Yamaha DEQ5E Operation Manual page 5

* High performance A/D and D/A conversion section which contributes to high class sound quality
A 19-bit conversion process is used in the A/D conversion section, while a 20-bit conversion process is used in the
D/A conversion section. This makes a dynamic range of 110dB or more possible (analog input when EMPHASIS is
on) and contributes to higher sound quality reproduction.
Independent digital delay built in for each channel |
In addition to the equalizer function, a digital delay (used for phase compensation) is independently built into each
channel.
* Built-in hum filter
A hum filter has been incorporated into the unit to eliminate hum and harmonics generated by the power supply
transformer.
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+ 40-program user memory
Up to 40 programs of created equalizer data can be stored in the user memory, when either PEQ or GEQ data is
used.
(Refer to "Memory configuration" on page 8 for details.)
Data stored in memory can be transmitted or received through the RS-485 terminal with the following devices.
€ Another DEQS ог DEQSE (*1)
€ A personal computer which incorporates a RS-485 interface and the DEQS(E) start-up control software.
@ A personal computer with a MIDI interface and DEQS(E) start-up control software. (*2)
*1 To transmit or receive data with another DEQS(E), a DEQS (or equivalent personal computer) is required.
*2 One DEQS5 is required to carry out this method. (Use DOS RS-485 +> MIDI interface function. Refer to page 24
for details.)
4 AES/EBU format digital VO terminals are installed |
In addition to the XLR type analog I/O terminals, which are commonly used in professional applications, digital
T/O terminals for AES/EBU format are also installed.
This kind of digital 1/O terminal makes it easier to combine the unit with systems that transmit audio signals in the
digital range.
e RS-485 control bus
The RS-485 control bus is a bus type communication standard which is used for both transmission and reception.
Employing this communication standard has the following advantages:
€ Expands the system by allowing a maximum of 23 additional DEQS(E)s to be connected in serial, with one
DEQS functioning as a control master. A maximum of 217 DEQS or DEQSE units can be controlled by a
personal computer.
e Wide range installation is enabled, with a maximum of several hundred meters of long distance communication
connections.
e The RS-485 terminal employs a XLR type connector system. Therefore, control data can be transmitted or
received with the cable for XLR type connector systems (*1).
Refer to page 25 explaining "RS-485" for details regarding the communication standard.
*1 Use a cable with impedance characteristics between 90 and 1200 to prevent signal deterioration during RS-485
data transmission (especially for long distance transmissions).