When the tubes are active you can use the Attenuator controls to reduce the output level for each channel separately. Level changes due to processing can be compensated. The control characteristic has a very fine resolution before 0 dB (fully clock- wise).

The tube output section can be switched into a Limit mode for each channel separately. All levels exceeding 12 dB will be softly limited.

Limiting takes place due to the full saturation of the tubes in conjunction with a diode network. You may find that the top end is getting a bit duller due to the limiting. Use the High EQ to compensate for this. The Limit mode works very efficient when processing drums. To do so, insert the Tube Vitalizer into the drum-subgroup. Leave the unit in Attenuator mode when proces- sing complete mixes.

The VU In/Out switch lets you choose between either input or output levels to be displayed on the VU meters. When the status- LED is not illuminated the VU meter will show the input levels. On the other hand an illuminated status-LED indicates that the output level is displayed. The 0 dB mark on the VU is internally calibrated to +6 dB.

Control elements

13Attenuator

14Atten./Limit

15VU In/Out

The Tube Vitalizer features a special relay circuitry that slowly 16 Tube Status builds up the 250 volts over a period of 45 seconds. Thereby the

lifetime of the tubes is increased by up to 4 times. In pre-maste- ring this circuitry garantees a reproducable sound for a long time. The tubes in use are E 83 CCs. The Warm Up-LED (red) illuminates after the main power has been switched on. After 45 seconds it switches to Active mode (orange-LED). If the Activate Tubes switch is pressed when switching the power on you will have no output signal until the Active mode is on. In the warm-up period you should not activate the tube section. The solid-states outputs are active immediately after mains voltage has been turned on.

TUBE VITALIZER

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Sound Performance Lab 9530 manual Attenuator Atten./Limit VU In/Out

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.