Question about Bose 901 EQ1915 Home Equalizer

1 Answer

Can I run two stereo amps from same preamp?

There are two amp outputs on the back of my Adcom GFP 555 preamp,one labeled "lab" which is running my Adcom GFA 555 amp in stereo mode and another next to it labeled "normal"that I would Like to hook up to a Carver PM900 in stereo mode and run both at the same time. Neither one will bridged mono but both will be run stereo.Can I do this?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 482 Answers

Yes, and do tell, what speakers are you powering with these amps?

Posted on Jul 13, 2013

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

richardbramb
  • 1 Answer

SOURCE: hooking up my bose 901 e q to my adcom 600 preamp & adcom 555ll amp

hook up inline outline plugs on back were do they go to

Posted on Feb 20, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How to connect a yamaha p7000s amp to an adcom gfp-555 preamp


Use "Main Out Norm" from the gfp-555 pre-amp and connect to Canon connectors of the Yamaha. This requires a standard RCA to Canon cable for correct connection. Start with this first, if that works OK than try the "Lab" output of your pre-amp, but I am not sure if the Yamaha can handle this or the results of sound quality. Your choice.

Feb 17, 2016 | Yamaha Audio Players & Recorders

1 Answer

Help! My Adcom 555 amp and Adcom preamp is making a buzzing noise in one speaker - any ideas on troubleshooting - is it the preamp or amp?


Try a different audio source.

Disconnect the cable at the preamp end from the amp and see if it stops.

If it does = preamp.

If not = cable or amp.

Reseat cables at both ends with a twisting motion.

Swap left to right.

There is a good chance that a common control may have developed a high-resistance or 'dead' spot through idleness and is causing your symptom. Turn the POWER OFF and operate every control throughout its range a number of times, especially rarely-used ones like Tape Monitors and the Mute control.


Turn the volume to something reasonable and see if that helped.

Lots of ways to eliminate sources of the fault and isolate the problem.

Mar 12, 2011 | Audio Players & Recorders

1 Answer

I have a ADCOM GFP-710 Stereo preamplifier when I turn in on, it will only stay on for 1 second. That's it. Any ideas? Thanks, fred.


Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.


Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.


Check for loose speaker connections as a root cause for intermittent shutdown.

Feb 14, 2011 | Adcom GFP-710 2-Channel Amplifier

1 Answer

Adcom gfa 555 blows the 10 amp fuse and the 6 amp fuse on the far right


Any fuse blowing is caused by a shorted component in either the power supply section or main audio amp part. Follow the fuse circuit and see where it leads you. Look around for burnt of damaged parts. Suspect anything sitting on a heat sink. The most common culprit is the audio amp main transistors, especially if someone shorted the speaker leads together. In the power part it could be the transformer, the large Electrolytic capacitors, rectifier, or voltage regulator. Some amps use an IC for amplification and this can blow the fuse.

Oct 19, 2009 | Adcom GFA-5500 2-Channel Amplifier

1 Answer

I have a problem with the Main Output on my Adcom 710 Preamp


Hi am gathering that when it is bypassed (tone) its fine which suggests that the problem is on the treble/bass pots or boards. Try cleaning all the pots with switch cleaner first (open the amp and spray it into the pots them selves through little holes). If not there then Check for a loose wire, and can also tap the boards with back of screwdriver while the amp is playing to listen for dry joints (loose solder and CAUTION for getting a shock also!!)
Pretty sure though on the pots or dry joints.

Best of luck

Jul 24, 2009 | Adcom GFP-710 2-Channel Amplifier

1 Answer

Adcom 7500, Adcom 5400(bi-amp), Marantz AV-9000, Dakiom HA103


Try just the power amp on ..nothing connected
no Dakiom thingy either. It's a matter of elimination. Start at the output device and work back. Keep the Dakiom out of the loop.
If there's hum with just the Adcom..then it's the ADCOM

Mar 25, 2009 | Adcom GFA-7500 5-Channel Amplifier

1 Answer

How to bridge GPA 555 adcom amp from 8 om to 4 om


First of all, when bridging an anp, the impenence that it can handle usually goes UP not down. I don't believe that the GPA555 can be bridged without circuit modification.

Dan

Feb 11, 2009 | Adcom GFA-5400 2-Channel Amplifier

Not finding what you are looking for?
Bose 901 EQ1915 Home Equalizer Logo

312 people viewed this question

Ask a Question

Usually answered in minutes!

Top Bose Audio Players & Recorders Experts

The Knight
The Knight

Level 3 Expert

73619 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Ben Armstrong

Level 2 Expert

334 Answers

Are you a Bose Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...