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Dual High Gain Line Amplifiers
Series:
Model: STA-2A
- Up to 24 dB Gain in Audio Lines
- Conversion between Unbalanced and Balanced
- Conversion between High and Low Impedance
- Low-Impedance, High-Current Line Drivers
- Dual-Channel Line-Level Preamplifiers
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The STA-2A is a dual-channel, line-level audio preamplifier. Each channel is identical. The audio inputs are bridged at 20 k ohm and accept either an unbalanced or a balanced audio signal. Gain is adjustable from unity to +24 dB using a 25-turn precision audio taper trimming potentiometer. The output line driver circuits are designed to drive long balanced audio lines into 600 ohm loads. The STA-2A features wideband circuitry for excellent phase response, low noise, low distortion and exceptional audio clarity. RDL's SupplyFlex power input configuration is included in the STA-2A. The power supply input may be fed from a floating (not ground-referenced) 24 Vdc power source, from a bipolar power supply (+/- 12 Vdc or +/-15 Vdc) or from a ground-referenced 24 Vdc power supply. Many audio products provide optimum performance when feeding into a bridging input, but may not provide the output needed to directly drive low-impedance lines terminated with 600 ohm transformers. The STA-2A is specifically designed for such installations, and is also ideal in installations requiring high gain in line-level audio transmission.
- Up to 24 dB Gain in Audio Lines
- Conversion between Unbalanced and Balanced
- Conversion between High and Low Impedance
- Low-Impedance, High-Current Line Drivers
- Dual-Channel Line-Level Preamplifiers
- High Gain, High Output, High Performance
- RDL SupplyFlex Power Input Configuration
- Amplifier Signal Type - Audio
- Amplifier Type - Other
- Operating Temperature (Maximum): 131 F
- Operating Temperature (Minimum): 32 F
- Maximum Frequency Response (Bandwidth): 100 kHz
- Maximum Frequency Response (Bandwidth): 100000 Hz
- Minimum Frequency Response (Bandwidth): 10 Hz
- Minimum Frequency Response (Bandwidth): 0.01 kHz
- Total Harmonic Distortion + Noise (THD+N): 0 %
- Shipping Weight: 0.25 lbs
- Number of Inputs: 2
- Number of Outputs: 2
- Amps per STA-2A: 2 identical circuits (stereo or dual mono operation)
- Inputs (2): 20 k Ohms balanced or unbalanced
- Input Signal (for +4 dBu out): -20 dBu (-18 dBV) to +18 dBu
- Maximum Input Level: +24dBu
- Outputs (2): 150 ohms balanced or 75 Ohms unbalanced
- Balanced: +4 dBu nominal
- Unbalanced: 6 dB below balanced line level
- Maximum Output Level: +25 dBu
- IMD: Less than 0.005% (unity gain)
- Noise below +4 dBu: Less than -90 dB (unity gain)
- Crosstalk: Less than -80 dB (unity gain)
- Headroom: Greter than 20 dB (above +4 dBu)
- Gain: Unity +24 / -14 dB (adjustable)
- CMRR: Greter than 60 dB (50 Hz to 120 Hz)
- Power Requirement: 24 to 33 Vdc @ 50 mA
Datasheet for Dual High Gain Line Amplifiers
544261 kb
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Contact ESA Communications Ltd.
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ESA Communications Ltd.
#27 – 2861 Sherwood Heights Dr.
Oakville, ON L6J 7K1
Canada
(905) 216-0500
www.esacommunications.com
Contact in regards to this product:
Radio Design Labs
Model: STA-2A
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