The A1 FBP pre-amplifier has two balanced inputs, a moving coil/moving magnet phono stage, a USB input, a home cinema bypass connection (for use when it's combined with AV amps or processors) and both balanced and single-ended outputs. Also has a balanced output for connection to power-amp.
The fully-balanced layout is designed to give the preamp wide bandwidth, low distortion and low noise. Meanwhile the external power supply keeps electromagnetic interference from the transformer and power supply circuitry away from the audio signals in the preamp. It also uses four-stage choke filtering to further condition the AC power before it gets to the preamp.
Available from August 2008, the A1 FPB sold for £1499.
Hifi World Magazine review PDF -- 5 star rating: https://ufile.io/319de
Manual in PDF: https://ufile.io/2dngb
Preamp is in great shape. Comes with original boxes, manual, and remote