DaytonAudio MA1240A Manuale d'uso - Pagina 4
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TYPICAL 6-ROOM INSTALLATION
NOTES ABOUT HUM:
While the MA1240a has been designed to minimize the possibility
of hum in the audio system, it is still possible that a hum will oc-
cur 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 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 amplifi er 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 qualifi ed personnel. To reduce the risk of fi re 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 (4A rating) before
switching to 230V operation.
Dayton Audio products are warranted free from defects in material and workmanship for 5 years from date of purchase (see exceptions below). 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, that extend the foregoing, and there are no warranties of merchantability or fi tness for any particular purpose. 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, or for the 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. Warranty does not apply to misuse, abuse, neglect,
accident, improper use, etc. Dayton Audio reserves the right to repair or replace the products with either a new or factory refurbished unit.
Exception: Dayton Audio HDMI Cables -- No registration, no questions asked LIFETIME warranty. Replacement of Dayton Audio HDMI cables is with equal or better quality HDMI cables.
Unassembled Kits - A 45-day return policy applies to unassembled kits. Once assembly has been started or completed, kits are deemed used and are nonreturnable for refund/exchange.
This does not limit the manufacturers' warranty policies on any kit component.
This warranty gives you specifi c legal rights and you may also have other rights that 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.
Rated Power Output:
Bridged Power Output:
Input Sensitivity:
Input Impedance:
Frequency Response:
Distortion:
Distortion (Bridged):
Channel Crosstalk:
Signal to Noise Ratio:
Effi ciency:
Power Requirements:
Stand-By Power Rating:
Auto Turn-On Sensitivity: 13.7mV
Dimensions:
Weight:
* The MA1240a complies with the ENERGY STAR and CE EuP directive.
Warranty Information
Warranty Limitations
daytonaudio.com
tel + 937.743.8248
(4)
SPECIFICATIONS:
40 watts per channel RMS at 8 ohms
80 watts per channel RMS at 8 ohms
(8 ohm minimum)
380 mV for full output with all level controls at max.
18K ohm
5 Hz to 72 kHz
.005% THD 20 Hz-20 kHz @ 30W (8 ohm)
.010% THD 20 Hz-20 kHz @ 80W (8 ohm)
80 dB
105 dB A-weighted
63%
115/230 VAC, 60 Hz/50 Hz
115V, 0.264W *
16.7" W x 4" H (including feet) x 14.25" D
33 lbs.
705 Pleasant Valley Dr.
Springboro, OH 45066
USA
© Dayton Audio
®
Last Revised: 4/25/2016