Related Manuals for True PRECISION 8
Summary of Contents for True PRECISION 8
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Page 1: Operation Manual
TRUE TRUE systems PRECISION 8 8-CHANNEL PRECISION MICROPHONE PREAMPLIFIER with M/S decoding and Direct Inputs OPERATION MANUAL Version 1.5... -
Page 2: Safety And Operating Precautions
• Should liquid spill on the unit, immediately disconnect it from the AC power source and return it to your dealer or TRUE Systems for servicing. • This product is designed to operate in an ambient temperature environment not to exceed 50°C (122°F). -
Page 3: Certifications
CERTIFICATIONS Declaration of Conformity – UL Sunrise Engineering and Design Inc. hereby declares the TRUE Systems TRUE Systems PRECISION 8 has the following Underwriters Laboratories® listing: • E212615 – “84GK Professional Audio/Video Equipment” Technical files are maintained at corporate headquarters of Sunrise Engineering and Design Inc., 8175 E. -
Page 4: Table Of Contents
Precision 8 OPERATION MANUAL CONTENTS SAFETY and OPERATING PRECAUTIONS CERTIFICATIONS Owner’s Record Table of Contents INTRODUCTION PRODUCT OVERVIEW UP-AND-RUNNING IN A HURRY INSTALLATION Unpacking and Inspection Mounting Ventilation OPERATION Connections AC Mains Connection Output Cable Connection Microphone Cable Connection A Word About Cables... -
Page 5: Introduction
Dual output connections provide easy interconnection as well as the ability to act as a mic splitter. PRECISION 8 is ideal for location recording due to its compact, 1U rack size, 8- channel format, useful level metering and easy interconnect. The integral M/S decoder provides creative spatial image control and can be particularly useful in attaining an exciting stereo image with minimum effort and microphone re-positioning. -
Page 6: Up-And-Running In A Hurry
2. Set φ φ buttons as appropriate. 3. Adjust DI-1 or DI-2 Gain controls for adequate signal level as indicated on the PRECISION 8 level indicators or on the level indicators of the device to which it is connected. If you’re using the M/S Decoder: 1. -
Page 7: Installation
INSTALLATION Unpacking and Inspection We recommend that you inspect your PRECISION 8 upon unpacking it from the factory shipping carton. In the unlikely event that the unit exhibits any physical damage, DO NOT connect it to the AC mains power, but contact your dealer immediately. -
Page 8: Ventilation
Connections AC Mains Connection: Prior to connecting the AC mains power cord to the Precision 8, verify that the AC mains voltage in your area is nominally 120VAC, 60Hz. This insures that the Precision 8 will operate according to specifications. To provide continued protection against fire, replacement fuses should be only of the types listed on rear panel (T 315mA L, 250V). -
Page 9: Microphone Cable Connection
When connecting an output of the Precision 8 to an unbalanced input, you must connect the negative signal pin (pin 3 of the XLR or “ring” of the TRS) to the shield. Failure to do this will result in audible distortion. -
Page 10: A Word About Cables
2. See the section “More About M-S Decoding” for more information. A Word About Cables..Most users of the Precision 8 have invested much time and money in their selection of microphones and preamplifiers. We recommend that you give some consideration to the microphone, instrument and output cables you select, as well. -
Page 11: Front Panel Controls
PEAK REFERENCE switch. Note that the overload level of the Precision 8 is +31dBu at the output. This level exceeds the input capability of some devices (check manufacturer’s specifications). - Page 12 Precision 8 OPERATION MANUAL can provide accessory Output Attenuators in applications where this is necessary. Please consult the factory for assistance. Signal Present indicator. The SIG indicator activates at approximately -24 dBu. Operating level indicator. The +4 indicator activates when the output level reaches +4 dBu normal operating level.
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Page 13: More About M/S Decoding
OPERATION MANUAL More About M-S Decoding: M-S (Mid-Side) decoding is a particularly creative feature of the Precision 8. While the M-S microphone technique has been around for many years, the opportunity to use it is frequently limited by the need for specialty microphones and/or decoders. - Page 14 This mode can be helpful in live sound and recording applications where the Precision 8 is remotely located from the device(s) to which it is connected. Jumpers inside the unit select this optional mode. If you wish to configure the unit for this mode, proceed as follows: WARNING - ELECTRIC SHOCK HAZARD.
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Page 15: Design Approach
Precision 8 OPERATION MANUAL DESIGN APPROACH Precision 8 features a high-voltage composite architecture with discrete devices plus integrated circuits. The totally balanced, dual servo, dc-coupled design provides exceptional transient response, headroom, imaging and noise performance. Critical devices have been selected on the basis of extensive listening tests as well as engineering tests. -
Page 16: Troubleshooting
Precision 8 OPERATION MANUAL TROUBLESHOOTING Solution Symptom • Check AC power source and cord. No signal output. Main power switch • Check fuses (pull fuse drawer next to power is on, but no LED’s are illuminated. cord inlet) • Check status of phantom power. -
Page 17: Registration And Warranty
REGISTRATION and WARRANTY Don’t forget to register your Precision 8 by filling out the enclosed Registration Card and returning it to us. This allows TRUE Systems to contact you regarding any updates, upgrades or applications information that may become available. -
Page 18: Service And Support Information
Supplementary shipping charges will apply to units returned to addresses outside the continental USA. All units returned to SUNRISE or authorized TRUE systems repair facility must be prepaid, insured and properly packaged. Purchaser must obtain a Return Authorization (RA) number from SUNRISE prior to returning a product.