Metric Halo 2882 operating guide - Manual (Page 34)

Mobile I/O User’s Guide
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This format supports input levels up to +6 dBu. The input impedance
is approximately 200k (12k with phantom power engaged) and the
inline pad is not engaged. Phantom power is available.
This format is appropriate for interfacing with dynamic and con-
denser microphones on low to mid level sources. You may find that
for very low level sources, especially with low-sensitivity micro-
phones, that your SNR improves if you take advantage of a high-qual-
ity external mic preamp. External preamps are recommended for
certain types of recording and microphones, especially classical
recording and ribbon mics.
• Mic/Pad
This format supports input levels up to +26 dBu. The input imped-
ance is approximately 10k, (6k with phantom power engaged) , and
the inline pad is not engaged. Phantom power is available.
This format is appropriate for phantom powered condenser mics
that put out near-line level signals (often the case when you are using
condenser microphones on bass drums or other very loud sources).
4. Gain Trim knob
• The Gain Trim knob allows you to adjust the analog gain of the input stage
over a 40dB range determined by the input standard that you have
selected. The gain is indicated in dB relative to the nominal level of the
input standard you have selected. The gain changes are smoother near the
bottom of the scale, with the steps increasing in size as you reach the
+40dB gain limit.
5. Channel Label button
• This simply labels which channel is associated with the channel strip.
6. Channel Level Meter
• This is a peak reading, high-resolution, fast PPM meter. It shows the post
converter level of the input signal of the associated channel.. The peak
hold bar indicates the highest level seen on the channel since the last
Figure 19: Gain Trim Knob
Figure 20: Channel Label