background image

z-q2 operations manual

Introduction

Z-Systems model z-q2 6-band digital equalizer is based on the highly-

successful model z-q1. For those who are familiar with the z-q1, here is a list of the 
extensive improvements we’ve put into the z-q2:

Complete ergonomic upgrade. The z-q2 is much easier and more fun to use. 

The front panel has been simplified, keystroke and hand movement greatly 
reduced, especially the process of saving and recalling memories. All screens are 
now non-modal, which in plain English means that you can navigate instantly from 
any menu to any other. The system remembers the last mode of any button that you 
used. Left and Right channel equalization can now be separately and easily 
adjusted and inspected. The one-line display has some added features keeping it 
simple, yet powerful.

POW-R

TM

 dither. The reknowned dither from the POW-R consortium is now 

included. POW-R dither is so transparent that it yields nearly 20-bit 
psychoacoustic performance from a 16-bit master with virtually no penalty in tonal 
balance, depth, space or width.

MIDI control. Memory recall can now be recalled by an external MIDI 

controller, and the entire state of the memories can be stored or recalled with 
Sysex.

M/S. A bit-transparent M/S encoder and/or decoder can be inserted in the 

signal path.

Range of gains has been optimized for very fine 0.1 dB equalization near 0 

dB, and more coarse as the gains become extreme.

Range of frequencies has been extended to 20 kHz for that ultimate “air 

control”.

Range of Qs now includes a fine range around 1.0, to include the most 

common and musically useful Qs.

Power-Down state. The z-q2 writes its current state into memory whenever 

power is lost.

•And all the original low-distortion Zelniker equalization algorithms are still 

here!

z-q2 Operations Manual version 1.0 1/2301 Page 1

Summary of Contents for z-q2

Page 1: ...M dither The reknowned dither from the POW R consortium is now included POW R dither is so transparent that it yields nearly 20 bit psychoacoustic performance from a 16 bit master with virtually no pe...

Page 2: ...last two POW R dither options are only available at 44 1 or 48 kHz The sample rate cannot be altered as the system is always slaved to the incoming rate Using the dither and wordlength settings When t...

Page 3: ...the gains and equalizer levels are set to 0 dB In the 24 bits setting with everything neutralized the z q2 is bit transparent will pass all incoming AES EBU signals without data alteration In the 20...

Page 4: ...memories have been sent to the sequencer the display returns to no Midi Program Change Connect the output of a MIDI sequencer to the MIDI in jack Any time the Z Sys sees a program change whose value i...

Page 5: ...z q2 and set the mode to MS Y Y the left channel gain control becomes the M gain or center gain and the right channel gain control becomes the S gain or side gain These controls can manipulate the wid...

Page 6: ...ntly loaded the caret and the letter after load disappear indicating that you have to load again if you want this new memory Of course the previously loaded memory is still in the equalizer until the...

Page 7: ...ok like S 00 0 56 Hz Rotate the left knob to change the gain of the low frequency shelving equalizer Rotate the middle knob to change the frequency below which the shelving action takes place This fre...

Page 8: ...tly as above for stereo ganged or individual left or right equalization The frequency knob controls the frequency above which action occurs Parametrics Press any of the remaining four buttons to see S...

Page 9: ...135 dB Processor type TMS320C31 32 bit floating point DSP Processor performance 60 MFlops Digital audio demodulator modulator Crystal Semiconductor Sample rates supported 32 kHz 44 1 kHz 48 kHz 88 2...

Page 10: ...d modifications were designed as solutions to technical problems encountered by our end users Our enthusiastic customers help spread the good word about Z Systems We would like you to be one of them Z...

Reviews: