THOR SUBWOOFER
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MODEL: 10.6
3. Has the external fuse blown? Unplug the power cord from the amplifier, then use a small
screwdriver to remove the fuse holder cartridge (located below the cord connection), and
inspect fuse for damage. If blown, replace with the same type & value fuse.
4. Is the auto turn on/off properly set for the inputs used?
5. Is the subwoofer receiving an input signal from your source equipment?
6. Have all controls on the subwoofer (volume, crossover, phase, etc.) been properly set?
7. Is the volume control properly set to match source signal level?
8. If the subwoofer has been running at high levels for an extended period of time, one of the
protection circuits may be engaged;
• Does the built-in amplifier panel feel extremely hot (located on the rear of the cabinet)?
• Is your AC power line circuit sufficiently rated to supply adequate VA required for full
amp output? If your power line is not capable of supplying enough energy, the maximum
output power will be reduced & distortion may become audible.
9. If the protection circuitry is active, the unit may cycle on and off until operating
parameters return to normal. Under more serious conditions, the unit may shut off
completely. Normal operation should return upon cooling, but depending on the type of
fault condition you may be required to turn the main power switch off for several minutes
and then back on again to reset the unit.
10. If the unit exhibits a drastic change in output sound, after you check the items above you
may wish to perform the steps below to assist in troubleshooting by verifying the proper
operation of both amp modules and drivers;
• Turn on your audio equipment, except for the subwoofer’s main power switch, which
should remain “OFF”
• Prepare to play a 20 to 30Hz sine wave (test tone) from your CD/DVD test disc, smart
phone, computer, or other signal source (note: if you do not have this type of test signal,
contact customer service or your place of purchase for assistance)
• Adjust the volume of your equipment & the subwoofer to a medium-high volume level
• Start playing the test signal
• Prepare to carefully listen to the subwoofer’s low frequency output (make sure the room
is quiet)
• Turn the subwoofer main power switch “ON”
• After a couple seconds, you should hear amplifier & driver start playing in a loud,
somewhat uncontrolled fashion, with extra harmonics (warmer fuller sound that normal)
• Turn down the volume or stop the test signal after a few seconds.
The above process helps determine if both amp & driver are functional. If there is no
change and you are still unable to hear the driver and amp power up, inspection by a
qualified technician may be required.
The following conditions require service by a qualified technician:
• The unit has been exposed to liquid.
• The power cord has become damaged.
• The unit does not appear to operate normally or exhibits a marked change in
performance.
• Part of the cabinet, drivers, or electronics have been physically damaged.
• The amplifier (or any amp module) does not power up (if fuses are OK and proper AC
power is applied).
Care of your speaker
Your new subwoofer/-s does not require any regular maintenance or calibration. Normal
dusting or cleaning of the surface for appearance purposes is all that is required.Scroll
rough the menu using the rotary dial until you reach ‘SW version’ and confirm by pressing
<SCROLL/SELECT>. This will display the correct version of software on your product.
CABINET AND BAFFLE
Avoid using harsh detergents or chemicals when cleaning the cabinet. Abrasives,
detergents, or cleaning solutions may damage the finish on the cabinet. We recommend
using only a damp cloth or automotive grade “quick detailer” designed for painted
surfaces, plastic & metal trim, to clean the cabinet.
GRILL
The cloth grill may be carefully cleaned using a vacuum. Animal hair can be removed using
masking tape or similar. Avoid using brushes with stiff bristles that may damage the grill
cloth.
WOOFER
DO NOT use liquids, brushes or a vacuum to clean the drive units.
Protection circuitry
Your new subwoofer is equipped with special protection circuitry to provide maximum
performance with greatest reliability.
The unit is protected against:
• Overheating the transistors.
• Excessive drop in power line voltage.
The first type of protection circuitry which prevents overheating of the transistors operates
constantly without being audible under most situations. In some extreme situations (e.g.
sustained high output levels in warm environments), the unit may shut down momentarily.
This indicates operation of the thermal or under voltage protection circuitry. If this should
happen, you should reduce the volume setting or shut the unit off until normal operating
conditions return. You may also want to plug the unit into a different wall outlet (or circuit), as
inadequate power line voltage & current will be most noticeable under high output conditions.
WARNING
: There is no protection circuit for longterm excessive volume use for some
parts in the amplifier and speaker driver, in this case critical components may break due
to sheer exhaustion.
Note
: If clear audible distortion appear at high volumes, it is recommended to lower the
volume.
Troubleshooting
If you should experience a problem with the operation of your subwoofer, please check all of
the following before seeking service. Following is a simple troubleshooting guide to assist you.
1. Verify unit is plugged in and that the power outlet used supplies the proper AC voltage &
current.
2. Is the power switch on?
