TEAC Launches the Reference 500 Series Pure Analog Headphone Amplifier/Preamp HA-507

TEAC Corporation (TOKYO: 6803) is proud to announce the HA-507, a Reference 500 Series pure analog headphone amplifier/preamplifier that incorporates TEAC’s premium audio technologies to achieve the highest level of sound quality.

Equipped 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.

KEY FEATURES

Headphone Amplifier

● High power, wide range, low distortion headphone amplifier

● Fully balanced/dual mono configuration with extremely powerful/musical amplifier elements

● Exceptional headphone drive capability of 6.7W + 6.7W (32Ω) at balanced output

● Preamp pass-through function for use as a separate power amplifier for headphones

● Two balanced outputs: XLR 4-pin x 1, 4.4 mm Pentaconn x 1

● Unbalanced outputs: 6.3 mm x 1, 3.5 mm x 1

● Switchable headphone output gain (high/mid/low)

Preamplifier

● 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 x 2, RCA x 2

● Outputs: XLR x 1, RCA x 1

Power Supply

● 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

● 18,800 μF per channel dual-mono configuration for dynamic, responsive sound

● High-quality power components, high-speed Schottky barrier diodes.

● Low-feedback, discrete regulated power supply circuit for excellent dynamics and imaging

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 x 2), motorized volume control

● Available in two colors: silver and black

The HA-507 MSRP is $1999 (USA) / €1899 (EU) / £1899 (UK). It will be available for purchase starting January 2025 at TEACUSA.COM. Find a local dealer at TEAC.JP.INT

SPECIFICATIONS

● Analog audio inputs: XLR x 2, RCA x 2

● Anlog audio outputs: XLR x 1, RCA x 1

● Frequency response*: 10 Hz to 150 kHz (+1 dB / −4 dB)

● S/N ratio*: 110 dB (A-Weight, 1kHz)

● THD +N*: 0.0006 % (1 kHz, LPF: 20 kHz)

● Headphone outputs: Standard 6.3 mm (1/4″) x 1, 3.5 mm (1/8″) stereo mini x 1, 4-pin XLR x 1, 4.4 mm 5-pole stereo x 1

● Rated output: [UNBALANCED] 2.3 W + 2.3 W (into 32 Ω), 1.2 W + 1.2 W (into 100 Ω), 0.48 W + 0.48 W (into 300 Ω), 0.25 W + 0.25 W (into 600 Ω) [BALANCED] 6.7 W + 6.7 W (into 32 Ω), 4.2 W + 4.2 W (into 100 Ω), 1.8 W + 1.8 W (into 300 Ω), 0.95 W + 0.95 W (into 600 Ω)

● Applicable load impedance: 16 to 600 Ω

● Power supply [Europe] AC 220–230 V, 50/60 Hz [USA/Canada] AC 120 V, 60 Hz

● Power Consumption: 30 W

● Standby power: 0.3 W

● External dimensions (W × H × D, including protrusions): 290 × 84.5 × 243.9 mm (11 1/2″ × 3 3/8″ × 9 5/8″)

● Weight: 4.6 kg (10 1/4 lb)

*Measurement conditions: [Measurement input] RCA, 2 Vrms, [Measurement output] RCA, 2 Vrms