TEAC Audio UD-507 USB DAC/Headphone Amplifier/Preamp

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TEAC Audio UD-507 USB DAC / Headphone Amplifier / Preamp

High-power, all-in-one desktop DAC/preamp/headphone amp delivering reference-class performance for dedicated listeners.

The TEAC Audio UD-507 provides best-in-class digital-to-analog conversion and headphone amplification in a compact footprint. Designed with the proprietary “TRDD 5” discrete DAC, the UD-507 supports up to 32-bit/384 kHz PCM and 22.5 MHz DSD playback for ultra-high-resolution digital sources. It features USB Type-B and Type-C inputs, coaxial and optical digital inputs, Bluetooth (LDAC/LHDC/aptX HD/AAC/SBC), plus analog balanced and unbalanced inputs for flexible integration.

On the headphone side, the UD-507 delivers up to 1,200 mW + 1,200 mW (balanced into 100 Ω) and provides three front-panel headphone jacks (¼″ TRS, 4-pin XLR, 4.4 mm Pentaconn) with selectable Low/Mid/High gain settings to match a wide range of headphone models. As a preamp the UD-507 offers high-precision volume control (TEAC-QVCS) and high-current buffered output (TEAC-HCLD2) making it suitable as the central hub for serious systems.

Key Specifications

• Supported Formats (USB): PCM up to 384 kHz/32-bit, DSD up to 22.5 MHz.
• Digital Inputs: USB-Type C ×1, USB-Type B ×1, Coaxial RCA ×1, Optical TOSLINK ×1, Bluetooth v4.2 (LDAC/LHDC/aptX HD/aptX/AAC/SBC).
• Analog Inputs: Balanced XLR ×1 (5 Vrms, 50 kΩ), Unbalanced RCA ×1 (2.5 Vrms, 24 kΩ).
• Analog Outputs: Balanced XLR ×1 (Max 4.0 Vrms), Unbalanced RCA ×1 (Max 2.0 Vrms).
• Headphone Outputs: ¼″ TRS ×1, 4-pin XLR ×1, 4.4 mm Pentaconn ×1 – Balanced up to 1,200 mW + 1,200 mW (100 Ω), Unbalanced 900 mW + 900 mW (32 Ω).
• External Clock Input: BNC ×1, 10 MHz, 50 Ω.
• Power Consumption: 18 W operating, 0.4 W standby.
• Dimensions: 290 × 85 × 249 mm (11.4″ × 3.3″ × 9.8″).
• Weight: 4.9 kg (10.8 lb).

Top 20 Questions About TEAC Audio UD-507 USB DAC / Headphone Amplifier / Preamp

What is the TEAC Audio UD-507 and who is it for?
The UD-507 is a high-performance all-in-one USB DAC, preamplifier and headphone amplifier. It is ideal for serious listeners with high-end headphones and digital sources who want one unit to fulfil multiple roles.

What makes the TEAC Audio UD-507 a DAC, headphone amp and preamp all in one?
The UD-507 includes a USB/Coax/Optical digital input section (DAC), analog inputs and outputs (preamp), and dedicated headphone outputs with high power (headphone amp). This integration allows it to serve as the central component in a system.

What digital formats does the TEAC Audio UD-507 support?
The UD-507 supports PCM up to 384 kHz/32-bit and native DSD up to 22.5 MHz via USB. Coaxial and optical support up to 192kHz/24-bit PCM and DSD64 via DoP. 

Can the TEAC Audio UD-507 drive high-impedance headphones?
Yes. It delivers up to 1,200 mW per channel into 100 Ω in balanced mode, making it capable of driving demanding high-impedance models. 

What headphone outputs does the TEAC Audio UD-507 offer?
The UD-507 provides a front-panel ¼″ TRS jack, a 4-pin XLR balanced jack and a 4.4 mm Pentaconn jack. 

Does the TEAC Audio UD-507 include Bluetooth connectivity?
Yes — the UD-507 supports Bluetooth version 4.2 with codecs LDAC™, LHDC, Qualcomm aptX™ HD, aptX™, AAC and SBC. 

Can I use the TEAC Audio UD-507 as a preamplifier for my speakers?
Yes — with analog outputs (RCA and XLR) and volume control via TEAC-QVCS, the UD-507 can serve as a preamp in a 2-channel or headphone-centric system.

Does the TEAC Audio UD-507 support external clock synchronization?
Yes — it includes a BNC 10 MHz external clock input (50 Ω) allowing synchronization to a master clock in advanced systems. 

What are the analog input options on the TEAC Audio UD-507?
The UD-507 offers one balanced XLR analog input (5 Vrms) and one unbalanced RCA analog input (2.5 Vrms) for integrating other components. 

What is the build quality like on the TEAC Audio UD-507?
The UD-507 uses a 2.8 mm thick top plate, “Stressless Feet v2” isolation, and a floating transformer design to minimise vibration and interference. 

Is the TEAC Audio UD-507 compact?
Yes — it measures 290 × 85 × 249 mm (11.4″ × 3.3″ × 9.8″), making it suitable for small racks or desktop setups. 

What is the weight of the TEAC Audio UD-507?
The unit weighs about 4.9 kg (10.8 lbs). 

Does the TEAC Audio UD-507 support MQA decoding?
Yes — it includes a full MQA decoder supporting digital inputs (excluding Bluetooth) so you can play MQA-encoded studio masters. 

What is the warranty on the TEAC Audio UD-507?
The manufacturer warranty details vary by region. Please check with your dealer for specific coverage.

How many and what digital inputs are on the TEAC Audio UD-507?
It offers USB Type-C ×1 (front), USB Type-B ×1 (rear), one coaxial RCA, one optical TOSLINK, and Bluetooth wireless. 

What is the headphone gain selection on the TEAC Audio UD-507?
The headphone amplifier includes selectable gain modes (Low/Mid/High) to match various headphone sensitivities and impedances. 

What makes the discrete DAC design in the TEAC Audio UD-507 special?
The TRDD 5 discrete DAC is designed in-house by TEAC, emphasising musicality and providing high fidelity for both PCM and DSD sources. 

Can I drive both my headphones and speakers with the TEAC Audio UD-507?
Yes — use the analog outputs for your speakers and the headphone outputs simultaneously if desired. It supports multi-purpose operation.

What is the audio performance (THD/SNR) of the TEAC Audio UD-507?
The UD-507 achieves THD of 0.01% or less (1 kHz, LPF 20 Hz-20 kHz) and S/N of 105 dB or higher. 

Does the TEAC Audio UD-507 require any special setup?
For best performance, connect via asynchronous USB, disable unused outputs, provide stable power and consider isolation for best results. For assistance or product questions, call 443-402-5055 or text 443-402-5064 to reach our team at All Elite Audio, your authorized Maryland dealer with a full home audio showroom.