Dayton Audio SPA250 User Manual
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Warranty Information
Dayton Audio
®
products are constructed by industry experts, and are thoroughly tested before shipment. Dayton Audio
®
products are warranted for
the period of one year. This warranty is limited to manufacturer defects, either in materials or workmanship. Dayton Audio
®
is not responsible for any
consequential on inconsequential damage to any other unit or component or the cost for installation or extraction of any component of the audio system.
In the rare case of a product failure, please contact your place of purchase or call our Customer Support Department at (937) 743-8248.
In the rare case of a product failure, please contact your place of purchase or call our Customer Support Department at (937) 743-8248.
Warranty Limitations
There are no other warranties, either express or implied, which extend the foregoing, and there are no warranties of merchantability or fitness for any
particular purpose. The warranty will not cover incidental or consequential damage due to defective or improper use of products. This includes but is
not limited to burnt voice coils, overheating, bent frames, holes in the cone, or broken lead wires.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
Non-Warranty Service: If non-warranty service is required, the product may be sent to the Company for repair/replacement, transportation prepaid,
by calling (937) 743-8248 for details, complete instructions, and service fee charges.
particular purpose. The warranty will not cover incidental or consequential damage due to defective or improper use of products. This includes but is
not limited to burnt voice coils, overheating, bent frames, holes in the cone, or broken lead wires.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
Non-Warranty Service: If non-warranty service is required, the product may be sent to the Company for repair/replacement, transportation prepaid,
by calling (937) 743-8248 for details, complete instructions, and service fee charges.
SPECIFICATIONS:
Rated Power Output:
156 watts RMS into 8 ohms @ 0.1% THD
252 watts RMS into 4 ohms @ < 1.0% THD
Signal to Noise Ratio:
90 dB A-weighted
Efficiency:
66%
Input Impedance:
10.4K ohms
Bass Boost:
Switchable, 6dB @ 35Hz
Low Pass Adjustment: 40 Hz – 180 Hz
Phase Adjustment:
Phase Adjustment:
0° (NOR) or 180° (REV)
Dimensions:
9-13/16" W x 9-13/16" H x 5 D
Enclosure Cutout:
8-1/2" x 8-1/2"
Power Requirements:
115/230 VAC, 60 Hz/50 Hz, 400W
Stand-By Power Rating: 115, < 0.29W*
Weight:
Weight:
12 lbs.
NOTES ABOUT HUM:
While the SPA250 has been designed to minimize the possibility of hum in the subwoofer system, it is still possible that a hum
will occur in rare circumstances. Its safety grounding can create a path for small amounts of 60 Hz energy to travel trough
the line-level audio system. While not dangerous, this energy can cause difficulty with the subwoofer auto signal sensing
circuit, and at the very least will interfere with the quiet enjoyment of your system. The first course of action should be trying to
make sure that all of the audio components are connected to either the same electrical outlet, or at least into the same circuit
branch. Next, cable TV systems are notoriously the culprit, so be sure to try disconnecting all coaxial feeds that are connected
to the system. If this solves the problem, install a coaxial line isolator and reconnect the system. In the very worst case, a line-
level audio isolator/transformer connected to the line-in of the subwoofer amplifier will usually solve the problem.
will occur in rare circumstances. Its safety grounding can create a path for small amounts of 60 Hz energy to travel trough
the line-level audio system. While not dangerous, this energy can cause difficulty with the subwoofer auto signal sensing
circuit, and at the very least will interfere with the quiet enjoyment of your system. The first course of action should be trying to
make sure that all of the audio components are connected to either the same electrical outlet, or at least into the same circuit
branch. Next, cable TV systems are notoriously the culprit, so be sure to try disconnecting all coaxial feeds that are connected
to the system. If this solves the problem, install a coaxial line isolator and reconnect the system. In the very worst case, a line-
level audio isolator/transformer connected to the line-in of the subwoofer amplifier will usually solve the problem.
Important Safety Instructions
Read these instructions – All the safety and operating instructions should be read before this product is operated.
Keep these instructions – The safety and operating instructions should be retained for future reference.
To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. The unit should be connected to an earth grounded AC electri-
cal socket. Do not defeat the safety purpose of the polarized or grounding plug. If the provided plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet. Refer servicing to qualified personnel. To reduce the risk of fire and shock do not expose unit to rain or moisture. Clean
only with dry cloth. Unplug the unit during lightning storms or when unused for long periods of time.
cal socket. Do not defeat the safety purpose of the polarized or grounding plug. If the provided plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet. Refer servicing to qualified personnel. To reduce the risk of fire and shock do not expose unit to rain or moisture. Clean
only with dry cloth. Unplug the unit during lightning storms or when unused for long periods of time.
The unit should be operated in a well ventilated area. Minimum clearance is 2 inches from the ventilation openings. Do not install near any heat sources such
as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Protect the power cord from being walked on or pinched, par-
ticularly at the plugs, convenience receptacles, and at the point where they exit the unit. Only use attachments/accessories specified by the manufacturer.
as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Protect the power cord from being walked on or pinched, par-
ticularly at the plugs, convenience receptacles, and at the point where they exit the unit. Only use attachments/accessories specified by the manufacturer.
Note: Unit is set at the factory for 115V operation. Be sure to change the fuse to a 2.5A rating before switching to 230V operation.
© Dayton Audio
®
Last Revised: 9/1/2011
* The SPA250 complies with ENERGY STAR and CE EuP directive.