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The Conductor Phono Preamplifier was designed for the discriminating music listener to provide the highest quality playback of a wide variety of modern and vintage phonograph records. A versatile feature set permits the use of this preamplifier in any high quality audio system.
Technology
  • Flexible Configuration: The CONDUCTOR can be ordered with one to four active cartridge inputs. Inputs 1,2, and 3 are dedicated for Moving Coil (MC) cartridges and Input 4 is dedicated only for Moving Magnet (MM) or High Output Moving Coil (HOMC) cartridge types.
  • Balanced/Unbalanced Inputs: Both balanced (XLR) and unbalanced (RCA) interconnect options are provided for all MC inputs and main outputs. Only RCA input jacks are provided for the MM input option, however all inputs and outputs are transformer coupled for noise elimination and galvanic isolation. There is no gain difference between any paired balanced or unbalanced input or output.
  • Custom Input Transformers: These unique transformers, co-developed between Lundahl and JRDG, are wound with high purity copper wire sourced from Cardas Audio and specifically designed with a low turns ratio to ensure minimum copper losses and extremely low noise in conjunction with the active low noise circuitry directly following the transformers
  • Efficient Loading Process: Phono cartridge loading is performed by individual thin-film resistors inserted on the input transformer secondary with precision relays, selected by rear panel mounted toggle switches for easy switching.
  • Adjustable MC Gain: Any MC input can be modified for higher gain for use with low output phono cartridges. An additional 6 dB of gain is available.
  • Maximized Vibration Control: All of the active circuitry is elastomerically mounted within a chassis machined from a solid block of aircraft grade 6061 barstock aluminum, providing resonance control and shielding from external radio frequency interference.
  • Break-in Assisted: To assist the break-in of all internal circuitry, an Inverse RIAA Network board is included with the CONDUCTOR. This device is installed between any line level output such as a tuner or CD player and any active input of the CONDUCTOR.
 
Specifications
Overall Gain43 dB MM, 53 dB High Output MC; 68 db standard MC, 74 dB Low Output MC
Max. Output Level 16V rms, balanced outputs
RIAA Conformance+/-0.15 dB, 30 Hz - 20kHz
S/N Ratio68 dB, ref. 0.5 mV@1 kHz, unweighted
THD0.0015%. 30 Hz -20 kHz
CMRR110 dB, 20 Hz - 20kHz
Weight25 lbs/11.33 kg
Dimensions: (H/W/D)3.5” x 15.5” x 9.75”
88.9mm x 393mm x 248mm
 
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