Some measurement Edirol UA1000

[shal]

Hi,

Yesterday I do measurement of my Lavry DA11 : https://www.audiosciencereview.com/...vry-da11-with-sound-devices-mixpre10ii.13015/
Today, I perform measurement of my old Edirol UA1000 :

This interface is the first USB 2.0 audio interface in the world (2004)
A review from SoS : https://www.soundonsound.com/reviews/edirol-ua1000

Main caracteristics:

• 10 In x 10 Out 24-bit/96kHz full duplex USB 2.0 audio
• XLR/TRS jacks with Phantom power
• High-quality microphone preamps using premium analog components
• SP/DIF (optical/coaxial), 8 analog I/O, 8-channel ADAT, MIDI, Word Clock
• A-D converters: 24-bit, 64x oversampling (part of AK4528 Codec chip).
• D-A converters: 24-bit, 128x oversampling (part of AK4528 Codec chip).
• Sample rates: 44.1, 48, 88.2 and 96 kHz (plus 192kHz playback only to output channels 1/2 & headphone).

It is my main dac during more that 10 years (now it is Lavry DA11)

I do measurement with my Field recorder Sound Devices MixPre10 ii
Main characteristics from site of the Sound Devices:
-130dBV (-128dBu) max (A-weighting, gain=76dB, 150 ohm source impedance)
ADC : 32 bit precision; 142dB dynamic range min (A-weighted, gain=10dB, fader=0dB)

So normally the quality of the preamp/adc is very superior to the DAC quality

The setup is the follow :
Windows Software -> Wine -> Linux -> usb -> Edirol UA-1000 -> XLR (with TRS adaptator) -> Sound Devices -> usb -> Linux-> Wine -> Windows Software

I have used two windows softwares : Arta and RMAA

Arta :

RMAA :

Conclusion : If I look only dynamic range test from RMAA, this interface is quite good .
Arta is more average, specially the left side ...

Arta or RMMA , how is the closer of the truth ?

Comment are welcome: interpretation of measurement, on the methodolgy etc etc

Olivier