Dual monaural USB DAC/headphone amplifier supporting DSD512 and PCM32/768
The UD-505 is a flagship dual monaural USB DAC with an integrated fully-balanced headphone amplifier, that fuses high-end audio design concepts and TEAC’s decades of audio design experience, in an A4-sized footprint.
Like its predecessor models, the UD-501 and UD-503, it employs a dual monaural circuit design to process audio signals with even greater purity, with the latest VERITA AK4497 DAC chip used on each of the two channels. This improves the S/N (signal to noise) ratio by processing each channel individually in monaural mode, as well as delivering DSD512 (22.5MHz) native and 768kHz/32-bit PCM playback capabilities.
The Analog section, which is one of the keys to sound quality, includes four TEAC-HCLD buffer amp circuits process different drive modes, – fully-balanced drive for balanced output, and parallel drive mode for unbalance output, – to achieve enhanced acoustic expressive.
The headphone section is remarkable. A totally new 4.4mm headphone jack, called Pentaconn, is employed, allowing balanced and active ground connections within a single jack, while conventional 1/4″ phone jacks are also provided.
In addition to a wide range of digital and Analog inputs, a Bluetooth® receiver supporting LDAC™ and Qualcomm® aptX HD™ allows you to enjoy high-quality wireless audio streaming from your smartphone on this flagship USB DAC.
The UD-505 is a compact and high-spec USB DAC and headphone amplifier that supports today’s high sampling rate Hi-Res formats.
Features at a glance
- Hi-Res audio playback supporting DSD512 (22.6MHz) and PCM 768kHz/32-bit PCM
- Dual monaural circuit design with a high-end AKM VERITA AK4497 DAC on each left and right channel
- 5 types of PCM digital filters and 2 types of DSD digital filters
- Up-conversion up to 24.5MHz DSD and 384kHz/32-bit PCM
- Dual on-board clocks for 44.1kHz and 48kHz frequencies, and 10MHz external clock input
- Bluetooth® receiver supporting LDAC™ and Qualcomm® aptX™ HD
- TEAC-HCLD output buffer circuit and TEAC-QVCS volume control for high quality sound
- Dual toroidal-core power transformers
- Digital Isolator for separated digital and Analog sections
- 4.4mm 5-polar Pentaconn jack and dual 1/4” TRS jacks for balanced and active-ground drives * ”Pentaconn” is a registered trademark of NIPPON DICS Co., Ltd., complies with the RC-8141C JEITA standard
- TEAC’s patent-registered pin-point feet in three positions for the perfect installation * Japan patent No. 4075477 and No. 3778108
- Bulk Pet USB transferring technology with four transfer modes for various sound characters * ”Bulk Pet” is a registered trademark of Interface Corporation.
- USB audio port for Hi-Res audio input from Windows/Mac
- Coaxial and optical digital inputs on both front and back
- Convenient Analog LINE input to use the UD-505 as a pre-amplifier
- Analog outputs with balanced XLR and conventional unbalanced RCA outputs
- High-contrast full-graphic organic EL display with dimmer
- Full-metal body with an A4-sized footprint
- Free TEAC HR Audio Player for DSD512 and PCM32/768 playback
Spec description
| 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 | Asahi Kasei Microdevices AK4497×2 |
| Up-conversion | up to 384kHz/32-bit PCM, 22.5MHz DSD |
| Digital filters | |
| PCM filters | Sharp Roll Off, Slow Roll Off, Short Delay Sharp, Short Delay Slow, Low Dispersion, off |
| DSD cutoff frequencies | Narrow : 39kHz (at 2.8M), 78kHz (at 5.6M), 156kHz (at 11.2M) or 312kHz (at 22.5M) Wide : 76kHz (at 2.8M), 152kHz (at 5.6M), 304kHz (at 11.2M) or 608kHz (at 22.5M) |
| 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 | 4.0 |
| 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 | 4.2kg / 9.3lbs |
| 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) |
Fast Shipping with Professional Packaging
We provide a variety of shipping options owing to our long-standing relationships with UPS, FedEx and DHL. Our warehouse staff are highly trained to package your goods exactly as per the specifications we offer. Prior to shipping, your goods are carefully examined and securely secured. We ship to thousands of customers every day across multiple countries. This is a testament to our commitment to be the largest online retailer globally. Both Europe as well as the USA have warehouses and distribution centres.
Note: Orders with more than one item are assigned a processing period in accordance with the item.
Before shipping Our team will conduct a thorough inspection on the items you purchased. The majority of orders are delivered within 48 hours. The delivery time varies between 3-7 days.
Returns
The stock is constantly changing and not fully managed by us due to the involvement of several different parties, such as the factory and our warehouse. The actual inventory may fluctuate at any time. It's possible that your order may be unable to fill when you have placed the order.
Our policy lasts thirty days. If 30 days have passed by since your purchase, unfortunately we can't offer you a refund or exchange.
Your item should be in the original packaging and in good condition. It must also not be used. The item should be in its original packaging.
Related products
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Stereo Amplifier
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
Network Streamer
CD Player
Headphone Amplifier
Network Streamer
Commercial Amplifer
Yamaha XDA-QS5400 MusicCast 4 Zone-8 Channel Integrated MusicCast Amp SoundHub
Network Streamer
Network Streamer