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STA-2A Dual High Gain Line Amplifier by RDL

SKU: STA-2A
STA-2A Dual High Gain Line Amplifier by RDL

STA-2A Dual High Gain Line Amplifier by RDL

  • $247.23
Market price: $274.70, you save $27.47
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  • Brand
    RDL
  • SKU
    STA-2A
  • Weight
    0.50 lbs
  • Warranty
    3 Years
  • Condition
    New
  • Status
    Available
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In stock (50 items available)
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 precisio
  • Brand
    RDL
  • SKU
    STA-2A
  • Weight
    0.50 lbs
  • Warranty
    3 Years
  • Condition
    New
  • Status
    Available
Product availability status
Questions? Ask our experts!

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  • $247.23
Market price: $274.70, you save $27.47
  • 10% less
Make an Offer


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

Features:

  • 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
Amps per STA-2A: 2 identical circuits (stereo or dual mono operation)
Inputs (2): 20 kO balanced or unbalanced
Input Signal (for +4 dBu out): -20 dBu (-18 dBV) to +18 dBu
Maximum Input Level: +24 dBu
Outputs (2): 150 O balanced or 75 O 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)
Ambient Operating Environment: 0° C to 55° C
Power Requirement: GROUND-REFERENCED or FLOATING, 24 Vdc @ 50 mA
Package Type: Cardboard Box
Package Dimensions: 2 x 2 x 4 in.
Shipping Weight: 0.2 lbs.
WEEE weight: 0.145 lbs.
Tariff code: 8518.40.2000
Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.

UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations.UPS Ground does not deliver on Saturdays, Sundays or Holidays.

USPS Priority Mail/USPS Express Mail For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.

Air Shipment
Air shipments, Overnight, 2nd day and 3 day select methods offer guaranteed delivery time for your shipment. If you are in hurry or in need for the items on schedule, select one of these methods. Up-to-date tracking information is provided with each Air Shipment. AVProSupply has the right to choose between Air shipments to meet or reduce delivery time. For guaranteed delivery of multiple items with expedited shipping, please contact our customer service representative for personalized assistance to get your items delivered to you when you need them.

International Customers
We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.

Most items ordered from AVProSupply will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.

PAYMENTS ACCEPTED:

Major Credit Cards: Visa, MasterCard, Discover and American Express.
Paypal: You can select an option of Paying with Paypal in our shopping cart.
Money orders: and personal checks or company checks (may take up to 10 days to clear).
Wire Transfer: ( Bank Transfer ) Only for the amount over $500. Contact us for the bank details.
Phone Orders: To place a phone order please call 1.888.902.3309 or 1.916.246.6264 and one of our Customer Service Representatives will take your order (8:00am - 6.00pm PST).

Purchase order: Fax purchase orders to 1.916.672.2557

We Offer A 30-Day Money Back Guarantee: 
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

Refunds:
Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

Exchanges:
If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

TVs and monitors 20" and larger
Special Order merchandise
Any item indicated on the website as non-returnable

For more information see our official Return Policy

  • Shipping Info
    We offer free ground shipping on every purchase of $300 and more for US and US territory. We deliver worldwide.
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  • Payment Methods

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  • Return Policy
    We Offer a 30-Day Money Back Guarantee
    Learn more