Seven amplifiers are modeled in the Micro Cube: Roland's COSM uses the advantages of multiple modeling methods and succeeds in accurately emulating existing sounds, as well as producing sounds new sounds. Sound modeling, the latest DSP technology, "virtually" reconstructs these objects. The material and configuration of the instrument, the electric/magnetic amplifying system, the air and the reverberation of the room all affect the final sound. Once a musical instrument generates sound vibrations, it reaches the human ear through various mediating objects, each of which significantly affects the sound. COSM is composite object sound modeling, Roland's proprietary amplifier modeling technology. Weighing in at just a few pounds, the Micro Cube comes with six digital signal processing (DSP) effects (chorus, flanger, phaser, tremolo and separate delay/reverb) and COSMĀ® amp modeling. It's an ultra-compact package that runs on batteries or from a 9 volt wall-transformer power supply otherwise used for effect pedals. If you're not familiar with the Micro Cube, it's the small fry in Roland's line of cube amplifiers. So on a pretty regular basis we need to replace the input jacks on all of our amps, including the Micro Cubes. And let's face it, kids are just not always as gentle on equipment as they could be. With many lessons a days, and students plugging-in and out all day long, the input jacks on our amps take a beating. As we've mentioned before, when we're not writing for Guitar Kit Builder we operate rock music schools where we use the Micro Cubes in some lesson rooms. In this edition of "The Repair Bench" we cover a common repair for us - replacing the input jack on a Roland Micro Cube amplifier.
At some point you'll power-up a circuit and find that it doesn't work, and then what? For this reason we write "The Repair Bench" section of Guitar Kit Builder about our own troubleshooting of amplifiers and other devices, to pass along to the reader the thought process, tips and techniques of troubleshooting electronic equipment.
ROLAND SOUND CANVAS CUTS OUT HOW TO
Learning how to troubleshoot electronic circuits is one of the handiest skills anyone can have if they are building or modifying amplifiers or effect pedals.