True Systems Precision 8i Mic Pre/DI  From True Systems

8 clean preamps, multiple outputs, and 1 RU space! Includes international power supply.

True Systems


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Manufacturer's Description from True Systems

The Precision 8 is designed to provide the detailed, transparent sonic performance necessary for the highest quality direct tracking and live sound applications. It includes a unique combination of features which make it useful as a complete input system for MDM's, HDR's, and DAW's. Two sonically accurate discrete FET instrument inputs (DI's) are available for recording or live sound applications in which realistic, unaffected sound quality is desired. The 5-segment peak-hold level metering with selectable peak reference allows rapid optimization of program levels between the PRECISION 8 and devices to which it is interfaced.

PRECISION 8 is ideal for location recording due to its 8-channel single rack unit format, smooth continuous gain controls, useful level metering, and easy interconnect. The integral MS decoder provides creative spatial image control that is particularly useful in attaining an exciting stereo image with minimum effort and microphone repositioning.

With the emphasis shifting to digital audio platforms and modular configurations, software "plug-ins" are replacing many outboard signal processors. Other than the microphone itself, the microphone preamplifier is the most significant analog device remaining in the signal chain.

PRECISION 8, with its sonically pure design, simple-to-use features, and unparalleled cost/performance value, is the ultimate solution for state-of-the-art digital recording studios and project studios.


• Eight highly transparent solid state microphone preamps in a 1 unit rack configuration

• Challenges the recognized leaders in sonic accuracy and performance

• Built-in M-S (Mid-Side) decoding for creative spatial image control

• Active, high-impedance instrument inputs ("DI's") selectable on two channels

• 5-segment level indicators with peak-hold feature and selectable peak reference

• Smooth continuous gain controls

• Easy interface to MDM's, HDR's, DAW's, or consoles

• Dual DB25/TRS outputs for flexible interconnection

• Elegant, sturdy physical design

• Exceptional cost per channel value


PRECISION 8 uses a high-voltage composite architecture with discrete devices plus integrated circuits. It offers very low noise and distortion as well as high headroom. The totally balanced dual-servo design eliminates nearly all capacitors in the audio path and is DC-coupled at the output. All of this results in a very detailed and transparent sound quality which challenges even the most esoteric microphone preamps.

True Systems

About Manufacturer

TRUE Systems is a product line of Sunrise Engineering and Design Inc., which is involved with consulting, design, and manufacture of electronic equipment used in professional audio production (recording and broadcast studios, concert halls, remote recording and live sound, etc.). The company has, over the last five years, designed or consulted on many studio and product concerns including the design of major, nationally known products for TimeLine Vista, Tascam, and our own brand name, TRUE Systems. TRUE Systems products are made in Tucson, Arizona.

Our customers include Sony Electronics, Sony Classical Recording, Lincoln Center, the Bill Gates residence, numerous professional and semi-professional project recording studios and remote broadcast production companies. Skywalker Studios, Warner Bros., and numerous other major film/video sound post-production companies use the products for which we have been design consultants.

The principal of Sunrise Engineering and Design, Tim Spencer, has thirty years of diverse experience in design, development, integration and manufacturing of complex hardware and software systems. While employed at Burr Brown, he was responsible for design and development of various amplifier products as well as analog-to-digital and digital-to-analog conversion devices - and Burr Brown's very first power operational amplifiers. While employed by Hughes Missile Systems Company, he worked in various engineering and management positions involving design and implementation of automated production test systems, manufacturing technology, product quality, and management information systems.


Gain (microphone): +16 to +64 dB

Gain (direct input): -4 to +44 dB

Frequency Response (gain=40 dB): 1.5 Hz to 500 kHz (+0/-3 dB)

Maximum Output Level: +31 dBu

Maximum Input Level: +15 dBu

Input Impedance (microphone): 5.5 kOhms

Input Impedance (direct input): 2 Mohms

Noise (Rs=0 Ohms): -132 dB e.i.n.

Slew Rate: > 40 V/uS

CMRR (CMV=+10 dBu): 85 dB

Crosstalk: -130 dB

THD (+26 dBu, 100 kOhm): .0008%

Power Requirements: 120VAC, 60 Hz, 44 Watts

Dimensions (chassis): W=17.4 in. (442 mm) D =13.4 in. (341 mm) H =1.74 in. (44.2mm)

Knob extension: 1 in. (25.4 mm)

Weight: 14.5 lbs. (6.6 kg)

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