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TEAC Introduces the UD-507 DAC/Preamp/Headphone Amplifier

Borrowing design concepts from TEAC’s top-of-the-line 700 Series, the standout feature of the UD-507 is TEAC’s new proprietary “TRDD5” (TEAC Reference Discrete DAC) designed to produce a crystal-clear soundstage and accurate imaging.

TEAC UD-507 USB DAC / Preamplifier / Headphone Amplifier in Silver

Shopping for a stereo preamp with a good built-in DAC and headphone amp can be frustrating, but TEAC has announced a solution that might be worth checking out, its newly announced UD-507

Built on the foundation of its previous UD-500 series models with some added touches borrowed from its higher-end UD-700 series, the UD-507 is designed to provide the best combination of sound quality and user flexibility in a compact form factor. 

TEAC UD-507 Front in Silver
TEAC UD-507 Rear in Silver

Core Features

DAC: The UD-507 incorporates TEAC’s proprietary “TRDD5” (TEAC Reference Discrete DAC). This DAC is designed with musicality as the top priority, following in the footsteps of the discrete DAC design applied to the higher-end 700 series. 

From Jo Yoshida, TEAC Brand Manager: “The most important feature of the UD-507 is the newly designed and manufactured “TRDD 5” discrete D/A converter. The design goal of this in-house developed discrete DAC is to provide a more immersive musical experience for all listeners. Thanks to the clear soundstage and precise imaging, you will discover the breadth and articulation of your favorite artists that you never noticed before.”

Headphone Amplifier: The UD-507 is a balanced Dual Mono headphone amplifier featuring the TEAC-HCLD2 (TEAC High Current Line Driver). This feature is noted for its high current supply capability. Compared to the previous model, the maximum output power has been 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.

Preamplifier: In addition to headphone listening the UD-507 incorporates a preamplifier that allows connection of needed analog and digital sources, as well as outputs (both unbalanced and balanced) for connecting the UD-507 to an external amplifier or another compatible audio system.

The UD-507’s preamp features the TEAC-QVCS (Quad Volume Control System). This is a high-precision analog volume attenuator, as well as the  PTEAC-HCLD2 high current line buffer circuit. 

Additional Features

TEAC UD-507 Rear Connections Closeup

Expanding on its core DAC, Heaphone Amp, and DAC the UD-507 also includes the following additional features that support a quality music listening experience and ease of use. 

  • Full-stage dual monaural/balanced circuit configuration that supports better channel separation
  • 22.5MHz DSD and 384kHz/32bit PCM playback as a USB DAC.
  • 5 digital inputs (USB Type-B (rear), USB Type-C (front), Coaxial, Optical, Bluetooth) and 2 analog inputs (RCA, XLR)
  • Full MQA decoder, supporting all digital inputs except Bluetooth.
  • “RDOT-NEO” (Refined Digital Output Technology NEO) up-conversion function (2xFs/4xFs/8xFs)
  • Bluetooth receiver supporting high-quality audio codecs including LDAC and aptX HD
  • Proprietary “TEAC-HCLD2” output buffer circuit for powerful current transmission
  • “TEAC-QVCS” high-resolution analog preamplifier circuit
TEAC UD-507 Front Bottom in Silver

TEAC 500 Series

TEAC 500 Series ModelUD-507UD-505XUD505 UD-503 UD-501 
Price$2,099.99$1,849.99DiscontinuedDiscontinuedDiscontinued
USB DACTRDD5 x 1 (L/R)ES9038 x 2 (L/R)AK4497 X 2 (L/R)AK4490 X 2 (L/R)PCM 1795 x 2 (L/R)
DSD Format Support22.5Mhz/32-bit Max22.5Mhz Max22.5Mhz Max11.2Mhz Max5.6MHz Max
PCM Format Support384kHz/32bit Max768kHz/32bit Max768kHz/32bit Max384kHz/32bit Max384kHz/32bit Max
Up-Conversion (Max)PCM 384kHz/32 bit (2 fs, 4 fs, 8 fs)DSD: 24.5MHz (DSD 256/DSD 512)
PCM 384kHz/32 bit (2 fs, 4 fs, 8 fs)
DSD: 24.5MHz (DSD 256/DSD 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/24bit (fixed)
Dual MonoYesYesYesYesYes
Current Buffer CircuitTEAC HCLD2TEAC HCLD2TEAC HCLDTEAC HCLD
TEAC QVCS CircuitYesYesYesYes
Line/Balanced InputsYesYesYesYesYes
Line/Balanced OutputsYesYesYesYesYes
Line Parallel Unbalanced OutputsYesYesYesYesYes
High Precision Dual ClockYesYesYesYes
External Clock InputYesYesYesYes
Preamp FunctionBult Pet TransmissionYesYesYes
Line Output Level SwitchingFixed (0db)
Fixed (+6dB)
Variable
Path Thru
Off
Fixed (0db)
Fixed (+6dB)
Variable
Off
Fixed (0db)
Fixed (+6dB)
Variable
Off
Fixed (0db)
Fixed (+6dB)
Variable
Off
Line output on/off selection only when headphones are connected
Front Digital InputYes (USB Type C)Yes (combined coaxial/optical mini jack)Yes (combined coaxial/optical mini jack)Yes (combined coaxial/optical mini jack)Mp
Analog Line Inputs2 pairs (XLR, RCA)1 pair (RCA)1 pair (RCA)Yes (combined coaxial/optical mini jack)Mp
Bluetooth ReceiverYesYesYesMp
Headphone Amplifier CircuitCurrent Strengthing CircuitCurrent Strengthing CircuitCurrent Strengthing CircuitCurrent Strengthing CircuitOp Amp
Headphone Output com nectors/Drive modesXLR 4pin x 1 (Balanced, Active Ground)
4.4 mm 5 pole x 1 (Balanced, Active Ground)
Standard 6.3mm x1 (Unbalanced)
4.4 mm 5 pole x 1 (Balanced, Active Ground)
Standard 6.3mm x1 (Balanced, Active Ground, Unbalanced)
4.4 mm 5 pole x 1 (Balanced, Active Ground)
Standard 6.3mm x1 (Balanced, Active Ground, Unbalanced)
Standard 6.3mm x1 (Balanced, Active Ground, Unbalanced)3.5 mm stereo mini-jack x 1 (Unbalanced)
FeetStressless Foot v 2Stressless FootPinPoint FootPinPoint FootConventional Insulated Foot
Remote ControlYesYesYesYesNo
Dimensions  (WHD)290 × 85 × 249 mm 
11.4 × 3.3”× 9.8 inches
290 × 84.5 × 248.7 mm 11.4 ×3 .3 × 9.8-inches290 × 84.5 × 248.7 mm 
11.4 ×3.3 × 9.8 -inches
290 × 81.2 × 248.7 mm 
11.4 × 3.2 × 9.8 -inches
290 × 81.2 × 244  mm 
11.4 × 3.2 × 9.6 -inches
Weight4.9kg / 10.8lbs4.1kg / 9.1lbs4.2kg / 9.3lbs4.2kg / 9.3lbs4.0kg / 8 15/16 lbs
Finishes Black/SilverBlack/SilverBlack/SilverBlack/SilverBlack/Silver
TEAC UD-507 Remote Control

Initial Thoughts

The TEAC UD507 packs in a lot – combining a DAC, preamp, and headphone amp provides a lot of music listening and setup flexibility either as a standalone unit or integrated into an external audio system. The only thing missing is built-in network streaming (although Bluetooth is built-in).

With a $2,100 price tag, the UH-507 is expensive when you consider that WiiM and Schiit Audio offer a line of similar products at much lower prices, but the UD-507 has more extensive connectivity and digital file compatibility that are worth a good look.

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TEAC UD-507 in Silver and Black Angled Towards each other

Availability and Pricing

The Teac UD-507 will be available for purchase in June 2024 for $2,099.99 USD from TEACUSA,com and select dealers.  

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