Section 4

DriveRack

®

 

 

 

Detailed Parameters

 

 

 

 

 

compression to choose from (1 being almost hard knee and 10 being the softest (most gradual) knee). This lets you choose the exact knee that is needed for the dynamic effect you are looking for. If you are unsure where to set this parameter, a setting of 4 is a great place to start.

Threshold (T) -40 to +20dBu

Threshold is the signal level at which the unit starts to compress the signal. If the level is set to -10 dBu, than any signal larger than -10 dBu is compressed while any signal that has a level that is lower than -10dBu is left at the same signal level. Light compression is where only the loudest parts of the signal go over the threshold. Very heavy compression can be achieved by setting the threshold low enough that almost the entire signal content is over the threshold. For most signals the most natural compression is achieved when most of the signal content remains just below the threshold and only the peaks cross the threshold.

Ratio (R) 1.0 to Inf:1

Ratio is the amount the unit reduces the signal level of the sound that is above the threshold. A 2:1 ratio means that if the incoming signal is 2dB over the threshold the unit will compress the signal, and outputs a signal that only goes 1dB over the threshold. For light compression choose a lower ratio, while heavy compression requires a higher ratio. A setting of Inf:1 makes the compressor act as a limiter.

Gain (G) -20 to +20 dB

This parameter is used to compensate for the gain lost during compression. By using heavy compression on a signal and then boosting the signal with the output gain, the user can create a signal that sounds much louder than it actually is.

Auto On/Off

When Auto Mode is on, the 260 automatically sets the Attack, Hold, and Release times for the signal. The auto mode constantly adjusts these parameters in real time for optimum performance. You will find that for most applications, not only is using the auto mode faster and easier but by letting the unit constantly tweak these parameters for you will result in a better end result (try and hit a snare exactly the same for three minutes).

Attack 0.1 m Sec to 200 m Sec

Attack is how fast the compressor starts to compress the signal after it passes the threshold. Fast attack is useful when dealing with lots of fast transients. The attack control is not active when in auto mode.

Hold 0 to 500 m Sec

Hold is the time the 260 remains in compression after the signal has dropped below the threshold. A longer hold time is useful in smoothing out the sound when compressing several fast peaks that are fairly close together in time. In general some hold time helps to make the compression sound more natural but too much can over compress your signal making for an unwanted drop in level. The hold control is not active while in auto mode.

Release 360 dB / Sec to 5 dB / Sec

Release is how fast the 260 comes out of compression. The release is in dB per second. For example, if release is set to 5 dB /sec, and the signal is at 10dB of gain reduction, the release time is 2 seconds. Too fast a release time can result in an audible volume jump, while too slow a release time can result in compression of signal that is not above threshold. This can cause volume drops in your signal that may not be desired. The release control is not active while in auto mode.

DriveRack® User Manual

 

35

 

 

Page 43
Image 43
JBL 260 Threshold T -40 to +20dBu, Ratio R 1.0 to Inf1, Gain G -20 to +20 dB, Auto On/Off, Attack 0.1 m Sec to 200 m Sec

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.