Owner`s manual
BATTERY REPLACEMENT 
The MP-1 uses a 3-volt Lithium battery which maintains power for program storage while the 
MP-1 is unplugged from an AC supply. Expected battery life is 8-10 years. Should 
replacement be necessary, contact a qualified service technician. 
TUBE REPLACEMENT 
Your factory installed 12AX7/A tubes should last approximately two years. When tube 
replacement becomes necessary, we recommend that you use only ADA factory tested 
replacement tubes for the cleanest and quietest performance possible. These can be 
obtained from ADA or an authorized ADA dealer. Order ADA part number 800301 
for a matched pair. For more information call ADA customer service at (415) 632-1323. 
SPECIFICATIONS 
EQ 
 Bass 
± 18dB center @ 180Hz; Mid ± 12dB center @ 600Hz; Treble 
± 18dB center @ 1. 6kHz; Presence ± 12dB center @ 3kHz. 
TUBE COMPLEMENT 
 Four stages of gain using two low noise 12AX7 / A/7025 
MIDI 
 Channel 1-16, OMNI, OFF; Program change 1-128, MIDI Mapping, 
System Exclusive Bulk Dump and Load. 
CHORUS 
 Depth 0 (none) to 10:1 , Speed 0.1 sec. to 10 sec.
INPUT 
 1/4" phone jack, high impedance (I meg ohm) wide range, front and 
rear panel. 
OUTPUT 
 Two single ended 1/4" phone jacks, synthesized complementary 
stereo. 
EFFECT LOOP 
 Send-Single ended ¼" phone jack variable from instrument to line 
level. Max drive to send is + 19dBV. Receive-Single ended 1/4" phone 
jack. Max. signal level is +30dBV. Level-Provides 30dB of boost or cut 
to the send/receive signals. Interfaces with low level and line level 
effects. 
HEADPHONE 
 1/4" stereo phone jack. Drives headphones of 600 ohms or more. 
Level provides full mute to + 17dB above internal signal level. Max. 
output + 12dB. 
POWER 
 120 V AC, 50/60 Hz. 
POWER CONSUMPTION 
 12 watts. 
DIMENSIONS 
Depth-10.5", Width-19", Height-1.75" (1 rack space.) 
WEIGHT 
 6 lbs. 8 lbs shipping. 
OPTIONS 
 220VAC, 50/60 Hz. Extended 3 year warranty. 
OPTIONAL ACCESSORIES 
 MC-1 MIDI Foot Controller, Phantom power cable. 
APPLICATION NOTES 
PROGRAMMING 
We recommend programming your "cleanest/loudest guitar tone" program first. Get it as loud 
as you can without any distortion. You should then use this program as a volume reference 
while building the rest of your programs, in particular the MASTER GAIN parameter. From 
this reference you will be able to match or decrease the level of clean programs. Distortion 
programs can then be set louder, equal to, or less than your reference. 
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