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LD SYSTEMS PRE ST 1 PREAMPLIFIER 4-channel, 2x mic/line, 2x stereo in, 1x emergency input
LD SYSTEMS PRE ST 1 PREAMPLIFIER 4-channel, 2x mic/line, 2x stereo in, 1x emergency inputLD SYSTEMS PRE ST 1 PREAMPLIFIER 4-channel, 2x mic/line, 2x stereo in, 1x emergency inputLD SYSTEMS PRE ST 1 PREAMPLIFIER 4-channel, 2x mic/line, 2x stereo in, 1x emergency inputLD SYSTEMS PRE ST 1 PREAMPLIFIER 4-channel, 2x mic/line, 2x stereo in, 1x emergency input

Designed for installation in commercial properties including restaurant, conference, shop, or transport station, LD Systems pre-amplifiers offer a 'visually discrete design' whilst being 'flexible and versatile' in their functionality.

Amplified versions of the PRE ST 1 are available in the form of LD System IMA 30 and IMA 60, see LD SYSTEMS MIXER AMPLIFIERS

PRE ST 1

PRE ST 1 is a mixer/pre-amplifier without amplifier output, and is designed to be used in conjunction with an existing amplifier and speaker system.

An array of audio inputs, including Bluetooth for wireless connection, allows the user to connect multiple microphones or playback options. Four priority levels are included to allow the management of playback during emergency or priority announcement, and an automatic standby mode can be employed to reduce power consumption in period whereby no audio is required.

In total there are 2x microphone/line level inputs, 1x balanced line emergency input, 1x Bluetooth wireless audio input, and 1x line output.

The front facing panel houses controls and visual identification of signal/clipping including rotary controls for channel 1 and channel 2 inputs, and a rotary controller for the music input. Each controller has associated 'signal' and 'clip' LEDs so that the input level can be identified and adjusted accordingly. A touch sensitive control button enables the selection of music source, whilst a second touch sensitive button allows Bluetooth pairing. A large rotary controller allows the adjustment of the summed signal of all channels with the exception of the emergency channel - which bypasses the master volume control and routes directly to the output stage. A LED ring around the main output controller illuminated white when a signal is present, yellow when the internal limiter is activated. Priority and Emergency LEDs illuminate yellow when either is active. Finally, a power button and associated LED allow identification of power on. This LED illuminates white when turned on, and red when in standby mode. The time to auto-standby is 20 seconds minimum.

The rear facing panel of houses all input and output connectivity. An emergency input is by way of 5-pin terminal block input and has associated gain and 'Vox' control to set up the threshold for the emergency trigger. Pins '+', '-', and 'G' form the balanced input whilst pins 'C' and '+' are for a separate mute switch connection. Mic/line channel one is by way of 5-pin terminal block or combo jack/3-pin XLR connection. Associated buttons allow the selection of phantom power on/off and mic/line level switching. A rotary controller allows the adjustment of the 2 second, 12-bit chime level, and a 'Vox' control allows the setting of audio threshold for the channel 1 input. Mic/line channel two has dual RCA (phono) input connections along with 3-pin terminal block. Associated 24V phantom power on/off and mic/line input level switches are positioned between the input connection types. The music channel has two dual RCA (phono) inputs, designed to input two separate music sources - albeit only one can be selected at any time via the selection switch on the front facing panel. Standby mode can be activated via a switch. A 5-pin terminal block allows left and right line output. This can be switched to mono or stereo. Bass and treble controls allow adjustment of +/-10dB at 100Hz and +/-10dB at 10kHz.

Operating voltage: 100-240V AC, 50-60Hz. Power consumption: 6watts, maximum; 5watts, idle. Dimensions (WxDxH): 210 x 266.76 x 95mm, including rubber feet. Weight: 2.08kg.

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LD SYSTEMS PRE ST 1 PREAMPLIFIER 4-channel, 2x mic/line, 2x stereo in, 1x emergency input Stock code: 93-0961
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