CFO (Chief Fun Officer)
- Feb 13, 2016
- Seattle Area
Correction : see the review from HomeThetreHiFi, compare Marantz 8805 with other AV processor which supports more or less similar features (Audyssey processing requires a lot of processing power), and make new conclusions.
You see in black and white that 2 volts is not proper for XLR output. And why they tested at 5 volt which is even higher than what I tested.
Bryston 4b sensitivity at 1.4V for 250W at 8 ohm (it has switchable gain 23dB or 29dB).
You need 3.46 volts for full power in low gain mode, not 1.4 volt. Even in high gain you won't achieve full power at 1.4 volts (1.73 volts is needed).
Regardless, there are no standards for power amplifier gain. Since XLR is a professional standard, let's go to venerable rane.com for verification: https://www.rane.com/note135.html
4 dBu = 1.2 volts. 20 dBu = 7.7 volts (RMS).
So as you see, 4 volts RMS that I test at is not at all extreme.
Bottom line: my reviews don't cater to spec verification. They follow standardized norms and apples vs apples comparison. We can't grade on a curve especially when we are talking such an expensive processor.