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SPL Director DAC & Preamplifier

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The SPL Director combines two units in one: a reference-class preamplifier with six inputs (2x analog and 4x digital) and both balanced and unbalanced outputs as well as a reference-class DA converter for PCM up to 384 kHz and up to Double Rate DSD (DSD128).

The technical basis of all Professional Fidelity units is the proprietary 120 V Rail Technology, which SPL also call VOLTAiR technology. The name makes reference to the unequalled high voltage of 120 V (+/-60 V DC) and the huge dynamic range of over 140 dB that goes with it. More information on the 120V Rail Technology can be found here. The name 'Director' describes its function pretty well. It is the heard of the stereo system to which all components are being connected: sources, amplifier, active speakers, headphone amps, phono preamplifier etc. It determines what, with what and how loud we hear.

Key Features

  • 120V rail preamplifier with integrated DA converter
  • Four digital inputs: USB, AES/EBU, coaxial, optical
  • DAC: up to 384 kHz (PCM) and DSD 2 (Double Rate DSD, DSD128)
  • Win driver; Apple class compliant
  • Two analog inputs (2x RCA)
  • Balanced and unbalanced outputs (XLR, RCA)
  • Analog volume control with motorized ALPS R K27 "Big Blue" potentiometer; remote controllable (learns any IR remote control)
  • Remote controllable source selection (learns any IR remote control)
  • Avago dot matrix display shows selected input and sample rate frequency for digital inputs
  • Frequency range (analog): 4 Hz to 300 kHz (-3 dB)
  • THD: 0,0008 % (analog), 0,0004 % (digital)
  • Dynamic range: 137,6 dB (analog), 120,8 dB (digital)
  • AMP CTR connection to Performer power amplifier for coupled on/off switching
  • Windows® driver, Apple class compliant
  • Stand-By/power on switch
  • Linear power supply with toroidal transformer
  • Made in Germany

Tech Stuff

Analog Stereo Inputs

  • 2 x RCA, unbalanced (single ended)
  • Impedance: ca. 10 kohms
  • Max. input level: +32,5 dBu

Digital Inputs

  • AES/EBU (XLR), balanced
  • Coaxial SPDIF (RCA)
  • Optical TOSLINK (F06)
  • USB (B)
  • 0 dBFS = max. 24 dBu
  • Converter Chip AD1955

Sample Rates

  • Encoded PCM (kHz): 44.1, 48 , 88.2, 96, 176.4, 192, 352.8, 384
  • DSD: DSD1 (DSD64), DSD2 (DSD128)

Outputs

  • 2 analog stereo outputs

  • Neutrik XLR, balanced, Pin 2 = (+)

  • RCA, unbalanced (single ended)

  • Impedance: ca. 1 ohm (unbalanced), 75 ohms (balanced)

  • max. output level 32,5 dBu

Measurements

  • Frequency range (analog): 4 Hz to 300 kHz ( -3 dB)
  • Crosstalk at 1 kHz: -95 dB (analog); -100 dB (digital)
  • THD: 0.0008 % (analog 0 dBu); 0.0004 % (digital -1 dBfs)
  • Noise (A-weighted): -105.1 dB (analog); -96.8 dB (digital)
  • Dynamic range: 137.6 dB (analog); 120.8 dB (digital)

Internal Voltages

  • Analog: +/- 60 V
  • Digital: + 5 V and + 3.3 V

Power Supply

  • Mains voltage (switchable): 230 V AC / 50 Hz or 115 V AC / 60 Hz
  • Fuses: 230 V: T 500 mA; 115 V: T 1 A 
  • Power consumption: max. 40 VA
  • Standby power consumption: 0.7 W

Dimensions (incl. feet)

  • 278 mm W x 57 mm H x 330 mm D
  • 10.95 in W x 2.24 in H x 13 in D

Weight

  • 3.3 kg; 7.28 lbs (unit only)
  • 4.4 kg; 9.7 lbs (shipping)

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