R LTO OWNER'S MANUAL MP8D EIGHT CHANNELS MICROPHONE/INSTRUMENT PREAMPLIFIER WITH DIGITAL OUTPUT www.altoproaudio.com Version 1.
IMPORTANT SAFETY INSTRUCTION CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN TO REDUCE THE RISK OF ELECTRIC SHOCK PLEASE DO NOT REMOVE THE COVER OR THE BACK PANEL OF THIS EQUIPMENT. THERE ARE NO PARTS NEEDED BY USER INSIDE THE EQUIPMENT. FOR SERVICE, PLEASE CONTACT QUALIFIED SERVICE CENTERS. WARNING To reduce the risk of electric shock and fire, do not expose this equipment to moisture or rain. Dispose of this product should not be placed in municipal waste and should be separate collection. 11.
IN THIS MANUAL: 1. 2. 3. 4. 5. 6. 6. 7. 8. INTRODUCTION....................................................................................1 FEATURES...........................................................................................1 QUICK START.......................................................................................2 CONTROL ELEMENTS..........................................................................4 INSTALLATION & CONNECTION....................................................
3. QUICK START This is the fastest way to get something out from your MP8D, if you have a keyboard and a microphone. a. b. c. d. e. f. Keep the Power switch in OFF position. Turn down all the GAIN controls. All the switches must be in OUT position. Plug-in a microphone on Channel 1 MIC input. Connect the output of Channel 1 (use the INSERT socket) to your mixer. Sing or speak into the microphone with normal volume and adjust the channel LEVEL control of half. g.
HOOK MP8D WITH ADAT RECORDING DEVICE UP AC INPUT IN 210-240V 50Hz Rated Power Consumption 35W CH.7 CH.8 OUT CH.6 INSERT INSERT WORD CLOCK Use only with a 250V fuse CH.5 INSERT CH.4 INSERT CH.3 INSERT CH.2 INSERT CH.1 INSERT PUSH INSERT PUSH DIGITAL OUT 1 3 2 1 3 2 1 3 2 1 3 GUITAR Digital Mixer HOOK MIC. IN 2 J.T. MIC. IN 1 3 J.T. MIC. IN 2 J.T. MIC. IN ADAT S/PDIF-AES/EBU 1 3 MIC. IN 250V: T315mAL REPLACE FUSE WITH CORRECT TYPE ONLY J.T. MIC.
SP OT L IG 4. CONTROL ELEMENTS HT FRONT PANEL 5 20 0 6 7 3 CLIP 20 0 CLIP 1 R INSTRUMENT 48V INSTRUMENT 20 0 CLIP 20 0 CLIP 20 0 CLIP 20 0 CLIP 20 0 CLIP 20 0 44.1K 48K CLIP 2 3 4 5 6 7 8 48V 48V 48V 48V 48V 48V 48V 2 4 MP8D SAMPLE RATE 8 CHANNEL MIC PRE-AMPLIFIER E S O T A R 0 1 0 60dB GAIN 2 4 60dB GAIN 0 60dB GAIN 1 0 60dB GAIN 0 60dB GAIN 0 60dB GAIN 0 60dB GAIN 0 60dB GAIN EXT.
SP OT L IG 4. CONTROL ELEMENTS HT 5 SIGNAL LEVEL LEDS These LEDs show you the signal level after the GAIN control. -20 and 0dB LEDs should always light, and CLIP LED should not flash at all to avoid distortion. If CLIP LED flashes, you must turn down the GAIN control or reduce the signal at its source. 6 SAMPLE RATE Selector Switch Your MP8D is provided with 6 different sample rates: 44.1k, 48k, 44.1k x 2, 48k x 2, 44.1k x 4, 48k x 4. You can use this switch to select the right sample rate.
SP OT L IG 4. CONTROL ELEMENTS HT 10 AC Inlet Standard IEC receptacle. Connect your MP8D an AC socket with the supplied power cord. Before powering up your MP8D for the first time, make certain the stated power requirement of the unit matches the voltage supplied by the AC socket. If the fuse blows, replaced with a fuse of the correct type only. 11 WORD CLOCK IN/OUT The Word clock output and input are accessed through these separate BNC connectors. The internal sample rate can send out 44.1k, 48k, 44.
5. INSTALLATION AND CONNECTION Ok, you have got to this point and you are now in the position to operate your MP8D successfully. However, we advise you to read carefully the following section to be the real master of your own mix. Not paying attention enough to the input signal level, to the routing of the signal and the assignment of the signal will result in unwanted distortion, a corrupted signal or no sound at all. So you should follow this procedure for every single channel: 5.
5.
5. INSTALLATION AND CONNECTION 5.
6. APPENDIX Our products are shipped in AES/EBU mode, to change to consumer(S/PDIF) mode, please follow the jumper settings as below. There are 5 jumpers in total: 4 double jumpers and 1 single.
7.
8. TECHNICAL SPECIFICATION INPUT Connectors Impedance Max input level CMRR OUTPUT Connectors Impedance Max output level SYSTEM SPECIFICATIONS Bandwidth Frequency Response Signa/Noise THD Crosstalk Stereo Coupling Digital FUNCTION SWITCHES 48 Volt Phantom Power High pass filter Sample Ext.
9. WARRANTY 1. WARRANTY REGISTRATION CARD To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status, so as to provide a more effective and efficient after-sales warranty service.
SEIKAKU TECHNICAL GROUP LIMITED NO. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwan http://www.altoproaudio.com Tel: 886-4-22313737 email: alto@altoproaudio.com Fax: 886-4-22346757 All rights reserved to ALTO. All features and content might be changed without prior notice. Any photocopy, translation, or reproduction of part of this manual without written permission is forbidden. Copyright c 2007 Seikaku Group NF02206-1.
