AudioControl BLX-1K

Balanced Line Transceiver

BLX-1K

Professional A/V installers often encounter projects requiring long cable runs, and the BLX-1K has been engineered as a premium, simple solution to efficiently address these challenges. The BLX-1K is a signal extender that sends and receives a fully balanced, noise-rejecting, analog audio signal up to 1000 feet over standard CAT5e/6A cable.

Designed for use in pairs at both ends of the signal path, each BLX-1K contains a 2-channel receive stage as well as a 2-channel transmit stage, enabling audio to travel in both directions across a span of standard CAT5e/6A. Once wired connections are made, the A/B button on one unit is pressed to reverse the signal path. Signal gain can then be set to complete the installation. The BLX-1K comes equipped with a 24 VAC transformer for easy connection and ultra-quiet performance.

The BLX-1K delivers a stout output of nearly 8 Volts rms with an exceptionally low noise floor, providing a pure, crystal clear audio signal over long Ethernet runsthe ultimate problem-solver for A/V installers.

• Send/receive high-quality audio up to 1000 feet
• High gain, low noise outputs
• Supports standard Cat5/6 cable
• Independent gain and attenuation controls

SKU: ACP-BLX-1K

INPUTS

• Unbalanced Inputs (RCA): 2
• Unbalanced Input Impedance: 100 kΩ
• Maximum Unbalanced Input Signal Level: 3.8 Vrms
• Balanced Inputs (CAT5e/6A): 1 (2 channel)
• Balanced Input Impedance: 200 kΩ

GENERAL

• Power Supply: 24 VAC
• Current Draw: 50 mA

OUTPUTS

• Unbalanced Outputs (RCA): 2
• Unbalanced Output Impedance: 150 Ω
• Maximum Unbalanced Output Signal Level: 7.5 Vrms max
• Balanced Outputs (CAT5e/6A): 1 (2 channel)
• Balanced Output Impedance: 150 Ω
• Maximum Balanced Output Signal Level: 15 Vrms max

WEIGHT & DIMENSIONS

• Dimensions: 6.2 W x 4.3 D x 1.0 D
• Weight: 1.0 lbs. (0.5kg)

PERFORMANCE

• Frequency Response: 20 Hz to 20 kHz, ± 1 dB
• Signal to Noise: >100 dB (ref. full output = 7.5 Vrms)
• Total Harmonic Distortion: 0.1%
• Headroom: 8.5 dB
• Channel Separation: 90 dB (1 kHz)
• CMRR: >69.5 dB (1kHz)

IN THE BOX

•  BLX-1K, AC Adapter, Manual, Warranty

• Send/receive high-quality audio up to 1000 feet
• High gain, low noise outputs
• Simple connection with one-button setup
• Supports standard CAT5e/6A cable
• Separate balanced line driver and receiver stages
• Independent gain and attenuation controls
• Ground lift option (when using shielded CAT5e/6A)
• Integrated mounting brackets

• Cutsheet
• Quick Start Guide