crossover frequency การใช้

• Also, this speaker had a lower crossover frequency of 1000 Hz.
• The frequency ranges or crossover frequencies may be adjustable.
• The original 601 The first 604 had a crossover frequency of 2000 Hz.
• In practice all speakers will exhibit some amount of lobing at the crossover frequency ( ies ).
• Within the region of the lobe the sound level, at the crossover frequency is much higher as compared to outside the lobe.
• In addition, using relatively small elements with a relatively high crossover frequency, such as 500 Hz, has a number of advantages.
• However, crossovers of higher order than 4th may have less usability due to their increasing peak in group delay around crossover frequency and complexity.
• Bode's ideal control loop frequency response has the fractional integrator shape and provides the iso-damping property around the gain crossover frequency.
• The horn was designed with a cut-off frequency of 900 Hz and the system was set with a crossover frequency of 1200 Hz.
• For both circuits, the crossover frequency f _ \ text { b }, at which the gain is 0 dB, is given by:
• Proper design of a bi / tri amplifier system requires a study of driver ( speaker ) frequency response and sensitivities to determine optimal crossover frequencies and power amplifier powers.
• Morgan's observation that the amount of crossing over between linked genes differs led to the idea that crossover frequency might indicate the distance separating genes on the chromosome.
• To properly align adjacent frequency bands through a crossover, the two phase responses should be adjusted until they are seen in Smaart to be parallel through the crossover frequency.
• Due to this, at the crossover frequency since both drivers are producing the same frequency, the sound waves from the tweeter arrive at the listening position P earlier than those from the woofer.
• It is commonly thought that there will always be a phase difference of 180?between the outputs of a ( second order ) low-pass filter and a high-pass filter having the same crossover frequency.
• Since a true spherical wavefront cannot be achieved in practice, designers try to make the lobe as wide as possible at the crossover frequency ( ies ), such that at typical listening positions, the speaker appears omnidirectional.
• Also, the more gradual the slope, greater is the vertical separation between the drivers, which in turn again causes thinning of the lobe ( i . e ., increase in vertical directivity ) at the crossover frequency.
• However a speaker that has the best dispersion at all frequencies of interest ( especially the crossover frequency ( ies ) ), will have the least colouration of sound-i . e ., it will most faithfully reproduce the recorded material.
• A typical characteristic of a 2-way speaker is that at the crossover frequency, due to the physical distance between the centres of the woofer and tweeter, the sound that emanates from the combination is not omni-directional, but lobed.
• This method was adopted, with crossover frequencies for the emphasis / de-emphasis at 5.2 MHz for Y and 1.6 MHz for C . With this in place, the power requirements drop to 260 W of power ( 190 for Y and 69 for C ).