Specifications

2 Description
22..44..22 DDiissppllaayy
Fig. 2: LC display on
transmitter front panel.
Refer to fig. 2.
22..44..33 RReeaarr PPaanneell
Fig. 3: Inputs and outputs
on transmitter rear panel.
Refer to fig. 3.
22..55 SSPPRR 44 BBooddyyppaacckk
RReecceeiivveerr
22..55..11 CCoonnttrroollss
Refer to fig. 4.
The display indicates all operating parameters of the transmitter:
1 Compressor and limiter gain reduction.
2 Menus for frequency, transmitter name, input gain, audio processing, system
settings.
3 Submenus for Preset (country code), Frequency Group, Subchannel, RF out-
put.
4 OFF (red): Indicates the transmitter is off the air.
5 LOCK mode label (red): goes out in SETUP mode.
6 Alphanumeric display.
7 Audio input level bargraph and red PEAK LED
8 Audio functions: input mode, highpass filter, EQ, room simulation, compressor,
bypass.
In SETUP mode, the currently active setup parameter will be flashing.
1 ANTENNA: BNC antenna output.
2 AUDIO LOOP L/CH1, R/CH2: These two jacks are connected in parallel to the
AUDIO IN jacks and carry the unprocessed input signal.
3 AUDIO IN L/CH1/MONO, R/CH2: Combined female XLR/1/4" jacks for feed-
ing in a stereo or mono signal. The ¼" jacks accept both balanced and unbal-
anced cables.
4 LINE OUT STEREO: This TRS ¼" jack provides the processed audio signal.
You can feed this signal, e.g., to an HPA 4000 headphone amplifier, an extra
monitor amplifier for floor wedges, etc.
5 DC ONLY: Locking DC input for connecting the included power supply.
6 DATA: Interface for linking the transmitter to a HiQNet network for controlling the
transmitter using a computer and HUB 4000 Q.
The SPR 4 bodypack receiver has been designed specifically for use with the
SST 4 transmitter and IP 2 earbuds. You may, however, connect other earbuds to
the receiver as well.
To power the receiver you can use either the two supplied dry batteries or the op-
tional BP 4000 battery pack from AKG.
1 Headphones output: TRS mini jack.
2 Detented rotary control with integrated on/off switch: Switches power to
the receiver on and OFF and sets the volume of the earbud signal.
3 Permanently attached flexible antenna.
4 Status LED
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