Sound Performance Lab 2595 manual Connections, Operation

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Power and Signal Connections

Be very careful to check that the rear chassis power selection switch is set to the correct local line voltage position (either 230 or 115 volts) before using the unit!

Before connecting any equipment make sure that any machine to be connected is turned off (on the Passeq rear panel the power switch must be pushed down).

An AC power cord is included for connection to the standard 3-prong IEC connector. The trans- former, power cord and IEC connector are VDE, UL and CSA approved. The AC fuse is rated at 500 mA for 220/240 V and 1 A for 110/120 V.

Connections

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Operation

Power

The Passeq is turned on and off with the rear Power switch. The blue LED in the center of the front indicates operating status.

Channel Switches

Two illuminated switches in the center of the front activate or bypass the left or right channel.

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Layout of Operational Elements

nitially one might be struck by the circular arrangement of the Passeq’s control elements. As unusual as this first appears, the more understandable and clearer this layout becomes when one looks closer.

Along with the fact that we simply like this design from an aesthetical view, this layout makes even more sense with respect to the idea of the passive EQ concept itself: In a passive design, filters for boosting and cutting a frequency range are physically separated from each other. Reflecting this fact, the elements left of the central output control perform level cuts, while controls to the right of this central regulator serve as signal boost controls. Cut and boost switches are positioned next to the appropriate frequency band selector and frequency bands are arranged from low to high from the standpoint of both physical and frequency range layout—all in all a clear overall functional picture though without much in the way of boring routine.

The most powerful passive EQ system ever made

The Passeq is the first passive EQ which provides three separate frequency ranges for both boost and cut stages. One famous, if not the most famous, passive design was the Pulteq EQ from the decades of the 1950’s and 60’s. This EQ sported two frequency bands (low and high frequencies, or LF and HF), and had only a few switchable frequencies to offer. In contrast, the Passeq has 12 switchable frequencies per band, totaling 36 boost and 36 cut frequencies. Boost and cut frequencies are NOT identical, thus the resultant 72 frequencies per channel offer an enormous choice for the most elaborate EQ curves (please refer to the next chapter, “Frequency Layout”).

The Passeq offers for the first time passive filter control possibilities extending throughout the relevant audio frequency range—and that with an unheard of abundance of filter choices.

Passeq

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Contents Manual Weee Registration 973 349 88 Manual Passeq, ModelSPL electronics GmbH Sohlweg Contents Important Safety Information Rack Mounting Symbols and NotesHook Up Introduction Special FeaturesSingle Core Coils Advantages of Passive FilteringPassive Filters with 120 Volt Makeup Amplifiers Filter TypesIntermediate Stages of the Supra Components Volt Makeup AmplifiersSPL Supra Op-Amps Input Stages of the Supra ComponentsConclusion Other FeaturesLundahl Transformers Selector Please refer to Power switch and voltageRear Panel IPU/% DPME  Operation ConnectionsBoost Cut Frequenz One Coil per Filter, one Core per CoilAllocation of Frequencies Frequency Table/per BandBoost HF Cut LF-LMF Cut MF-MHF Cut MHF-HF Boost LFMF-MHF Cut and LMF-MHF Boost Operational ElementsLF-LMF Cut and LF Boost Output Control HF Boost Q Settings with the Proportional Q PrincipleMHF-HF Cut and HF Boost MHF-HF CutEQ Yin & Yang Recommendations on using EqualizersBasic Approaches and Working Techniques Boosting harmonic frequency levels First control levels, then apply EQFirst cut, then boost Reducing bleed within an instrument‘s frequency rangeSplitting frequency bands to reduce masking effects Cutting fundamental levelsEmphasis of an instrument‘s main frequencies Mix-or not?Improves the presence of bass lines Classical instruments and their frequencies Sound Correction and Sound Design Basics of Frequency FilteringFrequency and Energy Tone and SoundBandwidth Frequency FiltersShelf Filters Peak FiltersPassive EQs EqualizerGraphic EQs Active EQsParametric EQs Specifications Power SupplyGuarantee & Product Registration Engineer Artist Tracks/Groups Album Date Title Copy Master Recall SettingsManual Passeq

2595 specifications

The Sound Performance Lab 2595 is a cutting-edge audio processor designed to elevate mixing and mastering workflows for both professionals and enthusiasts alike. This device stands out in the competitive landscape of audio equipment, thanks to its blend of innovative technologies, high-quality sound processing, and user-friendly features.

One of the main features of the 2595 is its dual-channel architecture. This allows users to process two audio signals simultaneously, making it an ideal choice for stereo applications. Designed for flexibility, the device can be used for various purposes, including mixing, mastering, and live sound reinforcement. The 2595 boasts an intuitive layout, making it easy to navigate its range of functions and settings, even for those who may be new to audio processing.

The heart of the 2595 lies in its advanced digital signal processing (DSP) capabilities. The device is equipped with high-resolution converters, allowing for pristine audio quality with minimal latency. This ensures that the integrity of the original sound is maintained, which is a crucial aspect for any serious sound engineer or musician. Additionally, the built-in algorithms are designed to enhance the audio signal intelligently, providing users with options for dynamic range control, spectral processing, and various filtering techniques.

Another notable characteristic of the Sound Performance Lab 2595 is its extensive connectivity options. The device includes both analog and digital I/O, making it compatible with a wide range of audio sources and studio environments. This versatility is essential for professionals who often work with various formats and formats, ensuring that the 2595 can seamlessly integrate into any setup.

The user experience is further enhanced by the inclusion of a bright, user-friendly display that provides real-time feedback on processing parameters. This feature allows users to make precise adjustments quickly, facilitating a more efficient workflow. Furthermore, the 2595's robust construction ensures that it is built to withstand the rigors of both studio and live applications, making it a reliable choice for any audio professional.

In conclusion, the Sound Performance Lab 2595 represents a significant advancement in audio processing technology. With its dual-channel processing capability, high-quality DSP, extensive connectivity options, and user-friendly interface, it caters to a wide range of audio applications while maintaining exceptional fidelity and performance. This makes the 2595 a valuable tool for anyone looking to achieve professional-grade sound in their projects.
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