Precision Audio and AV Interface Products

Radio Design Labs

ST-PA2 2 W Mono Audio Amplifier - 8 Ω

  • 2 Watts RMS into 8 Ω
  • +12 dBu Into 600 Ω
  • Quality Utility Amplifier
  • Intercom Driver
  • Music-On-Hold Driver
  • Overview
  • Specifications
  • Related Products
  • Accessories
  • Downloads
  • How to Buy
  • Product Series
  • Dimensions

The ST-PA2 features a single, unbalanced audio input, a gain control, and two outputs. The first output is designed to deliver a clean 2 watts RMS into an 8 Ω speaker. The second output is intended to drive 600 Ω transformers, typically on equipment inputs. This makes the ST-PA2 uniquely suited to applications such as music-on-hold inputs on telephone systems which may have either 8 Ω or 600 Ω inputs. If desired, both outputs may be used at the same time.

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Applications

Input:
Unbalanced 10 kΩ
Input Level:
-15 dBV minimum (for rated power output)
-20 dBV minimum (for 1 watt RMS into 8 Ω
Frequency Response:
35 Hz to 30 kHz (8 Ω ± 1.5 dB)
20 Hz to 30 kHz (600 Ω ± 0.5 dB)
THD+N:
< 0.75%; 0.5% typical
Noise:
< -80 dB (8 Ω @ 2 W RMS)
< -70 dB (600 Ω, referred to +4 dBu)
Outputs (2):
1 @ 8 Ω, 2 watts RMS maximum
1 @ 600 Ω, +12 dBu maximum
Ambient Operating Environment:
0° C to 40° C
Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 250 mA
Package Type:
Cardboard Box
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
0.18 lbs.
WEEE weight:
0.13 lbs.
Tariff code:
8543.70.9910

Documents:
Format
PDF
CAD Files:
Format
High Res Images:
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Declaration of Conformity:
Format
PDF
A&E Specifications:
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STICK-ON SERIES

STICK-ONs are the original application-specific modules for the A/V, recording and broadcast industries. Module functions include signal detection, switching, pre-amplification, format conversion, line driving, power amplification, mixing, distribution, gain control, equalization, routing and more. Each STICK-ON is an ultra-compact module engineered to provide higher performance and longer life than other industry products. STICK-ON modules are solid encapsulated hybrid circuits in durable industrial black plastic enclosures (1.55", 3.94 cm x 3", 7.62 cm x 0.65", 1.65 cm) with clear bold white lettering for the terminal block connections, recessed trimming controls and switches.

Since RDL first originated application-specific modules, STICK-ONs have led the industry in economical, high-performance and cost-effective long life solutions in system designs. Multiple STICK-ON modules can be interconnected to form all or part of an A/V system. A single STICK-ON module may be mounted right where its function is needed, often to add an input, output, or gain adjustment to existing equipment. STICK-ON modules allow customizing an A/V system to precisely match users’ needs. Adding STICK-ONs to an existing system can extend system life by adding updated features, resulting in considerable cost savings. A complete range of backboard and rack mounting options is available for systems comprised of multiple STICK-ON modules.

The technology used in STICK-ON modules has been regularly updated over the years to insure industry-leading performance. Functions and features provided by STICK-ONs, since their introduction, are still available today. This continuity in product offering and support makes STICK-ON modules the preferred long-term resource for system design solutions. STICK-ON SERIES modules are designed and manufactured in the U.S.A.

ST-PA2 ST-PA2