User's Guide ® High Quality 20 Bit / 48 kHz Stereo AD/DA Converter
Contents 1 2 3 4 5 Introduction ................................................................. 2 Supplied Contents....................................................... 2 Power Supply .............................................................. 2 Brief Description and Characteristics.......................... 3 Technical Specifications 5.1 Digital Specs ............................................................. 3 5.2 Analog Specs............................................................
4. Brief Description and Characteristics The ADI-1 is a compact 2-channel analog to digital and digital to analog converter in a half rackspace enclosure. AD- and DA-circuit can be used completely independent from each other. Newest 20 bit converters using 128 times oversampling result in more than 100 dB dynamic ratio. We guarantee: this value is not only printed in the brochure, it is available with every sold unit. The servo balanced inputs use Neutrik's well known combi jack (XLR / 1/4" TRS jack).
6. Usage 6.1 Analog to Digital Connect your analog signal source with the ADI's XLR or TRS input jacks. First adjust the knobs fully counter clockwise and try to achieve an optimal input level by toggling the 'operating level' switch. Fine adjusting the input level can easily be done by watching the level meter while turning the knobs. The best input level is present when all LEDs except the Over LEDs are lit at the loudest parts of the signal.
6.2 Digital to Analog The digital input of the ADI-1 works fully self adjusting and needs no setting of bit resolution, format (Professional/Consumer) or sample frequency. Only the active input has to be chosen (optical or cinch). Use the switch 'Select Digital Input' on the back. Receiving signals according to the AES/EBU standard via ADI-1's cinch input requires a cable adapter (available at your local dealer).
7.2 Digital Input The digital input of the ADI-1 accepts all common digital sources as well as SPDIF and AES/EBU. Channel Status (Consumer/Professional) and copy protection will be ignored. G The ADI-1 also ignores all Emphasis information. As Pre- and Deemphasis hasn't been used for years by anyone in the recording industry this should not result in any problem. In case recordings done with Emphasis are played back using the ADI-1 they will sound very crispy, as treble is boosted for more than 6 dB.
9. Controls and Connectors Front panel Analog / Digital Interface ADI-1 INPUT GAIN +10 Hi-Performance 20 Bit A/D - D/A Converter +10 PEAK INPUT LEVEL A/D-CONVERTER D/A-CONVERTER Sample Rate kHz Sample Rate kHz Left 0 +20 0 dB +20 dB Right dBFS Pots for adjusting gain 0 to +20 dB -60 -30 -20 -10 -6 -3 OVR Precise level meter incl. Peak Hold 32 44.1 48 select 32 Select the sample frequency of the AD converter 44.
10. Warranty Before shipping each ADI-1 is tested by RME in a complete test sequence. Using only the best hi-grade components allows us to offer two years of warranty. The copy of the sales receipt or the Bill of Sale is your warranty legitimation. In case of any error or defect please contact your local dealer. The warranty does not cover damage due to abuse, incorrect installation or incorrect handling.
CE This device has been tested and found to comply with the limits of the European Council Directive on the approximation of the laws of the member states relating to electromagnetic compatibility (89/336/EEC) according to EN 55022 class B. FCC Compliance Statement Certified to comply with the limits for a Class B computing device according to subpart J or part 15 of FCC rules. See instructions if interference to radio reception is suspected.
