RME M-16 AD [22/57] Analog inputs

User’s Guide M-32 AD © RME

10. Analog Inputs

The M-32 AD’s rear has 32 balanced Line inputs, provided by 1/4"

TRS and four 25-pin D-sub connectors. Both are internally con-

nected, so can not be used at the same time. The electronic input

stage is built in a servo balanced design which handles unbalanced

(mono jacks) and balanced (XLR, stereo jacks) signals correctly,

automatically adjusting the level reference.

When using unbalanced cables with XLR or TRS connectors be sure

to connect pin 3 (- or ring) to 1 (ground). Otherwise noise may occur,

caused by the unconnected negative input of the balanced input.

The 25-pin D-sub connector follows the pinout known from devices

manufactured by Tascam (pinout see chapter 15.9). Your local

dealer will supply analog breakout multicores D-sub to XLR in Tas-

cam pinout in different lengths.

The M-32 AD uses a completely symmetrical signal path (including

limiter) that guarantees an exceptional sound quality, outstanding

low distortion and highest Signal to Noise ratio in all level settings.

One of the main issues when working with an AD-converter is to maintain the full dynamic

range within the best operating level. Therefore the M-32 AD internally uses hi-quality electronic

switches, which introduce no additional noise or distortion to the audio path. The key ANALOG

INPUT allows for a perfect adaptation of all 32 channels to the most often used studio levels.

Each analog input has its own 5-segment level meter, so every channel can be checked for

input signal and overloads easily. The red LED OVR lights up 0.2 dB before full scale level (-0.2

dBFS).

The M-32 AD uses the following level references:

Reference 0 dBFS @ Headroom @ +4 dBu Other RME devices

+24 +24 dBu 20 dB -

+19 +19 dBu 15 dB LoGain

+13 +13 dBu 9 dB +4 dBu

Set to +24 dBu the M-32 AD is compatible to SMPTE (+24 dBu @ 0 dBFS, +4 dBu with 20 dB

of headroom).