Preamplifier for acoustic instruments, input: 10 milli-ohms with discrete class A JFET design, fully analog signal path with parallel digital effects, 4-band EQ with selectable bass, mid, treble and low-cut, 2 reverbs, 2 delays, 2 chorus and flanger or tremolo, soft-knee compressor, boot footswitch (up to 9 dB), selectable phase-invert feedback control, one 1/4” mono instrument input, one 1/4” amp output, XLR DI output balanced with pre/post routing, powered by 9V battery (not included) or Fishman 910-R power adapter (optional), battery life: 12 hours, dimensions: 136 x 241 x 56 mm, weight: 1.1 kg .