The Pioneer SR-202 stands as a unique piece of audio technology from the 1970s, a solid-state reverberation amplifier designed to enrich sound with depth and spaciousness. Unlike standard high-fidelity systems of its time, the SR-202 employed an innovative double scatter system to create a more complex and immersive audio experience.
At the heart of the Pioneer SR-202 is its double scatter reverberation system. This sophisticated approach diverges from simpler single scatter methods by intricately merging and blending two audio channels. The system processes direct signals from a source, such as a turntable, after they pass through the preamplifier. Simultaneously, it generates reverberation signals by adding echo effects to the opposite channels. These direct and reverberated signals are then combined, creating a composite sound rich with echoes and reflections, far beyond the capabilities of typical stereo systems.
Pioneer SR-202 reverberation amplifier from the 1970s
Further enhancing the audio output, the SR-202 incorporates dual time delay circuits. These circuits are crucial for ensuring a stable and consistent reverberation effect, eliminating unwanted peaks or dips. This technology guarantees that the added reverberation is smooth and natural, providing listeners with a sound that is not only deep but also remarkably clear and brilliant.
The versatility of the Pioneer SR-202 extends to various audio applications. It can significantly enhance the naturalness of different sound sources, including vocals in home recordings, radio broadcasts, vinyl records, and magnetic tapes. Users can integrate the SR-202 with their existing amplifier setups, typically via tape monitor jacks, in multiple configurations. This allows for reverberation effects to be applied selectively – to the main speakers, to recorded audio, or to both simultaneously, offering flexible control over the auditory experience.
Beyond sound enhancement, the SR-202 also functions as a central control unit for recording setups. It can manage two tape recorders concurrently, enabling simultaneous recording, recording with added reverberation, and playback operations through simple switch controls. This feature underscores its adaptability and makes it a valuable tool for both playback and recording enthusiasts.
Connectivity is a key aspect of the Pioneer SR-202’s design. It is engineered to integrate seamlessly into virtually any audio system, offering users a wide array of connection options to achieve their desired sound effects. Moreover, reverting to a standard, non-reverberated audio output is straightforward, requiring just a single switch operation. This ease of use ensures that the SR-202 is not only powerful but also user-friendly in diverse listening environments.
Specifications of the Pioneer SR-202 Reverberation Amplifier:
The Pioneer SR-202 delivers notable technical specifications for its category:
- Input Level: 200mV (with a maximum capacity of 3V)
- Output Voltage: 330mV
- Harmonic Distortion: A low distortion rate of 0.2%, ensuring clean audio output.
- Frequency Response: Spanning from 20Hz to 35kHz, capturing a broad spectrum of audio frequencies.
- Signal to Noise Ratio: 65dB, indicating a clear signal with minimal background noise.
- Reverberation Time: Adjustable reverberation ranging from 1.9 to 3.2 seconds, allowing for varied spatial effects.
- Dimensions: Compact design at 300 x 115 x 250mm.
- Weight: Lightweight at 4.0kg.
- Semiconductor Components: Built with 11 transistors and 2 diodes, reflecting its solid-state technology.
For users seeking further details, resources such as the brochure and the instruction/owners manual are available for download, offering comprehensive insights into its operation and features.
In conclusion, the Pioneer SR-202 reverberation amplifier is a testament to Pioneer’s innovation in audio technology. Its double scatter system, coupled with user-friendly features and versatile connectivity, makes it a sought-after piece for vintage audio collectors and enthusiasts looking to add a unique dimension of sound to their audio systems. Its ability to enhance recordings and playback with rich, natural reverberation continues to be appreciated by those who value depth and brilliance in audio reproduction.
