The secret to making speakers sound great lies with the crossover you use. With the dbx 234xs Crossover you'll get great performance, ultra low-noise, rugged reliability and four decades of dbx knowledge and expertise in building the world's finest processors. The 234xs uses precision filters to separate the audio signal and direct the correct frequencies to your loudspeaker drivers. By directing only the specific frequency bands to each speaker driver the 234xs leaves your amplifiers free to use their full power on the usable signal eliminating distortion and giving your PA system a cleaner and better sound.
CrossOver 10 Pro
The dbx 234xs is a dual channel crossover with all the features you would expect from a professional product. It features Linkwitz-Riley 24dB per octave filters, independent output gain controls for level matching, output phase inversion, 40 Hz low cut filter, and optional mono summing of the low frequency (subwoofer) output. Everything in the design exudes great precision from the solid "click" controls to the high quality XLR inputs and outputs.
You only need to set this setting to the "In" position when the desired crossover frequency is higher than what can be selected from the front panel controls. When the X10 button is switched "In", the set x-over ferquency will be 10 times higher than what is indicated on the screening around the "XOVER FREQ" potentiometer.
A car audio system sounds best when everything is set correctly and in optimal working order. Unbeknownst to many, integrating a crossover frequency in your vehicle can make your sound system even better. So what are crossover frequencies? How do they work? And how would you set a crossover frequency for your car audio system?
While this may all seem a bit confusing on the surface, a detailed explanation of these terms will make it much easier to understand why crossovers make such a notable difference in our car audio systems.
In the simplest terms, a crossover is a frequency at which sound transitions from one audio source to another, often a speaker. In a passive speaker, the electronic crossover components determine the sound transitions from the speaker channels to a subwoofer.
Each speaker in your car audio system has a crossover frequency that is generally set in the AV receiver by a processor. This processor filters low-frequencies away from the speaker channels and redirects them to the subwoofer channel. This process is referred to as digital bass management, and it creates a seamless blend of sound between the subwoofer and the speaker channels.
In many cases, crossover frequencies are set for each channel by the AV processor during auto-calibration. However, the crossover frequency can also be set manually when further optimization is necessary.
Keep in mind that there is not a perfect set of crossover frequencies that work for every speaker in every car. In nearly all situations, crossovers will require some form of adjusting to optimize their effectiveness.
Understanding how to properly set a crossover frequency for your car audio system begins with a comprehensive knowledge of how your audio system is configured. The type of receiver and speakers you have will have a direct impact on your crossover frequency. Though we have outlined the basic steps, keep in mind there may be other recommendations that vary from those mentioned above. At the end of the day, fine-tuning is the most important element of a successful crossover. Let these recommendations be a general guideline, but note that the final settings are dependent upon your fine-tuning and the quality of sound you find most ideal.
The Body Solid Pro Clubline Cable Crossover is the pinnacle of versatility in strength training. Offering an unlimited number of exercises, cable crossover machines are a staple to any gym, health club, fitness center, or workout facility.
Premium commercial components ensure dependability and reliability even in heavy use, high-traffic gyms and clubs. Stable, solid and smooth, the Body Solid Pro Clubline cable crossover machine is an essential piece for any workout facility.
Figure 2. Crossover patterning phenomena. The proper placement of crossovers along the chromosome is governed by three patterning phenomena. Homologous chromosomes are shown in blue and orange, with crossovers between them shown in green. Loss of assurance results in a lack of crossing-over between a pair of homologs; loss of interference results in two crossovers being placed in close proximity to one another; loss of the centromere effect results in centromere-proximal crossovers. These phenomena can lead to a failure in proper chromosome segregation, leading to non-disjunction.
Figure 3. Chromatid interference. Each panel illustrates two crossovers on one bivalent, with each line representing one double-stranded DNA chromatid. The first (leftmost) crossover is the same in all cases, occurring between the two inner chromatids. (A) A 2-chromatid DCO. (B) Two possible 3-chromatid DCO configurations. (C) A 4-chromatid DCO. If there is no chromatid interference, the ratio of 2:3:4 should be 1:2:1.
Figure 4. Levels of crossover assurance. Assurance is enforced at three levels. DSB-1 and DSB-2 form a checkpoint in C. elegans that ensures that sufficient double-strand breaks (DSBs, white stars) are formed to generate an obligate crossover. In mouse, IHO1 plays a similar role. From this pool of DSBs, inter-homolog recombination is promoted by Red1, Hop1, Mek1, and Pch2 to ensure that recombination intermediates (light green stars) engage with the homologous chromosome to form crossover precursors (dark green stars). The driving force to generate crossover precursors may be aggregation of ZMM proteins at recombination nodules or mechanical stress that must be relieved by crossover formation. Efficient crossover maturation (dark green X) is ensured by the ZMM proteins that define the class I crossover pathway.
Figure 5. Suppression of crossovers near the centromere. The exclusion of crossovers near the centromere seems to be enforced at two levels. Crossover suppression in the highly repetitive alpha heterochromatin has been shown to be a result of the prevention of DSBs either through local chromatin organization (in S. cerevisiae) or the inactivation of Spo11 (in S. pombe and A. thaliana). Crossover suppression in the less repetitive beta heterochromatin and the proximal euchromatin has been shown to be regulated through Bloom syndrome helicase/Sgs1 (in D. melanogaster and S. cerevisiae) and dependent on distance from the centromere (represented by a centromere effect signal shown in red). Homologous chromosomes are shown in blue and orange with dark red lines in the pericentromeric region representing alpha heterochromatin. Light and dark green stars represent repair intermediates and crossover precursors, respectively.
Meiotic crossovers are limited in number and are prevented from occurring close to each other by crossover interference. In many species, crossover number is subject to sexual dimorphism, and a lower crossover number is associated with shorter chromosome axes lengths. How this patterning is imposed remains poorly understood. Here, we show that overexpression of the Arabidopsis pro-crossover protein HEI10 increases crossovers but maintains some interference and sexual dimorphism. Disrupting the synaptonemal complex by mutating ZYP1 also leads to an increase in crossovers but, in contrast, abolishes interference and disrupts the link between chromosome axis length and crossovers. Crucially, combining HEI10 overexpression and zyp1 mutation leads to a massive and unprecedented increase in crossovers. These observations support and can be predicted by, a recently proposed model in which HEI10 diffusion along the synaptonemal complex drives a coarsening process leading to well-spaced crossover-promoting foci, providing a mechanism for crossover patterning.
A hallmark of sexual reproduction is the shuffling of homologous chromosomes by meiotic crossovers (COs). COs are produced by the repair of DNA double-strand breaks through two biochemical pathways: Class I COs are produced by a meiotic-specific pathway catalyzed by the ZMM proteins (Saccharomyces cerevisiae Zip1-4, Msh4-5, and Mer3; HEI10 is the Arabidopsis homolog of Zip2) and represent most COs; Class II COs originate from a minor pathway that uses structure-specific DNA nucleases also implicated in DNA repair in somatic cells. Despite an excess of initial double-strand breaks at meiosis, the number of resulting COs is limited, typically to one to three per chromosome pair. Class I COs are subject to additional tight constraints: At least one class I CO occurs per chromosome pair at each meiosis, the so-called obligate CO that ensures balanced chromosome distribution. Class I COs are also prevented from occurring next to each other on the same chromosome, a phenomenon called CO interference. How this interference is achieved mechanistically has been debated for over a century1,2,3,4,5,6.
Whereas the ID.4 plays against crossovers, and no one buys a crossover for the driving. Do they? Crossovers are family transit pods. And judged through that lens, the ID.4 is right on target. Not in the same league of cool as the Hyundai Ioniq 5 and Kia EV6, though.
The Body Solid Pro Clubline Cable Crossover is the pinnacle of versatility in strength training. Offering an unlimited number of exercises, cable crossover machines are a staple to any gym, health club, fitness center, or workout facility. The SCC1200G is designed and built to satisfy any fitness enthusiast. Pulleys swivel 180 degrees allowing accurate resistance throughout any exercise movement. The pulleys also adjust to 12 different horizontal positions ensuring a proper starting point for almost any exercise. Premium commercial components ensure dependability and reliability even in heavy use, high-traffic gyms and clubs. Stable, solid and smooth, the Body Solid Proclubline cable crossover machine is an essential piece for any workout facility. 2ff7e9595c
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