Reference 200.7 S2 vs Reference 200.5 S2
The Reference 200.5 S2's power @ 4ω is 375W against the Reference 200.7 S2's 350W and its weight 33.57 kg (74 lbs) against 34.5 kg (76 lbs). Both share power @ 8ω (200W) and class (AB).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersMultichannel AmplifiersDiscontinued
About the Reference 200.7 S2
The B&K Reference 200.7 S2 is a high-power 7-channel amplifier designed for demanding audio and home theater systems. Hand-assembled in Buffalo, NY, it features Class A predriver and AB MOSFET output stages for effortless reproduction of dynamic music into difficult loads. It supports both balanced XLR and unbalanced RCA inputs, with switches to configure pairs of channels accordingly. A 5-24V DC trigger system enables remote standby control. Drivers can be paralleled per channel but system impedance must not drop below the amplifier's nominal rating (e.g., two 8Ω speakers = 4Ω minimum). Known for its solid build, warm sound signature, and reliability when serviced, it's ideal for multi-channel setups or pairing with bright speakers like Polk LSI series. Production around 2005; units often weigh 76 lbs and measure heavily built.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 200W @ 8Ω
- Power @ 4Ω
- 350W @ 4Ω
- Amplifier Class
- AB
- Minimum Impedance
- 4Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Analog Inputs
- XLR, RCA
Physical Dimensions
Size, weight, and appearance
- Weight
- 34.5 kg (76 lbs)
Key Specifications
Power: 200W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions