TEAC Launches the Reference 500 Series Pure Analog Headphone Amplifier/Preamp HA-507
TEAC Corporation (TOKYO: 6803) (Headquarter: Tama, Tokyo, President & CEO: Yuji Hanabusa) is proud to announce the Reference 500 Series pure analog headphone amplifier/preamplifier HA-507. Products will be available for shipment in late January 2025.
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| Product Name | Model Name | Delivery Date | Sales Region |
| Headphone Amplifier / Preamplifier | HA-507 | Late January 2025 | Worldwide |
HA-507-B (Black)
HA-507-S (Silver)
Product Overview
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.
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.
- High power, wide range, low distortion Class AB amplifier
- Fully balanced/dual mono configuration with extremely powerful/musical amplifier elements
- 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
- 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
* Design and specifications subject to change without notice.
- Analog audio inputs: XLR × 2, RCA × 2
- Anlaog audio outputs: XLR × 1, RCA × 1
- Frequency response*: 10Hz to 150kHz (+1dB/–4dB)
- S/N ratio*: 110dB (A-Weight, 1kHz)
- THD +N*: 0.0006% (1kHz, LPF: 20kHz)
- Headphone outputs:
Standard 6.3mm (¼”) × 1
3.5mm (⅛”) stereo mini × 1
4-pin XLR × 1
4.4mm 5-pole stereo × 1 - Rated output:
[UNBALANCED]
2,300mW + 2,300mW (into 32Ω)
1,200mW + 1,200mW (into 100Ω)
480mW + 480mW (into 300Ω)
250mW + 250mW (into 600Ω)
[BALANCED]
6,700mW + 6,700mＷ (into 32Ω)
4,200mW + 4,200mW (into 100Ω)
1,800mW + 1,800mW (into 300Ω)
950mW + 950mW (into 600Ω) - Applicable load impedance: 16 to 600Ω
- Power supply:
[Europe] AC 220-230V, 50/60Hz
[USA/Canada] AC 120V, 60Hz - Power Consumption: 30W
- Standby power: 0.3W
- Overall dimensions: 290 × 84.5 × 243.9mm / 11-½” × 3-⅜” × 9-⅝” (W×H×D, including protrusions)
- Weight: 4.6kg / 10-¼lb
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