Question about Bose 901 VI Main / Stereo Speaker

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Terminal screws My terminal screwsa are very loose how do I tighten them

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Turn the screws (posts) while pulling on the nuts (tighteners)

Posted on Sep 03, 2008

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Posted on Jan 02, 2017

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How do you remove the volume knob on the Sunfire Subwoofer? Does it pull out easily or do you have to take the amplifier plate off and tighten from the inside?


Hi,
I had the same problem as this, the fix was quite simple and the hum never came back.

If you pull straight out on the sub amp's volume knob it will slide off, then to fix the hum, tighten the nut that is behind the knob on the potentiometer and your hum should go away. My hum went away and never came back after this fix. Hope this helps you.

Mar 31, 2013 | Sunfire True Sub MK II Subwoofer

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I need leads to connect my NAD C320 BEE amplifier to PSB T45 speakers. Not sure which plugs are needed to fit into the speakers.


From the C320 manual, Page 5...

11. SPEAKERS

Speaker terminals for speakers with an impedance of 4 ohms or more. Connect the right speaker to the terminals market 'R +' and 'R-' ensuring that the 'R+' is connected to the '+' terminal on your

loudspeaker and the 'R-' is connected to the loudspeaker's '-' terminal. Connect the terminals marked 'L+' and 'L-' to the left speaker in the same way.


Always use heavy duty (16 gauge; 1.5mm, or thicker) stranded wire to connect loudspeakers to your NAD C320. The high-current binding post terminals can be used as a screw terminal for cables
terminating in spade or pin sockets or for cables with bare wire ends.

BARE WIRES AND PIN CONNECTORS

Bare wires and pin sockets should be inserted into the hole in the shaft of the terminal. Unscrew the speaker terminal's plastic bushing until the hole in the screw shaft is revealed. Insert the pin

or bare cable end into the hole and secure the cable by tightening down the terminal's bushing.

Ensure bare wire from the speaker cables does not touch the back panel or another socket. Ensure that there is only 1/2" (1cm) of bare cable or pin and no loose strands of speakers wire.

Register and download the PSB manual for free at retrevo.com

http://www.retrevo.com/support/PSB-T45-Speakers-manual/id/23107ag412/t/2/

If you're pondering those jumpers on the back of the speakers, my advice is to leave them in place and ignore them. Connect the speaker cables to either plus or minus.

Bi-wiring does nothing but make you use twice as much speaker wire for the same electrical effect. Bi-amping assumes there are deficiencies in your electronics that must be worked around, again by using more speaker wire and separate amps.

Apr 15, 2011 | PSB Century 600i Speaker

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I bought replacement drivers for Mission 780 speakers...how do I replace them...no visible screws...does the cover plate come off?


Screws are hidden under the plastic plugs where the covers slot in. remove cover, then maybe use a pencil and fingers to prize out the rubber "holes". Once all four removed, unscrew the four screws visible. Carefully lift off baffle, note that tweeter will be attached to the baffle. You then have easy access to the driver, again another four screws holding that in. You may find erosion on the terminals.

Jan 10, 2010 | Mission 780 Main / Stereo Speaker

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Taking apart a JBL N24


I removed the tweeter and found that I could stick two fingers through the hole and touch the back of the speaker. I was afraid that if I applied to much force I would break something, but after seeing a schematic of the speaker I realized there was nothing else attached except the wires. So, I used some muscle. It took a lot of pressure, but the speaker finally popped out. I was able to tighten the one screw that held down the circuit board in the back and re-assembled the speaker. Problem fixed.

Nov 15, 2008 | Audio Players & Recorders

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Jbl eon


the eon woofer is designed to fit the small frame of the inside cabinet. The EV woofers look too deep to fit but you can try. I do think that the built in amps were set to work with only the JBL woofers so there might be a signal problem using the built in amp. The eon face seems to have their own screws to hold the grill so if they aren't holding you can drop some cement to help hold the srews in place. The front does not allow removal of the woofer so it seems whatever you do should not effect anything.

Nov 02, 2008 | JBL EON 15-G2 Powered DJ Speaker With EQ...

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How do i open the speaker to reconecct the wires inside?


It may not be only wires loose; the speaker(or speakers) may be damaged.

The common 'dynamic' speaker has a centered magnet in an assembly that extends the field of the magnet around a coil of wire on a form called the 'voice coil' that is firmly attached to the cone which moves in and out to 'pump' air and produce sound.
The clearances (gap) between the magnet assembly and the voice coil that sits in a narrow space between the magnet and the outer field piece is very small and critical.

Once positioned in the factory, glue is used to keep the field assembly from slipping and rubbing against the voice coil.

A strong shock will break the glue bond and, if severe enough, clamp the voice coil so it cannot move freely any more.

Since the Bose is a quality product, the cabinet may be assembled with glue and screws that are concealed.

If you know someone with a simple multimeter, they may be able to check at the terminals to see if there is any continuity from the terminals to the speaker.
If it doesn't have any, then perhaps only a wire is broken between the terminals and the speakers.
There is with high probability also a filter inside that separates the frequency range and sends the signal to separate speakers that produce different ranges of sound.

Jun 26, 2008 | Bose VCS-10 Center Speaker

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Paradigm PDR-10 Sub Box


Since this is a sub I assume the sound is not coming from the speaker but is mechanical and coming from the amp in back. The tranformer can be the problem if it has delaminated or may be loose. Try removing the amp and tightening the screws. If there are rubber grommets to isolate the tranformer don't overtighten. www.pardigm.com for contact info and parts. They are very nice. If the noise is coming from the speaker then you are still under warrantee and they will replace it free.

Sep 28, 2006 | Paradigm PDR 10 Speaker

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