BOSS (Boss) BB-1X Bass Driver PSA-100S Set

BOSS (Boss) BB-1X Bass Driver Bass Preamplifier and PSA-100S Set.

Subjectively, I believe it is in beautiful condition. Please check the photos. Patch cable is not included.
Quoted from the following website:

Features
The latest bass preamplifier that is currently a hot topic. With a drive that doesn't thin out the low-end and a 2-band EQ, you can create a thick and punchy sound. In addition to the normal output, it is equipped with a balanced line output that can send a signal to a PA.

Specifications
■ Bass effector
■ Bass driver
■ Nominal input level: -20dBu
■ Input impedance: 1MΩ
■ Nominal output level: OUTPUT terminal: -20dBu, LINE OUT terminal: -20dBu Output impedance: OUTPUT terminal: 1kΩ, LINE OUT terminal: 600Ω
■ Recommended load impedance: OUTPUT terminal: 10kΩ or higher, LINE OUT terminal: 600Ω or higher
■ Controls: Pedal switch, LEVEL knob, BLEND knob, LOW knob, HIGH knob, DRIVE knob
■ Indicator: CHECK indicator (also for battery check)
■ Connection terminals: INPUT terminal, OUTPUT terminal, LINE OUT terminal (TRS standard type), AC adapter terminal (DC9V)
■ Power supply: Alkaline battery (9V type) or manganese battery (9V type), AC adapter (sold separately)
■ Current consumption: 54mA
■ Battery life during continuous use (varies depending on usage conditions): Alkaline battery: approx. 6 hours
■ Accessories: Warranty card, instruction manual, leaflet (Safety Precautions, Usage Precautions, Service Contact), alkaline battery (9V type); connected to the main unit
■ Sold separately: AC adapter (PSA-100)
■ Dimensions and weight: 73W x 59H x 129D mm, 450g