Owner’s Manual Thank you for choosing the Yamaha AD8HR AD converter with remote microphone preamp. The AD8HR is an eight-channel AD converter equipped with remote microphone preamps that feature 96kHz, 24-bit linear AD conversion, 128-times oversampling, and a dynamic range of 110dB. Its input section features balanced XLR connectors, high-quality mic preamps, +48V phantom power, and support for both mic and linelevel inputs.
ad8hr_en_de_fr_es_ss.fm Page 1 Thursday, August 24, 2006 10:01 AM Notes on rack-mounting the unit If you install the AD8HR along with another AD8HR or other device in a rack that is not well ventilated, the temperature inside the rack may rise due to the heat generated from the devices and the devices may be unable to perform properly. When you rack-mount the unit, be sure to keep a gap of 1U (4.5cm) above and below the unit for better ventilation.
PRECAUTIONS PLEASE READ CAREFULLY BEFORE PROCEEDING * Please keep this manual in a safe place for future reference. WARNING Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical shock, short-circuiting, damages, fire or other hazards. These precautions include, but are not limited to, the following: Power supply/Power cord Water warning • Only use the voltage specified as correct for the device.
Explanation of Graphical Symbols CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
ADVARSEL! IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT.
Part Names and Functions Part Names and Functions Front Panel 3 4 7 5 96kHz 88.2kHz 48kHz 44.1kHz +48V HPF +48V MASTER dB OFF ON WORD CLOCK 1 2 6 A WORD CLOCK indicators These indicators indicate the currently selected wordclock source. If the unit is not locking to the selected wordclock source, the corresponding wordclock source indicator flashes. B [WORD CLOCK] button This button enables you to select the wordclock source from 44.1kHz, 48kHz, 88.
Part Names and Functions Rear Panel 3 1 2 4 5 6 7 A Grounding screw For safety, use this screw to ground the AD8HR. The included power cable has a three-pin plug. If the AC outlet is grounded, the AD8HR will be grounded correctly via the power cable. If the AC outlet does not provide a suitable ground, this screw must be connected to a suitable ground point. Grounding is also an effective method for eliminating hum, interference, and other noise.
Basic Operations Basic Operations Selecting the Wordclock 3 You can select from the following wordclock source options: internal clock (44.1kHz, 48kHz, 88.2kHz, and 96kHz), WORD CLOCK IN, or DIGITAL OUT A. 1 2 Press the [WORD CLOCK] button repeatedly to select the wordclock source. The indicator of the selected wordclock flashes rapidly. While the indicator is flashing rapidly, press the [WORD CLOCK] button again.
Basic Operations Setting the High Pass Filter Each channel features a high pass filter (12dB/octave) that you can turn on or off. You can set individual cutoff frequencies for each channel’s high pass filter. 1 2 3 4 5 Press the Channel Select button to select a channel. The selected channels’ Channel Select button indicators light up. The channel HPF indicator lights up when the high pass filter for the selected channels is turned on.
Basic Operations Adjusting the LED Brightness Follow the steps below to adjust the brightness of the front panel LED and Gain display. 1 While pressing and holding down the Channel Select button of Channel 8, rotate the Gain control to adjust the brightness. You can adjust the brightness in seven steps. Panel Operation Lock You can lock the buttons and controls on the front panel to avoid any trouble due to unauthorized or unintentional operation.
Connection Examples Connection Examples AES/EBU Connections AD8HR Daisy Chain Connection Use a D-sub 25-pin AES/EBU cable to connect a digital audio device that supports the AES/EBU format. To connect a Yamaha PM5D or DM2000 to the AD8HR, first you must install an optional I/O card (MY8-AE, MY8-AE96S, MY8-AE96, or MY16-AE) in the PM5D or DM2000. Digital audio devices (PM5D, DM2000, etc.) You can connect multiple AD8HRs to a Yamaha PM5D or DM2000.
Wordclocks Wordclocks For proper AD conversion and digital audio data transmission and reception, the D8HRs and external digital audio devices must lock to an identical wordclock. The AD8HR is capable of transmitting a wordclock signal of 44.1kHz, 48kHz, 88.2kHz, and 96kHz, you can use the AD8HR as the wordclock master and the external devices as wordclock slaves. The AD8HR can also lock to the wordclock signal received at the [DIGITAL OUT A] connector or [WORD CLOCK IN] connector.
Appendix Appendix General Specifications ■ Analog Input ■ LEDs INPUT 1–8 XLR-3-31 AD converter WORD CLOCK Balanced 24-bit linear 128-times Oversampling [44.1kHz]/[48kHz]/[88.
Appendix Electrical Characteristics Measured at DIGITAL OUT. Output impedance of signal generator: 150Ω. ■ Frequency Response fs=44.1kHz or 48kHz @20Hz–20kHz, with reference to –1dBFs @1kHz Input Output Conditions MIN TYP MAX UNITS INPUT 1–8 DIGITAL OUT 1–8 GAIN: –62 dB –3 1 dB INPUT 1–8 DIGITAL OUT 1–8 GAIN: +10 dB –1.5 1 dB fs=88.
Appendix ■ LED Level Meter Input INPUT 1–8 Output DIGITAL OUT 1–8 Conditions Jitter of PLL 0 dBFs dBFs –12 amber LED: ON –12 dBFs –18 amber LED: ON –18 dBFs –30 green LED: ON –30 dBFs –48 green LED: ON –48 dBFs MAX UNITS Normal Rate 39.69 MIN TYP 50.88 kHz Double Rate 79.38 101.76 kHz DIGITAL IN fs=44.1kHz 10 ns DIGITAL IN fs=48 kHz 10 ns DIGITAL IN fs=39.69–50.88 kHz 20 ns DIGITAL IN fs=88.2 kHz 10 ns DIGITAL IN fs=96 kHz 10 ns DIGITAL IN fs=79.38–101.
Appendix HA REMOTE Pin Assignment Table Pin Signal Name Pin Signal Name 1 N.C. 6 RX+/DSR*1 2 RX-/RXD*1 7 RTS 3 TX-/TXD*1 8 CTS 4 TX+/DTR*1 9 N.C. 5 GND *1. RS422/PC 383.5 19 250 353.5 50 11 Dimensions 44 45 480 65 When the included rubber feet are attached* 350 Unit mm * If you do not intend to rack mount the AD8HR, attach the included rubber feet to the bottom surface of the unit. Attach the rubber feet in the positions marked by small circles on the bottom.
For details of products, please contact your nearest Yamaha representative or the authorized distributor listed below. Pour plus de détails sur les produits, veuillez-vous adresser à Yamaha ou au distributeur le plus proche de vous figurant dans la liste suivante. NORTH AMERICA CANADA Yamaha Canada Music Ltd. 135 Milner Avenue, Scarborough, Ontario, M1S 3R1, Canada Tel: 416-298-1311 U.S.A. Yamaha Corporation of America 6600 Orangethorpe Ave., Buena Park, Calif. 90620, U.S.A.