TEAC HA-507
The HA-507 is a pure analog headphone amplifier/preamplifier that incorporates TEAC’s premium audio technologies to achieve the highest level of sound quality. HA-507Equipped with an extensive power supply circuit, the HA-507 has exceptional headphone driving power and an extremely wide frequency response that cannot be imagined from its compact appearance. When connected to the TRDD 5 discrete DAC, model UD-507, you can create a special headphone playback system with separate digital and analog sections.
The HA-507 is a no-compromise headphone amplifier that can also be used as a pure analog preamplifier. When paired with a Reference 500 Series power amplifier, you can create a compact yet full-featured separate amplifier system that further enhances the quality of your loudspeaker listening experience.
Headphone Amplifier section
- High power, wide range, low distortion Class AB amplifier
- Fully balanced/dual mono configuration with four amplifier elements originally designed for speaker drive
- Exceptional headphone drive capability of 6,700mW + 6,700mW (32Ω) at balanced output
- Preamp pass-through function for use as a separate power amplifier for headphones
- Two balanced outputs: XLR 4-pin × 1, 4.4mm Pentaconn × 1
- Unbalanced outputs: 6.3mm × 1, 3.5mm × 1
- Switchable headphone output gain (high/mid/low)
Preamplifier section
- Premium compact preamplifier built on TEAC’s unparalleled excellence in audio design
- Fully balanced/dual mono configuration
- “TEAC-QVCS Advanced” with new super high precision, ladder resistor network
- Smooth, precise volume control in 0.25dB increments
- Lossless, long life FET input switching system without mechanical contacts
- “TEAC-HCLD 2 (High Current Line Driver 2)” provides fast and powerful external amplifier drive capability.
- Inputs: XLR × 2, RCA × 2
- Outputs: XLR × 1, RCA × 1
Power Supply section
- Two independent power supplies (one for audio circuits and one for control circuits)
- Large toroidal power transformers with separate left and right windings exclusive for audio circuits
- 18,800μF per channel dual-mono configuration for dynamic, responsive sound
- Low-feedback, discrete power rectification circuitry for excellent dynamics and imaging
- High-quality power components, high-speed Schottky barrier diodes.
Mechanical Design, Additional Features
- Compact yet rugged A4-size aluminum chassis suitable for both audio rack and desktop applications
- Semi-floating 2.8mm thick aluminum top plate
- Stressless metal feet with three-point support for precise imaging and natural sound characteristics
- Fanless, highly efficient heat dissipation design
- Preamp pass-through for AV surround systems
- Trigger in/through terminals
- High grade aluminum knobs with patent-pending mechanism to prevent off-axis shaft movement
- RC-1340 dedicated remote control (AAA × 2), motorized volume control
- Available in two colors: silver and black
SPECIFICATIONS
| S/N ratio | 110dB (A-weight, 1kHz) |
| THD+N | 0.0006％ (1kHz, LPF: 20kHz) |
| Frequency response | 10Hz to 150kHz (+1/–4dB) |
| Power supply | AC 220 230V, 50/60Hz (Europe), AC 120V, 60Hz (USA/Canada) |
| Power consumption | 30W (0.3W in standby) |
| Oveall dimensions (W × H × D) | 290 × 84.5 × 243.9mm / 11-½” × 3-⅜” × 9-⅝” (including protrusions) |
| Weight | 4.6kg / 10-¼ lb |
| Included accessories | Power cord, Remote control (RC-1340), AAA Batteries for remote control × 2, feet cushions × 3, Owner's Manual (with warranty) |