Adcom GFA-5800

bigyank
bigyank Posts: 224
edited March 2008 in For Sale (FS) Classifieds
Been my daily driver since 2001. 250 watt/ch power amplifier. Very nice shape will be double boxed for shipping.

475.00 + shipping. I am located zip code 19320

Yank
Polk Monitor 7
Polk Atrium 55
Post edited by bigyank on
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  • ben62670
    ben62670 Posts: 15,969
    edited March 2008
    Hey $475 is too cheap! I have the same amp, and these have balanced inputs also. This is one slamming amp! Real tight hard hitting chest punching bass. Buy this one. Mine is going to cost more. 400wpc at 4ohms. Can handle lower ohms without a problem.
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • furball
    furball Posts: 234
    edited March 2008
    Is this a 2 channel or multichannel amp? How much does it weigh? And does it have volume attenuators?
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  • ben62670
    ben62670 Posts: 15,969
    edited March 2008
    I forgot. SDA friendly. Tie the speaker ground terminals together;)

    http://www.adcom.com/data/manuals/gfa5800manual.pdf
    2 channel almost 60# dampening factor of greater than 1100:eek:
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • John in MA
    John in MA Posts: 1,010
    edited March 2008
    I'm pulling out my hair here. This would be perfect for me and I'm still waiting for my audio budget to recover. I'm trying to think of a way I could afford this right now.
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  • bigyank
    bigyank Posts: 224
    edited March 2008
    SPECIFICATIONS
    Power Rating (To FTC Requirements):
    250 watts continuous average power into 8 ohms at any frequency between 20Hz and 20kHz with both channels driven at less than 0.18% THD
    400 watts continuous average power into 4 ohms at any frequency between 20Hz and 20kHz with both channels driven at less than 0.18% THD
    THD Plus Noise at 250 watts into 8 Ohms (Typical)
    20Hz ... 0.018%
    1kHz ... 0.02%
    10kHz ... 0.07%
    20kHz ... 0.13%
    THD Plus Noise at 400 watts into 4 Ohms (Typical)
    20Hz ... 0.018%
    1kHz ... 0.02%
    10kHz ... 0.08%
    20kHz ... 0.16%
    Frequency Response at 1 watt into 8 Ohms
    10Hz to 20kHz ...+0,-0.25dB
    Signal to Noise Ratio, "A" Weighted
    250 watts into 8 ohms ... >100dB
    Damping Factor
    20Hz to 20kHz ... >1100
    Maximum Chassis Dimensions
    8in(203mm)x17in(432mm)x14¼(362mm)
    Weight
    56.5lbs.(124.3kg)
    Shipping Weight

    Yank
    Polk Monitor 7
    Polk Atrium 55
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  • cubdog
    cubdog Posts: 835
    edited March 2008
    I'd love to have as well. But after a TT Preamp and CDP purchase this month I'm tapped out. Great price, somebody grap it quick.

    cubdog
    Shuguang Classic S8MK
    Emotiva XDA-2
    Bel Canto M300 mono blocks
    Bel Canto DAC 1.5
    Squeezebox Touch
    Sony SS-M7
    A/D/S L710
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  • Tex
    Tex Posts: 189
    edited March 2008
    Somebody tell me, how much better is Adcom than Carver? I am quite happy with what I have but upgrades are always tempting.
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  • ben62670
    ben62670 Posts: 15,969
    edited March 2008
    Tex wrote: »
    Somebody tell me, how much better is Adcom than Carver? I am quite happy with what I have but upgrades are always tempting.

    Oh no you didn't:eek: Depends on who you ask. This is one of the top 3 best Adcoms produced. I hope this doesn't turn into a debate thread. Wrong place;)
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • Tex
    Tex Posts: 189
    edited March 2008
    I am not looking for a debate over the two brands so let me be more specific. How much better would this amp be over a Carver TFM-25. I believe the power ratings are fairly close to each other.
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  • ben62670
    ben62670 Posts: 15,969
    edited March 2008
    I think you are generally going to get the Adcom has the slam, and some are going to say the Carver is more neutral. I know I have not been able to get mine too clip even at 2ohms, and 19 drivers per channel.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • John in MA
    John in MA Posts: 1,010
    edited March 2008
    Hmm, if my snowblower sells tomorrow I'll have some cash... PM sent
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  • steelervic
    steelervic Posts: 142
    edited March 2008
    great amp at an incredible price! i compared one of these side by side with a 5500(i think they sell for close to $500) and the power of the 5800 blew me and it away, seemed like a lot more than a 50w difference. is it one that was made in the usa?
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  • Gadabout
    Gadabout Posts: 1,072
    edited March 2008
    PM sent
    Without music to decorate it, time is just a bunch of boring production deadlines or dates by which bills must be paid. ..... Frank Zappa
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  • bigyank
    bigyank Posts: 224
    edited March 2008
    John in MA wrote: »
    Hmm, if my snowblower sells tomorrow I'll have some cash... PM sent

    PM sent as well. This amp is a frigging boat anchor and the only reason I am selling is to fund another purchase. Moving in a new direction (tubes).

    Yank
    Polk Monitor 7
    Polk Atrium 55
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  • ben62670
    ben62670 Posts: 15,969
    edited March 2008
    Not sold?
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • bigyank
    bigyank Posts: 224
    edited March 2008
    Waiting on the first responder. :D

    He has until this evening and then we move onto number 2. :p

    Yank
    Polk Monitor 7
    Polk Atrium 55
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  • 4406bbl
    4406bbl Posts: 194
    edited March 2008
    Put me in line if the rest bail.
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  • John in MA
    John in MA Posts: 1,010
    edited March 2008
    Assuming everything goes according to plan by tomorrow evening I'm in for the amp.

    This place is a bad influence, I'm going to be eating catfood thanks to you people.
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  • cubdog
    cubdog Posts: 835
    edited March 2008
    John in MA wrote: »
    Assuming everything goes according to plan by tomorrow evening I'm in for the amp.

    This place is a bad influence, I'm going to be eating catfood thanks to you people.

    My dogs like cat food. Maybe you will too.

    cubdog
    Shuguang Classic S8MK
    Emotiva XDA-2
    Bel Canto M300 mono blocks
    Bel Canto DAC 1.5
    Squeezebox Touch
    Sony SS-M7
    A/D/S L710
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  • Hi-Buy
    Hi-Buy Posts: 110
    edited March 2008
    If this isn't sold in a couple of days. I'll take it.
    Big thanks to "Neskahi" !
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  • hwu56
    hwu56 Posts: 30
    edited March 2008
    bigyank wrote: »
    SPECIFICATIONS
    Weight
    56.5lbs.(124.3kg)
    Shipping Weight

    Yank

    How could this be possible ? :confused:
    AVR: Boston Acoustic AVR7100 (110w x 7)
    Amp: Carver M-1.5t (for front speakers Polk RTi-12)
    Amp: B&K AV6000 (for center and 4 surround speakers)
    Sub1: Velodyne CT-100
    Sub2: Polk PSW505
    DVD: Marantz
    Cables: all Signal Cable IC's and speaker cables
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  • djlogix
    djlogix Posts: 115
    edited March 2008
    Damn I'd love to pick this up for my RTi10's. :(
    I should've listened way back in 2008, they told me I'd go broke... they were right
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  • ben62670
    ben62670 Posts: 15,969
    edited March 2008
    John in MA wrote: »
    Assuming everything goes according to plan by tomorrow evening I'm in for the amp.

    This place is a bad influence, I'm going to be eating catfood thanks to you people.

    Good tunes make cat food taste like caviar:cool:
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • John in MA
    John in MA Posts: 1,010
    edited March 2008
    ben62670 wrote: »
    Good tunes make cat food taste like caviar:cool:

    I guess I'll be finding out.

    Reminds me of a scene from the TV show "Red Dwarf." "Now I know why dogs lick their testicles. It's to get the taste of the food out of their mouths."
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  • bigyank
    bigyank Posts: 224
    edited March 2008
    hwu56 wrote: »
    How could this be possible ? :confused:

    Double checked the owner's manual and if it is written down it must be tru.:rolleyes:

    Yep, 50+ lbs! :D

    I have the listing of who wants this so first come first served.

    Yank
    Polk Monitor 7
    Polk Atrium 55
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  • John in MA
    John in MA Posts: 1,010
    edited March 2008
    PayPal sent at 5pm today. I gotta take a vacation from Club Polk, this is bad for my health. :D
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  • John in MA
    John in MA Posts: 1,010
    edited March 2008
    hwu56 wrote: »
    How could this be possible ? :confused:

    About average for a decent amp in this power range. The active cooling keeps the weight down, vs. something like my Heathkit that's 60 pounds of heatsink. A McInotsh would be around 100 pounds due to the autoformers.

    On the other end, a trick amp like a Carver will be a lot less. Or a really lightly built conventional one like a Phase Linear. My 200WPC PL400 clocks in at 28lbs.
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  • cubdog
    cubdog Posts: 835
    edited March 2008
    John in MA wrote: »
    PayPal sent at 5pm today. I gotta take a vacation from Club Polk, this is bad for my health. :D

    Good for you! Me too. I could have been in a world of trouble.

    cubdog
    Shuguang Classic S8MK
    Emotiva XDA-2
    Bel Canto M300 mono blocks
    Bel Canto DAC 1.5
    Squeezebox Touch
    Sony SS-M7
    A/D/S L710
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  • bigyank
    bigyank Posts: 224
    edited March 2008
    John in MA wrote: »
    PayPal sent at 5pm today. I gotta take a vacation from Club Polk, this is bad for my health. :D

    Sold! Will try to get it mailed to you tomorrow, worst case Saturday am. Thank you very much!:D

    yank
    Polk Monitor 7
    Polk Atrium 55
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  • John in MA
    John in MA Posts: 1,010
    edited March 2008
    No rush on the shipping. Whatever's the easiest path to it getting here in one piece.
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