Analog Line Levels

The M-32 AD Pro can be adjusted to the following reference levels:

Reference	0 dBFS	Headroom at +4dBu	Other RME devices
+24	+24 dBu	20 dB	-
+19	+19 dBu	15 dB	LoGain
+13	+13 dBu	9 dB	+4 dBu

Reference

0 dBFS

Headroom at +4dBu

Other RME devices

+24

+24 dBu

20 dB

+19

+19 dBu

15 dB

LoGain

+13

+13 dBu

9 dB

+4 dBu

When set to +24, analog inputs comply with RP 155:2014 - SMPTE Recommended Practice.

AD Converter Specifications

Line In 1-32:

Resolution: 24 bit
Input level switchable per channel +24 dBu, +19 dBu, +13 dBu @ 0 dBFS
Inputs AC coupled, fully symmetrical signal path (servo-balanced)
Input Impedance 9.5 kΩ
Signal to Noise ratio (SNR) @ +24 dBu, 44.1 kHz: 117.0 dB RMS unweighted, 120.7 dBA
Signal to Noise ratio (SNR) @ +19 dBu: 116.3 dB RMS unweighted, 119.9 dBA
Signal to Noise ratio (SNR) @ +13 dBu: 114.7 dB RMS unweighted, 118.3 dBA
Frequency response @ 44.1 kHz, -0.1 dB: 5 Hz – 20.5 kHz
THD @ -1 dBFS: < -111 dB, < 0.00029%
THD+N @ -1 dBFS: < -108 dB, < 0.00039 %
Channel separation: > 110 dB