The BSM RM-Metal model is based on the British Range Master unit produced between 1965 and 1969, as used by Eric Clapton in John Mayall's Bluesbreakers. Eric also used the booster when playing in the legendary group Cream. Its biting, powerful sound is clearly in evidence on the Bluesbreakers "Beano" album. Blues rocker Rory Gallagher, Heavy Rock pioneer Tony Iommi and Brian May from Queen were also heavy users of the orginal Range Master unit. The long yearned for new edition, now issued under the name RM from BSM, includes the same OC44 germanium transistors as the the original 1965 version. The RM Metal is a modified '69er RM model like Mr. Iommi's unit, which he has used on his second Black Sabbath records and later. The RM Metal model is recommed for Nu-Rock, low dropped tunings and baritone guitars.

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RM Metal Treble Booster

Based on the best classic boosters, the BSM Ambassador - a germanium treble/midrange booster, is a crossover between the Rangemaster Booster, the Orange Booster and the Winston Booster. The transistors are specially selected to pass the strict internal BSM factory QC guidelines. Classic boosters never cared about the midrange, and that's what makes the Ambassador stand out - the midrange and the treble range are both inside this little box. From crystal clear highs to fat and meaty mids, it's easy to dial in all these sounds with every common pickup. With the "color" control set to midrange, a singlecoil pickup really sounds like a PAF humbucker, and a PAF like fat and overwounded humbucker. The Ambassador is loaded with a special selected original NOS germanium transistor from the 60's, like the Winston Treble Booster was.

Ambassador Treble/Mid Booster 

BSM decided to build a significant boutique overdrive pedal in order to add a different and more modern way of receiving the signature Blackmore sound additionally to the classic BSM full power Booster line: the SUPREME! If combines the medium output of an overdrive pedal with the typical Blackmore sound, so as to achieve Ritchie’s tone immediately with most amps bright channel independently from the SUPREMES’ output adjustment. The drive-control is there to set perfectly Ritchie’s gain-shadings over the last four decades of his rock-artistic development. The basic tone is very beefy with direct bass, punching mids and uncoloured treble.

Demo by  楽器好きにはたまらない! フーチーズ 渋谷店 

Demo by Haiko Heinz

Review by Premier Guitar

Supreme special Overdrive

BSM decided to take the idea of this classic Rock sound and came up with a completely different solution to hit the target. Not interested in making a simple copy of the circuit but developing own ideas to realize the functions with silicon transistors. What you get now is a flexible high gain treblebooster/preamp combination optimized for medium humbucker pickups that works also very well with P90s and singlecoils. It is intended to hit the high treble input of a British Plexi-type amp (or other classic British oriented tube amps) hard. What came out is a real monster, working at 18 volts. But we have to admit that it still works very well with 9 volts, just a little less monstrous. It also comes with a status LED. The preamp stage is a mild treblebooster of low noise followed by a high gain silicon output stage that can easily be symmetrically driven into saturation.

Demo by EytschPi42

Black Box Booster

The BSM RPA Special Booster is a combination of Ritchie Blackmores AIWA reel-to-reel tape recorder preamp stage plus the high-pass treble booster function from Blackmores hot-rodded Marshal Major amp, to emulate Ritchies post '74 sound with any standard amp. In 1974, right before the start of the "Burn" tour, Ritchie Blackmore changed his live setup. First and foremost, he wanted to play live with an echo effect and made the AIWA TP-1011 reel-to-reel tape recorder his first choice. This unit offered the typical 2/3 seconds echo repeat, perfectly matching Blackmores natural beat. Additionally, Ritchie Blackmore used the integrated microphone pre-amp as a booster, and with this his beloved Hornby-Skewes treblebooster he used for many years was not longer needed and was sent into retirement.

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Weitere Pedals von BSM - Meiser Electronics

BSM - Meiser Electronics

RM Metal Treble Booster

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Ambassador Treble/Mid Booster

BSM - Meiser Electronics

Supreme special Overdrive

BSM - Meiser Electronics

Black Box Booster

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