Vintage / Apt Corporation Holman // Solid-State Preamplifier

SOLD , now part of a Private Collection
The Apt Holman Preamplifier, named after audio legend Tom Holman, stands as a milestone in hi-fi history for its revolutionary approach to sound fidelity and detail, offering an unmatched clarity that brings the listener closer to the original recording. Its sophisticated design and engineering not only cater to the audiophile's quest for the ultimate sound experience but also underscore a legacy of innovation, making it a revered piece among enthusiasts looking to elevate their audio system's performance. This is a near perfect example that includes the factory packaging.
Production
1978-85
Condition
9.5/10
Serial No.
A09127
Orig. MSRP
$447
Restoration
  • Resoldered all input connections
  • Cleaned all control contacts
  • Resoldered connections throughout 
  • Verified control operation and sound
Factory Specs

Type   Solid state stereo preamplifier

Frequency response   20-20,000 Hz ±0.5 dB, with ultrasonic and ultrasonic filters active

Total harmonic distortion   Less than 0.01% THD at rated output (2V) and lower

Input sensitivity   5mV (MM), 320mV (line)

Signal to noise ratio   78dB (MM), 106dB (line)

Output   2V (Pre out), 7V (Pre out Max)

Dimensions   15.04"W x 3.11"H x 8.19"D

Weight   10.58 lbs.

Designer
Tom Holman
Documentation

Apt Corporation Holman Owner's Manual

Apt Corporation Holman Service Manual

Apt Corporation Holman Brochure

Liner Notes

The best of today's stereo preamplifiers are so refined that audible differences between them are more likely to reflect input or output interface problems (with the phono cartridge or the power amplifier) than any intrinsic qualities of the preamplifiers themselves. A young engineer named Tomlinson Holman has devoted much of the past five years to investigating these interface problems, first as chief electrical engineer at Advent Corporation and more recently as a principal of the Apt Corporation. The new Apt/ Holman preamplifier is the tangible result of his investigations. - Stereo Review, 1987

Stock No.
8454927909085
The Apt Holman Preamplifier, named after audio legend Tom Holman, stands as a milestone in hi-fi history for its revolutionary approach to sound fidelity and detail, offering an unmatched clarity that brings the listener closer to the original recording. Its sophisticated design and engineering not only cater to the audiophile's quest for the ultimate sound experience but also underscore a legacy of innovation, making it a revered piece among enthusiasts looking to elevate their audio system's performance. This is a near perfect example that includes the factory packaging.

Production

1978-85

Condition

9.5/10

Serial No.

A09127

Orig. MSRP

$447

Restoration

  • Resoldered all input connections
  • Cleaned all control contacts
  • Resoldered connections throughout 
  • Verified control operation and sound

Factory Specs

Type   Solid state stereo preamplifier

Frequency response   20-20,000 Hz ±0.5 dB, with ultrasonic and ultrasonic filters active

Total harmonic distortion   Less than 0.01% THD at rated output (2V) and lower

Input sensitivity   5mV (MM), 320mV (line)

Signal to noise ratio   78dB (MM), 106dB (line)

Output   2V (Pre out), 7V (Pre out Max)

Dimensions   15.04"W x 3.11"H x 8.19"D

Weight   10.58 lbs.

Designer

Tom Holman

Documentation

Apt Corporation Holman Owner's Manual

Apt Corporation Holman Service Manual

Apt Corporation Holman Brochure

Liner Notes

The best of today's stereo preamplifiers are so refined that audible differences between them are more likely to reflect input or output interface problems (with the phono cartridge or the power amplifier) than any intrinsic qualities of the preamplifiers themselves. A young engineer named Tomlinson Holman has devoted much of the past five years to investigating these interface problems, first as chief electrical engineer at Advent Corporation and more recently as a principal of the Apt Corporation. The new Apt/ Holman preamplifier is the tangible result of his investigations. - Stereo Review, 1987

Stock No.

8454927909085

Vintage / Apt Corporation Holman // Solid-State Preamplifier
Vintage / Apt Corporation Holman // Solid-State Preamplifier
Vintage / Apt Corporation Holman // Solid-State Preamplifier
Vintage / Apt Corporation Holman // Solid-State Preamplifier
Vintage / Apt Corporation Holman // Solid-State Preamplifier
Vintage / Apt Corporation Holman // Solid-State Preamplifier
Vintage / Apt Corporation Holman // Solid-State Preamplifier
Vintage / Apt Corporation Holman // Solid-State Preamplifier
Vintage / Apt Corporation Holman // Solid-State Preamplifier

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