Preamplifiers

McCormack LD-2 Preamplifier and DNA-250 Stereo Power Amplifier

ARTICLE INDEX

McCormack LD-2 and DNA-250

Introduction

In 1997, McCormack Audio was purchased by Conrad-Johnson, known primarily for their fine tube amps and preamps. A new line of McCormack amplifiers and preamplifiers has since been refined and updated. They have the same high quality and value that Steve McCormack put into his designs in California, but these current products are basically an entirely new line (and are built in Virginia). The LD-2 (line drive preamplifier) and DNA 250 (two-channel power amplifier) are designed with the audiophile in mind, but at a price that puts it into the reach of the masses. This review offered me some interesting challenges and some surprising rewards. Did I mention I broke down and got an iPhone? I will explain why I mention this at the end of my review.

Specifications

  • LD-2 Line-Stage Preamplifier
  • Gain: 20 dB
  • THD: <0.1 % at 1.0 Volts RMS Output
  • Hum and Noise: 100 dB Below 2.5 Volts RMS Output
  • Dimensions: 3.5" H x 19" W x 11.25" D
  • Weight: 18 Pounds
  • MSRP: $2,495 USA
  • LD-2 Optional Phono Stage
  • Phono Sensitivity (Selectable):
  • Low Gain: 5mv Input for 0.5v Output @ 1 kHz
  • High Gain: 0.9mv Input for 0.5v Output @ 1 kHz:
  • Low Gain: -80 dB Relative to 10 mv Input
  • High Gain: -75 dB Relative to 100 mv Input
  • DNA-250 Stereo Power Amplifier
  • Output Power: 250 Watts/ch RMS into 8 Ohms, 400 Watts/ch into 4 Ohms at < 1% THD
  • Sensitivity: 2.0V RMS for Full Rated Output
  • S/N Ratio: 110 dB Below Rated Power
  • Dimensions: 6.75" H x 19" W x 16" D
  • Weight: 53 Pounds
  • MSRP: $3,995
  • McCormack Audio