ZOOM 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.