All parts of the 860 Stereo Amplifier, every piece of metal, every circuit, is created and assembled in-house by our own craftsmen and technicians. Boulder is the last high-performance audio manufacturer in North America to proudly hold this degree of quality control over our own designs.
Programmable Boulder Link to turn on multiple 850s and transmit their status to any Boulder preamplifier's display
Supervising microprocessor oversees all functions and communicates with Boulder preamplifiers
Two-stage design provides most of the gain in the first stage, thus maximizing bandwidth
Advanced protection circuits for trouble-free operation
Precision surface mount circuit boards minimize connection resistance and inductance
Rugged, easy-to-connect, high-current speaker terminals require no tools
16 output transistors provide stable operation with practically any loudspeaker
Potted and magnetically shielded power transformer for quiet operation
Multiple filter capacitors assure a low impedance, distributed power supply
Boulder 860 Stereo Power Amplifier
NEW Warranty 5 years