The hum was eliminated, the tinny sound was gone, and the audio was strong and fantastic. So I opened the Heil PR 30, and installed a 1uf capacitor in the audio hot wire from the Dynamic element. Then I remembered that Icom inserts 7.5VDC on the audio line to power their Electret Condenser mic elements, and the coil in the PR 30 was vibrating with the voltage. So I figured it would have enough volume to make the PR 30 provide enough audio. I did a quick wiring just to see what would happen. The PR 30 had a very noticeable hum and sounded very tinny on my 746PRO. The 746PRO has a much higher gain audio amp than my older 706MKIIG has, as does most newer radios today. One day I decided to bypass the W2IHY EQ device, and connect the old Heil PR 30 directly to my 746PRO. It just wasn’t as clean and natural as it was on the old 706MKIIG. It got better, but they said it still lacked something. I still got compliments, but my local friends said it was not as crisp and clean as it was from the 706MKIIG. Then I bought my new Icom 746PRO and instantly moved the W2IHY EQ to that radio. I got lots of big compliments on my clean strong audio on HF SSB. So I got the W2IHY 8 Band EQ and ran my former Heil PR 30 through it into the 706MKIIG. And the 706 did not have any mic tone settings. But the audio levels were far too low for any dynamic element like most studio mics have. But that radio had a low gain audio amp that was great with an electret condensor mic element. I had a W2IHY 8-Band EQ and it worked great on my old Icom 706MKIIG. And the most popular one on the market is the W2IHY 8 Band EQ and EQ Plus units. MFJ makes an audio device they call an audio conditioner, but it’s just another EQ. But most of all, let’s use some basic common sense. Back when it was a matter of pride to have good clean natural sounding audio from our nice expensive ham radios. Are they really helping your audio, do they just fill a hidden fantasy of having that big comercial radio announcers deep bassy voice? Or are they just there to try and impress others? Let’s go back to the days when we got sick of crappy CB audio and strived for something much better. Reading that article first may clarify some of the statements made here in this article.Ī lot of hams spend big money on these devices, and I do mean big money. This article is actually a second part to another article called “Microphone Frequency Response” which should be read first to fully understand the audio that radios and microphones are capable of. Lastly, make sure that your subwoofer’s volume is turned up enough.I want to get into this subject because it is important to good audio practice. You can also try to change how your receiver or sound system handles crossover. If it isn’t, you might need to get a subwoofer or amplifier with better sound quality. First, make sure that your sub bass is playing in the right frequency range. You can do a few things to make your sub bass sound deeper. Most of the time, the level slider on the front of the equalizer is used to change the level. Most of the time, the Q-Factor is changed by moving the Q-Factor slider on the front of the equalizer. Most of the time, the band slider on the front of the equalizer is used to change the frequency. You can change a bass equalizer in three main ways: by frequency, by Q-Factor, or by Level. Third, do a lot of practice! How do you adjust a bass equalizer? Second, make sure your bass strings are good. First, make sure that your bass amp is good. You can improve the sound of your bass in a few ways.
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