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STM-LDA3 Studio Quality Microphone Preamplifier with phantom - 3 line outputs

STM-LDA3 Studio Quality Microphone Preamplifier with phantom - 3 line outputs

Radio Design Labs - Studio Quality Microphone Preamplifier with phantom - 3 line outputs



  • Studio‑Quality Microphone Preamplification
  • Three Distributed Line‑Level Outputs
  • Low‑Noise and Low‑Distortion Performance
  • Selectable Filtered Phantom Voltage
  • Adjustable Gain up to 60 dB
  • RDL's® Exclusive Dual‑LED VU Metering
  • Versatility of STICK‑ON® Compactness

The STM‑LDA3 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 gain trimmer allows precise output level adjustment. The output signal is available on three separate balanced line level outputs. Each output may be connected balanced or unbalanced.

RDL's exclusive low‑noise discrete preamplifier circuitry produces studio‑quality low‑noise performance in an economical preamplifier. Dynamic or condenser microphones may be used with the STM‑LDA3. Standard 24V 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 a +4 dBu output. The intensity of the green LED progresses from minimum to full intensity at +4 dBu. The adjacent red LED illuminates when the operating level exceeds +4. This makes the STM‑LDA3 easy to set up without any external test equipment, and operating levels may be monitored at the module.

Typical Performance:

Input:

1.2 kΩ balanced

Outputs (3):

+4 dBu, 150 Ω balanced

Gain:

40 to 60 dB (25 turn adjustable)

Frequency Response:

30 Hz to 20 kHz (+/‑ 0.2 dB)

THD+N:

< 0.1%

IMD:

< 0.1%

Noise:

< ‑70 dB (below +4 dBu @ 60 dB gain ‑ wideband)
< ‑80 dB (below +4 dBu @ 50 dB gain ‑ wideband)

Equivalent Input Noise:

< ‑130 dB (gain + residual noise below +4 dBu)

Headroom:

> 20 dB (above +4 dBu)

CMRR:

> 60 dB (100 Hz to 5 kHz)

Power Requirement:

GROUND‑REFERENCED, 24 to 33 Vdc @ 40 mA

Ambient Operating Environment:

0° C to 55° C


Studio-Quality Microphone Preamplification, Three Distributed Line-Level Outputs, Low-Noise Low-Distortion Performance, Selectable Filtered Phantom Voltage, Adjustable Gain up to 60 dB, RDL's® Exclusive Dual-LED VU Metering, Versatility of STICK-ON® Compactness, The STM-LDA3 designed use in quality commercial sound, broadcast recording applications 12 kΩ balanced input accepts wide variety of microphone input levels without loading professional low-impedance microphones multi-turn gain trimmer allows precise output level adjustment output signal available three separate balanced line level outputs output connected balanced unbalanced, RDL's exclusive low-noise discrete preamplifier circuitry produces studio-quality low-noise performance in an economical preamplifier Dynamic condenser microphones used STM-LDA3 Standard 24V phantom supplied to input when supply voltage connected to PHM terminal Optimum operating level set using RDL's unique dual-LED VU meter, located adjacent to terminal block green LED illuminates at 15 dB below +4 dBu output intensity of green LED progresses from minimum to full intensity at +4 dBu adjacent red LED illuminates when operating level exceeds +4 This makes STM-LDA3 easy to set up without any external test equipment, operating levels monitored at module, format converter Data/Installation

Mounting Accessories:

Mounting Kit - RU, ST and TX SeriesMB-1
Mounting Kit - RU, ST and TX Series

Kit to Mount ST, TX Series Modules on FP PanelMB-3
Kit to Mount ST, TX Series Modules on FP Panel

19" Universal Rack Chassis - RU, ST and TX SeriesRC-1U
19" Universal Rack Chassis - RU, ST and TX Series

19" Rack Mount for 3 RACK-UP Series ProductsRU-RA3A
19" Rack Mount for 3 RACK-UP Series Products

STICK-ON Mounting PlateSMK-12
STICK-ON Mounting Plate

STICK-ON Series 19" Mounting Rack - 10 modulesSR-10
STICK-ON Series 19" Mounting Rack - 10 modules

STICK-ON Series 19" Mounting Rack - 12 modulesSR-12A
STICK-ON Series 19" Mounting Rack - 12 modules

STICK-ON Series Mounting Rack - 7 modulesSR-4
STICK-ON Series Mounting Rack - 7 modules

STICK-ON Series 19" Racking System - 12 modulesSTR-19A
STICK-ON Series 19" Racking System - 12 modules

STICK-ON Series 19" Racking System - 10 modulesSTR-19B
STICK-ON Series 19" Racking System - 10 modules

Single Wide Enclosure - RACK-UP MountsUC-1
Single Wide Enclosure - RACK-UP Mounts

Double Wide Enclosure - RACK-UP MountsUC-2
Double Wide Enclosure - RACK-UP Mounts

Table Top Chassis for RU, ST and TX SeriesWDG1
Table Top Chassis for RU, ST and TX Series

STICK-ON DIN Rail Adapter - 1 moduleDRA-35S
STICK-ON DIN Rail Adapter - 1 module

STICK-ON DIN Rail Adapter - 6 modulesDRA-35S6
STICK-ON DIN Rail Adapter - 6 modules

Rear rack rail mounting kit for any STICK-ON moduleST-RRB1
Rear rack rail mounting kit for any STICK-ON module

General Accessories:

STICK-ON® Series Detachable Terminal BlockDTB
STICK-ON® Series Detachable Terminal Block

Accessory Mounting SystemAMS
Accessory Mounting System

Related Products:

FP-MP1
Studio Quality Microphone Preamplifier with Phantom - Terminal block & XLR

STM-DA3
Microphone Level Distribution Amplifier - 1x3

STM-1
Microphone Preamplifier - 50 dB Gain

EZ-MPA1
Microphone Preamplifier - Stereo Output with Compressors

EZ-MPA2
Dual Microphone Preamplifier - Stereo Output with Compressors

HR-MP2
Dual Microphone Preamplifier

HR-MP2A
Dual Microphone Preamplifier

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Copyright © 2010 Radio Design Labs, Inc. RDL, Radio Design Labs, the RDL logo, STICK-ON, RACK-UP and the Rack-Up logo are registered trademarks of Radio Design Labs, Inc. Flat-Pak, RCX, SourceFlex, SupplyFlex, Sure-Lok, TX, ULTRASTYLE, and Specialists in Practical Precision Engineering are trademarks of Radio Design Labs, Inc. All other trademarks are the property of their respective owners. Typical Performance reflects product at publication time exclusive of EMC data, if any, supplied with product. Date last modified: June 29 2010

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