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RDL STM-DA3 - 1 x 3 Microphone Distribution Amplifier

B&H # RDSTMDA3 MFR # STM-DA3
RDL STM-DA3 - 1 x 3 Microphone Distribution Amplifier

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Ship Time: 7-10 business days 
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Not eligible for free Expedited Shipping

You Pay: $127.00

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The STM-DA3 from RDL is a compact and portable microphone distribution amplifier designed for use in broadcast and recording applications. Part of RDL's "stick-on" series, the STM-DA3 is perfect for use in a studio or out in the field and comes with adhesive for permanent or removable mounting. Built on the electrical architecture of RDL's mic preamps, the STM-DA3 provides excellent audio quality with very low self-noise, suitable for any professional application.

Featuring a 1.2 k ohm balanced input, the STM-DA3 accepts a wide variety of mic input levels without loading low-impedance microphones. Phantom power can be supplied when the supply voltage is connected to the "PHM" screw terminal. A multi-turn trimmer allows you to adjust the gain to match microphone levels.

The three balanced outputs provide full audio isolation. A dual LED VU meter shows green over a 15dB range and goes to red when the optimum operating level is exceeded. These professional features tucked neatly into such a portable package make the STM-DA3 a must when you need to feed one microphone into 3 mic inputs.

Sends one mic signal to three balanced outputs
Ultra-clean audio with low self-noise and distortion
Electrical and audio isolation
Compact and portable
Mounting adhesive included
Dual LED VU meter
Phantom power available
Accepts a wide variety of microphone signals
Input 1 x Screw Terminal (1.2 k ohms Balanced)
Outputs 3 x Screw Terminals (-45 dBu, 150 ohm Balanced)
Gain Range 17 dB (Adjustable, 25-Turn Trimmer)
Frequency Response 30Hz - 20kHz (+/- 0.2dB)
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)
Common Mode Rejection Ratio > 60 dB (100Hz - 5kHz)
Output Isolation > 135 dB (Balanced Audio)
> 150 dB (Common Mode)
Power Requirements 24 - 33 VDC @ 40 mA (Ground-Referenced)
Dimensions Not Specified by Manufacturer
Weight Not Specified by Manufacturer
RDL STM-DA3 - 1 x 3 Microphone Distribution Amplifier
  • Mounting Adhesive
  • 3 Year Limited Warranty
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    Batteries & Power

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    Required item: A Power Supply (not included) is required to power this device.

    RDL - PS-24AS Switching Power Supply
    • You Pay: $24.00
     

    Bulk Raw Cable

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    Canare - L-4E6AT Star Quad Microphone Cable (656'/200 m)
    • You Pay: $229.95
    More Coming Soon ?
    Estimated arrival at B&H is 7-10 business days. An authorization for this product will be processed upon placing the order. You will be charged for this item at the time of Shipment.
    PayPal Orders
    PayPal orders will be charged when the order is placed.
    International Orders
    For international orders, credit cards will be charged at time you place your order.
     

    Additional Hardware

    RDL - DTB Detachable Terminal Block
    • You Pay: $6.85
    Special Order ?
    This item is usually Drop Shipped from the MFR/Distributor within 7-10 business days (subject to availability). Your order will be charged at the time of placing the order with the MFR. Item is non-cancelable and non-returnable.
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    PayPal orders will be charged when the order is placed.
    International Orders
    For international orders, credit cards will be charged at time you place your order.
     

    Rack Accessories

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    RDL - RC-1U Universal Rack Chassis
    • You Pay: $99.00
    Special Order ?
    This item is usually Drop Shipped from the MFR/Distributor within 7-10 business days (subject to availability). Your order will be charged at the time of placing the order with the MFR. Item is non-cancelable and non-returnable.
    PayPal Orders
    PayPal orders will be charged when the order is placed.
    International Orders
    For international orders, credit cards will be charged at time you place your order.
     

    Mounting

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    RDL - MB-2 Mounting Kit
    • You Pay: $2.18
    Special Order ?
    This item is usually Drop Shipped from the MFR/Distributor within 7-10 business days (subject to availability). Your order will be charged at the time of placing the order with the MFR. Item is non-cancelable and non-returnable.
    PayPal Orders
    PayPal orders will be charged when the order is placed.
    International Orders
    For international orders, credit cards will be charged at time you place your order.
     
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