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Earthquake subwoofer unit does not work. very low volume even with the volume set high

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SOURCE: iw-803 earthquake sound in wall

many amplifiers protect against a short and against an open. They are looking for speaker resistance within limits. Your wire to the speaker may be too long or too thin. You may have hooked up more than 1 speaker per output causing too low resistance. Keep your wires short as possible and use 12 or larger gauge wire if you are driving large wattage speakers. Check the ohm rating on your speakers and compare them with what the amplifier calls for. Hope this helps

Posted on Jan 03, 2011

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Speaker at low volume and can't increase


How are you connected? , if were less, try with a cable and first of all use high quality audio, no bad recorded stuff and full batteries . it should be doing it . if none of the connection modes offers a higher volume, then it's the unit.
greeting, Richard

Jan 10, 2015 | Bose Corp Bose SoundLink Mini

1 Answer

Harman kardon hkts7 subwoofer problems


check the audio stage and replace the audio stage ics
u 201,202,301. with TL074 ic

Mar 24, 2013 | Harman Kardon HKTS 7 System

1 Answer

My Subwoofer Sony SA_WM500 was always burn the fuse therefore I had to change the STK, but now it takes off sound very low, How can I have back the high sound level? Zaruque Quimuenhe


It's no clear what you mean by "I had to change the STK", but if that means you have somehow defeated the fusing or place a larger fuse than it requires then STOP and shut it off. You might be risking a fire or more serious damage to the amp.

I would recommend you find a hands-on tech to look at it.
----

If you have resolved the fuse problem and now just have low subwoofer volume, you might want to track it back to the source and ITS subwoofer volume setting. There IS a volume level control on the sub, too. Turn it up.

The manual is here:

http://www.retrevo.com/support/Sony-SA-WM500-Subwoofers-manual/id/752ag404/t/2/





Jan 11, 2011 | Sony SA-WM500 Subwoofer

1 Answer

Iw-803 earthquake sound in wall speaker throws amp into protection mode at high volume.. removed all speaker components ( woofer, mid, tweet) and just hooked up crossover - still shots at high volume....


many amplifiers protect against a short and against an open. They are looking for speaker resistance within limits. Your wire to the speaker may be too long or too thin. You may have hooked up more than 1 speaker per output causing too low resistance. Keep your wires short as possible and use 12 or larger gauge wire if you are driving large wattage speakers. Check the ohm rating on your speakers and compare them with what the amplifier calls for. Hope this helps

Jan 03, 2011 | Earthquake Sound IW-803 Main / Stereo...

1 Answer

Can we use the subwoofer as an amplifier for speakers? it has jacks for speaker in/out, but i can't figure out how to make it work because the speakers have no sound.


I don't believe this hookup is amplified; but, if you have used the regular unfiltered speaker connections from your receiver/amplifier to hookup the subwoofer, the system will pass the signal thru the outputs subject to the crossover adjustment on the back panel. You cannot get the full signal if your system is sending only the bass signal to the subwoofer. I have copied the instructions below from the manual. You would set the high freq crossover to the low end of your satellite's frequency range. The full manual is here: http://www.jbl.com/EN-US/Products/Pages/ProductSupportDetails.aspx?PID=PSW-D110

High-Pass Control
• If you hooked up your subwoofer
as shown in Hookup
3 on page 4, you also have
the capability of adjusting
the high-pass frequency.
The High-Pass control
determines the frequency at
which the main speakers
will start reproducing
sounds. If your main speakers
can comfortably reproduce
some low-frequency
sounds, also set this control
to a lower frequency
setting, between 50Hz –
100Hz. This will concentrate
the subwoofer’s
efforts to the ultradeep
bass sounds, while your
main speakers continue to
reproduce the mid-bass
information. If you are
using smaller bookshelf
speakers that do not extend
to the lower bass frequencies,
set the high-pass crossover
control to a higher setting,
between 125Hz – 180Hz.
With this setting, your main
speakers will not have the
burden of reproducing any
low-frequency sounds.
• If you hooked up your subwoofer
as shown in Hookup
1 on page 3, the high-pass
frequency is fixed at 180Hz.
• If you hooked up your subwoofer
as shown in Hookup
2 on page 4, there is no
high-pass control. Unless
your receiver/amplifier
incorporates a high-pass
crossover, your main speakers
will continue to get a
full-range signal.
Final adjustment and blending
of the low-pass and high-pass
controls may evolve over several
listening sessions. A good
starting point would be to set
both the low- and high-pass
controls to the same frequency
and adjust from that point.

Sep 07, 2010 | JBL PSW-D110 Speaker

1 Answer

My Yamaha SW118 keeps cutting out (volume reduces to v low level) even when driven by 500W amp. Doesn't seem to be the amp but not sure if the speaker has it's own internal protection. Can anyone advise?


Poly Switch
All full-range loudspeakers are fitted with a self-resetting
poly switch that protects the high-frequency driver from
damage caused by excessive power.
If a loudspeaker cabinet loses high-frequency output, immediately
remove power from the unit and wait for two to three
minutes. They should allow the poly switch to reset. Reapply
power and check the performance of the high-frequency
driver before continuing with the power reduced to a
level that does not cause the poly switch to interrupt the signal.
On the SW115V/SW118V/SW218V sub woofer, the Poly
Switch protects the woofer and a similar routine should be
followed if its output is lost.

Aug 29, 2010 | Yamaha SW118-IV 18" Subwoofer Speaker

1 Answer

Home Theater Subwoofer rattles


Sounds like the controls have a buildup of dust on them and creating a magnetic charge and thus noise. Radio Shack sells "Tuner wash" Use it sparingly, it only takes a little, then work the controls back and forth for a few seconds and turn back on. You may have to do this a couple times to fully clean the potentiometer (vol control) (crossover control) Take the knobs off the unit before you spray it. If you have a high gloss finish on the sub, put a rag around the control to keep excess wash off the plastic. It will varnish a gloss finish. Just use it carefully. Hope this helps

Jun 22, 2009 | Atlantic Technology System 170 System

1 Answer

Popping during action scenes at moderate volume


the woofer is being overdriven and the voice coil is hitting the magnet structure.eventually it will damage the coil end and it will scrape in the gap.

May 14, 2009 | AAD C10 Subwoofer

1 Answer

No sound


1. Verify unit is plugged in and power outlet used is active.
2. Is power switch on?
3. Is auto turn on/off set properly?
4. Is unit receiving an input signal from your source?
5. Have all controls on subwoofer (volume, crossover, phase, etc.) been
properly set?
6. If unit has been running at high levels, one of the protection circuits may be engaged.
7. Has the built-in amplifier overheated?

http://www.velodyne.com/products/manuals/DLS.pdf

Mar 22, 2009 | Velodyne DLS-3500 Subwoofer

1 Answer

My Earthquake Supernova MK-IV 12 stopped working


kindly check out maybe the fuse was already explode...check the connections specially the coil of the speaker using a multi tester....thanksss and gud luck

Nov 28, 2008 | Earthquake Sound MKIV-12 Subwoofer

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