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LINE AMPLIFIERS

Understand audio signal strength and common types with line amplifiers. Convert balanced to unbalanced or vice versa, adjust signals, and use connectorized amplifiers for easy conversion. Explore various models with adjustable gain settings and dual-channel options for professional, broadcast, and consumer applications.

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LINE AMPLIFIERS

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  1. LINE AMPLIFIERS Increase or Decrease Line Level Signal Strength • Amplify signals for long cable runs • Increase / decrease levels for signal conversion • Convert unbalanced to balanced signals • Convert balanced to unbalanced signals

  2. LINE AMPLIFIERS UNDERSTANDING AUDIO SIGNAL STRENGTH

  3. LINE AMPLIFIERS COMMON AUDIO SIGNAL TYPES AND WIRING (MANY VARIATIONS EXIST ) Professional / Broadcast Consumer

  4. LINE AMPLIFIERS Balanced to Unbalanced or Unbalanced to Balanced Conversion Adjust Signals from -10 dBV to +4 dBu or +4 dBu to -10 dBV • Two channel amplifier • Adjustable Gain -12 to +20 dB • Requires dedicated power supply STA-1 • Two channel amplifier • Adjustable Gain -14 to +24 dB STA-2A • One channel (mono) amplifier • Adjustable Gain -14 to +14 dB STA-1M

  5. LINE AMPLIFIERS Connectorized for Easy Conversion • Converts two balanced lines to unbalanced • Decrease from +4 dBu to -10 dBV • -10 dBV output with -6 to +6 dB adjustment • Dual XLR inputs to RCA outputs FP-BUC2 • Converts two unbalanced lines to balanced • Increase from -10 dBV to +4 dBu • +4 dBu output with -5 to +10 dB adjustment • Dual RCA inputs to XLR outputs FP-UBC2

  6. LINE AMPLIFIERS • Stereo unbalanced to balanced conversion • Adjustable +2 to +22 dB Gain • Dual LED VU for precision calibration • Stereo outputs plus summed mono output ST-UBA2 • Convert six unbalanced lines to balanced • Increases -10 dBV to +4 dBu • Adjustable -5 to +10 dB Gain • Great for “surround sound” applications FP-UBC6

  7. LINE AMPLIFIERS Stereo Audio Format Converters with Concurrent Bi-directional Operation Unbalanced lines to balanced line section • Increase -10 dBV to +4 dBu • +4 dBu output with -25 to +9 dB adjustment • RCA inputs to XLR or terminal block outputs • Summed mono output on terminal block Balanced lines to unbalanced line section • Decrease +4 dBu to -10 dBV • -10 dBV output with -25 to +5 dB adjustment • XLR or terminal block inputs to RCA Dual LED VU meters for each output RU-AFC2 • Same features as above except: • Off to +12 dB adjustment for both converters • No terminal blocks EZ-AFC2

  8. LINE AMPLIFIERS Telephone Line Simulator • Used for older style key telephone systems • Interfaces paging or radio systems • Simulates an incoming TELCO line • Often used for special applications ST-TC1

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