for this you need good microphone or good acoustic transducer(or few), good recorder(or multi-track... teac 4-track r2r is one of the great examples), good player, good room and possibly good amplifier. in addition you'll need a musical instrument that you're going to record. good ones to test are trumpet, sax, guitar, double-bass and certainly piano. you'll also need monitor headphones to adjust proper recording level when you test your instrument.
1. record any instrument handy(i'd use 15ips speed of recording on r2r gear)
2. adjust volume of amp to the same level as volume of your live instrument
3. play it through the speakers and analyze the difference.
4. if the difference minimal the speakers are good.
1. record any instrument handy(i'd use 15ips speed of recording on r2r gear)
2. adjust volume of amp to the same level as volume of your live instrument
3. play it through the speakers and analyze the difference.
4. if the difference minimal the speakers are good.