CAUTION: REPLACE WITH SAME TYPE FUSE AND RATING ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE ET CALIBRE
ACOUSTIC MASTER
FUSE T 400mA
230V 50Hz 0.5A
Yorkville
LR 21877
120VAC 60Hz 1.0A
DESIGNED & MANUFACTURED BY YORKVILLE SOUND � Toronto, CANADA
The Acoustic Master
Your Yorkville AM50 acoustic guitar amplifier was designed to reproduce sound from an acoustic guitar as realistically as possible. The compact size and light weight of the AM50 makes it easy to carry and use anywhere. The amplifier accepts the output from the active or passive pickups of your acoustic guitaar, a microphone, or even Line-Level inputs. Other features include a spring reverb with level control, a balanced Line out and a Sweepable Notch Filter. The versatility and response of the AM50 will make it a pleasure to play for years to come. The Yorkville AM50 has 2 input channels. Both channels can be use simultaneously. For example an acoustic guitar can be used on channel 1 while a microphone, a keyboard, or even another acoustic guitar (using an active pick-up) can be in use on channel 2.
Power
The green LED located under the power switch will illuminate when the unit is turned on.
Channel 1
The input to channel 1 is unbalanced with an input impedance of 1M-Ohm. It can accept either passive or active pick-ups (piezo/coil) Controls include Volume, Low and High Equalization, as well as a Sweepable Notch Filter. The filter eliminates most feedback generated by guitar and/or amplifier, and also can be used to help shape the amplifier�s response to the individual�s taste. The Notch Filter can be switched on/off. The clip LED can be used to gauge input level to avoid audible clipping.
Tone Controls
The Channel 1 Tone Controls help you access the wide range of versatile sonic possibilities of the AM50 (these controls DO NOT affect Channel 2). Rotate the LOW Control to affect the Low Frequency information (the bass). Rotate the HIGH Control to affect the High Frequency information (the treble).
Notch Filter Control
The Sweepable Notch Filter control is located in the channel 1 block and is used to eliminate feedback that is caused by the guitar being too close to the amp at higher power. When feedback does occur make sure that the notch filter switch is pushed in, rotate the notch control slowly until the feedback is eliminated. Please note, if feedback noise occurs when you are in close proximity to the guitar amp, the notch filter may not help, therefore either reduce power or move the guitar further away from amplifier.
