Klein-hummel K8-MI8 User Manual

K8-MI8

8-CHANNEL ANALOG MICROPHONE INPUT TO K8 BUS

KEY FEATURES TECHNICAL SPECIFICATIONS

preliminary

8 Microphone analog inputs
Stackable to max of 16 inputs
Digital audio over Cat5e/6
Drives (2) each 200 meter K8 cabling legs
Extremely low latency
Phantom power
Sensitivity configuration
Remote preamp control
Rack and under table mounting

PRODUCT DESCRIPTION

The K8 digital audio distribution system transports
professional quality audio across a facility over standard
category 5 cable. It can be used for simple point-to point
connections or can form a distribution backbone
for sending up to 16 audio channels to multiple remote
locations.
The K8-MI8 offers the ability to take 8 analog microphone
audio
signals and encode them onto the K8 system. Up to a
total of two K8-MI8 units may be stacked to provide a
total capacity of 16 audio channels on a single category
5 cable.
The system is fast to implement and requires no
configuration. It is easily connected together with up
to 200 meter lengths of category 5 cable. For advanced
applications the entire system may be controlled and
monitored from a single connection via RS-485 or
optionally with Ethernet or USB adaptors.
The K8 bus has a total analog in to analog out latency
of 0.5ms making it useable in live performance settings as
well as conference facilities and convention centers.

Frequency Response 20 Hz – 22 kHz

Signal to Noise Ratio >100dB(A)

Input Balanced analog audio, XLR-1/4” female

Input Level tba

Maximum input +22 dBu

Output Two K8 bus outputs, each drives 200

Control RS-485, DB-9 female connector, open

Optional USB adaptor (K8-485)

Termination Switch 4-position DIP

Digital Audio Format 48 kHz sampling rate, 24 bit, proprietary

Latency ½ millisecond worst case, analog in to

Power Requirements 100 – 240 Volt (+/-10%, 50-60Hz, 15

Front Panel Indicators Power, signal present, signal nominal

Front panel controls gain level adjustable (5 steps)

Rear Panel Indicators OK, Wink

Weight 7 lbs / 3,2kg

Dimensions EIA Standard 19” Rackmount 1.75” high,

Operating Temperature
Range

connector x 8

meters

published protocol 38400 Baud, 8 Data, 1
Stop, No Parity

analog out

Watts, IEC power cord connector

level, signal peak level

Phantom power (switchable)
High-Pass filter (switchable)

8 “ deep

0…70°C

K8-MI8

8-CHANNEL ANALOG MICROPHONE INPUT TO K8 BUS

APPLICATIONS

Collect a set of microphones around a table for transport over a single Cat 5 cable back to the equipment room.
Transport microphone signals from conference rooms to a central digital signal processing rack handling multiple
rooms.
Send a remote microphone location up to 200 meters before refreshing the line without concern for induced noise or
ground loops.
Reconfigure facility use from a central location with remote microphone preamp control and remote front panel
lockouts through software.
Use in conjunction with K8-AESO16, 8 channel AES3 output device, and get the benefit of A/D conversion built into the
system.
Use the K8-MI8 as a microphone snake back to a broadcast truck and split the second K8 output leg to the house
mixing console.
For a simple voice reinforcement system, directly connect a K8-MI8 to K+H amplifiers or powered speakers for an
immediately working system without induced noise or ground loops.
Replace an existing failing tie line system by pulling a single Cat 5 in place of the old multipair microphone snake.

ARCHITECT & ENGINEERING SPECS

K+H Vertriebs- und Entwicklungsgesellschaf t mbH 170309

Auf dem Kessellande 4A
30900 Wedemark
Germany