AI-generated product photo — not official manufacturer imagery.
Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The David Berning ZH270 is a stereo power amplifier that employs patented radio-frequency switching power conversion technology to transform the high-voltage, low-current output tube impedance into a high-current, low-voltage speaker impedance. This unique approach eliminates the limitations of conventional audio transformers, allowing for very high impedance transformation ratios (16 k ohms plate-to-plate into 4 ohms, or 32 k ohms into 8 ohms). The amplifier delivers 84 watts per channel into 8 ohms with a frequency response from 1.5 Hz to 60 kHz and total harmonic distortion of 0.2%. It features a special triode-connected screen-drive arrangement for enhanced reliability and linearity at low idle currents. The ZH270 offers excellent tonal clarity, dynamic contrast, deep tuneful bass, and a spacious 3-D soundstage with superb transparency and image palpability. It includes a three-position feedback switch, low negative feedback, no phase compensation, and a fully regulated resonant-type switching power supply with advanced noise suppression and protection features. The amplifier weighs about 10 pounds and has a compact footprint with a black anodized aluminum finish. It is designed for use with speaker loads from 4 to 16 ohms and operates with low idle plate dissipation for long tube life. The ZH270 is noted for its immediacy, speed, and ability to reproduce bass frequencies down to 2 Hz at full power, making it a standout in tube amplifier design.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The ProLogue Seven's power @ 8ω is 70W against the ZH270's 84W, its signal-to-noise 101 dB against 85 dB, its thd 1.000% against 0.200%, and its output voltage 0.9V RMS against 0.7V RMS.
The DiaLogue Premium HP Power's power @ 8ω is 70W against the ZH270's 84W, its signal-to-noise 92 dB against 85 dB, and its thd 0.100% against 0.200%. Both share class (Tube).
The DiaLogue Premium Power's power @ 8ω is 42W against the ZH270's 84W, its signal-to-noise 94 dB against 85 dB, its thd 0.100% against 0.200%, and its output voltage 0.9V RMS against 0.7V RMS.
The DiaLogue Six's power @ 8ω is 70W against the ZH270's 84W, its signal-to-noise 83 dB against 85 dB, its thd 0.250% against 0.200%, and its output voltage 1.1V RMS against 0.7V RMS.
The specs and the pairings above are open to everyone. Sign up and you get the system builder, the assistant, a compatibility check against the gear you already own, and a watch on this product so a price or pairing change reaches you.
Sign up freeMcIntosh MC75