Curious if you still have this amp. Trying to put together an adcom bedroom system and this might be a nice fit. Thank you.I am selling a nice Adcom GFA-7705.
Asking $800 Plus shipping Local pickup in the Phoenix area can also be arranged.
I have am amplifier hobby and have owned several Adcom amplifiers including a GFA-7000, GFA-7500, and GFA-7607. This is one of the nicer ones that I have had but I just don't need it in my current setup.
This is a 5 channel 200 watt per channel amplifier at an 8ohm load or 300W into 4 ohms. It is a very robust and solidly made amplifier. It weighs in at 75lbs without any packing material!
I tested it on my personal speakers including my vintage JBL 4412's which have 12inch drivers, 5" mids and it sounds very clean. It does have the classic Adcom power on "thunk" sound but is very clean. I checked and adjusted the bias voltages to the specs in the service manual to ensure that they were within spec and replaced all of the screws. Each board is well grounded with a grounding strap wire to the chassis to ensure that there is no idling hiss with this amplifier.
It has some normal wear and tear but is in very nice shape overall. It has a couple of small front panel scratches that will be hard to see from a few feet away (pictured) and some scratches on the top panel (pictured).
I realized while posting this that I forgot to take a picture of the rear panel before packaging it. The back panel is clean and the boards have new stainless screws on the rear panel. I can take it back out but I prefer to keep it packed up for shipping. You have my word that there are no issues with the speaker jacks or anything on the rear panel other than perhaps some very small normal use scratches.
This amplifier was modified by a previous owner to have a 15amp plug. It has a very nice high end audio grade rhodium plated 15amp plug
Anyone really pushing 5x200 watts might want to upgrade their wall connection to 20amps and add a 20amp plug to avoid tripping their circuit breakers at extreme volume levels. This amplifier also has provisions for 2 extra channels and could be upgraded to a 7707 by adding 2 more amplifier boards in the future. I am in Phoenix where Adcom was based so I do have contacts who have more boards but I didn't feel the need for more than 5x200W.
A previous owner must have had a hard time getting a screw out based on the swirled scratches over one screw. I replaced all of the screws and the threads were all in good shape.
LMK if you have any questions!
View attachment 2622456
View attachment 2622458
View attachment 2622460
View attachment 2622462
View attachment 2622464
View attachment 2622466
View attachment 2622468
View attachment 2622470
View attachment 2622472
-Rich
-
Our native mobile app has a new name: Fora Communities. Learn more.
FS: Adcom GFA-7705 5 channel 200W/ch amp
I am selling a nice Adcom GFA-7705.
SOLD!
I have am amplifier hobby and have owned several Adcom amplifiers including a GFA-7000, GFA-7500, and GFA-7607. This is one of the nicer ones that I have had but I just don't need it in my current setup.
This is a 5 channel 200 watt per channel amplifier at an 8ohm load or 300W into 4 ohms. It is a very robust and solidly made amplifier. It weighs in at 75lbs without any packing material!
I tested it on my personal speakers including my vintage JBL 4412's which have 12inch drivers, 5" mids and it sounds very clean. It does have the classic Adcom power on "thunk" sound but is very clean. I checked and adjusted the bias voltages to the specs in the service manual to ensure that they were within spec and replaced all of the screws. Each board is well grounded with a grounding strap wire to the chassis to ensure that there is no idling hiss with this amplifier.
It has some normal wear and tear but is in very nice shape overall. It has a couple of small front panel scratches that will be hard to see from a few feet away (pictured) and some scratches on the top panel (pictured).
I realized while posting this that I forgot to take a picture of the rear panel before packaging it. The back panel is clean and the boards have new stainless screws on the rear panel. I can take it back out but I prefer to keep it packed up for shipping. You have my word that there are no issues with the speaker jacks or anything on the rear panel other than perhaps some very small normal use scratches.
This amplifier was modified by a previous owner to have a 15amp plug. It has a very nice high end audio grade rhodium plated 15amp plug
Anyone really pushing 5x200 watts might want to upgrade their wall connection to 20amps and add a 20amp plug to avoid tripping their circuit breakers at extreme volume levels. This amplifier also has provisions for 2 extra channels and could be upgraded to a 7707 by adding 2 more amplifier boards in the future. I am in Phoenix where Adcom was based so I do have contacts who have more boards but I didn't feel the need for more than 5x200W.
A previous owner must have had a hard time getting a screw out based on the swirled scratches over one screw. I replaced all of the screws and the threads were all in good shape.
LMK if you have any questions!
![Audio equipment Electronic device Technology Electronics]()
![Audio equipment Electronic device Technology Electronics Gadget]()
![Audio equipment Electronic device Technology Power inverter]()
![Plywood Wood Electronics Floor Metal]()
![Electronic device Rectangle Metal]()
![Sound box Audio equipment Loudspeaker Electronic instrument Technology]()
![Technology Electronic device Audio equipment Grille Computer hardware]()
![Muffler]()
![Auto part Door handle Metal]()
-Rich
SOLD!
I have am amplifier hobby and have owned several Adcom amplifiers including a GFA-7000, GFA-7500, and GFA-7607. This is one of the nicer ones that I have had but I just don't need it in my current setup.
This is a 5 channel 200 watt per channel amplifier at an 8ohm load or 300W into 4 ohms. It is a very robust and solidly made amplifier. It weighs in at 75lbs without any packing material!
I tested it on my personal speakers including my vintage JBL 4412's which have 12inch drivers, 5" mids and it sounds very clean. It does have the classic Adcom power on "thunk" sound but is very clean. I checked and adjusted the bias voltages to the specs in the service manual to ensure that they were within spec and replaced all of the screws. Each board is well grounded with a grounding strap wire to the chassis to ensure that there is no idling hiss with this amplifier.
It has some normal wear and tear but is in very nice shape overall. It has a couple of small front panel scratches that will be hard to see from a few feet away (pictured) and some scratches on the top panel (pictured).
I realized while posting this that I forgot to take a picture of the rear panel before packaging it. The back panel is clean and the boards have new stainless screws on the rear panel. I can take it back out but I prefer to keep it packed up for shipping. You have my word that there are no issues with the speaker jacks or anything on the rear panel other than perhaps some very small normal use scratches.
This amplifier was modified by a previous owner to have a 15amp plug. It has a very nice high end audio grade rhodium plated 15amp plug
Anyone really pushing 5x200 watts might want to upgrade their wall connection to 20amps and add a 20amp plug to avoid tripping their circuit breakers at extreme volume levels. This amplifier also has provisions for 2 extra channels and could be upgraded to a 7707 by adding 2 more amplifier boards in the future. I am in Phoenix where Adcom was based so I do have contacts who have more boards but I didn't feel the need for more than 5x200W.
A previous owner must have had a hard time getting a screw out based on the swirled scratches over one screw. I replaced all of the screws and the threads were all in good shape.
LMK if you have any questions!
-Rich
1 - 3 of 3 Posts
1 - 3 of 3 Posts
