Channel Separation/ Isolation testing Part 2 Results

RESULTS>>>>

Ambient base-line volume of test room 59.8 dB

JL Audio 300/2
left speaker, balance to right-----------------62.4dB
right speaker, balance to left-----------------62.1dB
right speaker, rt RCA unplugged----------------63.6dB
left speaker, lt RCA unplugged-----------------64.3dB

DLS A3 Twin Mono
left speaker, balance to right-----------------61.0dB
right speaker, balance to left-----------------61.2dB
right speaker, rt RCA unplugged----------------60.6dB
left speaker, lt RCA unplugged-----------------60.4dB

Sinfoni Amplitude 150.2X
left speaker, balance to right-----------------61.2dB
right speaker, balance to left-----------------61.5dB
right speaker, rt RCA unplugged----------------61.1dB
left speaker, lt RCA unplugged-----------------66.5dB(yikes)

Arc Audio 2150SE
left speaker, balance to right-----------------61.1dB
right speaker, balance to left-----------------60.9dB
right speaker, rt RCA unplugged----------------62.1dB
left speaker, lt RCA unplugged-----------------61.7dB

JBL Power PX300.4
left speaker, balance to right-----------------63.1dB
right speaker, balance to left-----------------61.7dB
right speaker, rt RCA unplugged----------------66.1dB
left speaker, lt RCA unplugged-----------------67.2dB

SIDENOTE--- Since the JBL is a 4 channel amp, I tried a quick test to see if front to rear crosstalk was occuring within the amp, so I switched the RCAs to the rear inputs only (speakers were connected to front outputs for testing!), and did another measurement

left front speaker, rear RCA inputs ONLY------60.3dB
right front speaker, rear RCA inputs ONLY-----60.5dB

Next post will be discussion of results, surprising findings, an correlation with actual listening tests and how these channel separation performances can affect the sound stages in our vehicles