Weiss engineers placed top priority on making the front panel easy to use, on achieving the highest possible audio quality and on making the unit affordable to a broad spectrum of professional users.
From these basic design goals came an impressive list of features:

-Seven identical parametric bands. All seven bands cover the entire audio frequency range. Each band has Boost/Cut, Frequency and Q/Slope knobs. Each band operates in any of the following modes: High shelving, low shelving, peaking, high cut, low cut, bypass.
-One parameter per knob operation. Seven sets of controls for seven operating bands. Knobs are touch sensitive. LCD display shows detailed parameters of the touched band.
-Large, backlit Liquid Crystal Display which shows the overall frequency response (calculated in real time) and the detailed parameter values in dB, Hz and Q.
-Designed with expansion capability by downloading new coefficient sets from a PC or by exchanging a hardware module.
-A/B compare memory, snapshot event list memory, RS232/422 and MIDI control, Bypass, Gain adjust
-Digital input / output in AES3 standard digital audio format on XLR connectors.
-Dedicated switches for the following functions:
-Overall Bypass,
-A - B memory comparison,
-CH1 only, CH2 only, CH1/CH2 ganged
-Snapshot Store, Snapshot Recall
-Controls Lock(safe mode)
-Copy between channels and between A and B
-Four soft-keys adjacent to the LCD display work in conjunction with knobs and switches to select certain functions.
-LCD Menus for less often used functions, include Snapshot reset, -copy, -upload, -download,Vertical
-Display range (+-6dB, +-12dB, +-18dB), display offset (0dB line moving), display auto rangingD
-Remote protocol (MIDI, RS-422, RS-232, Baud Rate, MIDI Channel
-LEDs display the following functions: Status display for each band (peak / shelve / cut // high / low // off). Over status CH1, over status CH

EQ1 Technical Data:
AES/EBU Input:
Sampling Frequencies: 44.1 kHz or 48.0 kHz
Maximum Input Wordlength: 24 Bits
Channel Status Data: Input accepts professional or consumer format.
Channel Status Bits
forwarded to AES/EBU output: see table below
Connector: XLR female

AES/EBU Output:
Sampling Frequencies: 44.1 kHz or 48.0 kHz
Output Wordlength: 24 Bits
Connector: XLR male

AES/EBU Channel Status Data:
The EQ1 allows to convert the incoming Channel Status Data as follows:
- From Consumer to Professional
- From Professional to Consumer
- Transparent mode, i.e. Channel Status Data is fed forward to the output without any conversion (one exception, see below)
The following tables describe how the Channel Status Data bits are generated in the various conversion modes.

Output selected: Consumer format.
Input: Consumer format.
Output: All bits fed forward (transparent), except for:
Byte 1: Bits 0..6: 0000000 (category code general)
Bit 7: 1 (original)

Input: Professional format.
Output:
Byte 0: Bit 0: 0 (consumer)
Bit 1: 0 (audio)
Bit 2: 1 (copy allowed)
Bits 3,4: Preemphasis according to input
Bit 5: 0 (2 channel mode)
Bits 6,7: 00 (Mode 0)
Byte 1: Bits 0..6: 0000000 (category code general)
Bit 7: 1 (original)
Byte 2: Bits 0,1,2,3: Sampling Frequency according to input
Bits 4,5: 00 (accuaracy grade II)
Bits 6,7: 00
Bytes 3..23: reserved bytes

Output selected: Professional format.
Input: Professional format.
Output: All bits fed forward (transparent), except for:
Byte 2: Bits 0,1,2: 001 (max. sample length= 24bit)
Bits 3,4,5: 101 (24 bit word length)
Bits 6,7: 00

Input: Consumer format.
Output:
Byte 0: Bit 0: 1 (professional)
Bit 1: 0 (audio)
Bits 2,3,4: Preemphasis according to input
Bit 5: 0 (source fs locked)
Bits 6,7: Sampling Frequency according to input
Byte 1: Bits 0,1,2,3: 0001 (two channel mode)
Bits 4,5,6,7: 0000 (no user bit encoding)
Byte 2: Bits 0,1,2: 001 (max. sample length= 24bit)
Bits 3,4,5: 101 (24 bit word length)
Bits 6,7: 00
Bytes 3..12: All bits 0
Byte 23: CRCC byte

Output selected: Transparent.
Input: Any format.
Output: All bits fed forward (transparent), except if EQ not bypassed:
Byte 2: Bits 0,1,2: 001 (max. sample length= 24bit)
Bits 3,4,5: 101 (24 bit word length)
Bits 6,7: 00

Power:
Mains Voltage: 110 / 220 Volts with voltage selector
Fuse rating: 500 mA slow blow
Power Consumption: 40VA max

Overload:
Number of consecutive over-samples to cause "over" display: 1..16 settable
Parameter Table
All types of filters (cut, shelving and peaking) have the same parameter ranges.

Frequencies:
Frequencies in Hertz:
16, 17.5, 20, 22.1, 25, 27.5, 31.5, 35, 40, 44, 50, 55, 63, 70, 80, 88, 100, 111, 125, 140, 160, 176, 200, 222, 250, 280, 315, 353, 400, 444, 500, 560, 630, 706, 800, 888, 1.00k, 1.12k, 1.25k, 1.40k, 1.60k, 1.78k, 2.00k, 2.24k, 2.50k, 2.80k, 3.15k, 3.56k, 4.00k, 4.48k, 5.00k, 5.60k, 6.30k, 7.20k, 8.00k, 9.00k, 10.0k, 11.2k, 12.5k, 14.0k, 16.0k, 18.0k, 20.0k

Boost/Cuts, applicable to shelving and peaking filters:
All numbers in dB, can be either boost or cut:
0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 11.0, 12.0, 14.0, 16.0, 18.0

Q, applicable to peaking filters:
0.4, 0.8, 1.3, 2.5, 4.3, 8.6

Slope, applicable to cut filters:
6dB/ octave, 12dB/ octave

Overall Gain:
All numbers in dB:
-ì , -92.0, -89.0, -86.0, -83.0, -80.0, -77.0, -74.0, -71.0, -68.0, -65.0, -62.0, -59.0, -56.0, -53.0, -50.0, -48.0, -46.0, -44.0, -42.0, -40.0, -39.0, -38.0, -37.0, -36.0, -35.0, -34.0, -33.0, -32.0, -30.0, -29.5, -29.0, -28.5, -28.0, -27.5, -27.0, -26.5, -26.0, -25.5, -25.0, -24.5, -24.0, -23.5, -23.0, -22.5, -22.0, -21.5, -21.0, -20.5, -20.0, -19.5, -19.0, -18.5, -18.0, -17.5, -17.0, -16.5, -16.0, -15.5, -15.0, -14.5, -14.0, -13.5, -13.0, -12.5, -12.0, -11.5, -11.0, -10.5, -10.0, -9.5, -9.0, -8.5, -8.0, -7.5, -7.0, -6.5, -6.0, -5.8, -5.6, -5.4, -5.2, -5.0, -4.8, -4.6, -4.4, -4.2, -4.0, -3.8, -3.6, -3.4, -3.2, -3.0, -2.8, -2.6, -2.4, -2.2, -2.0, -1.8, -1.6, -1.4, -1.2, -1.0, -0.8, -0.6, -0.4, -0.2, 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0