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STM-DA3 1x3 Microphone Level Distribution Amplifier by RDL

SKU: STM-DA3
STM-DA3 1x3 Microphone Level Distribution Amplifier by RDL

STM-DA3 1x3 Microphone Level Distribution Amplifier by RDL

  • $216.68
Market price: $240.75, you save $24.07
  • 10% less
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  • Brand
    RDL
  • SKU
    STM-DA3
  • Weight
    1.00 lbs
  • Warranty
    3 Years
  • Condition
    New
  • Status
    Available
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In stock (50 items available)
The STM-DA3 is designed for use in quality commercial sound, broadcast and recording applications. The 1.2 kΩ balanced input accepts a wide variety of microphone input levels without loading professional low impedance microphones. A multi-turn trimme
  • Brand
    RDL
  • SKU
    STM-DA3
  • Weight
    1.00 lbs
  • Warranty
    3 Years
  • Condition
    New
  • Status
    Available
Product availability status
Questions? Ask our experts!

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  • $216.68
Market price: $240.75, you save $24.07
  • 10% less
Make an Offer


The STM-DA3 is designed for use in quality commercial sound, broadcast and recording applications. The 1.2 kO balanced input accepts a wide variety of microphone input levels without loading professional low impedance microphones. A multi-turn trimmer is user adjustable for either gain or loss in order to match the facility standard microphone levels. Three balanced outputs provide nearly total isolation between the output lines. Unlike mic-splitting transformer systems, the STM-DA3 also provides audio isolation. In fact, the audio isolation is so good that a +4 dBu signal fed into one output is still below the noise floor on the adjacent output. Loading of one output including a direct short, has no effect on the other outputs.

The STM-DA3 is built on the electrical architecture of RDL's low-noise studio quality mic preamplifiers. Dynamic or condenser microphones may be used with the STM-DA3. Standard 24 V phantom is supplied to the input when the supply voltage is connected to the PHM terminal. Optimum operating level is set using RDL's unique Dual-LED VU meter, located adjacent to the terminal block. A green LED illuminates at 15 dB below optimum level. The intensity of the green LED progresses from minimum to full intensity over a 15 dB range. The adjacent red LED illuminates when the operating level exceeds the optimum level. This makes the STM-DA3 easy to set up without any external test equipment, and operating levels may be monitored at the module

For Mic to Line level distribution, use the RDL STM-LDA3.

Features

  • Feed 1 Microphone to 3 Microphone Inputs
  • Electrical and Audio Isolation
  • Studio Quality Low-Noise, Low-Distortion Performance
  • Excellent Phase Response
  • Versatility of STICK-ON® Compactness
Input: 1.2 kO balanced
Outputs (3): -45 dBu, 150 O balanced
Gain Range: 17 dB (Adjustable, 25-turn trimmer)
Control Fully CCW: Gain = -5 dB
Control Fully CW: Gain = 12 dB
Frequency Response: 30 Hz to 20 kHz (± 0.2 dB)
THD+N: < 0.1%
IMD: < 0.1%
Noise: < 80 dB (below -50 dBu output, -50 dBu input)
Headroom: > 20 dB (-50 dBu output, -45 dBu input)
CMRR: > 60 dB (100 Hz to 5 kHz)
Output Isolation: > 135 dB (balanced audio) > 150 dB (common mode)
Ambient Operating Environment: 0° C to 55° C
Power Requirement: GROUND-REFERENCED, 24 Vdc @ 40 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
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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.

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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