DS Audio TB-100 Equalizer

The TB-100 is DS Audio's full tube flagship equalizer, using quad-matched ECC82/12AU7 tubes selected to within 1 percent and 0.1dB of each other, with one tube per channel for voltage amplification and a second for output buffering through a low-impedance cathode-follower stage.

Its wideband input transformer converts the optical cartridge's current signal with precise phase alignment for a frequency response flat to within 1dB from 10Hz to 70kHz, and its symmetric twin-mono layout uses fully independent grounds and power transformers per channel to eliminate crosstalk.

Sold on its own rather than tied to one cartridge tier. Confirm the exact list of compatible DS Audio cartridges with Musical Surroundings before publishing.

Specifications

• Topology: full tube, quad-matched ECC82/12AU7, twin-mono construction
• Input: wideband transformer, flat plus or minus 1dB from 10Hz to 70kHz
• Connections: RCA in/out
• Output: 500mV at 700 ohms output impedance
• Weight: 18.7kg