Power Amplifier OVATION MA8.2
Operating Instructions
AVM GmbH, Daimlerstrasse 8, D-76316 Malsch, Germany
Page 1: ...Power Amplifier OVATION MA8 2 Operating Instructions AVM GmbH Daimlerstrasse 8 D 76316 Malsch Germany ...
Page 2: ... in this manual We will make every effort to provide assistance Declaration of conformity for EC only We herewith confirm that the unit to which this manual belongs fulfills the EC rules necessary to obtain the sign The necessary measurements were taken with positive results AVM Audio Video Manuafaktur GmbH Daimlerstraße 8 D 76316 Malsch Germany Website www avm audio com e mail info avm audio com ...
Page 3: ...take care of correct positioning The distances between the holes and the edges of the case differ by 5 mm In case of doubt please measure the distances and position the unit as described in the sketch below NOTE if the unit is not positioned in the correct direction the cover will not fit exactly In this case turn the unit by 180 degrees ...
Page 4: ...herways you might have difficulties whith unscrewing later on Changing fuses CAUTION Before opening the cover plate and changing fuses the unit must be disconnected from mains If the unit doesn t react when switched on one or more fuses might be blown In this case address to your dealer or a qualified repair service Show this manual to the repairing technician in order to make him know how to chan...
Page 5: ...er transformers 2 x 1000VA with extremely low stray fields The energy for the power amplifiers is bffered by two 200 000 µF Capacitor banks The power amplifier itself is a balanced construction That means two amplifiers in bridge connection Each of the power amps has it s own transformers and capacitor bank The amplifiers use 24 output FETs each and thus are able to deliver over 180 amperes if nee...
Page 6: ...ing of the following drawings Front panel 1 Mains switch 2 Display 3a e Menu keys 4 DISPLAY switch Rear panel 5 6 Speaker connectors 7 Balanced input 8 RCA Cinch input 9 Trigger input 10 Power supply socket Connection XLR input Connection trigger input 1 GND Shield a GND 2 Non inverting input b Trigger signal 2V up to 24V 3 Inverting input ...
Page 7: ...no amp The casing does not feel extremely hot to adults but small children generally react more sensitively 2 2 Power supply IMPORTANT NOTES Each OVATION MA8 2 has a maximum power consumption of 3500 VA Peak currents from mains can reach values of far over 10 Amperes Therefore standard power cables with 10 Amperes allowable current cannot be used The power cord that is supplied with the unit has a...
Page 8: ... equipped with both an RCA cinch and XLR input socket 7 8 which can be used as desired Merely connect the pre amplifier with the relevant cable Trigger Signal If you use the AMP pre mk2 as preamplifier the trigger Signal is sent trough the AF cable with no additional connection necessary If you use other preamplifiers that are equipped with trigger outputs then connect the trigger input of the mon...
Page 9: ...mely short paths between the power amplifier and the loudspeaker for the transport of electrical power is achieved There are loudspeakers that react through a short cable with tense although weak bass tones This results from long cables being used during the development of these loudspeakers You might say the cable is a component of the frequency dividing network and therefore responsible for the ...
Page 10: ...s preamplifier trigger Switching to operate and to stand by is controlled via the trigger input 9 auto The OVATION MA8 2 switches on automatically as soon as the pre amplifier delivers musical signals and to stand by when the pre amplifier has not delivered a signal for more than 5 to 10 minutes 3 3 SET DISPLAY MODE bar value While operating a bar informs you about the actual output level The peak...
Page 11: ...r and the selected signal source are operating correctly This is best achieved by checking the functioning of the pre amplifier with head phones Remember to remove the head phones jack after use otherwise the pre amplifier will not emit a signal Ensure that there are no breaks or short circuits in the signal cable between the mono amp and the pre amplifier Test the connecting cable between the Mon...
Page 12: ...l cables of these receivers Your dealer will supply The shield of the AF cable is interrupted the cinch connector has poor ground contact carefully bend The use of a symmetrical cable with wrong setting The display shows OVERHEAT and the unit switches off Switch mains off and let the OVATION MA8 2 cool down for 15 minutes Make sure that the unit is placed according to the tips in chapter 2 1 Place...
Page 13: ...this is not possible we are entitled to refuse acceptance We will not assume responsibility for transport damage under any circumstances If you no longer possess the original pack contact your dealer We will also provide packaging upon request For this service however we will levy an adequate charge A short description of the defect is to be included with the returned unit In cases of doubt we res...
Page 14: ...sient intermodulation TIM not measurable Signal to noise ratio SNR 25 W 4 Ohms 100 dB A Frequency response 0 3 Hz 400 kHz Load band width 25 W 4 Ohms 0 3 Hz 400 kHz Rise time at 4 Ohms 1 µs Slew rate 200 V µs Damping factor 8 Ohms 400 Power supply 230 V or 115 V 50 60 Hz 3500 VA max Operation without signal 150 VA Stand by 1 VA Dimensions L x W x H 420 mm x 432 mm x 253 mm Weight 42 kg Issued Octo...
