The PTM-1645 is often referred to as the "work horse" when it comes to multi-room sound. While other sixteen channel power amplifiers exist in the industry, none of them come close to the PTM-1645 with respect to performance, size and value. First and foremost, the PTM-1645 sounds amazing and is one of the main reasons ADA sits atop of the industry when it comes to multi-room sound. Able to drive eight independent zones, the PTM-1645 is also stable down to 2 Ohms - making it capable of driving four pair of 8 Ohm speakers per zone. Better yet, when adding a pair of speakers to a zone (2 pair of 8 Ohm speakers), instead of sharing power between the two pairs, the PTM-1645 nearly doubles its output.

The PTM-1645 also occupies only two rack spaces (3.5 inches in height) and because it is force-air cooled from side to side, it is specifically designed to be installed in very tightly packed racks. As for value, the PTM-1645 is built like a tank and designed to outlast other electronics out there.

• 6 Channel 8 Zone Power Amplifier
• 45 Watts Per Channel @ 8 Ohms
• 75 Watts Per Channel @ 4 Ohms
• 100 Watts Per Channel @ 2 Ohms
• 2 Ohm Minimum Safe Impedance
• 0.05% Total Harmonic Distortion @ 8 Ohms
• Low Voltage Triggers
• PAC Programmable Amp Controller
• 2U Fan Cooled Chassis
• Torroidal Power Transformer
• 600 Watts Maximum Power Consumption
• 1024 BTU's/Hr Thermal Dissipation
• 115 VAC Fuse Value 10A Slow Blow
• 230 VAC Fuse Value 5A Slow Blow
• 33 lbs. 3.5"H x 19"W x 16.5"D