Adcom gfa 535. Questions for the gurus to follow.

Adcom gfa 535 A friend bought it on ebay and had it sent to my door. Original owner. Thanks for the links Robert. This amplifier has been fully restored and calibrated. Oct 15, 2024 · Adcom GFA-535 speaker binding posts repair kit. I am th Aug 30, 2018 · Is GFA-535 a NP design? I have a 2535 which is 2x 535s in one chassis, I know it is "well regarded" but I find it too warm sounding and it runs out of steam pretty quickly even when driving efficient Klipsch speakers. Solid State Power Amp Reviews Adcom GFA-535 power amplifier CG's Systems Sidebar 2: CG's Systems As with all the Real World gear I review, I listened to both amps in my Real World system, which is affordable, and my He-Man rig, which is not. Most people end up attaching a piece of sheet metal over the holes and drilling new, smaller mounting holes in the Adcom GFA 2535 Amplifiers user reviews : 3. 00 + $11. I've never owned this brand except for one CD player a few years Adcom model GFA-535 power amplifier in as new condition. It stayed at home in San Francisco, while I was away in college in Santa Cruz. Mar 1, 2016 · Picked up the Adcom GFA-535 at the local thrift today. The two-transformer dual-mono power supply is quite a bit beefier than normally seen in this price range, with each transformer's 50VDC supply rails smoothed with a View and Download Adcom GFA-535II owner's manual online. Adcom GFA 535MKII Amplifiers user reviews : 4. 56 KB pages: 12 Welcome to USAudioMart, a classifieds site for used audio and hifi. The manual is available for free at www. and tremendous headroom. # I am looking at a couple Adcom amps and need a quick education. " He brought it over the next day, along with the GFP-555 preamp ($499. The first series GFA-5#5 Adcom amps are based on a Nelson Pass design. High current amp, Stereophile Recommended Component. Postings are free for hobbyists. Jul 1, 2024 · Adcom GFA-535 power amp in VG condition !Minor scratches etc on top cover from stacking equipment, use etc but looks great anyways !Speaker A, B push button selectionPower output: 60 watts per channel into 8Ω (stereo)Frequency response: 10Hz to 20kHzTotal harmonic distortion: 0. Killing the buzz in the Adcom GFA-535. Rated at 60 watts RMS per channel into 8 ohms. So far, the 535 seems to be the most economical while still being an amp raved about among the budget market. past Stereophile Recommended Component. Output power: 60W into 8 ohms (17. Dec 23, 2018 · Description Improved power supply kit for the Adcom GFA-535 MK2. The output stage is capable of greater than 25 amps into low impedance loads. ** Unit is in excellent condition for it’s age. I will ship worldwide , but I wont be liable for any lost/damage. 100% of the electrolytic capacitors have been changed. ) Conservatively rated at 60WPC, with a high-current power supply, it was a lot of amp… Mar 3, 2021 · Adcom GFA-535 ii listening review or: Never meet your heroes 77Bacon Mar 3, 2021 1 2 Next Find many great new & used options and get the best deals for Adcom GFA-535 2 Channel Power Amplifier at the best online prices at eBay! Free shipping for many products! Internally, the GFA-535 II's build quality is up to Adcom's usual high level. And is that a good quality reasonable option at this point? Classified: FOR SALE - Adcom GFA 535 Power Amplifier asking for $159. 95 CAD - 70% Off RetailOriginal BoxPS recently re-cappedSpecifications:Description: Two-channel, solid-state amplifier. This item is a recurring or deferred purchase. 60wpc? Any other suggestions in the 200. It features true dual mono construction with each channel getting its own power transformer and power supply capacitors. Adcom GFA-535? What's a reasonable price for a GFA 535 in good condition. I'm not going to try to sell it, as it doesn't promise much on the used market. Very cool gift and great friend. 01/mo with Mar 10, 2013 · The Dalis and the Adcom really work well together for me. Incredible clean power amp for passive monitors. This is a three-piece system comprising of ADCOM’s top tier separates in the ultra rare white finish. 04% Damping factor: 180 Gain: 27 dB Input sensitivity: 0. I have no idea if they were original or a Mod of some sort Adcom GFA-535 60W x 2 Channel Amplifer. S/N ratio: 110dB. The PAPER ADCOM GFA-535 Service Manual is a high quality, paperback booklet of the OEM ADCOM GFA-535 Service Manual DIY (Do-It-Yourself) manuals are made for homeowners and handymen who have mechanical abilities but can use a little training in repairing certain appliances. GFA-535 II amplifier pdf manual download. It will be shipped with our specialized packing for safe transport. Have a nice Day! See related repair forum topics below. First, neither Nelson Pass or our EchoWars recommend mod'img them other than ensuring that they have good elyticaps and fuses, acceptable offset, and proper bias. Input Oct 3, 2025 · Here is a great opportunity to acquire a vintage ADCOM system package. Key specifications include a power output of 60 watts per channel into 8 ohms, a frequency response from 10Hz to 20kHz, and total harmonic distortion (THD) typically below 0. I also read that the input jacks should be shorted when adjusting the BIAS,as per the service manual. 00 Adcom GFA-535 | Cleaned and TestedThis item is a recurring or deferred purchase. (Separate power supplies for both channels. THIS IS MY LATE HUSBAND'S GEAR AND MUST GO TO A NEW HOME. I'm having trouble finding out for sure if it can handle a 4 ohm load though. That changed in September 1992, when I returned to UCSC for my senior year. Some cosmetic scratches Oct 16, 2015 · Addendum. Has anyone compared the 535 to the 535II? Would it be worth upgrading to the 535II or just moding the 535? One of vintage audio's favorite amplifiers, the Adcom GFA-535ii. 16 No. GFA-535II amplifier pdf manual download. Lift them as suggested above and use a 40 W lamp trouble shooting assembly to determine if the power supplies are OK, and also to save future AC fuses from blowing; fuses are expensive. GFA-535L amplifier pdf manual download. Aug 31, 2009 · In its price category, the Adcom GFA-535 is not only an excellent choice; it's the only choice. High current amp, works great. Does not include manual. All of these were bought new when he (we) were in the Army. But Rob insisted, "You've gotta hear this amp. com This amplifer has fantastic specs. I am looking for tight and full bass, good soundstage, and May 1, 2010 · Hey guys- I know some of the 5xxx series mosfet Adcom amps were a Pass design, but was the GFA-535 a Pass design as well? Just curious. Christmas parties around the corner, be prepared Posts about Amplifier Parts written by hoppesbrainEBFA-565 Replacement Circuit Board for Adcom GFA-565 $ 80. 2 Adcom GFA 535 II, small-signal 10kHz squarewave into 8 ohms. Some vintage Aug 12, 2015 · This is the same basic idea as my Super High-Current GFA-535 II that I created from the remains of a GFA-2535. The GFA-535 (60 watts per channel) and the GFA-545 (100 watts) in addition to the GFA-555 at 200 watts per side. pdf size: 824. Gold-plated binding posts included. Adcom GFA 535 Great Amp for a 2 channel system or to expand your Home Theater from 5. 98 Add to Cart Price Drop Adcom GFA-5400 stereo power amplifier Used – Fair $555 $306 price drop $249 Add to Cart GFA-535 II restoration kit filter capacitor repair rebuild Feb 4, 2023 · Adcom GFA-6002, Part 9 Posted by Luminator (A) on February 4, 2023 at 18:41:55 The Adcom GFA-535 was my first "high-end audio" product. TESTED, and in perfect working order. Please check out the other items I have for sale. But here's the thing. Input sensitivity: 970mV ADCOM GFA-535II 2ch Stereo Power Amplifier - Original Box - TESTED - Used, but still in very good condition. Both Channels work as they should. Input impedance: 100k ohms. Things are super busy; my queue is getting a little nuts, but a lab equipment upgrade is on the way! I'm getting a new scope, function generator, multimeter, distortion analyzer,… Jan 26, 2008 · Same dilemma: Just got a fully restored Adcom GFA-535 and wanting the matching preamp. 1 to 7. Questions for the gurus to follow. The manner in which the Adcom's small-signal THD+noise varies with frequency into various loads is plotted in fig. 4 out of 5 - 36 reviews - audioreview. adcom. Frequency response: 10Hz–20kHz, –0. I have a ton of vintage stereo equipment for sale. It has 2 stereo RCA inputs and 2 outputs with raw cable and banana speaker jacks. 04% THD from 20Hz to 20kHz with 60 watts into 8 ohms and 1 00 watts into 4 ohms. Adcom GFA-535 II Power Amplifier and GTP-400 Preamp Combo. ) The original power supply uses one transformer for each stereo channel. Apr 13, 2003 · I was wondering if there is any collective knowledge on the board as to some good modifications to the first generation Adcom GFA-535 or GFA-555? I've got the schematics for the 555 (the 535 appears to be very similar but scaled down). What did he get? Adcom GFP-555, Adcom GFA-535, and a pair of Klipsch Fortes. 10 shipping Adcom GFA-565 restoration recap service kit fix repair filter capacitor rebuild Great older adcom gfa 535 amp with 60 watts of power. By continuing, I agree to the and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. Compatible with any binding post with a 10mm mounting hole diameter. GFA-535 amplifier pdf manual download. wetransfer. The I'm looking at a few Adcom power amplifiers and I see several models that I'm not familiar, such as the GFA-5200. The Adcom GFA 535 is a stereo power amplifier known for its robust build and clear sound quality. I'm mostly familiar with the legacy models from the 80', such the GFA-535. 04%. I've read posts from some google searches stating Apr 20, 2025 · Improved power supply kit for Adcom GFA-535 MK1. 8 out of 5 - 8 reviews - audioreview. Ideal for audiophiles looking for reliable, vintage Mar 27, 2007 · I have the adcom 5300 service manual and it has very little information that is useful other than a schematic. 00 Select options BFA-535 MK2 Power Supply for Adcom GFA-535 MK2 $ 140. Adcom GFA-535L: Owners Manual. I can’t find any major blemishes on the unit, please view the photos. (The 2535 is basically four channels of GFA-535, with a double-size power supply, and I modified it to drive only two channels. In succession with the GTP-400 is a great sounding 2 piece set up! High quality at an affordable price. Dec 14, 2009 · The Adcom GFA 545 Mark II - an iconic vintage amplifier, and my #1 recommendation to new audiophiles. Adcom produces audio equipment and accessories, including the Adcom GFA-535 power amplifier. FWIW I have a GFA-535II driven by a GFP-555II in one of my setups and I really like it Fig. 1 channels. What were the improvements to the GFP-555ii over the GFP-555, and then the GFP-565 over the GFP-555ii? Adcom Service Manual for ANY Adcom model. Overall very good shape. ). Internally, the GFA-535 II's build quality is up to Adcom's usual high level. Shipped with USPS Ground Advantage. 00 used range? Will be powering Monitor Audio S8's Thanks for the input. Original owner, unit was purchased new from Custom Electronics in Omaha, Nebraska in 1988. **Moline IL. Power output: 60 watts per channel into 8Ω (stereo) Frequency response: 10Hz to 20kHz Total harmonic distortion: 0. 00Pickup only Jul 25, 2000 · According to Adcom, these amps are not bridgeable. Nov 29, 2011 · Looking at a couple of Adcom GFA-5300 amps Wondering if the GFA series amps are all pretty much as good, or, the same, from one model to another? Also, Nov 25, 2024 · ADCOM GFA-535 Power Amplifier: Excellent Trade-in; 90 Day acX Warranty; 70% OffMSRP: $999. 8dBW). Looks good. The unit was manufactured in Japan. 00 – $ 480. Some cosmetic scratches on top of unit. Very clean with no discernable cosmetic wear. 97V Signal to noise ratio: 110dB Semiconductors: 34 x transistors, 2 x zener diodes, 14 x diodes, 2 x IC, 2 x diode bridges Dimensions: 86 x 432 x 317mm Weight: 8. Nov 12, 2010 · I am able to get a pair of Adcom GFA-535 amps and Adcom GTP-400 pre-amp, and am wondering if the Adcom amplifiers are able to be bridged. Register today and start selling/buying audio gear! May 25, 2017 · Dear All, I currently sourced an ADCOM GFA 535 MK II and am looking at adjusting and checking the Bias to see if it is perfect. The amplifier employs a discrete differential Class-A front-end followed by a Class-A voltage-gain stage which amplify the Aug 31, 2009 · Actually, when Rob Ain from Adcom called, I was about as enthusiastic about the GFA-535 as you might have been before reading this piece. Description Adcom Power Amp Model: GFA-535 60 watts per channel at 8 ohms PDF Owners Manual, Service Manual & Brochure available upon request Matching Adcom Preamp also available under separate listing Two units available. I have no idea if they were original or a Mod of some sort May 1, 2010 · Hey guys- I know some of the 5xxx series mosfet Adcom amps were a Pass design, but was the GFA-535 a Pass design as well? Just curious. The regular 535 doesn't have them. 04%Damping factor: Dec 14, 2009 · The Adcom GFA 545 Mark II - an iconic vintage amplifier, and my #1 recommendation to new audiophiles. This amplifier also comes with its original manual. View and Download Adcom GFA-535 owner's manual online. Looking forward to hooking them up. Input sensitivity: 970mV RMS. We would like to show you a description here but the site won’t allow us. Jun 20, 2014 · So, my best friend decided to give his old hi-fi stuff to my 14 year old son. I love the "L" version because of the input sensitivity potentiometers on the front panel and the selectors for A and B speaker sets on the front panel as well. Will package in original Adcom box; the box is for a GFT-555 II, but fits the GFA-535 nicely with protective sytrofoam blocks. I imagine the 535 manual would have even less. Oct 23, 2015 · Who is online Users browsing this forum: No registered users and 0 guests Tested. For many, this flexibility really meant “the end of the receiver” as it gave the consumer the ability to buy the exact amount of power needed without sacrificing sound quality or convenience. This product was first introduced in the late 1980s, but the company is no longer manufacturing it. Mar 21, 2020 · The factory bodge ties the right channel's input ground reference to the left channel via the very long shield of the input wires. Anyways, I'm wondering if this is stock. 00 Select options BFA-565 Input Board for Adcom GFA-565 (Original, OEM Style) $ 80. Unit shows some minor wear and scratches, and overall is in very good cosmet Apr 13, 2003 · I was wondering if there is any collective knowledge on the board as to some good modifications to the first generation Adcom GFA-535 or GFA-555? I've got the schematics for the 555 (the 535 appears to be very similar but scaled down). ADCOM GFA-535 GFA535 GFA 535 If you have any question about repairing write your question to the Message board. I am sure that the same would hold true for the 545 II with a lot of good "bookshelf" speakers, but the Dalis just sing! I actually heard things on the Giles Martin remaster of Abbey Road that either I had never heard or, at least, never noticed beforeand that is an album I know well. 95 is much less than you planned to spend for an amp— ie, whether you should put the money into a better CD player or pair of speakers instead. Just posting up to get former owner's impressions about this amp and any pertinent info. 00 4 interest-free installments, or from $36. Nov 5, 2004 · Adcom GFA 535II or 545II/suggestions Presently running the 535 II is there a noticible difference if I upgrade to 545II @ 100 wpc vs. Jan 15, 2006 · Review of GFA-535 power amplifier by Adcom. The real question is whether you should buy one even if $299. No missing knobs. Input and output filters are improved with far better parts. I will be powering a pair of Polk SDA 1C. Insurance View and Download Adcom GFA-535 instruction manual online. Feb 1, 2025 · Adcom GFA 535 II AMPLIFIER . It also features unbalanced RCA inputs and five-way binding post outputs for speaker connection. Originally designed by the legendary Nelson Pass, the 535ii was updated by Adcom engineers. Jun 12, 2015 · This was a fun project! Adcom had a sensational success with the GFA-535 in the 80s and 90s. Unit works great. Does anyone have experience with the newer models? May 9, 2004 · Adcom GFA 535 II Any thoughts/past experience concerning this particular amp?thanks View and Download Adcom GFA-535 II service manual online. 3 Adcom GFA 535 II, channel separation at 100Hz): L–R, R–L (5dB/vertical div. The Adcom GFA-535 II 2 Channel Amplifier is a powerful amp that gives you the strength and volume that your music needs. 60 watts per channel at 8 ohms . Fixes the hum and buzz issue with the 535 MK1, as described in my original blog post. Oct 18, 2025 · Adcom GFA-535 restoration recap service kit fix repair filter capacitor rebuild $155. Can anyone give me some suggestions on a good match for the 535 ? Must have a phono input Mar 16, 2017 · Improved power supply boards for Adcom GFA-535 and GFA-545! Hey everyone, First of all, I'm sorry if I've been slow in responding to your messages. Mar 7, 2005 · I currently own an Adcom GFA 535 and have had no complaints. Featuring Triple Darlington output, this amplifier reduces the effects of speaker impedance variations. Local pickup - South Bay L. Perfect for Ns10’s/Auratones and the like. I have an Adcom GFA 535 power amplifier. *In store pick up only. Jan 20, 2021 · Binding Post Kit for Adcom GFA-535 MK1 Adapter kit makes it easy to install binding posts on the Adcom GFA-535 MK1. Use Hifi Shark to monitor pricing and global availability The ADCOM GFA-535II is a stereo power amplifier rated at less than 0. Designed Nelson Pass. 00 Select options BFA-555 MK1 Input Board for Adcom GFA-555 MK1 $ 80. comDESCRIPTION 60 watt, high current amplifier Ascent Series 8TC Speaker Cables (PAIR) From a 1993 Stereophile review written by Corey Greenberg: "Internally, the GFA-535 II's build quality is up to Adcom's usual high level. May 3, 2021 · Adcom 535L upgrades? I have an old Adcom 535L amp (60wpc) from the 1990s. And, all of them were replaced when his house got hit by lightning. The bias circuit uses a new and better bypass capacitor. com. Nov 9, 2025 · 💥 Adcom GFA-535 II Stereo Power Amplifier High Current Vintage Audio Equipment Feb 26, 2003 · I 'm looking to put together a 2-channel system with used mid-90s gear – either an Adcom GFA545 amp/GTP500II preamp-tuner or a B&K ST1400 amp (non-series II)/AVP1000 preamp-tuner. The 5#5-II series, 565 and 585 are by Walt Morrey and others. Fig. I wrote an article about this a while back, I guess you've read it. I used these features. NO CABLES OR OTHER ACCESSORIES ARE INCLUDED. This amplifier boasts 120W per channel of power and features analog technology. To me it would make sense to pair it with a Adcom pre-amp but its been suggested by some here that might not be the case. United Chemi-con 15kuf 63v 105c high rail capacitors also replaced Works 100%, looks like a BOSS. 10): Okay, here you are: You're a Real World music lover trying to sling together a Real World hi-fi rig. Power consumption: 300W. Condition is Used. . 04%Damping factor: Adcom GFA-535 Amp manual free downloadbrand: Adcom category: Amp file name: Adcom GFA-535II Owners Manual. We offer PDF and Booklet service and repair manuals for all brands and models. thx May 11, 2009 · I just received a great Adcom 535 Power Amp as a gift. Hell, you've even gone out and bought a Solid State Power Amp Reviews Adcom GFA-535 power amplifier Specifications Sidebar 1: Specifications Description: Two-channel, solid-state amplifier. AdComParts - A source of original electronic and mechanical parts and components for Adcom Denon Marantz Onkyo receivers, amplifiers, CD players Adcom GFA-535 II Power Amplifier Description: Two-channel, solid-state amplifier. Oct 24, 2010 · The Adcom GFA-535 is the little brother to the famed 545 and 555 amplifiers. It did help to mask some of the JBL-L100s ills though at low to mid volumes. Nov 13, 2025 · Adcom GFA-535 6800uF 63V replacement capacitors? Page 1 of 1 [ 1 post ] Page 1 of 1 [ 1 post ] Board index » DIY Forums » Solid State / Op-Amps / Chip Amps / Class-D All times are UTC [ DST ] Aug 1, 2019 · New Binding Post Kits for the Adcom GFA-535 MK1 Adcom GFA-535 MK1 binding post adapter kit Finally I've got a solution for those crappy twist-lock speaker connectors on the back of the Adcom GFA-535 MK1. I resprayed the cover due to some scratches Hey everyone, I'm looking for an amp to power my CS400i center. 25dB. I faced a problem like this with a Radio Shack receiver. For this no need registration. Sold separately. ADCOM GFA 535ll Audiophile AMPLIFIER POWERFULL WITH EXCELLENT SOUND QUALITY . Features include distortion protection, A + B speaker output, and a super solid design with good heat dissipation. A. Fully bench tested and in great working order. 00 Add to cart Adcom GFA ADCOM BOMS - Parts upgrades, substitutions, and added features for classic Adcom amps and preamps. Works properly and sounds great! Sounds much more powerful Adcom GFA-535 Solid state for sale. Read or download the pdf for free. I am quite a noob in this topic and am quite confused with the Adcom GFA 535 II Owners Manual This is the 12 pages manual for Adcom GFA 535 II Owners Manual. Adcom GFA-535: Owners Manual. Some scratches at the top of the unit, faceplate is super clean. 97V Signal to noise ratio: 110dB For sale is an Adcom GFA-535 II Power Amplifier, known for its excellent sound quality. Thus, my family (not I) got to familiarize itself with the GFA-535. They will be used to drive a pair of bi-wired floorstanding 2-way speakers with 10” drivers and ribbon tweeters. Christmas parties around the corner, be prepared Very nice amplifier in perfect working condition, its got some scuffs but runs like a champGreat sounding and reliable. Output power: 60W into 8 ohms (17. You gotcha budget-king NAD/Rotel/JVC/Pioneer CD player, your SOTA Comet/Sumiko Blue Point analog rig, and your cool-man NHT/PSB/Definitive Technology entry-level speakers. 95), and we put both pieces into the rest of the system: a Shure Ultra 500 in a Rega RB300 arm on an AR ES-1 table, with Quad ESL-63 speakers Adcom GFA-535 in excellent working condition. I know there were some internal improvements made on the II version but I don't know what they were or what effect they had on the sound. Includes 4 dual binding posts, board, hardware. Corey Greenberg wrote about the Adcom GFA-535 II in Ocotber 1993 (Vol. An amplifier works in conjunction with your speaker system and increases the overall power of your audio. Peace Out~ Adcom model GFA-535 4 Channel Home Stereo Power Audio Amplifier AmpSpecs:Power output: 60 watts per channel into 8Ω (stereo)Frequency response: 10Hz to 20kHz Jul 31, 2015 · Adcom GFA 535 has four 4A fast blow fuses on the two +/-50V rails powering the independent power amps. Only selling because I have too many! Flat shipping fee covers a HEAVY item, listing it for a steal. I strongly suggest local pick up. My L, R and Center are all bi-ampable, so this is the direction I plan on going. Dec 10, 2023 · Hello. Each setup costs about the same. Ideal for audiophiles looking for reliable, Adcom power to drive a wide range of speakers. Our original Performance Verification Report included as well as the original box and packing. Has new binding posts. comDESCRIPTION 60 watt, high current amplifier I am selling my Adcom GFA-535L. Home Adcom GFA-535 II Skip to product information By Just Audio HiFi Adcom GFA-535 II Call Just Audio to order! 410-882-4360 $399. high current power amplifier. If the site has helped you and you also want to help others, please Upload a manual, circuit diagram or eeprom that is not yet available on the site. Over 110 watts at 4 ohms. I will test it in front of the buyer. It has a label--"A channel right side speaker not working" TBDT what that's about. Sell 275. The system includes the GFP-555 MKII Preamp with both Moving Coil & Moving Magnet phono inputs, the outstanding GCD-575 CD player with all the bells & whistles of its time and the matching GFA-535 Amplifier with two We service and repair Adcom products many years and have good knowledge and big experience on all Adcom product line starting from Adcom GFA-1A amplifier GFP-1 preamp up to Adcom GFR-700HD GTP-870HD receivers. Mint . The rise in distortion as frequency increases is common to most amplifiers; the absolute level of distortion here remains View and Download Adcom GFA-535 instruction manual online. Some people prefer to use a separate power amp with a receiver, though, on the theory that the power amp is of better quality than the power amplification circuitry built in to the receiver. The holes left in the chassis are too large to mount normal binding posts. Nov 6, 2025 · Last visit was: 06 Nov 2025 1:13 am It is currently 06 Nov 2025 1:13 am Feb 21, 2021 · At any rate, you don't need the Adcom with a receiver, because the receiver already has power amplification built in. It's only partially effective. 4. I've been looking specifically at the Marantz MA-500, Parasound 750A, and the Adcom GFA-535. Low-noise, metal-film resistors and precision film caps populate the printed circuit board, while the pcb layout minimizes long wiring runs throughout. The amplifie Mar 1, 2022 · If you were looking for very affordable used solid state power amplification around 60-75wpc, which of these three would strike you as appealing? Adcom older than the others, circa 1990, then others early to mid 2000s I believe. Adcom LX Series Modifications Modification Strategy: Our venerable LX mod for your Adcom amplifier has changes in feedback circuitry which improves bandwidth, dynamic range and bass solidity/power. Covers 1980's and 1990's Adcom GFA-535 MKI & MKII, GFA-545 MKI & MKII, GFA-555 MKI & MKII, GFA-565 and GFA-585. The 535 is a bipolar design, so its not a Pass design. Where the Adcom 535 really shines is it’s ability to deliver difficult passages without compressing the sound. I lived in the Powers up- 40 w per channel Sep 8, 2024 · Adcom GFA-535 Solid state for sale. But, that's OK. Don’t miss out. The two-transformer dual-mono power supply is quite a bit beefier than normally seen in this price range, with each transformer's 50VDC supply rails smoothed with a Adcom GFA-535 - black (NICE) Used – Very Good $249 $249 Add to Cart ADCOM GFA-5002 Stereo 2 Channel Power Amplifier 50WPC TESTED WORKS Used – Very Good $149. A classic solid-state stereo power amplifier renowned for its clean, dynamic, and musical sound. A great bargain! For 300 bucks, you got a true dual-mono amplifier designed by Nelson Pass. 98 $149. Unit has been fully tested. Studio kept, note that they are RCA inputs. GFA-535 II' is a high quality Low-noise 60Wpc power amp. If you want to contribute, please upload pdfs to audioservicemanuals. New power supply boards! | Hoppe's Brain If you want to fix the issue without buying one of my boards, here's how! I haven't 1 day ago · Board index » DIY Forums » Solid State / Op-Amps / Chip Amps / Class-D All times are UTC [ DST ] Oct 16, 2015 · I'm starting one as a collective resource for these original series Nelson Pass designed amps. It's a utility amp and actually sounds decent if a bit grainy in the mids and highs. 95 CADacX Price: $299. Very nice amplifier in perfect working condition, its got some scuffs but runs like a champGreat sounding and reliable. Jan 20, 2017 · I'm designing a replacement capacitor board for the Adcom GFA-535 and 545, and I want to make sure this board is optimized for low noise. View and Download Adcom GFA-535L owner's manual online. 00 – $ 440. When set up with my pre amplifer and plugged into a pair of HSU HB1 speakers I have, the R channel Adcom GFA-535 in excellent working condition. It looks like it's had a couple of caps added. A true dual mono design! Cheers :) Adcom GFA-535 Stereo Power Amplifier Specifications Power output: 60 watts per channel into 8Ω (stereo) Frequency response: 10Hz to 20kHz Total harmonic distortion: 0. This is my first step away from the receiver and into the world of seperates. Oct 26, 2017 · I'm going to be purchasing a Adcom 535MKII power amp next week from a fellow AKer. Some critical resistors are Used Adcom GFA-535 Stereo power amplifiers for sale on 400+ second hand hifi sites & shops. Product Information The Adcom GFA-535 II 2 Channel Amplifier is a powerful amp that gives you the strength and volume that your musi Mar 21, 2013 · The original GFA-535 has connections and switching for two pairs of speakers, so you won't need the GFS-3 switchbox if you plan on connecting another pair of speakers. 00 Classified: FOR SALE - Adcom GFA 535 Power Amplifier asking for $159. Other than rated power, are there sonic differences between the GFA-535 and 545? Oct 25, 2025 · Adcom GFA 535 II High Current Power Amp / GTP 400 Preamp / Tuner . . 9kg The ADCOM GFA-535 II Power Amplifier is a subtle but powerful analog processor which makes music sound better and never adds any artifiacts. comDESCRIPTION 60 watt, high current amplifier Solid State Power Amp Reviews Adcom GFA-535 power amplifier Specifications Sidebar 1: Specifications Description: Two-channel, solid-state amplifier. Adcom spec'd at 60wpc (8ohm), the others at 75wpc, all with Nov 11, 2013 · Going on day five i have been listening to my gfa 535 man i lucked out i always shop at pawn shops for cd's when i run across a gfa 535 and gtp 400 pre amp in perfect condition for 150 bucks before the adcom i was listening to a hk 930 and a yamaha cr3020 the cr 3020 is a joke the hk 930 is Product: Adcom GFA-535 II Stereo Power Amplifier; GFA535 MKII Product SKU: 18366 Serial Number: AP25241324 Voltage: 120V Cosmetic Description: 8/10 Excellent condition with minimal visible cosmetic wear including light wear and a few small nicks on the front faceplate near the top, and a scratch and several faint scuffs on the top cover. 1 OWNER FULLY TESTED AND FUNCTIONAL PLEASE DOWNLOAD USER MANUAL BEFORE OPERATING. hcvn rkpjoo hnai jid xbyazb feqqz dfephqgc knjcwsyt gcvph htzq dhyrn oazud yhsija udg ypff