AMS-44

Input and Output Channels
Number of input channels
Mono (MIC/LINE)
4
Number of output channels
Stereo (TRS)
1
 
Stereo (PHONES)
2
Connectors
INPUT 1-4
Type
XLR/TRS combo jacks
 
 
(XLR: 2 HOT, TRS: TIP HOT)
 
Input gain
−∞ – +58 dB / −∞ – +50 dB (when set to GUITAR)
 
Input impedance
XLR: 2.7 kΩ
 
 
TRS: 18 kΩ / 330 kΩ (when set to GUITAR)
 
Maximum input level
XLR: +6 dBu
 
 
TRS: +22 dBu / +8.5 dBu (when set to GUITAR)
 
Phantom power
+48 V
OUTPUT A (standard phone jacks)
Type
TRS phone jacks (impedance balanced)
 
Maximum output level
+10 dBu (at 0 dBFS)
 
Output impedance
100 Ω
OUTPUT A–B (headphone jacks)
Type
3.5mm stereo mini jacks
 
 
30 mW + 30 mW (32 Ω load)
 
Output impedance
10 Ω
USB
 
USB Type-C (audio interface function)
 
 
• Use a USB cable that supports data transfer. USB bus power is supported.
DC 5V
 
USB Type-C (for power supply)
Frequency Response
 
44.1 kHz: ±1 dB (20 Hz – 20 kHz)
 
96 kHz: ±1.5 dB (20 Hz – 40 kHz)
Equivalent input noise
 
–120 dBu or less (IHF-A) at +58 dB/150Ω input
Audio interface
Input and output channels
Recording: 4 channels
 
Playback: 4 channels
Sampling frequencies
96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz
Bit depth
24-bit
Interface
USB 2.0
Class
USB Audio Class 2.0
Power
 
2 AA batteries (alkaline, lithium, or rechargeable NiMH)
 
AC adapter (ZOOM AD-17): DC 5 V/1 A
 
• USB bus power is supported.
Rated Current
 
USB/AC adapter (5 V): 350 mA
 
Batteries (2.4 V): 560 mA
Estimated continuous operation time using batteries
 
44.1 kHz, 48 V off, with 32Ω headphone load
 
Alkaline batteries: about 3 hours
 
NiMH batteries (1900 mAh): about 4.5 hours
 
Lithium batteries: about 8.5 hours
 
• The above values are approximate. • Continuous battery operation times were determined using in-house testing methods. They could vary greatly according to use conditions.
Power Consumption
 
5 W maximum
Dimensions
 
129.0 mm (W) × 74.0 mm (D) × 46.0 mm (H)
Weight (unit only)
 
177 g
Weight (including batteries)
 
223 g
AMS-Series System Requirements
Windows
OS: Windows® 10 / 11 (64bit)
 
CPU: Intel® Core i3 or faster, or AMD Ryzen 3 or faster with Zen architecture*
 
USB: USB 3.0 / 2.0**
 
* Operation is not guaranteed with CPUs from Intel® Atom, Celeron or Pentium series or CPUs from AMD Athlon.
 
** Only USB host controllers with Intel/AMD Chipsets are supported. Operation is not guaranteed when used with USB hubs or expansion cards.
Mac
OS: Mac® OS X 10.14.6 ~ macOS 15
 
CPU: Intel® Core i3 or faster, or Apple M1
 
USB: USB 3.0 / 2.0*
 
* Operation is not guaranteed when used with USB hubs or expansion cards.
iPhone / iPad
OS: iOS/iPadOS 13.7 ~ 18
 
* Apple Lightning-to-USB Camera Adapter required.
Android
OS: Android OS 9 ~ 11
 
* USB cables and adapters that match the connectors are necessary.
 
* Please refer to the compatible android device list.