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  • Nuforce ICON-HDP-SILVER High Performance Digital to Analog Converter, Headphone Amp and Pre Amplifier (Silver) (Discontinued by Manufacturer)
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Nuforce ICON-HDP-SILVER High Performance Digital to Analog Converter, Headphone Amp and Pre Amplifier (Silver) (Discontinued by Manufacturer)

by NuForce

Available from these sellers.
  • USB 2.0 Full Speed compliant and 1.1 supported, 8-96kHz/16-24-bit (88.2kHz is not supported)
  • S/PDIF input: Coaxial up to 192kHz/24-bit or Optical up to 192kHz/24-bit
  • Analog input: 3.5mm or RCA input
  • Audiophile-grade DA converter
  • Low-distortion, high-current headphone amplifier
1 used from $349.00

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Product Specifications

Brand NameNuForce
Output Wattage288 watts
Color NameSilver

Product Details

  • Product Dimensions: 6 x 4.5 x 1 inches ; 1 pounds
  • Shipping Weight: 3.2 pounds
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B00370U0OG
  • Item model number: ICON-HDP-SILVER
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (15 customer reviews)
  • Date first available at Amazon.com: February 4, 2010

Product Description

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. Nuforce USB Audio devices are designed to work with x86 architecture.  Tablet devices running Windows 8 (RT) are not supported.

Customer Reviews

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See all 15 customer reviews
This is also a very flexible unit.
E. Hess
It definitely feels cheap, so if I wanted to transport the HDP, I'll probably need to buy a separate case.
K. Hou
I use the power hungry AKG K702 headphones, and it does a masterful job.
Paul Henderson

Most Helpful Customer Reviews

14 of 14 people found the following review helpful By J. Kohn on August 4, 2010
Verified Purchase
I purchased this for use at my computer because I could connect powered speakers to it as well as my headphones. The headphones are Sennheiser HD650's, and the speakers are Audioengine A5's (chosen to be bit more forgiving of rock and pop recordings which can sometimes sound too harsh on more revealing equipment). My music library is in FLAC format, a combination of CD rips, high-res releases from audiophile labels, and DVD-A rips. I'm using the USB DAC of the HDP.

The DAC is quite good. I don't claim to be a golden-ear who can hear minute differences between mega-priced audio components and cables, but I do care about sound quality. I'm of the belief a DAC should be transparent, not adding its own colorations to the sound (you choose your amp and speakers/headphones for that if desired). The HDP delivers in this regard, with excellent dynamics, deep clean bass, and revealing highs.

The headphone amp is sufficient to drive my 650's louder than I would want to. I usually have volume between 1/2 to 3/4 (depending on source material) when using headphones. That's a bit higher than I would have expected, but means I still have some headroom so I think it's sufficient. The sound is never fatiguing with this combo, even at high volume levels.

In addition to its reputed audio quality, I chose the HDP because of several key features:

- Both headphone and pre-amp outs, with auto switching (speakers disabled when headphones are plugged in).

- High quality analog volume control for both headphone- and preamp-outs.
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9 of 9 people found the following review helpful By K. Hou on August 12, 2010
Verified Purchase
I've had the unit for about 3 months now. Overall, I would give it 4.5/5 stars.

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Here were my initial impressions on the first day:
The unit was packaged very nicely when it arrived. What I didn't like was the packaging within the box. The HDP and its accessories were stuffed onto a thin plastic with a velvet texture on one side. It definitely feels cheap, so if I wanted to transport the HDP, I'll probably need to buy a separate case.

The silicon stand that the HDP comes with feels solid and securely holds the HDP in place. What I didn't like is how it smelled like feet (chemical smell) when I got it. I tried washing it with soap, which helped the problem slightly.

With the unit standing upright on the stand with the volume knob at the top, the off position is at 7 o'clock, and the max position is at 5 o'clock. There is no sound that comes from the unit until the knob is turned to 8:45-9 o'clock. The volume will suddenly come up at that point. I can only hear channel imbalance between 8:45-9 o'clock, where you can actually hear the slightest bit of sound from your headphones. Past this, it sounds very even. I use the HDP with my HD650 almost exclusively. There's no turn-on popping sound, and it's completely silent with no music playing until I turn the volume knob to 3 o'clock, where hissing begins. I can't imagine anyone needing to turn it past 12 o'clock, so the hissing isn't an issue.

There is a little bit of play in the USB (type B) plug when it goes into the HDP. It's not a tight fit, and the cord wiggles a little bit.

I wish they designed the power plug that goes into the HDP a little better.
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8 of 8 people found the following review helpful By metamorphis8 on November 28, 2011
Verified Purchase
I have used the HDP as a desktop hub for all my computer-based listening for about six months. Its connections and footprint made it the most suitable contender for a high-quality interface to sit on a desktop without taking up too much space. I have it connected to a MacBook Pro and a set of AudioEngine 2 speakers. I use a pair of Sennheiser 535's and Beyerdynamic DT 880' 600 ohm as my primary headphone inputs. All in all, the fidelity of the HDP is excellent given its price point and its size. I own a UDAC2, which is a wonderful and tiny addition to any computer-based music set-up, and the HDP is much better in its sound reproduction. However, my primary reason for giving this device three stars is its build quality, and second, its relatively low power.

At first, the unit appears very well made, with a brushed aluminum cover and solid knobs. However, I often use the device in a darkened environment, and I noticed that light from the internals was leaking from the right side of the faceplate. Upon closer inspection, I could see that the front plate did not align properly with the aluminum case. Moreover, as others have pointed out, the unit stays on, even when the power is turned off. When I powered the unit down, an internal red light came on, and it was clearly visible through the gap in the faceplate. I contacted NuForce service, and they agreed to send out a new unit, but only after they had received my faulty unit. I complied, and had to go without desktop audio for ten days, which is an annoyance, since I use my audio setup for music creation as well as listening. When the second unit arrived, I was dismayed to find that the light bleed was even worse. Back on the phone to customer support, who this time agreed to send me yet a third unit. Guess what?
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