Sorry, I've been out of town for a few days.
Absolutely! That is exactly what compelled me to respond to your following post (I bolded the word "matches"):
To get some idea of the degree of inaccuracy, I found a receiver (Marantz SR-6004) which was recently reviewed by both,
Audioholics and
Home Theater Magazine.
Crosstalk:
Home Theater Magazine states Crosstalk at 1 kHz driving 2.83 volts into an 8-ohm load was –
78.96 dB left to right and –80.67 dB right to left.
Audioholics states the worst channel exhibited around 61dB at 20hz,
70dB at 1kHz with a gradual increase with frequency (50dB @ 20kHz) due to capacitive coupling. These were good measurements.
Home theater Magazine's spec is
9dB better than
Audioholics.
Signal to Noise Ratio:
Home Theater Magazine states "The signal-to-noise ratio with 2.83 volts driving an 8-ohm load from 10 Hz to 24 kHz with “A” weighting was
–103.11 dBrA. . "
Audioholics states "The SR6004 yielded
82.9dB for the worst channel which is an excellent measurement. It's no wonder why the SR6004 sounds so clean and detailed at low power levels."
Home theater Magazine's spec is
20dB better than
Audioholics. That is a dramatic difference!
This is a sample of one instance and it would be simplistic to believe these differences are typical or could be accurately used to compare specifications. However, this does establish that the results between these sources are not comparable.
Audioholic's review:
http://www.audioholics.com/reviews/receivers/marantz-sr6004-1/sr6004-measurements
Home theater Magazine's review:
http://hometheatermag.com/receivers/marantz_sr6004_av_receiver/index4.html