Permanent installations require solutions which offer a visually discrete design that blends into the background while still being flexible and versatile in their functions. You need to be able to connect different audio sources and manage them, to mute non-priority signals during announcements or emergency calls.
The PRE ST 1 is a 4-channel multi-functional stereo mixer preamplifier that allows users to mix 2 microphone/line sources together with an emergency line input and one of the 3 music sources available, including a Bluetooth receiver. These versatile connection options together with a four-level priority system, that combines contact closure inputs and VOX audio detection circuits, guarantees a seamless integration in almost any commercial audio application.
PRE ST 1 is equipped with two priority contacts: one for the emergency input, which mutes all the other signal sources, and one for the microphone inputs, which mutes the music signal sources. The stereo balanced line output includes a mono/stereo switch and separate tone controls for bass and treble. An automatic standby mode can also be activated in order to further reduce energy consumption when the device is not used.
The intuitive design of its control panel ensures an easy operation, with input and master volume controls, clear signal level and priority indications, and a practical music source selection and Bluetooth pairing activation via capacitive buttons. On the other hand, the clarity of the rear panel and the compact 9.5" format ensures that the preamplifier can be easily installed.
Specifications:
Product type: Installation mixer preamplifier
Emergency input: 1 balanced line input
Mic/ line inputs: 2
Music sources: 2 unbalanced stereo line inputs, Bluetooth 4.0
Line Output Connectors: 1 (Stereo/Mono switchable)
Cooling: Convection
Priority levels: 4
Nominal input sensitivity: -3 dBu (Sine 1 kHz, Gain max)
Nominal input clipping: 20 dBu (Sine 1kHz)
Connector: 5-pin Terminal Block, pitch 5.08mm
Nominal input sensitivity Mic: -26 dBu (Sine 1 kHz, Gain max)
Nominal input sensitivity line: -2 dBu (Sine 1 kHz, Gain max)
Nominal input clipping Mic: -5 dBu (Sine 1kHz)
Nominal input clipping line: +19dBu (Sine 1kHz)
Phantom power: + 24V, 10mA switchable
Priority Contact closure: +5VDC normally open for dry contact
Connector Mic/Line1: 1 XLR/6.3mm Jack combo connector, 5-pin Terminal Block, pitch 5.08mm
Connector Mic/Line 2: 1 dual RCA Mono Summed, 3-pin Terminal Block, pitch 5.08mm
Nominal input clipping CD/AUX: 8 dBV (Sine 1kHz)
Connector CD/AUX: 2 x dual RCA Mono Summed
Outputs: Mono switchable, Stereo Line Level
Max. output level: 16 dBu
Tone controlBass: +/-10 dB (100 Hz)
Tone control Treble: +/-10 dB (10 kHz)
Type: SMPS
Operating voltage: 100 V AC - 240 V AC, 50 - 60 Hz
Power consumption (max.): 6 W
Idle power consumption: 5 W
Standby power consumption: < 1 W
Operating temperature ( non-condensing ): 0°C - 40°C; < 85% humidity, non condensing
Time to Auto-standby: 20 Min.
Dimensions (W x H x D) ( height with rubber feet ): 210 x 95 x 266.76 mm
Optional accessories: Rack mounting hardware
Weight: 2,08 kg
