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Re: PI 4 Upgrades [message #93647 is a reply to message #93645]

Sun, 02 May 2021 14:31

Wayne Parham
Messages: 18792
Registered: January 2001

Illuminati (33rd Degree)

The Radian 475BePB should work, but I haven't tested it. Not sure about the exit angle and whether it matches to entrance of the H290C. Also, you would want to match the sensitivity using R1/R2 values from the chart below:

               dB        R1        R2
               ========================
               6dB     12 ohm    30 ohm
               8dB     12 ohm    20 ohm
               10dB    16 ohm    16 ohm
               12dB    25 ohm    16 ohm
               14dB    30 ohm    14 ohm
               16dB    40 ohm    12 ohm
               18dB    50 ohm    12 ohm
               20dB    75 ohm    12 ohm
               ========================

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[Message index]

		PI 4 Upgrades By: docjrev on Wed, 21 April 2021 14:43
		Re: PI 4 Upgrades By: Wayne Parham on Wed, 21 April 2021 17:55
		Re: PI 4 Upgrades By: docjrev on Thu, 22 April 2021 10:34
		Re: PI 4 Upgrades By: Wayne Parham on Thu, 22 April 2021 11:57
		Re: PI 4 Upgrades By: docjrev on Thu, 22 April 2021 14:44
		Re: PI 4 Upgrades By: Wayne Parham on Thu, 22 April 2021 15:15
		Re: PI 4 Upgrades By: docjrev on Fri, 23 April 2021 12:36
		Re: PI 4 Upgrades By: Jetpump on Sun, 02 May 2021 13:04
		Re: PI 4 Upgrades By: Wayne Parham on Sun, 02 May 2021 14:31

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