![]() ![]() Maximum input voltage 1 volt rms Polarizing voltage Internal jumper selects 0 or +48 volts Input impedance 6.81 k with phantom power selected 100 k without phantom Gain 0-60 dB in 4 dB steps, software controlledįrequency response 10 Hz to 21 kHz, +0.5 dB Either inputĬonnector Three-pin XLR, pin 2 "+", pin 3 "-". Microphone input TEF 20 has two microphone-level inputs on the front panel. Source impedance Front panel switch sets source impedance to zero or ![]() Level, max 1 volt rms, +5 millivolts, adjustable with front panel control Input impedance 2 M, dc coupled 1 M, ac coupled Phase response 10 Hz to 21 kHz, +1.0°, dc coupled Either input canĬoupling Front panel switch for ac or dc couplingįrequency response 10 Hz to 21 kHz, +0.2 dB, dc coupled Line input TEF 20 has two line-level inputs on the front panel. Maximum current Source and sink current no more than 24 mA Voltage level TTL compatible, 0 and 5 vdc logic Trigger connector Connector type Four-pin DIN, mates with Switchcraft numbers 09BL4M, Parallel 8-bit standard or bidirectional parallel port (LPT1 or LPT2) Host (HI) Industry standard architecture, requires an HI-PC card installed Platform Processor Memory RAM 64K x 24 bitsĭigital signal processor Motorola DSP56001, running at 27 MHzĭigital-to-analog converter 16 bits, 8 times over-sampledĪnalog-to-digital converter 16 bits, 64 times over-sampled (synchronouslyĭata format IEEE floating point, 24-bit mantissa, 8-bit exponentĬommunication interface Serial RS-232 (19.2 and 57.6 kilobaud) The TEF analyzer and acoustics software make a powerful We will continue to support, repair and calibrate existing TEF20 units, but our efforts are now concentrated on the continuing sales and development of the TEF25 and its' associated software. The TEF25 utilizes state of the art components with the ability to expand and grow to meet the demands of the future. The new TEF25 provides greater range and bandwidth and allows for faster processing through its' computer interface. After a long and successful run, we reluctantly bring production of the TEF20 analyzer to a close. ![]()
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