Called "the best preamplifier ever designed" by Ken Rockwell, the Apt/Holman preamplifier is a HiFi legend. Imperceptible noise and distortion. Designed by the brilliant Tom Holman, who invented both 5.1 audio and THX motion picture sound, this preamplifier even has a patented variable stereo expansion circuit. The Holman preamp is so well thought out that its precise bandlimiting not only prevents distortion in other components, it sandboxes inactive signals coming into the unit, making the active signal the only signal. If you are serious about sound, you simply must audition the Apt/Holman.
- Production
- 1978-85
- Condition
- 8/10
- Serial No.
- APT-1-NA
- Orig. MSRP
- $447
- Restoration
- Full 30-point service check
- Cleaned controls, switches, and chassis
- 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
- Packing
- Prepare to be impressed. We have arguably the best packing process around. This piece will ship double-boxed, and fully insulated, taking extra care to ensure there's no pressure against the face. Then the inner box is suspended inside a double-walled outer box using shock-resistant foam corners.
- Shipping
- This piece ships to the contiguous United States for a flat rate of $75, which includes our packaging and our insurance. Of course, we'll ship anywhere in the world, just drop us a line and we'll give you an estimate – even if you're just curious.
- Stock No.
- C8190472618205
Called "the best preamplifier ever designed" by Ken Rockwell, the Apt/Holman preamplifier is a HiFi legend. Imperceptible noise and distortion. Designed by the brilliant Tom Holman, who invented both 5.1 audio and THX motion picture sound, this preamplifier even has a patented variable stereo expansion circuit. The Holman preamp is so well thought out that its precise bandlimiting not only prevents distortion in other components, it sandboxes inactive signals coming into the unit, making the active signal the only signal. If you are serious about sound, you simply must audition the Apt/Holman.
Production
1978-85
Condition
8/10
Serial No.
APT-1-NA
Orig. MSRP
$447
Restoration
- Full 30-point service check
- Cleaned controls, switches, and chassis
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
Packing
Prepare to be impressed. We have arguably the best packing process around. This piece will ship double-boxed, and fully insulated, taking extra care to ensure there's no pressure against the face. Then the inner box is suspended inside a double-walled outer box using shock-resistant foam corners.
Shipping
This piece ships to the contiguous United States for a flat rate of $75, which includes our packaging and our insurance. Of course, we'll ship anywhere in the world, just drop us a line and we'll give you an estimate – even if you're just curious.
Stock No.
C8190472618205
