Dayton Audio SPA500 500W Subwoofer Plate Amplifier - Manual (Page 4)

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SPA-10 © 2009 Dayton Audio ®
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 com-
ponent 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.
Warranty Limitations
There are no other warranties, either express or implied, which extend the foregoing, and there are no warranties of mer-
chantability 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.
SPECIFICATIONS:
Rated Power Output: (0.92 % THD) 273 Watts* into 8 ohms, 540 Watts* into 4 ohms
*Based on one-third power duty cycle
Signal to Noise Ratio: 98 dB A-weighted
Efficiency: 75%
Input Impedance: 12K ohms
Low Pass Adjustment: 30 Hz – 200 Hz
Phase Adjustment:
0° (NOR) or 180° (REV)
Parametric EQ:
Frequency:
18 Hz – 80 Hz
Bandwidth: 0.1 – 1 Q
Level: -14.5dB – +6dB
Dimensions: 11-15/16" W x 11-15/16" H x 5-1/4" D
Enclosure Cutout: 10" x 10"
Power Requirements: 115/230 VAC, 50 Hz/60 Hz
Stand-by Power Rating: 115V 24W; 230V 18.4W
Weight:
15.2 lbs.
NOTES ABOUT HUM:
While the SPA500 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.
Important Safety Instructions
To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to qualified personnel. To
reduce the risk of fire and shock do not expose unit to rain or moisture. The unit should be connected to an earth grounded AC electrical
socket. The unit should be operated in a well ventilated area. Minimum clearance is 2 inches from the ventilation openings.
Note: Unit is set at the factory for 120V operation. Be sure to change the fuse (5A rating) before switching to 230V operation.