has 3 buttons.... but the first switches between clean and overdrive, the second turns the reverb on and off and the third switches the effects loop.

The Effects loop is to hook up external effects units- the Send function has a level switch (28) to adjust for pedal or studio style effects units’ input level... 1/4” send (26) to input, 1/4” output (27) to return.

Plug in the speaker cable to the speaker cabinet and speaker output of amplifier (RT50C is already hooked up to the included Speaker)-