ALESIS
Matica 500/900
Reference Manual
Page 1: ...ALESIS Matica 500 900 Reference Manual...
Page 2: ...Power Amplifier 4 2 Installation 5 Unpacking and Inspection 5 Physical Installation 5 Electrical Installation 6 Audio Installation Input Wiring 7 Audio Installation Output Wiring 8 System Setup and T...
Page 3: ...2 Matica 500 900 Reference Manual...
Page 4: ...er than 103 dB A weighted below rated output and very low harmonic distortion typically below 009 midband make them ideally suited for the most critical studio monitoring applications These amplifiers...
Page 5: ...f the audio circuits assuring clean stable operation in difficult environmental conditions An aLink 25 pin connector is provided for future expansion by the user Among the planned accessories for atta...
Page 6: ...Introduction Matica 500 900 Reference Manual 5 of recent developments in electronic componentry and innovative design concepts make the Alesis power amplifiers ideal for any professional application...
Page 7: ...erforated grilles used as fillers will help exhaust the hot air from within the rack An exhaust fan is required in a rack with a closed back to assure sufficient air exhaust capacity If the rack has a...
Page 8: ...between these screws which is the preferred method of use The AC cord is designed to be fed by an outlet that includes a solid earth ground This ground connection is an important safety feature desig...
Page 9: ...ANNEL AUDIO INPUT WIRING TIP RING SLEEVE PIN 2 PIN 3 PIN 1 BRIDGED MONO B OUTPUT OUTPUT A FOR BRIDGED MONO USE A INPUT 120 V 60 Hz Figure 2 Amplifier rear panel controls and connections Warning Be sur...
Page 10: ...annel The input impedance of the Alesis amplifiers is 20 kW in balanced or unbalanced configuration Thus the inputs of several amplifiers may be connected in parallel if desired The maximum number of...
Page 11: ...ould be chosen according to the load impedance and the length of the wire run from the amplifier to the loudspeaker terminals See Table 2 Because the wire s resistance to the flow of current is in ser...
Page 12: ...de assuming that the input has been connected to Channel A and the Stereo Mono rear panel switch has been set to Mono the loudspeaker wires are connected to the two center terminals only Note that unl...
Page 13: ...system gain structure Setting the system gain is fairly straightforward but if it is not properly adjusted the system s distortion and noise characteristics may be less than optimum The input sensiti...
Page 14: ...Installations Matica 500 900 Reference Manual 13...
Page 15: ...lly advisable to turn on the power amplifiers last and to turn them off first so that any turn on or turn off transient signals generated by other equipment in the system are not amplified and sent to...
Page 16: ...Installations Matica 500 900 Reference Manual 15...
Page 17: ...require service by a qualified technician Is the amplifier input connected to a live signal source Is the loudspeaker solidly connected to the amplifier output at both ends of the speaker cable Is th...
Page 18: ...Are all loudspeakers properly connected Are both sides of a balanced input solidly connected Is the low side of the amplifier input connected to Audio Ground with an unbalanced input connection Audio...
Page 19: ...20 kHz Slew Rate 80 V ms two channel 160 V ms bridged mono THD 0 009 1 kHz 4 W load Hum and Noise Better than 103 dB below rated output A weighted Input Sensitivity 0 775 V RMS for rated power Input...
Page 20: ...tch DB 25 aLink accessory connector and mounting holes for accessory boxes strain relieved line cord chassis ground connection screw Dimensions 3 1 2 x 19 2U panels Matica 500 12 1 4 311 mm depth Mati...
