AHM-64 Getting Started Guide
18
AP11781 Issue 3
9.
Technical specs
Inputs
System
Mic/Line Inputs
Balanced, +48V phantom power
Measured balanced XLR in to XLR out, 20-20kHz, +5dB Gain,
Pad out, signal @ 0dB (meter)
Mic/Line Preamp
Fully recallable
Dynamic Range
110dB
Input Sensitivity
-60 to +15dBu
System Signal to Noise
-94dB
Analogue Gain
+5 to +60dB, 1dB steps
Frequency Response
20Hz - 25kHz +0/-0.8dB
Pad
-20dB Active PAD
THD+N (analogue in to
out)
0.005% @ +16dBu output, 1kHz
+5dB gain
Maximum Input Level
+30dBu (PAD in)
Headroom
+18dB
Input Impedance
>3
kΩ (Pad out), >
8
kΩ (Pad in)
Sampling Rate
96kHz +/- 20 PPM
Mic EIN
-127dB with 150
Ω
source
ADC
32-bit Delta-Sigma
DAC
32-bit Delta-Sigma
Outputs
Analogue Outputs
Balanced, Relay protected
Playback
Output Impedance
<75Ω
Internal Storage
~3GB
Nominal Output
+4dBu = 0dB meter reading
File types
Mono/stereo .WAV (16/24bit,
44.1/48/96kHz), MP3, FLAC
Maximum Output Level
+22dBu
Residual Output Noise
-94dBu (muted, 20-20kHz)
-92dBu (muted, 20-40kHz)
Dimensions and
Weights
Unboxed
Width x Depth x Height x Weight
Operating Temperature
Range
0 deg C to 40 deg C
(32 deg F to 104 deg F)
AHM-64
482.6mm x 364mm x 91.2mm x 7kg
(19” x 14.3” x 3.6”
x 15.5lbs)
Mains Power
100-240V AC, 50-60Hz, 70W max
DC Power
12VDC - 5A minimum
8A maximum
Boxed
AHM-64
600 x 500 x 180 mm x 9.5kg
(23.
6” x 19.7” x 7.1”
x 21lbs)
