NuForce Icon HDP
"World-class performance from your digital
High Performance Headphone Amp, DAC and Preamp
The Nuforce Icon HDP incorporates a full-speed USB DAC (24bit/96kHz)
and full-function S/PDIF D/A converter (24bit/192kHz), plus a
headphone-amplifier circuit and preamp output. Supporting digital USB,
S/PDIF in coaxial and 3.5mm optical (3.5mm) modes, along with an analog
line input, the HDP accommodates all manner of audio devices. The Icon
HDP, which has been designed to serve as the heart of a high-performance
audio system, competes head-on with DACs and preamps costing several
times its price.
Note: The Icon HDP employs the same DAC as our high-end CDP-8 (MSRP
$1450.00) and a preamp similar to that of the P-8S (MSRP $1650.00). The
following design features contributed to the stellar performance of the
- The digital input has no capacitors in its signal path. The
analog input utilizes a single DC-decoupling capacitor.
- Components along the signal path are minimized.
- The 24/96 USB interface outputs a I2S signal to a high-quality
- The digital circuit occupies a separate daughter board.
- The DAC chip consists of four internal 24/192kHz DACs that
provide a fully differential and balanced output. The differential
signal's DC offset operates without a need for decoupling caps.
- Digital and analog voltages each have separately isolated
internal power regulations.
- RCA or 3.5mm when inserted
- S/PDIF - Coaxial or 3.5mm Optical when inserted. Coaxial up
to 192kHz/24-bit or Optical up to 192kHz/24-bit
- Coaxial input impedance 75 Ohm
- USB 1.0 and 1.1 up to 44.1kHz/16-bit, USB 2.0 Full-Speed up
- 88.2 kHz is not supported
- 2.6 Vrms (cuts off when headphone is inserted)
- Output impedance 100 Ohm
- 6.3mm full-size headphone output jack drives headphones up
to 600-Ohm (96 mW@600-Ohm)
- Output impedance 10 Ohm
Headphone power spec:
- 288mW rms @ 30 Ohm
- 210mW rms @ 120 Ohm
- 152mW rms @ 300 Ohm
- 123mW rms @ 500 Ohm
- 96mW rms @ 600 Ohm
- 59mW rms @ 1200 Ohm
- 43mW rms @ 1700 Ohm
- 35mW rms @ 2000 Ohm
SNR > 100dB
- 12-15V, 1.6A, 100-240VAC (Worldwide AC).
Package Contents Include
- Toslink to optical mini adapter
- 6.3mm stereo plug (male) to 3.5mm stereo connector (female)
- Silicone stand
- AC adaptor (15V, 1.6A, 100-240VAC)
- Linear power supply
- High performance USB cable