2
3
Connections, Buttons and LEDs
Balanced/Unbalanced Analog Audio Inputs and Outputs
›
Each output and input features one analog audio connector on 6-pin phoenix connector for
balanced or unbalanced audio
›
Pin assignment for Analog Audio connections:
»
Left + is Pin 1; Left Ground is Pin 2; Left - is Pin 3
»
Right + is Pin 4; Right Ground is Pin 5; Right - is Pin 6
›
Unbalanced audio is the default type for each input, and should be connected using the positive
(+) and ground pins.
›
Each input and accepts/drives audio signals up to 2VRMS with a sampling rate of 48KHz
›
Each output features an assortment of DSP controls including Volume, Muting, 3-band EQ, and
Lip-sync delay.
›
There are no down/up conversion capabilities. For example, a 2ch analog audio input cannot be
converted to 5.1 surround.
›
Microphone inputs are not directly supported. To integrate microphones, please use external
powered mixer.
›
Each input may be individually set so that analog is the associated type.
»
If the associated input type is set to analog, the output selecting the source will output the
analog feed on both the analog and PCM output connectors.
»
The default association type for each input is “both”:
»
Analog In to Analog Out
»
PCM In to PCM Out
PCM Digital Audio Inputs and Outputs
›
Each output and input channel features one digital audio on an RCA connector
›
Compatible with SPDIF format IEC 60958 supporting 2CH PCM, Dolby 5.1ch, DTS 6.1ch
›
Compatible with sampling rates up to 192KHz
›
Each input may be individually set so that analog is the associated type.
»
If the associated input type is set to analog, the output selecting the source will output the
analog feed on both the analog and PCM output connectors.
»
The default association type for each input is “both”:
»
Analog In to Analog Out
»
PCM In to PCM Out
›
There are no DSP features on the digital audio inputs or outputs. However, muting settings do
apply.
›
There are no down/up conversion capabilities:
Audio Input
Signal Format
Audio L/R
Output
Digital Audio
Output
2CH PCM
Pass-through
Pass-through
Multi-Channel PCM
MUTE
MUTE
DOLBY/DTS
MUTE
Pass-through
HD Audio
MUTE
MUTE
Unit Control Ports
›
MAIN Control Port
»
6-Pin Terminal Block for IR and RS-232
»
RS-232 and TCP/IP commands may be found in the
RS-232 & TCP/IP Commands
section
»
Pin out:
»
Pin 1 = IR Signal
»
Pin 2 = IR Ground
»
Pin 3 = RS-232 Tx Data
»
Pin 4 = RS-232 Ground
»
Pin 5 = RS-232Rx Data
»
Pin 6 = Ground (optional)
›
TCP/IP Control Port
»
Default static IP address is 192.168.1.239
»
Connect an Ethernet cable from the KD-MAX8x8 to a network router or connect a straight-
through cable directly from a PC
›
Firmware Mode Switch
»
Should remain in Operation setting unless instructed by Key Digital technical support
»
If changing position of switch, do so only with unit not powered
»
Not every firmware update requires the switch to be set to the F/W Load position
»
If set to F/W Load, all front LEDs will be illuminated, indicating that
unit is in bootloader mode and awaiting a firmware load.
›
Micro USB (front panel)
»
Typically used for unit configuration, control, and firmware updates
»
It is most commonly used with KD-Wizard
®
software downloaded at
www.keydigital.com
KD-MAX8x8 Manual.indd 2-3
12/23/17 2:18 AM
