Id recommend you read this covertocover if youre interested, as it not only explains many of the novel circuit innovations, it even includes several sample projects to build in order to measure the excruciatingly high performance and low noise of this preamplifier. I have owned an apt holman preamp for the past 16 years. Complete oneowner set eq, stands, manual hifi audio, stereo speakers. Recently acquired apt preamp and owners manual would be deeply appreciated if still available. The apt corporations holman preamplifier is the most well thoughtout stereo preamplifier ever designed. I will send you one of the bound copies if you are interested. His was the only other apt 2 ive heard of and it was on ebay. A quick description demo of one of my favorite pieces, the apt holman preamp 2. The apt 1 amplifier is a power amplifier for driving loudspeakers in a wide range of home music systems. It was designed at the very height of recorded musics reign as the dominant form of home entertainment home video was still years away, and was designed by none other than the brilliant tom holman, the inventor of 5.
Free apt holman diagrams, schematics, service manuals. Apt corporation holman manual stereo pre amplifier hifi engine. As i sat there in the early 1980s with my modest apt holman preamp, all of my friends. A a, tha of and 3 ilz rd cf wiifr ahe the near is qat with ail of 1. However, i really need a user manualoperating manual as some of the controls are quite unfamiliar. I have the user manual for the apt holman but have never scanned it. Hifi manuals uses cookies exclusively to gather anonymous data that help us improve the website. I just bought an apt holman pre amp on ebay, based on the units reputation of having a very good phono section. A specially designed power transformer operating at low flux density. I have had the apt amp and preamp since they first came out, they are both going. The biggest collection of apt holman manuals and schematics. I have owned this preamp since 1984, when i bought it. Apt corporation holman manual stereo pre amplifier.
Local customer richard helped create a dedicated set of instructions on our website. I think it looks great, and it has all sorts of useful features and gadgets, but the sound left me a bit disappointed. The 40 year old tape 2 monitor switch the one with the green flag that pops up was corroded inside and intermittent, so i opened it up. Apparently the manual also has settings for many phono cartridges as well. Im not sure what motivated me to read the owners manual for the audio. If you like the preamp, i would suggest having it tested by. The apt corporation holman preamplifier is one of the best stereo preamplifiers. I just picked up an apt holman preamp along with an amber 70 amp and a pair of allison ones. Apt holman diagrams, schematics and service manuals download for free.
I replaced a parasound zphono running into an hk citation 17s pre amp with the apt pre amp. Holman apt preamp anybody have a copy of the user manual. I made a copy of the manual that they sent, and had both bound. The apt holman noise floor is noticeably lower and all my lps sound better. View and download apt holman service manual online. Apt corporation apt 1 manual stereo power amplifier. Apt holman manuals, schematics and brochures hifi manuals. Apt holman preamp and amp steve hoffman music forums. Does anyone have a users manual or other literature for this preamp. The apt corporation holman preamplifier is one of the best stereo. It provides a flexible complement to the apt holman pre amplifier, but it is meant to allow an optimum match, without detrimental interactions, to any other possible system components. Best choice products 119in hd indoor pull down manual widescreen projector screen for. The aptholman preamplifier has been designed to provide a control center for home.