TEAC LAUNCHES THE REFERENCE 500 SERIES PURE ANALOGUE HEADPHONE AMPLIFIER/PREAMP HA-507

The TEAC HA-507 is the Japanese HiFi brand’s Reference 500 Series pure analogue headphone amplifier/preamplifier.

When connected to the TRDD 5 discrete DAC, model UD-507, you can create a headphone playback system with separate digital and analogue sections.

TEAC HA-507 HEADPHONE AMP/PREAMPLIFIER

The TEAC HA-507 is a “no-compromise” headphone amplifier that can also be used as a pure analogue 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, TEAC says.

DUAL MONO CONFIGURATION

This compact unit features a fully balanced, dual mono configuration capable of delivering 6.7W per channel at 32Ω through balanced outputs, making it well-suited for driving a wide range of headphones. With options for both balanced (XLR and 4.4mm) and unbalanced (6.3mm and 3.5mm) outputs, it also offers a preamp pass-through function, allowing it to be used as a standalone power amplifier.

PREAMP MODE

In preamp mode, the HA-507 brings TEAC’s precision design to the forefront. It features the new TEAC-QVCS advanced volume control, which uses a high-precision ladder resistor network for smooth adjustments in 0.25dB increments. The preamplifier also utilises TEAC-HCLD 2 technology, ensuring high-speed, powerful external amplifier drive. Connectivity includes dual XLR and RCA inputs, as well as outputs, making it adaptable for various high-fidelity setups.

POWER SUPPLIES

The HA-507 is powered by two independent power supplies, one dedicated to audio circuits and another to control circuits. Large toroidal transformers and high-speed Schottky diodes provide a dynamic and responsive power source, contributing to exceptional sound clarity and imaging. The power configuration also includes 18,800 μF per channel, optimising dynamic range and sound fidelity.

COMPACT DESKTOP SIZE

Housed in a compact A4-sized aluminium chassis, the HA-507 is suitable for both rack and desktop use. The fanless, heat-dissipating design and semi-floating 2.8mm aluminium top plate ensure durability, while stress-free metal feet improve sound imaging. Available in silver and black finishes, the HA-507 comes with a dedicated remote control for easy, motorised volume adjustments.

TEAC HA-507 HEADPHONE AMP/PREAMPLIFIER SPECIFICATIONS

Analogue audio inputs: XLR x 2, RCA x 2

Analogue audio outputs: XLR x 1, RCA x 1

Frequnecy 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), 1.2W +1.2 W(into100 Ω),0.48W+0.48W(into300 Ω),0.25W+0.25W(into600 Ω)[BALANCED]6.7W+ 6.7 W (into32 Ω),4.2W+4.2W(into100 Ω),1.8W+1.8W(into300 Ω),0.95W+0.95W(into600 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

TEAC HA-507 HEADPHONE AMP/PREAMPLIFIER PRICE

The HA-507 MSRP is $1999 (USA) / €1899 (EU) / £1899 (UK).  It will be available for purchase starting January 2025.

HiFi PiG Says: A lovely looking and versatile Pre/Headphone amp from TEAC.