High-performance sound had always meant separate components, a lot of cables and large space requirements. Simple, integrated solutions fell short of the mark when it came to sound quality. In short, convenience came with compromise.
Until Boulder’s 865.
-
Massive, shielded, toroidal transformer and multiple filter capacitors for immediate power transfer
-
Efficient heatsink design means high power in a small chassis without excessive heat
-
Four pairs of inputs, each capable of custom configuration and naming
-
One pair of auxiliary outputs that can be set for fixed (to drive secondary systems) or variable operation (to drive a subwoofer or additional amplifier)
-
Fully balanced input circuitry for maximum resolution and sound quality
-
Rugged, easy-to-connect, high-current speaker terminals require no tools
-
Boulder’s own precision stepped volume control, the same as in the 2010 preamplifier
-
Input and preamplifier sections are housed in steel casework to eliminate interference from other portions of the amplifier
-
Supervising microprocessor controls all preamplifier functions, monitors protection circuits, and communicates with other Boulders