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TEAC

TEAC UD-507 USB DAC/Headphone Amplifier/Preamp

TEAC UD-507 USB DAC/Headphone Amplifier/Preamp

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RRP: $2099.99

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Completely redesigned 500 Series DAC/Preamp/Headphone amplifier with high-end 700 Series design concept in a compact A4-size package.

TEAC Reference500 Series 2000x1000 1

The UD-507 is equipped with our proprietary “TRDD 5” discrete DAC, designed with musicality as the top priority. Following in the footsteps of TEAC's acclaimed 701 series,
the new “TRDD 5” discrete DAC offers a clear soundstage and accurate imaging, providing listeners with a truly immersive musical experience.

UD-507

Fully Balanced Dual Monaural Headphone Amplifier

The UD-507 is a headphone amplifier featuring the TEAC-HCLD2 high current line driver, which is characterized by its high current supply capability.
Compared to the previous model, the maximum output power has been greatly
improved by strengthening the power supply, resulting in a generous driving power of
1,200mW + 1,200mW (balanced output at 100 ohm load), which is comparable to a dedicated headphone amplifier without DAC.
The power amplifier gain can be switched between 3 positions (Low/Mid/High)
to fine-tune the output to best match the sensitivity and impedance of the headphones.

High-Quality Preamplifier with Multiple Analog/Digital Inputs

The UD-507 incorporates the TEAC-QVCS high precision analog volume attenuator
and the powerful TEAC-HCLD2 high current line buffer circuit.
With five digital inputs and two analog inputs (unbalanced and balanced),
a wide variety of devices can be connected.

 

UD-507

Specs

Supported formats  
USB input  
PCM 16/24/32 bit
44.1k/48k/88.2k/96k/176.4k/192k/352.8k/384k 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 In-house designed Discrete DAC TRDD5
Up-conversion up to 384kHz/32-bit PCM, 22.5MHz DSD
Audio inputs  
USB USB Type-C port × 1
USB Type-B port × 1
USB version 2.0
Transfer Mode Asynchronous mode transfer, Bulk Pet
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
Analog (Balanced) XLR ×1 pair (gold-plated)
Input impedance 50kΩ
Input sensitivity 5Vrms
Analog (Unbalanced) RCA pin ×1 pair (gold-plated)
Input impedance 24kΩ
Input sensitivity 2.5Vrms
Bluetooth®  
Bluetooth® version 4.2
Output class Class2 (Range: approx. 33ft/10m)
Supported profiles A2DP, AVRCP
Content protection SCMS-T
Supported codec LDAC™, LHDC, Qualcomm® aptX™ HD, aptX™, AAC, SBC
No. of paired device maximum 8 devices
No. of multipoint connection device maximum 2 devices
Audio outputs  
XLR balanced XLR ×1 pair (gold-plated)
Maximum output level 1kHz, full scale, into 10kΩ
 0dB setting 2.0Vrms
+6dB setting 4.0Vrms
Output impedance 40Ω
RCA unbalanced RCA pin ×1 pair (gold-plated)
Maximum output leve 1kHz, full scale, into 10kΩ
 0dB setting 2.0Vrms
Output impedance 20Ω
Headphone outputs  
Connector 1 1/4” (6.3mm) TRS stereo jacks × 1 (gold-plated)
Connector 2 XLR 4pin jack ×1 (gold-plated)
Connector 3 4.4mm 5-pole Pentaconn jack ×1 (gold-plated)
Maximum output  
Balanced 1200mW + 1200mW (into 100Ω)
Active Ground 900mW + 900mW (into 32Ω)
Unbalanced 900mW + 900mW (into 32Ω)
Supported impedances 16 to 600Ω
Clock section  
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
External control  
12V Trigger out  
Conenctor 3.5mm Monaural Mini jack × 1
Output level 12V
Max. current supply 100mA
Audio performance 192kHz/24bit PCM input, RCA output, DAC mode MULTIBIT
Frequency Response 5Hz to 70kHz (+1/–6 dB)
Total harmonic distortion 0.01% or less (1kHz, LPF: 20Hz to 20kHz)
S/N ratio 105dB or higher (A-weight, 1kHz)
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)×85(H)×249 (D) mm / 11.4”(W)×3.3”(H)×9.8”(D)
Weight 4.9kg / 10.8lbs
Included accessories Power cord, Remote control (RC-1334), AAA Batteries for remote control × 2, feet cushions × 3, Owner's Manual (with warranty)

 

Up-conversion table

Input Frequency Up-converted Frequency
Coax/Opt USB off 2Fs 4Fs 8Fs
32kHz 32kHz 64kHz 128kHz 256kHz
44.1kHz 44.1kHz 44.1kHz 88.2kHz 176.4kHz 352.8kHz
88.2kHz 88.2kHz 88.2kHz 88.2kHz 176.4kHz 352.8kHz
176.4kHz 176.4kHz 176.4kHz 176.4kHz 176.4kHz 352.8kHz
352.8kHz 352.8kHz 352.8kHz 352.8kHz 352.8kHz
48Hz 48Hz 48kHz 96kHz 192kHz 384kHz
96kHz 96kHz 96kHz 96kHz 192kHz 384kHz
192kHz 192kHz 192kHz 192kHz 192kHz 384kHz
384kHz 384kHz 384kHz 384kHz 384kHz
No conversion
* Maximum up-conversion rate is 8Fs.

 

Comparison with previous models

  UD-507 UD-505-X UD-505 UD-503 UD-501
USB DAC TRDD 5 ×1 (L/R) 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 22.5MHz maximum 11.2MHz maximum 5.6MHz maximum
Supported PCM formats 384kHz/32-bit maximum 768kHz/32-bit maximum 768kHz/32-bit maximum 384kHz/32-bit maximum 384kHz/32-bit maximum
Up-conversion (Max) 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: 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 Yes
Current buffer circuit TEAC-HCLD2 TEAC-HCLD2 TEAC-HCLD TEAC-HCLD -
TEAC QVCS circuit
(High-precision volume)
Yes Yes Yes Yes -
Line/balanced outputs Yes Yes Yes Yes Yes
Line parallel/
unbalanced outputs
Yes Yes Yes Yes Yes
High-precision dual clock Yes Yes Yes Yes Yes
External clock input Yes Yes Yes Yes
Preamplifier function Yes Yes Yes Yes
Bulk Pet transmission Yes Yes Yes
Line output level switching
  • Fixed (0 dB)
  • Fixed (+6 dB)
  • Variable
  • Path Thru
  • Off
  • Fixed (0 dB)
  • Fixed (+6 dB)
  • Variable
  • Off
  • Fixed (0 dB)
  • Fixed (+6 dB)
  • Variable
  • Off
  • Fixed (0 dB)
  • Fixed (+6 dB)
  • Variable
  • Off

(Line output on/off selection only when headphones connected)
Front digital input Yes
(USB Type-C)
Yes
(Combined coaxial/optical mini jack)
Yes
(Combined coaxial/optical mini jack)
Yes
(Combined coaxial/optical mini jack)
Analog line inputs 2 pairs (XLR, RCA) 1 pair (RCA) 1 pair (RCA) 1 pair (RCA) -
Bluetooth® receiver Yes Yes Yes
Headphone amplifier circuit Current-strengthening circuit Current-strengthening circuit Current-strengthening circuit Current-strengthening circuit Op-amp
Headphone output connectors/
drive modes
XLR 4pin ×1
  • Balanced
  • Active ground
4.4mm 5-pole ×1
  • Balanced
  • Active ground
Standard 6.3mm × 1
  • Unbalanced
4.4mm 5-pole ×1
  • Balanced
  • Active ground
Standard 6.3mm ×2
  • Balanced
  • Active ground
  • Unbalanced
4.4mm 5-pole ×1
  • Balanced
  • Active ground
Standard 6.3mm ×2
  • Balanced
  • Active ground
  • Unbalanced
Standard 6.3mm ×2
  • Balanced
  • Active ground
  • Unbalanced
3.5mm stereo mini ×1
  • Unbalanced
Feet Stressless Foot v2 Stressless Foot Pin-point foot Pin-point foot Conventional insulated foot
Remote control Yes Yes Yes Yes
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