JBL 260 user manual Subharmonic Synthesizer

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Section 4

 

 

 

 

DriveRack

 

 

 

®

 

 

Detailed Parameters

 

 

creating feedback. FIXED mode is used before the performance without any input signal. In LIVE mode, the live filters automatically detect and remove feedback during the performance. When all of the live filters have been used, they begin to round robin. Essentially this means that the first filter set is replaced where a new feedback is detected and notched out. This mode is useful because feedback frequencies may change as the microphone is moved, and/or as the characteristics of the venue change. Note that only the fixed filter settings will be stored with the new program. Live filters clear whenever the unit power cycled, the user loads a different program, or the user clears the filters using the ‘Clear all Filters’ function.

Type - Speech, Low Music, Medium Music and High Music

If Fixed or Live mode is chosen, the text will read “Type.” The options will be Speech, Music Low, Music Medium and Music High. These types pertain to the Q, sensitivity, and algorithm type. Values are; Speech (Bandwidth = 1/5 octave and Q=7.25) Music Low (Bandwidth = 1/10 octave and Q=14.5) Music Medium (Bandwidth = 1/20 octave and Q=29) Music High (Bandwidth = 1/80 octave and Q=116). Note: To guarantee that feedback is suppressed at lower frequencies, the AFS may place wider notch filters at these lower frequencies (below 700 Hz).

Number Fixed - 0-12

This will range from values 0-12. The total number of filters is the total number of filters available, and the number of live filters will be = Total Num Filters – Num Fixed. If this is changed before the filters are reset, then the filters will be reset one by one as the number changes. For example, if the number of Fixed filters goes down, then the last fixed filter set will be reset. Likewise, if the number of Fixed filters goes up (and thus the number of live filters goes down), then the last live filter set will be reset. The Fixed/Live filter usage will be indicated at the bottom of each page of the feedback elimination effect. ‘F’ indicates an available fixed filter, and ‘L’ indicates an available live filter. A blocked out F or L indicates a filter that is set, or in use.

Live Filter Lift (On/Off)

This parameter turns the Live Filter Lift on and off.

Lift After - 5 sec to 60 min

This parameter allows the user to setup the box so that the Live filters will automatically be removed after a set time (as indicated by the “Lift After” parameter). It ranges from 5 seconds to 60 minutes. This feature is useful if the microphone being used is moved or the characteristics of the venue change over time. As example; a filter placed minutes ago will not be presently preventing feedback. This feature removes unnecessary filters from the spectrum to increase sonic quality. If the feedback is still there (after the filter is removed), it will catch it and notch it out the same.

Total Number of Filters 1-12

This parameter selects the number of filters being used

4.3 Subharmonic Synthesizer

The Subharmonic Synthesizer module has been specifically optimized to enhance Bass audio material for use in a variety of professional applications, including nightclub and dance DJ mixing, theatre and film sound, music recording, live music performance and broadcasting. The Subharmonic Synthesizer module’s two separate bands of subharmonic synthesis provide the best combination of smoothness and control.

Sub-Harmonic Synth - On/Off

Turns the Subharmonic Synth module on and off.

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DriveRack® User Manual

 

 

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Page 37 Page 39
Contents DriveRack Important Safety Information Electromagnetic Compatibility Table of Contents DriveRackIntro Defining the DriveRack 260 System DriveRack 260 FeaturesIntroduction Service Contact Info DriveRackIntroductionIntroductionDriveRack Warranty Section Getting Started Rear Panel Connections Getting Started Front Panel Getting Started Quick Start ConnectionsGetting Started Section DriveRack DriveRack DriveRack DriveRack DriveRack DriveRack Functions Editing Functions Basic Navigation Modes Effect Button Array OverviewEditing Functions Navigating the Pre-EQ -GEQ and PEQ Navigating the Crossover SectionEditing Functions Navigating the Other Section Navigating the Dynamics SectionEditing Functions Navigating the Delay Section Navigating the Utility/Meters SectionEditing Functions Navigating the Wizard Section Navigating the I/O SectionFunctions Navigating Factory Programs Configuration FunctionsProgram Definition Selecting ProgramsEditing Factory Programs Navigation ModesConfiguration Functions Saving Factory Program Changes Store Program ReplacingSelect Configuration Functions Creating a User ConfigurationSignal Path Link/UnlinkComp Select RouteSelect Link/Unlink Mono DLY 20 MS 810 ms Unused Select Link/UnlinkSaving Configuration Changes Route Name Output Ch2Detailed Detailed Parameters Pre-Crossover EQ 28 Band Graphic or 9-Band ParametricFeedback Eliminator Subharmonic Synthesizer Gate Detailed Parameters Automatic Gain Control AGC Post-CROSSOVER PEQ Detailed Parameters Notch FiltersCrossover Compressor/Limiter Gain G -20 to +20 dB Threshold T -40 to +20dBuRatio R 1.0 to Inf1 Auto On/OffHold 0 to 500 m Sec per band or global Limiter On/OffAttack .01 to 200 m Sec per band or global Release 360 to 5 dB / Sec per band or globalAlignment Delay Input RoutingOutput Meters LCD Contrast / Auto EQ Plot Utility LCD Contrast Auto EQ PlotUtilities/Meters PUP Program/MuteZC Setup Power Up Modes PUP Program Stored PUP Mute CurrentZC Setup Panel Output Panel ZC-2 BoostCut Panel 1 ZC-3 Select a No ChangeSecurity Panel ZC-4 Switch 1 2 3 No ChangeSet Security Level Pre EQ Low Password Edit High Password Edit Med Password Press Store to ChangeProgram List/Program Change Password Enter PasswordSet 260 Device Level High Prog Change Mode Program List Prog Lock Program ListZone Controllers Panel INS a Comp o+LIM 0+ Output Trims NetPage Control Remote Control DriveWare PC Software GUISection Basic Operation DriveRack Remote Control ZC-Zone Controllers Zone Controller InstallationZC-1 & ZC-2 Zone Controller Wiring Section Diagram a Diagram B Diagram C Guide Hardware Application GuideMono 4-Way w/ Two Aux Zones SoftwareApplication Guide Stereo Tri-amp Application Guide Stereo w/ four Aux Zones Application Guide Stereo Bi-amp w/ Dual Delay Page DriveRackAppendix Appendix Factory Reset Power Up Quick Key OptionsAppendix Specifications Analog InputsLook out for Modes Adjust Crossover Output Gains gain structureAppendix Auto EQ Optimization Tips Appendix Crossover Diagrams Program List Appendix Program List/ Speaker Tunings/ Power Amp TuningsMain Speakers Power Amplifiers Appendix Block Diagram DriveRackAppendix aAppendix Input and Output Diagrams System Setup and Gain Structure Appendix Gain Level JumpersAppendix

260 specifications

The JBL 260 is a powerful and versatile loudspeaker that embodies the brand's renowned commitment to audio excellence. Known for its striking design and rich sound quality, the JBL 260 caters to both audiophiles and casual listeners alike, ensuring an immersive listening experience in any environment.

One of the standout features of the JBL 260 is its high-efficiency design, which allows it to deliver exceptional sound performance even in larger spaces. The speaker is equipped with a robust 6.5-inch woofer that provides deep, resonant bass, while a 1-inch soft dome tweeter ensures clear and detailed high frequencies. This combination results in a balanced sound signature that captures the subtle nuances of various music genres.

The JBL 260 employs advanced technologies such as Harman's proprietary Polished Surface Com Acoustic Design, which minimizes cabinet vibrations and resonances. This technology contributes to the overall clarity of the audio output, allowing for a more natural soundstage. Additionally, the Waveguide technology used in the speaker enhances the dispersion of sound throughout the room, ensuring that listeners can enjoy a consistent audio quality, regardless of their position.

Connectivity is another area where the JBL 260 excels. The speaker includes versatile connection options, such as Bluetooth, allowing users to stream music wirelessly from smartphones, tablets, or computers. This makes it incredibly easy to integrate the JBL 260 into modern home entertainment systems. With a range of inputs, including RCA and auxiliary ports, the speaker can accommodate various audio sources, making it a great choice for both casual listening and serious audio setups.

The design of the JBL 260 is both sleek and functional, with a modern aesthetic that fits seamlessly into any décor. Its sturdy construction not only contributes to its durability but also enhances sound quality by minimizing unwanted distortions. The speaker is available in various finishes, allowing users to choose a model that best suits their personal style.

In summary, the JBL 260 is a feature-rich loudspeaker that brings together advanced sound technologies, versatile connectivity options, and an attractive design. It stands out as an ideal choice for anyone seeking to elevate their audio experience, making it a solid investment for years to come.
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