BAlabo – BP-1 MK-II Power Amplifier from Bridge Audio Laboratory
The BAlabo BP-1 MK-II Power amplifier is a tour-de-force in amplifier design and the absolute last word in musical performance. The BAlabo BP-1 MK-II offers subtle shading and micro dynamics, beautiful midrange clarity, tuneful bass with pluck and pace and, of course, awesome dynamics  The BP-1 MK-II has a level of transparency and warmth that is virtually unknown in solid state amplifier design. The BP-1 MKII is a 100% solid state design and as a result, it possesses incomparable grip and effortless control without any of the dryness or glare sometime associated with solid state designs. Now the need for tubes is but a faint memory of the past.

Noise Reduction for AC Line and Power Rectification
In home environments, electronic equipment such as personal computers and televisions, add noise to the power mains and degrade the AC waveform. This can deteriorate the performance your audio components. The BP-1 employs a power line filter at the AC inlet that reduces external noise and reshapes the AC wave form.

The BP-1 MK-II has adapted an insulating copper foil to act as a shield between the primary and secondary windings, and between the transformer and the chassis, completely shielding the transformer and eliminating electromagnetic couplings.

Rectification noise is also reduced with a BYPASS capacitor that is carefully selected for high quality sound. The rectifying diode is a high-speed type, selected for its very low noise.

Mechanical Grounding of Chassis
The four corners of the chassis are constructed with heavy-duty, extruded aluminum for superior mechanical integrity. The chassis is designed to aid in the dispersion of the resonant frequencies by the use of various materials (Aluminum/Steel/Corian) each with their own properties of absorption and transmission. External vibration is never propagated to the internals of the amplifier. Vibration attenuation is achieved with the use of CORIAN® resin (high tech thermo-plastic material which is hardened by the powder of oxidized aluminum) which is located along the top and bottom edges lengthwise so that side wall,  top cover and the bottom plate are all dampened. As the result, the local resonance of each structural member is suppressed to an absolute minimum.

Power Level Indicators
In the center of the front panel of the BP-1 MKII there are two lighted vertical power indicators for the left and right channels. The greater the power output, the higher the vertical bar is illuminated. Light function can be attenuated 10dB for high efficiency systems or, turned off completely.

Stand-by Function
A stand-by switch is located on the front panel so the BP-1 is ready at all times to provide the optimal sound quality without the need for a warm up period. Electrolytic caps remain charged during standby. Main on/off is located on the rear of the chassis.

Remote Power On/Of from Control Amplifier
The remote power on/off scheme is employed in all BAlabo products.  The BP-1 has a pair of RJ11 jacks on the rear panel for use with external equipment such as power amplifiers, for remote control power on/off. This system is completely isolated from the audio signals.

PowerKon AC Inlet
The AC inlet connection is very important for proper operation. The BP-1 uses PowerKon connector made by Neutrik Corporation of Germany. The PowerKon inlet for the AC mains offers superior reliability and product safety.  The PowerKon has one-third the contact resistance of conventional connectors and a larger maximum current rating (20A). The PowerKon is a bayonet, snap-in mechanism and is designed to prevent unexpected disengagement of the AC cord.

Integrated Spikes for Rigid Installation
The feet of the BP-1 are coated with Teflon with an under cushion material to prevent shipping damage. Once the BP-1 is installed, spikes (included) can be threaded into the base of each foot for additional mechanical grounding.

Custom Components Throughout
For the ultimate in sound quality, components must be selected through careful listening tests. The BP-1 uses many custom components, such as all electrolytic capacitors in the power supply section, fixed resistors for the audio signal, copper foil capacitors for phase compensation and the relays. As a result of these selections, audio improvements are easily heard when compared to bulk style, off the shelf components.