Sound Performance Lab 9530 manual Process Level, Diagram

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Control elements

Process Level

The Process Level control determines the ratio between Bass and Hi-Mid Freq. to the original signal. It also determines the damping intensity of dominant mid frequencies. This allows rapid

7 adaptation to the loudness curves (Fletcher-Munson curves, ‘curves of equal loudness’, see below). Practical adjustements range between 3 to 7.

The human ear perceives the audio frequency spectrum at varying sound pressure levels very differently. Perception is by no means ‘linear’. The Tube Vitalizer alters the frequency spectrum in such a way that the balance is maintained between all frequency ranges even at varying monitor volumes. For the human ear, the sound is more pleasant and easier to perceive than the original. In other words, increasing the Process Level value also increases the intensity of the Hi-Mid Freq. filter and the Bass filter, whilst domi- nant mid frequencies are damped by amplitude-controlled phase shiftings. This improves the perception of loudness, clarity and the bass punch, i.e. the strength and fullness of the audio signal.

Measurement 5:

Bass = Soft

Bass-LC filter = Active

Hi-Mid Freq. = 3 kHz

Process Level = 0 to 10

Diagram:

Fletcher-Munson curves, »curves of equal loudness«

threshold of pain

 

loudness level

sound pressure level in dB

frequency in Hertz

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TUBE VITALIZER

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Contents Tube Vitalizer Tube Vitalizer ManualContents ApplicationsHermann Gier Foreword Thanks Operation safetyYour Sound Performance Laboratory-Team Introduction Tube VitalizerConnections Applications Recording StudioFilm & Video Post Production Tape DuplicationBroadcast Improving time-compressed audio Vitalizer on ‘Malcom X’Process Level to zero First stepsDrive to zero Center-position Bass Sound to zero High Freq. to zeroSets the operating level of the Vitalizer filter network Control elementsBass Bass LC Filter Bass CompHi-Mid Freq MeasurementBass = Soft Bass-LC filter = Active Process Level = Max Bass = Tight Bass-LC filter = Active Process Level = MaxBass = Soft Bass-LC filter = Off Process Level = Max Diagram Process LevelHigh Freq High Comp High Freq. = Intensity = LC Filter = On/OffAttenuator Atten./Limit VU In/Out Power supply Specifications Subject to change without noticeWarranty

9530 specifications

Sound Performance Lab (SPL) 9530 is a state-of-the-art audio processing unit designed to meet the demands of both professional audio engineers and avid music enthusiasts. As an integral part of the SPL product lineup, the 9530 exemplifies the company's commitment to high-fidelity sound and innovative audio technologies.

One of the standout features of the SPL 9530 is its advanced equalization capabilities. The device employs a fully parametric equalizer that allows users to finely tune their audio environment. With up to 30 bands of EQ control, the 9530 provides unparalleled precision, enabling sound engineers to sculpt audio with meticulous detail. The system includes both boost and cut functionalities, giving users the power to address specific problem frequencies in their mixes.

The SPL 9530 also incorporates sophisticated dynamics processing. With its built-in compressor and limiter, the device can manage the dynamic range of audio signals effectively. This feature is particularly useful for live performances and studio recordings, where maintaining consistent audio levels is crucial. The compressor's transparency allows artists to achieve a polished sound without sacrificing the natural characteristics of the audio.

Another exceptional characteristic of the SPL 9530 is its compatibility with both analog and digital audio formats. The unit features high-quality A/D and D/A converters that ensure the audio signal remains pristine throughout the processing chain. This versatility allows for seamless integration into various setups, whether in a professional studio or a live sound environment.

Additionally, the 9530 incorporates innovative SPL transformer technology, which provides superior signal integrity and minimizes distortion. This design ethos resonates throughout the entire unit, ensuring that audio quality remains uncompromised at every stage of processing.

The SPL 9530 also supports remote control options, allowing users to adjust settings from a distance, adding convenience to complex audio setups. The intuitive user interface, complete with clear LED indicators, makes operation straightforward, even during high-pressure situations like live performances.

In summary, the Sound Performance Lab 9530 is a comprehensive audio processing solution featuring advanced EQ and dynamics processing, compatibility with multiple formats, and superior sound quality. Whether for studio use or live applications, the SPL 9530 stands as a crowning achievement in modern audio technology, delivering flexibility and exceptional performance for any audiophile or sound professional.
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