DaytonAudio SPA250 User Manual - Page 4
Browse online or download pdf User Manual for Amplifier DaytonAudio SPA250. DaytonAudio SPA250 4 pages. 250w subwoofer plate amplifier
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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 through
the line-level audio system. Although not dangerous, this energy can cause diffi culty with the subwoofer auto signal sensing
circuit, and at the very least will interfere with the quiet enjoyment of your system. The fi rst 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 amplifi er will usually solve the problem.
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 fi t into your outlet, consult an electrician for
replacement of the obsolete outlet. Refer servicing to qualifi ed personnel. To reduce the risk of fi re 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 amplifi ers) that produce heat. Protect the power cord from being walked on or pinched,
particularly at the plugs, convenience receptacles, and at the point where they exit the unit. Only use attachments/accessories specifi ed 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 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 con-
sequential 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.
There are no other warranties, either express or implied, which extend the foregoing, and there are no warranties of merchantability or fi tness 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 specifi c 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.
NOTES ABOUT HUM:
Rated Power Output:
Signal to Noise Ratio:
Effi ciency:
Input Impedance:
Bass Boost:
Low Pass Adjustment:
Phase Adjustment:
Dimensions:
Enclosure Cutout:
Power Requirements:
Stand-By Power Rating: 115, < 0.29W*
Weight:
* The SPA250 complies with ENERGY STAR and CE EuP directive.
IMPORTANT SAFETY INSTRUCTIONS
daytonaudio.com
tel + 937.743.8248
SPECIFICATIONS:
156 watts RMS into 8 ohms @ 0.1% THD
252 watts RMS into 4 ohms @ < 1.0% THD
90 dB A-weighted
66%
10.4K ohms
Switchable, 6 dB @ 35 Hz
40 Hz – 180 Hz
0° (NOR) or 180° (REV)
9-13/16" W x 9-13/16" H x 5 D
8-1/2" x 8-1/2"
115/230 VAC, 60 Hz/50 Hz, 400W
12 lbs.
Warranty Information
Warranty Limitations
705 Pleasant Valley Dr.
Springboro, OH 45066
USA
(4)
© Dayton Audio
Last Revised: 1/7/2015
®