Pro-Ject Pre Box S2 Digital D/A headphone amplifier Specifications

Sidebar 1: Specifications

Description: DAC–headphone amplifier. Digital inputs: USB, coaxial (RCA), optical (TosLink). D/A-converter: two 32-bit ESS9038Q2M. Resolutions supported: USB: MQA, PCM up to 32-bit/768kHz, and DSD up to DSD512; optical and coaxial S/PDIF: PCM up to 24/192. Reconstruction filters: 8, selectable on front panel. Frequency range: 20Hz–20kHz. Analog outputs: ¼" (6.3mm) headphone, one pair RCA. Output voltage: 2.05V. Minimum recommended headphone impedance: 8 ohms. Headphone output power: 6.6mW into 600 ohms, 68mW into 32 ohms. THD: 0.0003% at 0dB, 2V RMS, 1kHz. Dynamic range: 124dBA. Outboard power supply (included): 5V/1A DC.
Dimensions: 4.1" (103mm) W by 1.4" (36mm) H by 4.1" (103mm) D, or 4.8" (122mm) D including knob & connectors. Weight: 0.8 lb (366gm) without power supply, 1.3 lb (600gm) with power supply.
Serial number of unit reviewed: 17A059178.
Price: $399. Approximate number of dealers: 300. Warranty: 2 year, parts & labor.
Manufacturer: Pro-Ject Audio Systems, Audio Tuning Vertriebs GmbH, Wirtschaftspark A5, Analogweg 1, 2130 Mistelbach, Austria. Tel: (43) 1-544-858-0400. Web: www.project-audio.com. US: Sumiko Audio, 6655 Wedgwood Road N. Suite 115, Maple Grove, MN 55311-2814. Tel: (510) 843-4500. Web: www.pro-jectusa.com, www.sumikoaudio.net.
Pro-Ject Audio Systems, Audio Tuning Vertriebs GmbH
US: Sumiko Audio
6655 Wedgwood Road N. Suite 115
Maple Grove, MN 55311-2814
(510) 843-4500
www.pro-jectusa.com
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