What is it? Boss HM-2 Heavy Metal distortion. Made in taiwan, early 1988. It has six number serial with leading zero, so that makes the unit one of the very first taiwan made HM-2s If you have not heard anything about this distortion, you must have been living under a rock. It is one of…
Category: Boss
Boss RV-2 Digital Reverb
What is it? Boss RV-2 Digital Reverb. Made in japan, 1987. Got the unit in a bag of crap i bought from one local guy. The unit was missing a bottom plate altogether and it was not in working condition. Checked the insides around for a while and there were just couple of loose wires…
Boss GE-7 Graphic Equalizer
What is it? Boss GE-7 Equalizer, made in taiwan in may 2002. Otherwise in fair condition, but missing a few slider knobs (which seem to very hard to source as spares). Schematic is online, courtesy of Hobby-Hour.com. There are three DIP-8 and two SIP-9 opamps plus a transistor based output buffer that make up the…
Boss BD-2 Blues Driver
What is it? Boss BD-2 Blues Driver. Made in Taiwan. Unit has nice road worn on the casing. Manufactured in april, 2004. Although i’m not deeply in love with Boss boxes, there are a few designs that i find interesting and usable at the same time. This is one of those. Discrete opamp and well…
Boss MD-2 Mega Distortion
What is it? Boss MD-2 Mega Distortion, made in Taiwan in february 2009. Got the unit in very good condition for a fair price – without a box and papers, but still nice. Actually i got this on the same day as the Morley Crystal Chorus. So, of course, i hooked them both up for…
Boss MT-2 Metal Zone
What is it? Boss MT-2 Metal Zone Distortion. Made in Taiwan in january 1999. While the design seems to be quite a standard for metal players, it doesn’t move me that much. The eq section with half parametric mids is well designed and definitely the best part of this pedal. The schematic shows that the…
Boss SD-1 Super Overdrive
What is it? Boss SD-1 Super Overdrive. Made in taiwan, january 2010. One of these boxes that i knew i had to have, no matter if i like or not. And the answer is not. Must be one of the most sold Roland Boss pedals ever. The design has been on the market since 1981….
Boss TR-2 Tremolo
What is it? Boss TR-2 Tremolo. Unknown manufacture date. No serial, as the label has vanished at some point alolng the way. This came to me in a trade as a defunct unit. Gladly, it was just polarity protection diode and one burned resistor. No visible damage to the board itself. Of all the tremolos…