We delete comments that violate our policy, which we encourage you to read. For 300 bucks, you got a true dualmono amplifier designed by nelson pass. Products with such high quality, sophisticated craftsmanship and economical prices are delivered only by adcom. I have owned two of these for over 10 years in a surround system. To open downloaded files you need acrobat reader or similar pdf reader program. Anyway, the 555 should sound just like the 545 only with more power in. Better at lower volumes then when pushed likely because it runs in class a for the first 10 watts to more punishing volume levels.
Its a pity that a pdf reader isnt included when windows 7 is released. Adcom high performance audio amplifiers, preamplifiers. I sent several emails to adcom and they agreed to look at the gfa 5800 if i would send it in. Feb 07, 2015 adcom gfa 5800 250 watt nelson pass design amplifier for sale. The amp i had at the time was a pioneer a35 integrated that i was using as a power amp to the hafler. A however, you can download and install a lightweight yet powerful pdf viewer to serve as part of the operating system to view, print, and convert pdf. I am the original owner of this amplifier which has been a work horse for me for many years. Super dynamic with very clean sound, excellent imaging, and very detailed. Below you will found our manuals on the adcom gfa 5800. Adcom gfa5800 sm service manual download, schematics. But was very disappointed to see that it didnt had document viewer or pdf reader. Adcom gfa5802 manual stereo power amplifier hifi engine. Adobe pdf viewer for 5800 freeware free download adobe. The owners manual is used as an reference guide, instruction manual and instruction book.
The adcom blows all of these amps away including the krell which is a. The manual was written in by adcom and applied to gfa5800. Adobe acrobat reader dcdownload kostenloser pdfviewer fur. Adcom gfa5500 power amplifier overview and full product specs on cnet. If that is true, thats saying quite a bit about adcom. When i contacted them about this amp, i mentioned the toroid hum problem the gfa 5800 and was again brushed off. Sep 15, 2011 testing the adcom gfa 5800 mbung lapanpuluhan. The 5800 is a all mosfet design resulting in a very musical sound reproduction. Well adcom gives you that champaign taste on a beer budget. An excellent preamplifier at a very reasonable price. Adcom gfa 5802 power amplifier repair and restoration.
Nov 20, 2010 adcom gfa 5800 250 wpc solid state amplifier. Adcom gfa5300 power amplifier model gfa5300 is a 2 channel stereo power amplifier. Coupled with my adcom preamp and dalquist dq20 front channel speakers, they put out flawless music. The srmt1 has two professional 580 v and a third standard 230 v output, so any stax earspeaker ever made since 1959, from the original sr1 to todays sr009, works perfectly. For me, the iconic adcom power amplifier was the gfa555. Download the adcom gfa5800 manuals for free hifi manuals. Software, lizenz, betriebssystem, bemerkungen, homepage. If you want to ask questions, then please go to ask seller question on bottom of page. Download free adobe acrobat reader dc software for your windows, mac os and android devices to view, print, and comment on pdf documents. The 5800 is one of adcom s finest sounding amps, and at this selling price, it is a bargain. The adcom gfa 5800 is a stereo power amplifier for your passive monitors.
Adcom gfa5800 amplifier owners manual pdf viewdownload. To purchase gfa5800 spares or accessories, please contact the company via their website or visit an authorised retailer. User manuals, guides and specifications for your adcom gtp450 amplifier. Piano is clear and present, while female voices are pleasant and full range. This was adcoms biggest and most expensive amplifier. The adcom gfa5800 is a stereo power amplifier for your passive monitors. The adcom gfa545 ii is a highvoltage amplifier and bias source for stax electrostatic headphones. The schematic is a technical drawing or diagram of your system, a perfect supplement to the service manual. Adcom gfa 5800 250 watt nelson pass designed amplifier. Much of its design was conceived by nelson pass, founder of threshold corp.
In addition to a large pushbutton power switch and the thermalprotection indicators, the front panel of the gfa7000 contains a row of five red distortionalert led indicators. Below you will found our manuals on the adcom gfp565. Adcom gfa5300 power amp, i have been a audio fanatic for longer then i want to remember, all as i can stay,any body staying that the adcom gfa5300 power amp doesn,t sound good, has a piss pure sounding preamp hooked up to it, to make a long story short, as i found out with the one i have,i had a nikko betta 30 preamp hooked up to it at first,the low end was like it wasn,t there, then i got. Download countless of free service manuals you find nowhere else. Adcom gives entry level buyers the look of pukka topend gear, however boring the idea of a jetblack, 430mm. The service manual functions as a repair guide for troubleshooting and sometimes contains tips for refurbishing and modifications. Download the adcom gfp565 manuals for free hifi manuals. Merch rep the community and hobby you love so much. If any number is altered or missing, you should notify us immediately in order to insure that you have received a genuine adcom product which has not been.
The adcom gfa 5800 delivers a sense of realism that is usually only found in highend amplifiers. Over the years, i changed speakers several times, and even added a fully regulated. The only downside is the heat generated as they are biased ab1. View and download adcom gfa5800 owners manual online. Adcom gfa 5800 opinions as a recent owner of the adcom gfa 5800 ive developed some strong opinions of the sound. Adcom gtp450 manuals and user guides, amplifier manuals. Mar 08, 2006 i have an adcom gfa5200 stereo amplifier that is not working right now. Also some files are djvu so you need djvu viewer to open them.
Adcom gfa5300 power amp, i have been a audio fanatic for longer then i want to remember, all as i can stay,any body staying that the adcom gfa5300 power amp doesn,t sound good, has a piss pure sounding preamp hooked up to it, to make a long story short, as i found out with the one i have,i had a nikko betta 30 preamp hooked up to it at first,the low end was like it wasn,t. I sent several emails to adcom and they agreed to look at the gfa5800 if i would send it in. Adcom offers the enclosed valuable limited warranty. Today, adcom has launched a comeback and is now trying to break back into the affordable highend audio and home theater market.
View and download adcom gfa 5800 owners manual online. Adcom builds a fine product and probebly will always hold it price. Please suggest how can i get a pdf reader for 5800. The adcom performed at a peer level and produced superb results. View and download adcom gfa 5800 service manual online. A 300wpc monster, with 16 hexfet output devices per channel.
Adcom high quality service manuals user owner instruction. The adcom does not need this to strut its stuff, but we have found. Music speaks emotions and to experience those feeling adcom produces uncompromising quality of sound that will speak to your soul. I will cop to being an adcom fan, and think they compare very favorably with brystons. Oct 06, 2015 some notes about restoring a gfa5802 posted on october 6, 2015 january 26, 2016 by hoppesbrain just some thoughts and pictures from this adcom gfa5802 ive just restored for jeff in washington. It turns off for a second but goes through cycles of on and off every couple of seconds. In general, and this is purely for the two channel adcoms, they have always made a point of having excellent current capacity, a forgiving nature for some difficult impedances, and really well considered transformers. The gfa 555 mkii was said to sound like a krell in an old stereophile mag years ago. I purchased this amplifier from almas hifi in bloomfield, michigan. It is marvelous at extracting and parsing the details that would normally have been too blended.
Adcom had a sensational success with the gfa535 in the 80s and 90s. The adcom gfa 5800 is high current and powerful enough to drive any 4 ohm speakers with ease to deliver audiophile sound and ultrareliable performance. The amp seems to do a great job of powering these monitors, and the owner of the studio mentioned that its the best amplifier he has heard from the monitors, which is something that can. The adcom gfp1a is finished entirely in black with white markings. It measures 19 inches wide, 3 inches high, and 1112 inches deep exclusive of the frontpanel knobs and the rear connectors or jumpers. The gfa 5800 has most of the detail and sweetness of highend tube amplifiers, and the. The srmt1 has two professional 580 v and a third standard 230 v output, so any stax earspeaker ever made since 1959, from the original sr1. Adcom gfa5800 musical concepts elite lx signature upgrade. You have made a wise choice that will reward you with exceptionally accurate and musical sound reproduction for years to come. The manual was created in pdf format with the filename of gfa5800manual. Sixteen 20 amper metal case power mosfets per channel in the output stage, watt power supply, computer grade filter caps rated to last over 20 years of life. Conservatively rated at 60wpc, with a highcurrent power supply, it was a lot of amp for the money. Over the years, i changed speakers several times, and even added a fully.
Virtual systems let the world see what youve built. Both on the test bench and as part of a hifi system, the adcom gfp1a left nothing to be desired. It is capable of driving almost any load and delivers stunning dynamic range. It has all the flexibility one could ever want combined with smooth, silent, and bugfree operation. The adcom gfa545 gfa stood for great fg amp designed by the legendary nelson pass first watt and pass labs this was the best bargain audio in the. When i connected to internet, i was able to install document viewer. View and download adcom gfa5800 service manual online. I dont own this but ive used it at a studio with a set of tannoy 8s i believe. I recommend using a tubed preamp with it and not cheapo cables and interconnects. Nice 5way binding post, nice gold panal mount rcas, with the 2. And there wasnt a whole lot of difference between the 555 mki and mkii. Adcom uses hex screws and they can be difficult to break loose. Please read the details on the warranty card carefully to understand the extent of the protection offered by the warranty, its reasonable limitations, and what you should do in order to obtain its benefits. Adcom gfa5800 sm service manual download, schematics, eeprom.
Database contains 1 adcom gtp450 manuals available for free online viewing or downloading in pdf. Below you will found our manuals on the adcom gfa5800. The gfa5800 has most of the detail and sweetness of highend tube amplifiers, and the. This adcom gfa 5802 power amplifier is in fairly good cosmetic condition. I have not done so because, as a matter of principle, i.
Posted on october 6, 2015 january 26, 2016 by hoppesbrain just some thoughts and pictures from this adcom gfa5802 ive just restored for jeff in washington. This website is not affiliated with or sponsored by adcom. The amplifier is very smooth, producing good inner detail. When i contacted them about this amp, i mentioned the toroid hum problem the gfa5800 and was again brushed off. Gfa5300 2 channel amplifier affiliated electronics. To purchase gfa 5800 spares or accessories, please. Adcom gfa 5800 amplifier nelson pass design audioholics. Adcom recalled the gfa6000 amplifier that i had due to potential fire hazard. Adcom gfa5802 power amplifier overview and full product specs on cnet.
This is a nelson pass design, and sounds wonderful. Price drop for quick sale on this great amplifier us sale only. Adcom says that this condition is unlikely to occur unless the amplifier is operated for extended periods into loads of 3 ohms or less at very high listening levels. After years of kitbuilding and doing it myself, the 555 was the first factorybuilt amp that i wanted and could afford. Adcom gfa5800 opinions as a recent owner of the adcom gfa5800 ive developed some strong opinions of the sound. The schematic is a technical drawing or diagram of your system, a perfect supplement to.
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