2018年9月5日 · For any device that uses a standard speaker driver, the Hz-KHz value is the range of audible sound vibrations that the speaker can produce. It's generally labeled as the "frequency response" and expressed in hertz, with kilohertz being a thousand hertz.

2008年5月16日 · the 60 Hz - 25 kHz will play down to roughly 60 Hz. By comparison, the speaker that plays a frequency range of 40 Hz - 20 kHz will play deeper bass because it goes down to 40 Hz (pretty low for an out door speaker).

2020年2月1日 · If you are referring to 25 kHz spacing versus 8.33 kHz spacing, it gives more channel options in radio transceivers. Ex1. There are 41 channels in the frequency space of 118.0 and 119.0 MHz, inclusively, with 25 kHz spacing.

2023年6月11日 · In real-world application, GMRS WFM (aka wide band) "channel spacing" is 25 kHz and the typical occupied bandwidth is 20 kHz. The NFM (aka narrow band) channels are spaced 12.5 kHz and are typically 11 kHz occupied bandwidth.

" In the empty space that existed under 25 KHz spacing, a new channel is available. " Each assigned radio channel is allowed to use 4.5 KHz bandwidth of the radio spectrum - (designated in blue); and the empty space between them is 8.0 KHz - (designated in green).

2011年1月16日 · I'll probably upgrade my receiver and add a sub before this happens, but for future reference, what speaker models are a good place to start for those 25khz and higher frequencies? I picked 25 because I just found that is the cutoff for my Polk 60s.

2005年3月10日 · But if we play the 28 Hz tone, the M80's output at 28 Hz won't be as loud. If we measure it in an anechoic chamber, it may be at -6 dB. (The M80's output at 25 Hz is -9 dB. It's much harder for woofers to reproduce deep bass as powerfully as midrange frequencies.)

2016年1月15日 · What's up with tweeters capable of producing frequencies at 30, 35, and even 40 kHz? The average human is born able to hear frequencies up to 25 kHz, but by adulthood, the average human can only hear frequencies with an upper limit between 15 and 17kHz.

2024年5月14日 · The Verdict: Humans Cannot Hear 25 kHz. No, despite what you may have heard, humans cannot perceive sounds as high as 25,000 Hz. As an avid gamer and VR enthusiast, I explore a lot of questions around audio capabilities. So I‘ve dug into the science and studies about human hearing range.

Currently, two main spacing standards are used for VHF communication: 25 kHz and 8.33 kHz. The 25 kHz channel spacing was introduced in the 1970s and allows for a total of 760 frequencies (19 MHz x 40 channels per MHz). In order to provide global …