Skip to product information
Radio Design Labs STM-3 High Gain Microphone Preamplifier
1/2
backorder

Radio Design Labs STM-3 High Gain Microphone Preamplifier

$545.00 AUD
Brand: Radio Design Labs
SKU: STM-3

Rent from

Backorder

Mega Music Myaree

Available to Order In

Mega Music Wangara

Available to Order In

Mega Music Warehouse

Available to Order In

Radio Design Labs STM-3 High Gain Microphone Preamplifier

Mega Music Myaree

Available to Order In

95 N Lake Rd
Myaree WA 6154
Australia

+61893302777

Mega Music Wangara

Available to Order In

5/32 Prindiville Drive
Wangara WA 6065
Australia

+61894081236

Mega Music Warehouse

Available to Order In
Description

The STM-3 is very flexible, with gain adjustment from 45 to 75 dB, two balanced or unbalanced outputs, and available phantom supply input. Its low-distortion and low-noise performance make it the best choice, even when larger preamps could be used. The STM 3 supply input is single ended and operates from 24 Vdc. Operation from 12 Vdc is possible with a 6 dB reduction in headroom. Each output drives high or low impedance loads.


Features

  • Low-Noise, High-Gain, Mic Preamp
  • Adjustable Output Levels
  • High or Low Impedance Mic Inputs
  • Mic Input to Line Outputs
  • Two Balanced or Unbalanced Outputs
  • Phantom Capability
  • RF-Filtered Inputs

  • Specifications

  • Input:500 Ω balanced; 5 kΩ unbalanced
  • Phantom:24 Vdc; IEC 61938: 2013, Filtered
  • Output (2):+4 dBu 150 Ω balanced; -10 dBV unbalanced
  • Frequency Response:50 Hz to 30 kHz (± 1.5 dB)
  • Gain:Adjustable 45 to 75 dB
  • THD+N:< 0.05% (50 dB gain)
  • CMRR:> 50 dB (50 Hz to 20 kHz)
  • Residual Noise:< -70 dB (below +4 dBu, 150 Ω source)
  • Headroom:> 20 dB (24 Vdc supply); 14 dB (12 Vdc supply)
  • Phantom Power Input:24 Vdc @ 10 mA maximum
  • Ambient Operating Environment:0° C to 55° C
  • Power Requirement:GROUND-REFERENCED, 24 Vdc @ 25 mA
  • Dimensions:Height: 0.7 in. (1.7 cm); Width: 3 in. (7.6 cm); Depth 1.6 in. (3.9 cm)
  • Package Type:Cardboard Box
  • Package Dimensions:2 x 2 x 4 in.
  • Shipping Weight:0.195 lbs.
  • WEEE weight:0.145 lbs.
  • Pair With
    Service & Repairs

    Our Perth workshop offers expert servicing for guitars, drums, amps and more. From restringing to full rebuilds, most repairs are completed within a few days.

    Shipping & Returns

    We ship Australia-wide with reliable couriers, dispatching most orders within two business days. Unopened items can be returned within 7 days for a refund, while opened items may be eligible for store credit.

    Recommended

    Staff Picks

    Expert Advice

    Musicians on our team share trusted gear recommendations and hands-on tips, helping you choose the right products and get the best out of every brand.

    Learn More
    As seen on