Re: Radio sound quality - some measurements
The mod works very well as I have done it to my Yacht Boy after I was disappointed at how it sounded with an extension speaker. After the removal of the components the extension speaker sounded normal, the internal speaker has good bass extension without being overblown and the tone control set to around three quarters gives a natural treble response. Changing the value of 611 could compensate for any change in frequency response but in practice isn't necessary, the radio whether on internal or external speakers sounds more natural, or maybe neutral. Additional attenuation could be fitted to the input of the volume control as the input signal is larger but only noticeable if the volume is turned fully up.
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Geoff
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