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

Data/Installation

Mounting Accessories:

MB-1 Mounting Kit - RU, ST and TX Series	MB-3 Kit to Mount ST, TX Series Modules on FP Panel	RC-1U 19" Universal Rack Chassis - RU, ST and TX Series
RU-RA3A 19" Rack Mount for 3 RACK-UP Series Products	SMK-12 STICK-ON Mounting Plate	SR-10 STICK-ON Series 19" Mounting Rack - 10 modules
SR-12A STICK-ON Series 19" Mounting Rack - 12 modules	SR-4 STICK-ON Series Mounting Rack - 7 modules	STR-19A STICK-ON Series 19" Racking System - 12 modules
STR-19B STICK-ON Series 19" Racking System - 10 modules	UC-1 Single Wide Enclosure - RACK-UP Mounts	UC-2 Double Wide Enclosure - RACK-UP Mounts
WDG1 Table Top Chassis for RU, ST and TX Series	DRA-35S STICK-ON DIN Rail Adapter - 1 module	DRA-35S6 STICK-ON DIN Rail Adapter - 6 modules

General Accessories:

DTB
STICK-ON® Series Detachable Terminal Block

AMS
Accessory Mounting System

Related Products:

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

Copyright © 2008 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: November 20 2008