On the other end was the Genz-Benz Shuttle 9.0, coming in at 4 pounds, 900 watts, and at a cost of $829. On the smallest end was the Gallien-Krueger MB200, weighing in at just 2 pounds, putting out 200 watts, and selling for $249. We asked manufacturers to provide their smallest model that met these criteria, but allowed them to submit a higher-powered version if it met the required specs. And second, no single dimension of an amp could exceed 12 inches. First, an amp had to weigh 5 pounds or less. We used two basic parameters to guide our choices of amps to review. We’ve reviewed some micro bass amps in the past, including models from Carvin, SWR, TC Electronic, Ampeg, and Kustom, but this roundup brings you a new bumper crop of mighty midgets. This approach eliminates bulky transformers that alone outweigh most of these amps. The goal here is not to declare a winner or winners-at this level of amp, all are quality pieces of gear that differ mainly by their feature sets.Īll of these amps accomplish their magic by using a class D amp design and a switching power supply. This roundup is meant to serve as an intro to the possibilities out there and looks at a sampling of micro bass amps with varying sizes, weights, power ratings, and prices. Dimensions: 3.7" high, 7.With the wave of tiny but powerful bass amps continuing to swell, bassists face a sea of opportunity amidst a plethora of features. Over-Current: protected, Under-Voltage protected, Thermal protected Speaker Protection: protection circuit immediately disconnects your speakers Soft Start: gradually turns on the amp to prevent surges Direct Out: -50 to +4 dBu adjustable, DC isolated XLR output Compressor/Limiter: up to 3:1 compression ratio. 2 Hi Mid Parametric: +/- 12 dB sweepable 200 to 2kHz 1 Low Mid Parametric: +/- 12 dB sweepable 50 to 500 Hz Contour control: Flat to -15 dB at 500 Hz Bass/Treble: +/-12 dB at 60 Hz and +/-12 dB at 8kHz Passive/Active Input: 10 dB gain switch - accommodates all basses Frequency Response: +/- 1 dB 10 Hz - 20 kHz - THD: 0.1% 50% output Power Supply: High Efficiency High Frequency switching Output Mode: High Efficiency CLASS D technology Output Power: 250w RMS at 4 ohms 200w at 8 ohms Auto-switching AC input for 120V 60 Hz or 240V 50 Hz The head runs cool from its 94% efficiency - no wasted heat or energy from the AC plug The Switchmode power supply operates at 100,000 Hz delivering maximum efficiency while reducing weight Two 1/4" outputs, balanced XLR, and tuner/headphone output are located on the rear panel A conveniently located Mute switch and an Active/Passive switch tailors the input for different pickup configurations A Drive knob, plus Master Volume easily controls all your levels A single knob controls the optical compressor with an auto limiter to keep your peaks in check A built-in compressor allows you to tailor your sound just the way you like it. The Master level controls the speakers while the DI level controls the pre-amp output including the Phone/Tuner. The pre amp Direct Out XLR is pre- or post-selectable for the house PA or recording and includes a ground lift and Level control. It features an Active Switch, making it suitable for active or passive instruments, as well as a Mute switch for convienence. The Contour, Bass and Treble controls deliver deep bass and brilliant highs. The BX250 is the state of the art in micro-sized amps, with a Drive knob to control the harmonic content (clean to clipping) and dual Parametric EQ to select all the sweet tones of your bass. The new BX250 Micro Bass head is a full-featured amplifier in a small package that weighs only 3.2 pounds. Thank you for visiting the Instrumental Music Reverb Page! This is a very good condition Carvin BX250 Micro Bass Amp.
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