DP-0206 The digital signal processor shall be from a reputable manufacturer of similar products with proven reliability for a minimum of five years. The unit shall have an internal power supply operating from an AC Mains power source at 50/60 Hz from 100 to 240 VAC with power consumption of 30 W. The unit shall comply with the limits for a Class A computing device pursuant to FCC Part 15, Subject J. The unit shall have a frequency response from 20 to 20k Hz +/-1 dB and dynamic range of 110 dB, A-weighted. Total harmonic distortion shall be less than 0.05% from 20 to 20k Hz band-pass filtered as measured with a 1k Hz sine wave at +4 dBu. Analog-to-digital and digital-to-analog conversion shall be 24 bit with a sampling frequency of 48k Hz and internal 24 bit digital signal processing. The unit shall be of modular design to allow for future expansion. The default input/output (I/O) configuration shall be two analog inputs and six analog outputs (2x6) with two I/O module slots allowing five additional I/O configurations: 2x8, 2x10, 4x6, 4x8 and 6x6. Optional input modules shall allow expansion to up to four additional inputs, depending on the number of outputs. Each input shall be electronically-balanced with a nominal input sensitivity of +4 dBu, maximum +24 dBu, input impedance of 10k ohms, and a four-pole removable terminal block connector. Each input shall have two shield connection points - direct-to-chassis and RFI filter-to-chassis. Optional output modules shall allow expansion to up to four additional outputs, depending on the number of inputs. Each output shall be electronically balanced with a nominal output level of +4 dBu, maximum +24 dBu, capable of driving a minimum load of 600 ohms, and a three-pole removable terminal block connector. Optional input and output modules shall be available to accommodate both analog and digital signals. The analog input and output modules shall have identical electrical characteristics to the main unit. The digital module shall conform to the AES/EBU standard and, via an on-board switch, accept two digital input channels or two digital output channels with BNC-type connectors. The main unit shall accept any combination of two analog or digital modules. The unit shall have one control module slot for an optional control module allowing simultaneous memory selection, output volume control, and output muting, configurable via software. The unit shall be configured with control software compatible with Microsoft Windows 95/98/Me/NT/2000. The PC communication method shall be serial RS-232 format via either front and rear panel nine-pin, D-sub connector or RS-485 format via two paralleled rear panel three-pole removable terminal blocks. Once configured, the unit shall be capable of standalone operation without a PC connection. The unit shall have sixteen onboard memories for recall of stored parameter settings and system configurations, capable of a different configuration in each memory. Memory and firmware storage shall be FLASH-type without requiring an internal backup battery. It shall be possible to update unit firmware via manufacturer-supplied utility update software without disassembling the unit. Memories shall be selected via the unit front panel or dry contact-closure to the optional remote control module. Security settings shall allow the disabling of all front panel controls with multiple levels of software password protection to prevent unauthorized adjustment of system settings or individual processing blocks. Front panel controls shall include Memory Recall, Unit ID, and Up/Down keys. Front panel indicators shall include Input and Output Level, Memory No./Unit ID, and Master. A front panel security cover shall restrict access to Reset, System Lock, RS-232 port and fuse holder. The unit material and finish shall be Front Panel: aluminum, hair-line finish, black; Case: pre-coated steel plate, black, 30% glossy. The unit dimensions shall be 19” x 3.5” x 12.8” (480 x 88.4 x 325.2 mm) and the weight shall be 10.3 lbs. (4.65 kg). Each input (pre-matrix/router) shall have the following characteristics: Level control providing up to +12 dB of gain with polarity invert and mute. Compressor/limiter with adjustable threshold, ratio, attack time, release time, and synch with configurable ratio to allow peak limiting. A noise gate with adjustable threshold, attack time and release time. Twelve bands of filtering with available types as follows: All-Pass Filter: 20 - 20k Hz, adjustable Q: 0.267 - 69.249; CD Horn Equalizer: 20k Hz, adjustable from 0 to ±18 dB; Graphic Equalizer: 1/3 octave band, 31 center frequencies, 10 adjustable filters,±12 dB, adjustable Q: 0.267 - 69.249; High-Pass Filter, 20 - 20k Hz, -12 dB/oct., -6 dB/oct.; Low-Pass Filter, from 20 - 20k Hz, -12 dB/oct., -6 dB/oct.; High Frequency Shelving Boost or Cut: 6 - 20k Hz, ±12 dB; Low Frequency Shelving Boost or Cut: 20 - 500 Hz, ±12 dB; Notch Filter: 20 - 20k Hz, adjustable Q: 8.561 - 69.249; Parametric Filter: 20 - 20k Hz, 12 adjustable filters,±12 dB, adjustable Q: 0.267 - 69.249. The unit shall include a built-in matrix/router to allow any combination of input-to-output signal routing. Each crosspoint shall have individual on/off, independent level control and polarity inversion. Each output (post-matrix/router) shall have the following characteristics: Crossover / Channel Divider with available types as follows: Bessel (-12/-18/-24 dB/Oct.), Butterworth (-12/- 18/-24 dB/Oct.), Linkwitz-Riley (-12/-24 dB/Oct.) and Variable Q (-12/-18/-24 dB/Oct.). Level: +12 to -12 dB, with polarity invert/normal. Each crossover channel shall have driver alignment delay: 0 - 682.646 ms with adjustable temperature calibration. Up to twelve bands of filtering with available types as described above. Channels configured as high or low-pass crossover channels shall each have ten bands available, band pass (mid-range) crossover channels shall have eight bands available. Compressor/limiter and noise gate, identical to the input type described above. Output delay: 0 - 682.646 ms with adjustable temperature calibration. An analog output attenuator, VCA-type and relay-controlled output mute. The digital signal processor shall be TOA model DP-0206. The dual analog input module shall be TOA model DQ-A01. The dual analog output module shall be TOA model DQ-A02. The dual digital input/output module shall be TOA model DQ-D01. The remote control module shall be TOA model DQ-C01.