
Neets Audio Preamplifier
Network Controlled Audio Preamplifier with PoE
Neets Audio Preamplifier is a network controlled audio preamplifier controlled through LAN or RS-232.
The Preamplifier adds additional RS-232 and I/O ports for expansion of the AV system and integrates with Neets and 3rd party control systems.
The USB audio input enables direct audio input and volume control from a computer (PC or Mac). The Preamplifier can be powered by Power over Ethernet or the included 12V PSU.
4 unbalanced stereo inputs
Unbalanced stereo audio input for line input on RCA connectors1 Balanced stereo audio output
Stereo balanced or single ended line level output on terminal blocksUSB audio
Provides audio playback and volume control on connected PC or MacPower over Ethernet
Power can be supplied through PoE1 LAN port
Enables control of the amplifier and adds two extra RS-232 ports for expansion of the control system2 Bi-directional RS-232 ports
Used for control or expanding the AV system with more devices4 General Purpose I/O ports
Used for extra input/output ports for control of relays, switches and sensors.Auto power function
Powers on when signal is detected, and enter sleep-mode automatically after 15 minutes without signal
12V DC power in/out
When powered by PoE the 12V DC output supplies power for external devices such as control system. When not powered by PoE the included 12V PSU can be used for power inputInput 1 Mix function
Possible to set Input 1 as an input, that mixes with the current selected input.3 band equalizer
Works as an active filter for bass, mid and trebleLED indicators on the front
Convenient located on the front for easy performance indicationEasy mounting
Can be mounted in trunking systems, hidden or in 1RU using the Neets Rack ShelfConfiguration
Configuration takes place via USB or LAN using a built-in configuration area that fully integrates with Neets Project Designer



Technical Specifications:
Line output:
Balanced output: 1 stereo output
Output impedance: 100 Ohm
Output level @ 0 dB/FS: 1.3 Vrms/+4 dBu
Connector: 5 pin screw block
Analog audio input:
Unbalanced inputs: 4 stereo inputs
Input impedance < 100 k Ohm
Max input level: 2 Vrms
Input gain adjustable: +/- 12 dB
Wake on signal: Adjustable level
Connector: 2 x 4 RCA female
USB audio input:
Supported OS:
MAC OS-X
Windows XP, Vista, 7, 8, 8.1,10
Bit depth: 16 bit
Sample rate: 48 kHz
Controls: Volume, mute
Wake on signal: Trigger on 5V USB
Connector: USB-B female
Power input/output:
Input/output voltage: 12 VDC
Max power usage : 5 W
Standby power usage: < 3 W
Connector: 2 pin screw block
Power over Ethernet:
Compliance: 802.3af / 802.3at
802.3af mode: A + B
PD Class: 2
Power adaptor (included):
Input voltage: 100 VAC – 240 VAC
Line frequency: 50 Hz – 60 Hz
Max power usage : Max 25 W
Connector: Prong matching country of sale
Network (LAN):
Speed: 10 / 100 Mbit
Duplex modes: Half or Full
DHCP: Default off
Default IP: 192.168.254.252
Default gateway: 192.168.1.1
Default subnet mask: 255.255.255.0
Connector : RJ45 with LED
RS-232 / IR ports:
Ports: 2 x bidirectional
Baud rate: 1200 – 115200 bit/sec
Data bits : 7, 8
Parity: Even, Odd, None
Stop bits: 1, 2
IR frequency: 400 Hz to 500 KHz
Connector: 2 x 3 pin screw blocks
Input / Output:
Ports: 4 x I/O
Input trigger low: < 1VDC
Input trigger high: > 4VDC
Output type: Open drain
Isolated output: No
Max voltage load: 24 VDC
Max current: 0.5 A
Connector : 5 pin screw block
Dimensions:
Width: 218 mm
Depth: 70 mm
Height: 37 mm
Width: 8,58 Inches
Depth: 2,76 Inches
Height: 1,46 Inches
General:
Weight: 0.5 kg
Storage temperature: -20 °C to 50 °C
Storage moisture: Non condensing
Operation temperature: 0 °C to 30 °C
Operation moisture: Non condensing
Approvals
IEC/EN 61000-6-1
IEC/EN 61000-6-2