The Panasonic SV-3700 is a Digital Audio Tape deck designed for professional applications, incorporating significant advancements in analogue-to-digital converters, digital-to-analogue converters, transport accuracy and reliability, and control and interface technology.
It utilises one bit A-D converters, which exhibit superior performance and linearity compared to conventional successive approximation A-D converters. These high-performance one-bit ADCs greatly reduce both signal and zero cross distortion, resulting in cleaner and clearer audio at low and high levels. This translates subjectively to increased accuracy in spectral balance, ambience, and the space around instruments, which are essential for achieving natural and “correct” sound.
The transport of the Panasonic SV-3700 is built on a massive die-cast chassis that ensures stability and accurate dimensional tolerance. Built almost entirely by robots for consistency and rollability. this proprietary transport and head assembly provides superior performance compared Io traditional head assembled bent metal construction transports.
Considerable investments were made to improve the price/performance/reliability of the Panasonic SV-3700 over that of the highly successful Panasonic SV-3500. Development of VLSICs specifically for the Panasonic DAT reduced the number of components and PC boards to a minimum – One main PC board carries all of the functions that previously required four. The consequent reduction in components. manufacturing stages, and adjustments markedly improves performance and reliability.
High-resolution DAC systems are utilised to convert digital data to audio information, ensuring optimum replay quality. The Panasonic SV-3700 incorporates four high-precision DACs, with two per channel, effectively removing zero cross distortion and improving linearity to enhance the overall quality of the audio replay.
Features
- Front panel shuttle wheel
- 4 stage, 1-bit Delta-Sigma A/D converters
- 18-bit equivalent D/A converters
- Program, absolute and time-remain display
- 44.1/ 48 kHz selectable sampling rates
- Pushbutton fade-in and fade-out
- Balanced inputs and outputs
Reel World Engineering
Tho Panasonic SV-3700 has instrumentation quality input and output circuitry designed with an understanding of real world- cabling, grounding, and RF interference problems and how these do, grade audio quality. One of the traditionally weak areas in pro audio has been interface technology. All too often basically good equipment is marred by bad design of input and output circuits.
Unstable output stages introduce severe coloration and inputs that hum. buzz and perform as CB and RF tuners and cause mushy bass or coloured highs through grounding and capacitance crosstalk. Utilising experience gained in the development of top-quality studio and touring sound equipment, our engineers have designed input and output circuitry that can interlace with the widest variety of devices in all applications while maintaining the utmost quality and integrity of the signal.
Industry Standard Digital IO
AES/EBU Professional Format and IEC 958 Consumer Format Digital Inputs and Output provide direct interfacing with compact disc players. digital audio workstations. and other components in a recording studio or production facility.
A comprehensive display Includes program numbers, Absolute Time, Program Time, Remaining Time and Table of Contents. TOC displays Total Recorded Time and Total PNO count for commercial prerecorded DAT tapes.
Sampling rates are selectable in record mode from the analogue inputs at 44.1 kHz and 48kHz. Recording from the digital inputs, the Panasonic SV-3700 automatically docks Io incoming frequencies of 32kHz, 44.1kHz or 48kHz.
Controllability
Tho infrared Wireless Remote Controller enables remote operation of all front panel functions. The Shuttle Wheel has two variable speed ranges, allowing program material to be auditioned at slow or high speed in forward and reverse.
A high-speed transport with up to 400 times Fast Forward/Rewind and Search speeds ensures access to any point on a two-hour DAT tape in approximately 27 seconds. A new straight line DAT feed system simplifies loading for low maintenance. The Panasonic SV-3700 will display the Serial Copy Management System (SCMS) status during recording and playback. Rear panel DIP can be used Io preset SCMS ID 6 status during a recording via the AES/EBU Professional Digital Inputs.
Error correction rates can be displayed during replay by simultaneously pressing the front panel Counter Mode, Reset and Pause buttons, then pressing the Mode switch a second time. The time display window now shows the combined error rate for the A and B heads. Pressing Counter Mode again displays the error rate for the A head alone. Normal mode is restored by pressing the Reset again.
Ramped Record mute and unmute with three second fade in and five second fade out provides automatic level changes at the start and end of a recording.
