Name: RDL STA-2A Dual High Gain Line Amplifiers
Brand: Radio Design Labs
SKU: STA-2A
Price: 222.51 USD
Availability: InStock

Item Description

Amps per STA-2A:	2 identical circuits (stereo or dual mono operation)
Inputs (2):	20 kΩ balanced or unbalanced
Input Signal (for +4 dBu out):	-20 dBu (-18 dBV) to +18 dBu
Maximum Input Level:	+24 dBu
Outputs (2):	150 Ω balanced or 75 Ω unbalanced
Output Signal:
Balanced:	+4 dBu nominal
Unbalanced:	6 dB below balanced line level
Maximum Output Level:	+25 dBu
Frequency Response:	10 Hz to 100 kHz (+/- 0.05 dB)
THD+N:	< 0.004% (unity gain)
IMD:	< 0.005% (unity gain)
Noise below +4 dBu:	< -90 dB (unity gain)
Crosstalk:	< -80 dB (unity gain)
Headroom:	> 20 dB (above +4 dBu)
Gain:	Unity +24 / -14 dB (adjustable)
CMRR:	> 60 dB (50 Hz to 120 Hz)
Power Requirement:	GROUND-REFERENCED or FLOATING, 24 to 33 Vdc @ 50 mA
Ambient Operating Environment:	0° C to 55° C

More Info

More Information

Brand

Radio Design Labs

Manufacturer

Radio Design Labs

SKU

STA-2A

UPC

813721012258

Part No

STA-2A

Weight (lb.)

0.5

Product Datasheet

sta-2a.pdf

Unit

EACH

Carton Quantity

1

Lead Time

Shipped within 24 hours

Short Description

The STA-2A is a dual-channel, line-level audio preamplifier. Each channel is identical. The audio inputs are bridged at 20 kΩ 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 Ω 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 Ω transformers. The STA-2A is specifically designed for such installations, and is also ideal in installations requiring high gain in line-level audio transmission.

Description

Amps per STA-2A:	2 identical circuits (stereo or dual mono operation)
Inputs (2):	20 kΩ balanced or unbalanced
Input Signal (for +4 dBu out):	-20 dBu (-18 dBV) to +18 dBu
Maximum Input Level:	+24 dBu
Outputs (2):	150 Ω balanced or 75 Ω unbalanced
Output Signal:
Balanced:	+4 dBu nominal
Unbalanced:	6 dB below balanced line level
Maximum Output Level:	+25 dBu
Frequency Response:	10 Hz to 100 kHz (+/- 0.05 dB)
THD+N:	< 0.004% (unity gain)
IMD:	< 0.005% (unity gain)
Noise below +4 dBu:	< -90 dB (unity gain)
Crosstalk:	< -80 dB (unity gain)
Headroom:	> 20 dB (above +4 dBu)
Gain:	Unity +24 / -14 dB (adjustable)
CMRR:	> 60 dB (50 Hz to 120 Hz)
Power Requirement:	GROUND-REFERENCED or FLOATING, 24 to 33 Vdc @ 50 mA
Ambient Operating Environment:	0° C to 55° C