User Manual

10 | KH 120

Connecting digital signals to the KH 120 D

Connect the digital AES3 or S/P-DIF-output signal of your audio source to the AES3

INPUT socket C of the respective KH 120 D. See picture below.

The KH 120 D loudspeaker only supports non-encoded AES3 and S/P-DIF signals.

Encoded signals such as MP3, DTS or Dolby Digital are not supported.

Make an appropriate setting (“DIGITAL A” or “DIGITAL B”) on the SIGNAL SELECT

rotary switch D. The setting depends on the signal channel order and the loudspeaker

position.

Only one cable is needed for uncompressed AES3 and S/P-DIF digital signals

(single-wire mode). They contain two audio channels: “subframe A” and “sub-

frame B”. Usually, the audio channels are:

Subframe A Subframe B

Left Right

Center LFE

Surround left Surround right

Back left Back right

A clock input is not required because loudspeakers are not audio sources and the

converters are clocked to a very stable internally generated clock source.

To connect an additional loudspeaker:

Use the AES3 OUTPUT socket B. See picture below.

Make an appropriate setting (“DIGITAL A” or “DIGITAL B”) on the SIGNAL SELECT

rotary switch D.

BNC In BNC InBNC Out

Digital Source:

AES3 or S/P-DIF

RCA, BNC or XLR

Use a Neutrik NADITBNC-F impedance and level converter (not supplied) for XLR

to BNC conversions of AES3-signals. This method brings impedance matching, level

matching and source-receiver isolation. The Neutrik NADITBNC-F converter is guaran-

teed to work up to 48kHz. Only one converter is needed per digital signal cable.

Use the following wiring if you want to make your own converter:

CAUTION

Damage to the product due to high AES3 signal levels!

AES3 signal levels in XLR cables are much too high for the

AES3 INPUT socket

(BNC)C. If you connect such signals without reducing the signals’ level, damage to

the product will occur.

Always make sure that your converter is able to match impedance and level.

KH 120 D

Connecting

AES cables