Surround Processor Power Supply | Sound Performance Lab 9215

Working on established inter-channel phase principles, the STEREO WIDTH control increases the subjective soundstage width of any stereo source. The off-centre signals of the stereo source are detected and fed back phase inverted to the opposite channel. This effect can be applied to overall mixes as well as to single instruments. Very interesting is the spreading of the stereo image of overhead mics of drums-sets, choruses or horn sections.

The Surround Processor section is independent from all other processes and is not affected by the ACTIVE buttons or PROCESS DEPTH controls. To deactivate the effect of this section, the STEREO WIDTH control should be set fully counter clockwise. In standard applications a STEREO WIDTH setting above the 2 o’clock position is not recommended for complete mixes. However, such settings can produce some very interesting special effects for single instruments.

Special care has gone into the design of the power supply of the VITALIZER – the better it is, the better the system works. In an audio system, this translates into better sound quality, lower noise and lower distortion.

The power supply is based around a 15 VA toroidal transformer and is designed to minimise induced hum and noise due to the lack of an air-gap.

The primary voltage may be selected between 230 V / 50 Hz and 115 V / 60 Hz by means of a recessed slide switch on the rear panel and a rear-panel ground-lift switch is fitted for use where ground loops are causing hum problems. When the Gnd Lift switch is set to off, the circuit ground is isolated from the chassis ground.

The detachable power cord is a standard 3-wire type fitted with an IEC mains connector; the transformer, power cord and mains connector have VDE, UL and CSA approvals.

The fuse has a value of 315 mA for the primary voltage.

On the secondary side of the power supply, an RC combination is used to filter out noise and hum voltages. Both half-waves are smoothed with 4000 microF capacitors in the positive and nega- tive supply path, and both lines use precision voltage regulators for optimum stability. Deviations of only a few millivolts can impair audio quality, introducing artifacts such as loss of stereo imaging or a diffused sound character.

Control Elements

Surround Processor

Power Supply

9215 specifications

The Sound Performance Lab 9215 is a cutting-edge audio processor that has garnered attention in professional recording studios and live sound applications alike. Known for its high-quality sound manipulation capabilities, the 9215 is designed to meet the rigorous demands of modern audio production.

One of the standout features of the 9215 is its innovative approach to dynamic processing. It combines several processing algorithms that allow users to achieve incredible detail and clarity in their sound. The unit is equipped with a high-performance DSP (Digital Signal Processor) that ensures precision and low latency, making it suitable for both real-time monitoring and post-production applications.

The 9215 includes a versatile set of controls, making it user-friendly for both seasoned audio engineers and newcomers. Its intuitive interface allows for quick adjustments, with clearly labeled parameters that facilitate easy tweaking of sound characteristics. Control over threshold, ratio, attack, and release settings ensures that users can finely tune their audio to fit the style and context of their projects.

Another remarkable feature of the 9215 is its advanced metering capabilities. With high-resolution displays, users can monitor levels and gain reduction in real time, which aids in achieving optimal sound quality. The metering system helps professionals maintain a clear visual representation of their audio signal dynamics, ensuring that they stay within desired parameters throughout the mixing process.

The 9215 employs advanced algorithms that enhance audio fidelity without introducing unwanted artifacts typically associated with dynamic processing. This technology is particularly beneficial for genres requiring intricate soundscapes, where maintaining clarity is paramount. Additionally, the unit offers an array of presets tailored to various styles of music, making it easier for users to find a starting point for their sound design.

Another significant characteristic of the 9215 is its compatibility with various audio formats and protocols, ensuring it can integrate smoothly into any setup. It supports digital and analog inputs and outputs, enhancing its versatility in both studio and live environments. This feature, coupled with rugged build quality, makes the 9215 not just a tool for sound shaping but a reliable companion in the audio production process.

Overall, the Sound Performance Lab 9215 is a powerful audio processor that combines sophisticated technology with user-friendly operation, setting a new standard for dynamic processing in the audio industry. Its range of features and capabilities makes it an essential piece of equipment for any serious audio engineer or musician seeking to elevate their sound.