Great preamp and headphone amp. Worked beautifully with my HD-650s. Strictly as a preamp punches way above it's weight. Recommended by Absolute Sound, excellent reviews Heaf-fi, Tone, etc. Basically as new with original box and remote. Selling because I have a black one.
The HAP-100 is a preamp and headphone amplifier for the audio enthusiast for whom quality headphone listening is a priority. The HAP-100's innovative design offers features never before available at its modest price point. Most significantly, the HAP-100 shares technologies first employed in our flagship P-20 preamp, along with other audiophile-grade developments.
As with the remarkable P-20, the HAP-100 exploits NuForce's most recent work in volume controls. At the unit's core is a switched-resistor ladder network of low-noise, thin-film resistors, one per volume setting, permitting discrete, high-resolution increments of 1dB for the HAP-100's one hundred volume steps.