LP, 45, and 78-rpm Disc Playback Equipment

Phono Preamplifiers For Archival Re-recording of Disc Records

Designed to meet the needs of record collectors, archivists, broadcasters, sound preservation specialists and professional studios who want to preserve the sound of disc records without added distortion ad noise while retaining the historical sound for future generations. Disc Archivist preamplifiers gives you archival sound quality without the need to be a sound archivist and have been designed from practical experience gained from working at a major sound archive.
  • Twelve pre-defined equalization curves corresponding to the major recording standards used for disc recording from the earlist acoustic discs to modern audiophile LPs. Original record label documents were used as references for the design of the twelve equalizers so that you can be assured of hisorically-correct equalization.
  • 4-band studio-type program equalizer to compensate for work discs or discs recorded contrary to standard equalization curves.
  • Gain trim to optimize signal-to-noise ratio and to minimize distortion.
  • Adjustable cartridge loading.
  • Sound quality has been voiced for optimum quality for the cartridges most often used by record collectors:
    • Audio-Technica AT-MONO 3/SP
    • Audio Technica AT3482P/78
    • Grado 78C phono cartridge
    • Grado 78E phono cartridge
    • Ortofon OM78
    • Rega RB78
    • Rega RB78-2
    • Shure M44-7
    • Shure M55E
    • Shure M70E
    • Shure M71E
    • Shure M78S
    • Shure M92E
    • Shure M95ED
    • Shure ME75
    • Stanton 500
    • Stanton 520
  • Switches between Vertically-cut and Laterally-cut discs.
  • Tape monitor.
  • Optional volume expander.
  • Optional "Scott Dynaural"-type single-ended noise reduction.
  • Broadcast quality, designed for 24-hour operation.
  • USA and Foreign Patents Applied For. Available in reference quality solid state electronics for clinically-accurate re-recording and reporoduction of disc records, or studio quality vacuum tube electronics to retain the vintage tone of the records as they would have sounded when new so that the listener can experience the sound of the discs aas they were originally heard.
    Disc Archivist S
    Disc Archivist T

    Disc Archivist S

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    • All solid state design using proprietary KVG Laboratories 8800 series audio opamps and hand-selected Analog Deviced AD797 precision low-noise ultra-low distortion opamps.
    • Transformerless outputs for unexcelled clarity, phase response and low distortion.
    • KVG Laboratories "Polypower" Power Supply has no electrolytic capacitors for ultra-quiet operation.
    • Wide dynamic range: greater than 95 dB from noise floor to maximum output, all without clipping.
    • Low noise floor.
    • Wide dynamic range: greater than 95 dB from noise floor to maximum output, all without clipping.
    • Typical THD less than 0.05% at +15 dBm into 600 ohms load.

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     Recording studio quality single-ended Class A vacuum tube (valve) circuitry, with a wide non-linear region between clean and clipping.
    • All-triode single-ended Class A design.
    • Transformerless outputs for unexcelled clarity, phase response and low distortion.
    • Hand-selected 12AX7A input and driver valves.
    • Hand-selected 12AT7A output valves.
    • KVG Laboratories "Polypower" Power Supply has no electrolytic capacitors for ultra-quiet operation.
    • Wide dynamic range: greater than 85 dB from noise floor to maximum output, all without clipping.
    • Low noise floor.
    • Typical THD less than 0.5% at +15 dBm into 600 ohms load.

    Proudly made in the USA by our engineers here on the Kansas plains.

    Delivery Times

    Delivery times depend on the availability of the parts we need for your design, the length of time it may take to find a rare part or to have a custom-made part delivered, and the complexity of the design itself. Because each product is made by hand to the customer's individual requirements we cannot simply pull an item off the shelf and deliver it to you, so you will be advised of a projected delivery time when we discuss your order with you.

    Click Here for a brochure about KVG Laboratories Custom Engineering

    Specifications subject to change without notice. KVG Laboratories is always working to improve and refine our products.
    KVG Laboratories donates a portion of all sales to MusiCares, which provides a safety net for music people in times of need.