Meridian Audio Prime D/A headphone amplifier Specifications

Sidebar 1: Specifications

Description: Digital-to-analog headphone amplifier with optional Prime Power Supply. Sample rates supported: 44.1, 48, 88.2, 96, 176.4, 192kHz. Digital inputs: asynchronous USB mini (Prime), USB Type B (Prime Power Supply). Analog inputs: one pair single-ended (RCA), one stereo 3.5mm jack. Analog outputs: single-ended (RCA), two headphone (¼" jack), one headphone (3.5mm jack). Maximum output voltage: 3.1V (RCA), 3V (headphones). Output impedance: not specified (RCA), <0.1 ohm (¼"), 2.2 ohms (3.5mm). Frequency response: DC–70kHz, +0/–1dB. DC–200kHz, +0/–3dB. Signal/noise: >100dB, A-weighted or CCIR-weighted. Total harmonic distortion: <0.001% (RCA), <0.002% (headphones).
Dimensions: Prime and Prime Power Supply, each: 6.3" (160mm) W by 2" (50mm) H by 5.9" (150mm) D. Weights: Prime, 2 lbs (0.9kg); Prime Power Supply, 3.5 lbs (1.6kg).
Finish: Silver metallic.
Serial numbers of units reviewed: P1HA-100125 (Prime), P1PS-000001 (Prime Power Supply).
Prices: $2000 (Prime); $1250 (Prime Power Supply). Approximate number of dealers: 93, plus direct from Meridian.
Manufacturer: Meridian Audio Ltd., Latham Road, Huntingdon, Cambridgeshire PE29 6YE, England, UK. Tel: (44) (0)1480-445678. Fax: (44) (0)1480-445686. US distributor: Meridian America Inc., 110 Greene Street, Suite 407, New York, NY 10012. Tel: (646) 666-0140. Fax: (646) 666-0152. Web:

Meridian Audio Ltd.
US distributor: Meridian America Inc.
110 Greene Street, Suite 407
New York, NY 10012
(646) 666-0140

Lofty's picture

I can't fathom how anyone can watch a feature length film on a fifteen inch screen. It's all the more unfathomable when you add high quality sound to the equation.

cas's picture

the bottle neck in the Prime System is the PPS USB cable. Change the cable, please. I use the Audioquest Coffee between the PHA and the computer AND(!) between the PHA and the PPS.
I've asked Meridian why they deliver with the Prime Power Supply (PPS) an USB cable from Explorer. The audio quality level of the DACs is very different. They answered that the cable is to let the customers to TRY(!) the PPS as soon as possible. Later on they can choose a cable that they prefere :) And belive me you would prefere...