Control Elements

GND Lift Switch (Rear Panel)

The GND Lift switch separates internal ground from chassis ground. The switch can be activated to eliminate ground loop humming which may occur if the MixDreamXP is connected to units with a different ground potential. The switch should normally be in the GND position to maintain the shielding effect of the metal housing.

GND LIFT

Applications and Modes of Operation

Summing

Tracks destined for analog summing are routed from the DAW to the MixDreamXP via A/D converters. Identical converters are ideal to exclude level and sound differences.

Although you may often wish to sum more than 16 tracks, a general recommendation to reduce track numbers is to route those tracks to a common output bus of the sequencing program which are not played back simultaneously in your arrangement. This way you avoid digital summing and your production bene- fits from the full potential of 100% analog summing.

With mono signals one should switch these to mono mode to confine them to single D/A converter, thereby avoiding the waste of having to use a D/A pair for one mono track (see „Mono Switches“ on page 10). IMPORTANT: In the DAW such signals must be panned hard left or right.

Summing of Subgroups

To reduce track numbers, there are two other options besides the above mentioned „Summing“ tip:

Well, you could buy additional MixDreamXP (which we confess would make us happy—and we‘re sure would not disappoint you) or sum your grouped tracks with the MixDreamXP itself.

For example, if you‘ve done a chorus backup in 16 solo tracks, you can adjust your panning in the DAW and the MixDreamXP sums a stereo mix which is recorded again—the sound benefits of analog summing are larger than the disadvantage of a further A/D-D/A conversion.

MixDream XP

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Sound Performance Lab Model 2591 manual Applications and Modes of Operation, GND Lift Switch Rear Panel, Summing
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Model 2591 specifications

The Sound Performance Lab Model 2591 is a cutting-edge audio processing unit that combines advanced technology with user-friendly design to deliver exceptional sound quality and versatility. As an integral part of modern audio production, the Model 2591 caters to a diverse range of applications, from studio recording to live sound reinforcement.

One of the standout features of the Model 2591 is its high-definition audio processing capabilities. The unit boasts a sampling rate of up to 192 kHz and a bit depth of 24-bit, ensuring that audio fidelity is preserved at the highest level. This allows for intricate detail and a wide dynamic range, making it ideal for capturing and reproducing everything from delicate acoustic instruments to powerful vocal performances.

The Model 2591 incorporates state-of-the-art algorithms to provide real-time audio analysis and processing. With its sophisticated equalization options, the device enables engineers to sculpt sound with precision. The unit offers multiple EQ bands, each with fully adjustable frequencies and Q factors, allowing for tailored adjustments that enhance the clarity and presence of any audio signal.

Another notable feature of the Model 2591 is its comprehensive dynamics processing capabilities. The built-in compressor and limiter sections are designed to provide transparent control over audio levels, preventing unwanted distortion while preserving the natural character of the sound. These tools are particularly beneficial in live sound environments where maintaining consistent levels is crucial.

Additionally, the Model 2591 features an intuitive user interface that simplifies the operation of its complex functions. The color LCD screen provides visual feedback, making it easy to navigate through settings and parameters. User presets allow for quick recall of favorite settings, enhancing workflow efficiency in both studio and live settings.

Connectivity is another strong suit of the Model 2591. The unit includes balanced XLR and TRS inputs and outputs, ensuring compatibility with a wide array of audio devices. Digital connectivity options such as AES/EBU and S/PDIF further extend its utility in modern digital audio workstations.

In summary, the Sound Performance Lab Model 2591 exemplifies a perfect blend of technology and practicality. With high-definition audio processing, advanced EQ and dynamics capabilities, an intuitive interface, and versatile connectivity options, it stands as a powerful tool for audio professionals seeking to elevate their sound performance to new heights. Whether in the studio or on stage, the Model 2591 is engineered to meet the demands of discerning audio enthusiasts.
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