TEAC Audio
HA-507 Balanced High Output Headphone Amplifier
$1,999.00 USDFeatures
An ESS Technology ES9038Q2M converter each for left and right channels
Dual on-board clocks for 44.1kHz and 48kHz frequencies
7 types of PCM digital filters
Up-conversion up to 24.5MHz DSD and 384kHz/32bit PCM
10MHz external clock input
Bluetooth® receiver supporting LDAC™, Qualcomm® aptX™ HD, AAC and SBC
Original TEAC-HCLD2 enhanced-current output buffer circuit
Dual monaural circuit design
Dual toroidal-core power transformers for each channel
TEAC-QVCS quad volume control system
4.4mm 5-polar Pentaconn*1 jack and dual 1/4” (6.3mm) TRS jacks for balanced and active-ground drives
Full-dot OLED display with dimmer function
Newly-developed “Stressless Foot” design with three support points
Semi-floating design Top Panel
Bulk Pet*2 USB transferring technology with four transfer modes for various sound characters
Free TEAC HR Audio Player for Windows/Mac
What's in the Box?
Warranty
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.
As an authentic pure analog headphone amplifier
Combined with your favorite DAC or digital player, you can build a full-fledged headphone listening system.
As a compact premium preamplifier
Combined with the Reference 500 series power amplifier, a compact separate amplifier system with authentic sound quality can be realized. * Shown with the AP-505 which has been discontinued. A successor model is scheduled.
... And, as a “headphone power amplifier”
If you already have a higher quality preamplifier in your speaker system, you can pass through the HA-507's preamplifier and add it as a "headphone power amplifier".
| Supported formats | |
|---|---|
| USB input | |
| PCM | 16/24/32 bit |
| 44.1k/48k/88.2k/96k/176.4k/192k/352.8k/384k/705.6k/768k Hz | |
| DSD | 2.8M/5.6M/11.2M/22.5M Hz |
| Coaxial digital input | |
| PCM | 16/24 bit |
| 32k/44.1k/48k/88.2k/96k/176.4k/192k Hz | |
| DSD | 2.8MHz(supported with 176.4kHz/24-bit DoP format) |
| Optical digital input | |
| PCM | 16/24 bit |
| 32k/44.1k/48k/88.2k/96k/176.4k/192k Hz | |
| DSD | 2.8MHz(supported with 176.4kHz/24-bit DoP format) |
| DAC section | |
| USB DAC | ESS Technology ES9038 Q2M ×2 |
| Up-conversion | up to 384kHz/32-bit PCM, 24.5MHz DSD |
| Audio inputs | |
| USB | USB B port, USB 2.0, asynchronous mode transfer, bulk transfer |
| Compatible Software | TEAC HR Audio Player (Windows, Macintosh) |
| COAXIAL digital (rear) | RCA pin ×1 (gold-plated) |
| Input level | 0.5Vp-p |
| Input impedance | 75Ω |
| Optical digital (rear) | TOS-link ×1 |
| Input level | -24.0 to -14.5dBm peak |
| Coaxial digital (front) | 1/8” (3.5mm) mini* ×1 (combined with optical digital input, detected automatically) |
| Input level | 0.5Vp-p |
| Input impedance | 75Ω |
| * 1/8” Mini - RCA conversion cable included. | |
| Optical digital (front) | 1/8” Mini Optical*×1 (combined with coaxial digital input, detected automatically) |
| Input level | -24.0 to -14.5dBm peak |
| Analog (rear) | RCA pin ×1 pair (gold-plated) |
| Input impedance | 24kΩ |
| Input sensitivity | 130mV |
| Bluetooth® | |
| Bluetooth® version | 4 |
| Output class | Class2 (Range: approx. 33ft/10m) |
| Supported profiles | A2DP, AVRCP |
| Content protection | SCMS-T |
| Supported codec | LDAC™, Qualcomm® aptX™ HD, aptX™, AAC, SBC |
| No. of paired device | maximum 8 devices |
| Audio outputs | |
| XLR balanced | XLR ×1 pair (gold-plated) |
| Output level | Fixed (0dB), fixed (+6dB), variable, output off (selectable) |
| Maximum output leve | 2.0Vrms (1kHz, full scale, into 10kΩ, when set to fixed (0dB)) |
| 4.0Vrms (1kHz, full scale, into 10kΩ, when set to fixed (+6dB)) | |
| 12.0Vrms (1kHz, full scale, into 10kΩ, when set to variable) | |
| Output impedance | 188Ω |
| RCA unbalanced | RCA pin ×1 pair (gold-plated) |
| Output level | Fixed (0dB), fixed (+6dB), variable, output off (selectable) |
| Maximum output leve | 2.0Vrms (1kHz, full scale, into 10kΩ, when set to fixed (0dB)) |
| 4.0Vrms (1kHz, full scale, into 10kΩ, when set to fixed (+6dB)) | |
| 6.0Vrms (1kHz, full scale, into 10kΩ, when set to variable) | |
| Output impedance | 150Ω |
| Headphone outputs | |
| Connector 1 | 1/4” (6.3mm) TRS stereo jacks ×2 (gold-plated) |
| Polarity (balanced) | Tip: HOT, Ring: COLD, Sleeve: NC (GND) |
| Polarity (unbalanced) | Tip: L, Ring: R, Sleeve: GND |
| Connector 2 | 4.4mm 5-pole Pentaconn ×1 (gold-plated) |
| Polarity (balanced) | Tip: L+, Ring1: L-, Ring2: R+, Ring3: R-, Sleeve: GND |
| Maximum output | |
| Balanced | 700mW + 700mW (into 32Ω) |
| Unbalanced | 500mW + 500mW (into 32Ω×1) |
| 350mW + 350mW(into 32Ω×2) | |
| Active ground | 500mW + 500mW (into 32Ω) |
| Supported impedances | 16 to 600Ω |
| Clock section | |
| Internal clock | |
| Type | Crystal oscillator |
| Number of clocks | 2 (44.1kHz and 48kHz) |
| External clock input | |
| Connector | BNC (gold-plated) |
| Input frequency | 10MHz |
| Input impedance | 50Ω |
| Input level | Rectangle wave: equivalent to TTL levels |
| Sine wave: 0.5 to 1.0 Vrms | |
| Audio performance | |
| Frequency Response | 10 to 80,000 Hz (+1/–3 dB, 192kHz PCM input, RCA output, digital filter off) |
| Total harmonic distortion | 0.002% or less (192kHz PCM input, RCA output, digital filter off) |
| S/N ratio | 110dB or higher (192kHz PCM input, RCA output, digital filter off) |
| Power supply | |
| US/Canada | AC 120V 60Hz |
| UK/Europe | AC 220 to 240V 50Hz |
| Power consumption | 18W (0.4W in standby) |
| dimensions (including protrusions) | 290(W)×84.5(H)×248.7(D) mm / 11.4”(W)×3.3”(H)×9.8”(D) |
| Weight | 4.1kg / 9.1lbs |
| Included accessories | Power cord, RCA mini plug adapter cable, remote control(RC-1330), 2 AAA batteries for remote control, 3 feet cushions, Owner's Manual(with warranty) |
Up-conversion Table
| Input Frequency | Up-converted Frequency | ||||||
| Coax/Opt | USB | off | 2Fs | 4Fs | 8Fs | DSD256 | DSD512 |
| 32kHz | - | 32kHz | 64kHz | 128kHz | 256kHz | 8MHz | 16MHz |
| 44.1kHz | 44.1kHz | 44.1kHz | 88.2kHz | 176.4kHz | 352.8kHz | 11.2MHz | 22.5MHz |
| 88.2kHz | 88.2kHz | 88.2kHz | 88.2kHz | 176.4kHz | 352.8kHz | 11.2MHz | 22.5MHz |
| 176.4kHz | 176.4kHz | 176.4kHz | 176.4kHz | 176.4kHz | 352.8kHz | 11.2MHz | 22.5MHz |
| - | 352.8kHz | 352.8kHz | 352.8kHz | 352.8kHz | 352.8kHz | 11.2MHz | 22.5MHz |
| - | 705.6kHz | 705.6kHz | 705.6kHz | 705.6kHz | 705.6kHz | 11.2MHz | 22.5MHz |
| 48Hz | 48Hz | 48kHz | 96kHz | 192kHz | 384kHz | 12.2MHz | 24.5MHz |
| 96kHz | 96kHz | 96kHz | 96kHz | 192kHz | 384kHz | 12.2MHz | 24.5MHz |
| 192kHz | 192kHz | 192kHz | 192kHz | 192kHz | 384kHz | 12.2MHz | 24.5MHz |
| - | 384kHz | 384kHz | 384kHz | 384kHz | 384kHz | 12.2MHz | 24.5MHz |
|
- |
768kHz | 768kHz | 768kHz | 768kHz | 768kHz | 12.2MHz | 24.5MHz |
Comparison with previous models
| UD-505-X | UD-505 | UD-503 | UD-501 | |
| USB DAC | ES9038 Q2M ×2 (L/R) | AK4497 ×2 (L/R) | AK4490 ×2 (L/R) | PCM 1795 ×2 (L/R) |
| Supported DSD formats | 22.5MHz maximum | 22.5MHz maximum | 11.2MHz maximum | 5.6MHz maximum |
| Supported PCM formats | 768kHz/32-bit maximum | 768kHz/32-bit maximum | 384kHz/32-bit maximum | 384kHz/32-bit maximum |
| Up-conversion (Max) | DSD: 24.5MHz (DSD 256, 512) PCM: 384kHz/32-bit (2 fs, 4 fs, 8 fs) |
DSD: 24.5MHz (DSD 256, 512) PCM: 384kHz/32-bit (2 fs, 4 fs, 8 fs) |
DSD: 12.2MHz (DSD 256) PCM: 384kHz/32-bit (2 fs, 4 fs, 8 fs) |
PCM: 192kHz/24-bit (fixed) |
| Dual monaural | Yes | Yes | Yes | Yes |
| Current buffer circuit | TEAC-HCLD2 | TEAC-HCLD | TEAC-HCLD | - |
| TEAC QVCS circuit (High-precision volume) |
Yes | Yes | Yes | - |
| Line/balanced outputs | Yes | Yes | Yes | Yes |
| Line parallel/ unbalanced outputs |
Yes | Yes | Yes | Yes |
| High-precision dual clock | Yes | Yes | Yes | Yes |
| External clock input | Yes | Yes | Yes | - |
| Preamplifier function | Yes | Yes | Yes | - |
| Bulk Pet transmission | Yes | Yes | - | - |
| Line output level switching |
|
|
|
- (Line output on/off selection only when headphones connected) |
| Front digital input | Yes (Combined coaxial/optical mini jack) |
Yes (Combined coaxial/optical mini jack) |
Yes (Combined coaxial/optical mini jack) |
- |
| Analog line inputs | 1 pair (RCA) | 1 pair (RCA) | 1 pair (RCA) | - |
| Bluetooth® receiver | Yes | Yes | - | - |
| Headphone amplifier circuit | Current-strengthening circuit | Current-strengthening circuit | Current-strengthening circuit | Op-amp |
| Headphone output connectors/ drive modes |
4.4mm 5-pole ×1
|
4.4mm 5-pole ×1
|
Standard 6.3mm ×2
|
3.5mm stereo mini ×1
|
| Feet | Stressless Pin-point foot | Pin-point foot | Pin-point foot | Conventional insulated foot |
| Remote control | Yes | Yes | Yes | - |