roger schult W2393 TiltBaxxEQ User manual

roger schult
german audio lab
W2393 TiltBaxxEQ
3 Band Filter-Combination
Baxandall / Ni eau-Filter
Operating Manual
Quick Guide
W2393 TiltBaxxEQ Operating Manual for api ® 500 system Version 0 .2022
roger schult D 50374 Erftstadt Peter-May-Str. 104
-1 -

Table of Contents
Page
2 Table of Contents
3 Introduction
Safety Notices
4 Product Details
Function, functional components and their effect
Functional components
5 Options to expand some functions of the W2393 TiltBaxxEQ
Installation
Installing the W2393 module in an api ® 500 system
6 Specifications
7 Box contents and compatibility
Recycling
8 Manufacturer, contact and support
api ® is a registered trademark of AUTOMATED PROCESSES INC., NEW YORK, USA
-2 -

Dear customer, we sincerely thank you for purchasing our product.
Our W2393 TiltBaxxEQ module for the api®500 system was built to ensure and exceed the highest
manufacturing standards possible. We are adhering to all European and national guidelines currently in
effect. The EMV compatibility has been certified and the appropriate records are available in our office.
Every unit which leaves our factory is in a perfect working condition and meets all designed factory
specifications.
We have written this operating manual as a reference for you. It contains important notes for the correct
operation and the handling of your new product. In order to maintain the factory specs and guarantee a
safe operation in the future, we advise that you read the included operating manual as well as any further
safety documents. (see below)
If you are passing the unit over to third parties, please make them aware of these documents.
Any use outside of the applications described in this manual may cause damage to the product. The
product must not be altered or modified. Any improper usage may cause multiple hazards such as
electrical shorts, fire, electric shocks, and other hazards.
The enclosed safety and hazard notices refer to the installation and operation in an api®500 system.
There may be relevant guidelines and regulations that affect the operation, even if they do not apply to
our product directly. The installation and operation should therefore be carried out by trained personnel
only.
Operation of the unit in adverse environmental conditions - such as moisture and / or excessive
humidity, dust, gases, vapors or solvents - is not permitted.
Please contact our technical support team if you have any technical questions about this product. You can
find the contact details in the appendix of this manual
-3 -

Function, functional components and their effect
The W23 3 TiltBaxxEQ is a combination of a tilt filter (level filter) and a Baxandall tone control.
The tilt filter (sound balance) determines the turning point (tilt frequency) of the low and high frequencies
around a switchable center frequency (500 Hz, 700 Hz, 1100 Hz). Simultaneously, the level components of
the high and low frequencies are changed in opposite directions about up to 5 dB around a turning point.
The shift in the tone balance is symbolically represented by the colored button. The red mark left
represents the low-frequency range and the blue mark on the right represents the high-frequency range.
When the red and blue line forms a horizontal line, the TiltEQ is in neutral position and has no effect on
the frequency distribution.When rotated clockwise, the proportions of low frequencies increase and the
high frequency decreases. The effect is reversed by turning the TiltEQ in the opposite direction, then the
low-frequency components become smaller and the high-frequency components increase. This change
also takes influence on the energy of the audio signal and can be compensated by adjusting the gain-pot
(gain).
The Baxandall tone control consists of two faders that separately change the level components for the
high frequency “HF” and low frequency “LF”. The frequency of "HF" (2 kHz, 5 kHz) and "LF" ( 0 Hz, 110 Hz)
can be preselected via toggle switch, too. In center position, the respective filter is deactivated (byp.). This
bypass-function is used to quickly check the filter´s effectiveness. Due to the historical circuit design, the
two EQs influence each other and are part of the circuit.
An illuminated push button ("on") deactivates the entire filter and allows the user to check all set filter
effects very quickly. Technically, this is a hardware bypass, using a relay to switch all the electronics out of
the signal path.
Functional components
Tilt filter
• "tilt angle" - potentiometer with 5 dB control range
• 3 turning points at frequencies 500 Hz, 700 Hz or 1100 Hz
• "gain" - potentiometer with +/- 5 dB control range
Baxandall filter
• High-frequency "HF" adjustable via fader +/- 12 dB
• Switchable frequency range for "HF" band 2 kHz or 5 kHz
• Low-frequency "LF" adjustable by means of fader +/- 12 dB
• Switchable frequency range for low band 0 Hz or 110 Hz
• Separate bypass "byp." for "HF" and "LF" of the Baxandall filter
• Bypass "on" for the entire module
-4 -

Options to expand some functions of the W23 3 TiltBaxxEQ
Brightness of the "on" pushbutton switch
The brightness of the "on" button LED can be adjusted in three stages using jumper K6 and K11. These
jumpers (bridges) can be removed by gently pulling upwards. If both jumpers are plugged, the LED lights
up brightly, if only jumper K6 is plugged, the LED lights up with medium luminosity and if only jumper
K11 is plugged in, the LED lights up with low luminosity.
HP A first-order high-pass can be activated to limit impact noise with a filter effect of -3 dB at 3 Hz by
pulling jumper K4.
(Detailed information on these functions is available on our homepage under downloads
https://www.rogerschult.com/downloads.php ).
Installation in an api ® 500 system
Instructions for installing the W23 3 TiltBaxxEQ filter module
Please note that electric potential differences and electrostatic discharges (ESD) can destroy your api ®
500 system and the W2393 TiltBaxxEQ module. Please make sure to discharge any potential electrostatic
charges by touching a plumbing pipe, heating pipe or any other piece of metal connected to earth before
installing the W2393 TiltBaxxEQ module. Neutral electric potential is a prerequisite to any installation or
reconfiguration of electronics modules and their interconnections.
Turn off your api ® 500 rack or console and all connected devices. Remove any blank panels that might
cover the slot you have chosen for installation of the module.
Center the module between the two threaded mounting holes and evenly insert the module into the free
slot without applying brute force. Secure the W2393 module with both screws. The module is ready for
operation once the appropriate connections in the rear of the api ® box have been taken care of.
-5 -

Specifications
Tentati e spec sheet, 08/2022
Low band EQ, adjustable frequency 0 Hz / filter bypass / 110 Hz via switch
Gain, continously variable +/- 12 dB range via fader
Ti-EQ / Niveau Filter
Gain, continously variable +/- 5 dB range via rotary control
Frequency, 3-position switch 500 Hz / 700 Hz / 1100 Hz
High band EQ, adjustable frequency 2.0 kHz / filter bypass / 5.0 kHz
Gain, continously variable +/- 12 dB range via fader
on - switch enable / disable filter module
hard-bypass
Input - electronically balanced
Reference input level +6 dBu
Maximum input level +22 dBu
Input impedance 10 kOhm
Output - electronically balanced
Reference output level +6 dBu
Maximum output level +24 dBu / (0.002% THD+N)
Output impedance 40 Ohm
Gain at linear setting 0 dB at 1 kHz (+/- 0.2 dB)
Signal-to-noise ratio (UWTD) dB
Signal-to-noise ratio (WTD) 95 dB
Harmonic distortion THD+N / 0 dBu 0.0026%
THD+N / 6 dBu 0.0015%
Frequency range 20 Hz - 40 kHz (+/- 0.1 dB)
Delay time of hard bypass relais max. 3 ms
Power supply +/- 16 V via api ® - System
+ max. 90 mA / -16V max. 40 mA
Module dimensions 115 mm x 172 mm (HxT)
Faceplate dimensions 19”/ 3 RU, 1.5“ x 5.25“ (width x height)
Faceplate finish aluminium, black anodized
Weight 0.305 kg
-6 -

Box contents and compatibility
Box contents
- W2393 TiltBaxxEQ module in api ® 500 system
- Quick start guide in German
- Quick start guide in English
Compatibility
The compatibility certification records for this product are available upon request from the manufacturer.
As all Roger Schult products, the W2393 is hand-crafted and precision-engineered in Germany.
Recycling
Please stay eco-friendly and dispose of all defective and obsolete devices at a certified
collection facility according to local laws and regulations.
The crossed out wheeled bin label that can be found on your product indicates that this product should
not be disposed of via the normal household waste stream. To prevent possible harm to the environment
or human health please separate this product from other waste streams to ensure that it can be recycled
in an environmentally sound manner. For more details on available collection facilities please contact your
local movement Office or the retailer where you purchased this product.
-7 -

Manufacturer
roger schult
german audio lab
D 50374 Erftstadt
Peter-May-Strasse 104
www.rogerschult.com
[email protected]
W2393 TiltBaxxEQ
- -