The Tube Amplifier that breaks Rules, not your Back.
Meet your Companion.
For the longest time, tube amplifiers, especially for bass, used to be massive, heavy - sometimes nearly impossible to carry while also being prone to failure. For that reason, most manufacturers seem to have abandoned the concept of all-tube bass amplifiers altogether and instead moved on to developing lighter and lighter digital amplifiers. Sadly however, sound quality and genuine power output are often compromised in the effort to cut an amplifier's weight down into the sub-kilogram numbers.
But, what if there was actually a way to significantly reduce the weight of all-tube amplifiers without compromising on the quality of the components, the build, or the sound?
Meet the B100. All-tube. All-analog. Handmade in Germany.
The outside of the B100 only tells part of the story. The "secret" behind its stellar tonal definition, headroom, and dynamic range lies in the parts that its made of. Pristine new-old-stock preamp tubes make sure that the preamp sounds stunningly transparent while making your tone feel more alive and three-dimensional.
The supersized toroidal power transformer along with the handmade output transformer and KT120 power amp tubes give the B100 its enormous dynamic range and ensure that you'll get every single one of the B100's 100 Watts of output power. Another handy feature of our output transformer is that it lets you take full advantage of the amp's power at any impedance.
Input Attenuation (0 to -15dB)
Automatic Input Impedance Adjustment
Active 3-Band EQ
Variable Input Attenuation (0 to -15 dB)
Hand-selected new-old-stock preamp tubes
100 W all-tube power amp Section
Handmade output transformer
Two hand-selected KT120 tubes by Tung Sol
Post-EQ DI-output with own winding on output transformer
Also accepts three 6550 tubes (available seperately)
TRS Instrument Input with Automatic Impedance Adjustment
2 Speakon™ loudspeaker terminals. 1x 4 Ohms, 1x 8 Ohms.
Transformer-balanced post-EQ DI-output (XLR)
Mains connector (single voltage, 110-120V or 220-240V)
Scratch-resistant large-grain powder coating (black)
Vibration-absorbing solid rubber feet
Air-convection channels and ventilation grid allow for completely fan-less operation
Dimensions & Weight
Dimensions: 360 x 230 x 240 mm
Weight (without Case): 9kg (19.8 lbs)
Weight (with Case): 15kg (33 lbs)
Available for 100-120V and 220-240V regions
German-made, highest-grade toroidal power transformer
Package Contents & Warranty
Foam-padded flight case
STHC High-Class power cable
5-year Rheingold Warranty