digital audio weiss engineering ltd. Florastrasse 42, 8610 Uster, Switzerland ) +41 1 940 20 06 2 +41 1 940 22 14 8 http://www.weiss.ch / http://www.weiss-highend.com GAMBIT EQ1-MK2 OPERATING MANUAL Software Version: 0S: 4.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 FRONT PANEL CONTENTS CONTENTS __________________________________________________________________________ 2 What's New For The EQ1-MK2__________________________________________________________ 3 FRONT PANEL _______________________________________________________________________ 4 Front Panel Groups ______________________________________________________________________________ 5 INTRODUCTION _______________________________________________________________
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 FRONT PANEL What's New For The EQ1-MK2 The double sampling Gambit Series EQ1-DS has now been upgraded to the EQ1-MK2. Like the old EQ1-DS, the EQ1-MK2 supports 44.1, 48, 88.2 and 96kHz sampling frequencies, always using either 88.2 or 96kHz for internal processing. This is responsible for the well-renowned sound of the high resolution units and is the difference to the standard sampling EQ1.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 FRONT PANEL FRONT PANEL • • Ž Œ Graph 1: Front Panel Elements Daniel Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster ) +41 1 940 20 06 2 +41 1 940 22 14 8 http://www.weiss.ch * weiss@weiss.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 FRONT PANEL Front Panel Groups The front panel of the EQ1 offers several control and display features. These can be grouped according to Graph 1: Front Panel Elements: Œ - Band Parameters • - Menu Ž - Controls • - Snapshots This manual will explain how to operate the EQ1 according to these groups. The Bypass key is discussed separately in chapter EQ Bypass (p. 14).
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 INTRODUCTION INTRODUCTION Congratulations on purchasing the Weiss Gambit Series EQ1-MK2 Digital Equalizer ! This two channel digital equalizer features seven bands per channel, individually configurable as low cut, high cut, low shelving, high shelving or peaking filter. The two channels can be controlled separately or ganged together at the touch of a button.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 OPERATION OPERATION The following explanations assume that the equalizer is in power-up mode, i.e. no menu is active. If a menu is active, press the “menu” key repeatedly until the status display appears. Use this value to set the optimal gain for a specific session. Reset it for every session. Status Display Key A Over-Hold Key B Whenever an over is encountered, the boxes to the side of the peak-hold values are marked.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 OPERATION Over-samples are defined as exceeding the 24bit integer range. A full scale signal (0dBFS) will not be treated as over. A signal that triggered an over in a previous processor in the audio chain will therefore not trigger an over in the EQ1 (unless boosted). Remote Group Situated adjacent to key C, displays remote control protocol (“MIDI”, “RS 232” or “RS 422”), channel (“1” - “16”) and status (on/ off, displayed with check box).
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 OPERATION Band Parameters What Is A Band? The EQ1 has seven independent bands per channel. A band has the following parameters which can be adjusted separately for each band: 1. Mode To activate a band and see its detailed parameter values, touch any knob in a band (see Graph 1, Π).
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 OPERATION Adjusting Band Parameters Safe To adjust boost, Q/ slope or frequency simply turn the corresponding knob (see Table 1). Pressing the “safe” key will disable all front panel controls (remote control is still possible) and the key will be lit.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 M/S Mode A 2-channel stereo signal can be transformed from the L/R (left/right) domain into the M/S (mid/side) domain and back without any signal degradation. In the M/S domain, the two channels representing the stereo signal contain information on the Mid (mono) and Side content of the stereo signal. Equalizing in the M/S domain can, for example, just affect vocals or instruments centred in the stereo mix.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 Snapshots See Graph 1: Front Panel Elements, •. Snapshots are copies of the EQ1 parameter settings. This allows recalling complete set-ups including all filter parameters and controls settings. Snapshots can be recalled from the front panel or by remote control (e.g. MIDI Program Change). A-B Comparison You can compare two settings by using the two workspaces “A” and “B”. To toggle between the two press the “A-B” key.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 OPERATION Loading Graph 8: Backup Display Select “Create 1” to save the current snapshots to bank 1. Select “Restore 1” to overwrite the current snapshots with bank 1 (ditto for bank 2). A backup will overwrite “safe” snapshots. To load a snapshot dump from sequencer, simply play the dump sequence. The EQ1 will automatically switch into receive mode and display statistics about the snapshots it’s receiving.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 Dither The EQ1 is able to apply shaped dither noise to remove distortion when re-quantizing from 24bit to 16bit or 20bit output word length (see TECHNICAL DATA for dither specifications). To toggle dither on/off, press key D twice. Word Length To set output word length, press key D and choose either 16bit or 20bit.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 OPERATION controller software as is set internally, else no remote control messages will be received. On/ Off To enable or disable remote control, press key C (adjacent to the remote control field). Press it again to toggle the “ON/ OFF”-value. While remote control is off, data will still be sent to the selected port. Also, the MIDI THRU output will always mirror the MIDI IN input data regardless of “ON/ OFF” or protocol status.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA TECHNICAL DATA AES/EBU Input Sampling Frequencies: Maximum Input Wordlength: Channel Status Data: Channel Status Bits forwarded to AES/EBU output: Connector: 44.1 kHz, 48.0 kHz, 88.2 kHz, 96.0 kHz 24 Bits Input accepts professional or consumer format. see table below XLR female AES/EBU Output Sampling Frequencies: Output Wordlength: Connector: 44.1 kHz, 48.0 kHz, 88.2 kHz, 96.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA 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.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA 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.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA Power Mains Voltage: Fuse rating: Power Consumption: 110 / 220 Volts with voltage selector 500 mA slow blow 40VA max Overload Number of consecutive over-samples to cause “over” display: 1..16 settable Filters The filter topology used in the EQ1 is a very low noise filter structure for a state of the art performance. Daniel Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster ) +41 1 940 20 06 2 +41 1 940 22 14 8 http://www.weiss.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA Parameter Table Frequencies (in Hertz): 13.8, 15.4, 17.3, 19.4, 21.8, 24.5, 27.5, 30.9, 34.6, 38.9, 43.7, 49.0, 50.0, 51.9, 55.0, 58.3, 60.0, 61.7, 65.4, 69.3, 73.4, 77.8, 82.4, 87.3, 92.5, 98.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA Overall Gain: All numbers in dB: - , -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.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA Dither If no dither is applied to the digital signal when recording to 16bit or 20bit media (e.g. DAT, CD-R etc), the signal will be truncated, which leads to quantization noise. Graph 9 shows a 24bit sine wave at –85dBFS truncated to 16bit. Graph 9: Sine wave truncated Graph 10 shows the same sine wave, but dithered to 16bit. This eliminates quantization distortion. Graph 10: Sine wave dithered Daniel Weiss Engineering Ltd., Florastr.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA Remote Control Protocol MIDI Implementation Parameter Remote Control All band parameters plus the controls parameters are remote controllable. Each parameter has its corresponding MIDI controller number. According to the different parameters, the controllers are limited in their range. Invalid values are replaced by the maximum allowable values.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 Overall Gain CH2 Control Change 1011 cccc 01000111 ($47) 0vvv vvvv TECHNICAL DATA (cccc) Channel No. (vvvvvvv) New Value: 0 - 127 CH1 / 2 SELECT Control Change 1011 cccc 01001000 ($48) 0vvv vvvv (cccc) Channel No. (vvvvvvv) New Value: 0, 1 EQ Bypass Control Change 1011 cccc 01001001 ($49) 0vvv vvvv (cccc) Channel No. (vvvvvvv) New Value: 0, 1 Set Ganged Mode Control Change 1011 cccc 01001010 ($4A) 0vvv vvvv (cccc) Channel No.
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA Dump request: Byte Value Description Section 1-6 ... ... Header 7 00000010 message = dump request Message Type 8 F7 EOS EOS Byte Value Description Section 1-6 ... ... Header 7 00000011 message = version request Message Type 8 F7 EOS EOS Byte Value Description Section 1-6 ... ...
OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-MK2 TECHNICAL DATA RS-232 The implementation is equal to MIDI. Connector Type: D-SUB female, 9 pin, Pinout: pin 1: n.c. pin 2: RS232 output pin 3: RS232 input pin 4: connected to pins 6, 8 pin 5: ground pin 6: connected to pins 4, 8 pin 7: n.c. pin 8: connected to pins 4, 6 pin 9: n.c. RS-422 The implementation is equal to MIDI. Connector Type: D-SUB female, 9 pin, Pinout: pin 1: remote input + pin 2: remote output + pin 3: n.c.
