Join Date: May 2002
Location: East Coast
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Adru...agree with most of that. It is increasingly odd to find a cassette in a radio these days anyway so FM modulators are the only solution for most to get IPOD sound into existing radios.
Almost all new radios have aux input jacks these days...but if you have an ipod and are thinking about a radio, you should probably get one with a complete ipod interface for a full feature set rather than just a jack through of the music if budget allows.
As to cassette vs. FM...you pick up 20hz on the low end...almost and octave in that range and 3000hz on the top end or about 3 notes on the highs assuming a 30-18.000 hz range vs. the limits of FM of 50-15khz.
Signal to noise is dicier since about 60db is common with tape and that is within the POTENTIAL of FM in MONO but is rarely achieved in the real world due to transmission compression and local noise. A difference of 3db is audible and a difference of 10db is perceived as TWICE the noise. Channel separation (stereo effect) on FM vs. Cassette is also substantially degraded.
All of this is moot if you have an aux jack as then you are solely limited by the specs of the car radio amplifier which usually comfortably exceeds
(Typically 20-20000hz and 100db+ S/N) and the specs of the MP3 player (variable).
Crutchfield is an excellent source of products and info...but they do tend to dumb things down a bit for a general audience without misleading. They are quite good over the phone with help and suggestions for a specific situation and budget.
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