What is the noise level of PCR-LE series?

The noise level of PCR-LE series is as follows:
Condition: maximum value at 100 % fan control.
Reference standard: JIS Z8731
PCR500LE: 56 dB
PCR1000LE: 60 dB
PCR2000LE: 62 dB
PCR4000LE: 63 dB
PCR6000LE: 64 dB
PCR9000LE: 66 dB