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Roland Mobile UA USB Headphone Amp

Interface with S1LKi DSP Technology

Dolphin id:105084 Product SKU:UAM10

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Mobile UA is a next-generation USB audio interface based on Roland's newly developed S1LKi DSP technology. This extremely compact, bus-powered USB D/A converter can play both high-quality PCM audio and ultra-high-resolution DSD audio. Capable of up to 4-channels of low-latency output, it can accommodate multiple listeners, or support click tracks and cue monitoring for recording and live performance.

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Suited to high end audiophile listening or use in the studio as a low latency monitoring source. This versatile USB headphone amp is a superb versatile playback device.

  • Worlds smallest USB audio interface that supports both ASIO and DSD
  • High-quality audio playback from newly developed S1LKi audio engine
  • Native playback of 2.8 MHz DSD audio
  • Ultra-compact 4-channel audio output
  • High-powered 158 mW+158 mW (at 40 ohm load) headphone amp
  • Supports ASIO and designed for low-latency operation

S1LKI DSP AUDIO ENGINE SUPPORTS BOTH DSD AND STANDARD PCM PLAYBACK

The Mobile UA supports native playback of DSD audio sampled at 2.8 MHz, and our proprietary S1LKi audio engine also reproduces traditional 44.1 kHz and other PCM audio with extreme precision. By using the same type of 1-bit D/A converter used in DSD, the resulting conversion produces ultra-smooth, unclouded sound when compared to existing D/A conversion.

*5.6 MHz DSD audio is down-sampled internally and played back as 2.8 MHz DSD audio.

FOUR OUTPUTS AND ULTRA-COMPACT DESIGN FOR MOBILE PRODUCTION AND LIVE PERFORMANCE


Ultra-compact and bus powered, the Mobile UA features quality stereo mini-jacks on both the left and right sides. Two people can monitor audio at the same time, or a single musician can use one side for the main output and the other for cue monitoring or a click track. Low-latency ASIO and Core Audio performance provides compatibility with a wide range of professional applications.

*When a jack on one side is configured as an Aux output, any volume adjustments you make on the unit will not be reflected on this jack.

HIGH-PERFORMANCE HEADPHONE MONITORING IN LOUD ENVIRONMENTS

Featuring two channels of 158 MW output at 40 ohms, the Mobile UA’s high-level headphone out supports monitoring situations where isolation from ambient sounds, nearby performers, and crowd noise is essential.

LOW LATENCY FOR MUSIC CREATION AND SOUND EDITING

The Mobile UA inherits Roland’s acclaimed VS Streaming technology for low latency and stable operation, and USB audio streaming and DSP are processed on a single custom chip. This provides mobile music creators pro-level performance for playing virtual instruments and editing tracks in DAW software.

WHAT IS DSD?

DSD, or Direct Stream Digital, is a technology for digitising audio using much higher frequencies than the typical PCM format. Each sample is recorded as a single bit at a sampling rate of 2.8 MHz, which is 64 times that of audio CDs (44.1 kHz). DSD formats that use 5.6 MHz, or 128 times that of CDs, are also widely used. Because DSD is capable of recording at higher levels of precision than audio CDs, it is primarily used for recording and music distribution.

SYSTEM

Number of Audio Playback Channels

  • PCM format: 4 channels / 2channels (selectable by "Output Mode")
  • DSD format: 2 channels

Signal Processing

  • PCM format
  • PC interface: 32 bits
  • DA Conversion *1: 1 bit, 32 bits
  • *1 When "S1LKi Mode" is valid, DA conversion operates on 1 bit.
  • DSD format
  • PC interface: 1 bit
  • DA Conversion: 1 bit

Sampling Rate

  • PCM format
  • PC interface: 352.8 kHz *2, 192 kHz, 176.4 kHz, 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz
  • DA Conversion *3: 3.072 MHz, 2.8224 MHz, 192 kHz, 176.4 kHz
  • *2 If the sampling rate is 352.8 kHz, the number of channels is limited to two channels, and playback is possible only via ASIO/Core Audio.
  • *3 When "S1LKi Mode" is valid, DA conversion operates on 3.072 MHz or 2.8224 MHz.
  • DSD format:
  • PC interface: 5.6448 MHz *4, 2.8224 MHz
  • DA Conversion: 2.8224 MHz
  • *4 5.6448 MHz DSD data is down-converted to 2.8224 MHz for playback.

DSD Format Playback Method

  • DoP version 1.0

Interface

  • Hi-Speed USB

Connectors

  • PHONES jack: Stereo miniature phone type
  • PHONES/LINE jack: Stereo miniature phone type
  • USB port: USB Type micro B

CHARACTERISTICS

  • PHONES, PHONES/LINE
  • Nominal Output Level: -4 dBu
  • Maximum Output Level: +14 dBu
  • Maximum Output Power:
  • 158 mW + 158 mW (L + R, 40 ohms)
  • 44 mW + 44 mW (L + R, 300 ohms)
  • Headroom: 18 dB
  • Frequency Response:
  • 192.0 kHz: 20 Hz–60 kHz (+0/-0.4 dB), 20 Hz–90 kHz (+0/-3 dB)
  • 176.4 kHz: 20 Hz–60 kHz (+0/-0.5 dB), 20 Hz–80 kHz (+0/-2 dB)
  • 96.0 kHz: 20 Hz–44 kHz (+0/-0.2 dB)
  • 88.2 kHz: 20 Hz–40 kHz (+0/-0.2 dB)
  • 48.0 kHz: 20 Hz–22 kHz (+0/-0.2 dB)
  • 44.1 kHz: 20 Hz–20 kHz (+0/-0.2 dB)
  • Residual Noise Level: -101 dBu typ. (IHF-A)
  • Dynamic Range: 115 dB typ.
OTHERS
  • Power Supply: USB Bus Power
  • Current Draw: 500 mA
  • Accessories: Owner’s Manual, Leaflet “USING THE UNIT SAFELY”, USB cable
  • * 0 dBu = 0.775 Vrms

SIZE AND WEIGHT

  • Width: 108.2 mm / 4-5/16 inches
  • Depth: 65 mm / 2-9/16 inches
  • Height: 16 mm / 0-11/16 inches
  • Weight: 300 g / 0 lbs. 11 oz.

£ 245.00 Web price, inc VAT

Ex Vat:
£204.17, VAT at 20.00%
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