Máy Ghi Âm Zoom H4essential

INPUT AND OUTPUT CHANNELS
Inputs Built-in mic (stereo) 1
XLR/TRS 2
MIC/LINE IN 1
Outputs Headphones 1
Built-in speaker (mono) 1
INPUTS
Built-in mic 90º XY stereo format
Directionality Unidirectional
Sensitivity –43 dB/1 Pa at 1 kHz
Maximum sound pressure input 130 dB SPL
INPUT1-2 Connector XLR/TRS combo jacks ×２
(XLR：2 HOT TRS：TIP HOT）
Input gain Adjustment unnecessary
Input impedance MIC (XLR) : 3.8 kΩ or more
LINE (TRS) : 39 kΩ or more
Maximum input level MIC (XLR) : +4 dBu
LINE (TRS) : +24 dBu
Phantom power +48 V
Channel total 10 mA or less
Equivalent input noise MIC (XLR) : -120 dBu or less（IHF-A) @150 Ω input
LINE (TRS) : -95 dBu or less（IHF-A) @600 Ω input
MIC/LINE IN Connector Stereo mini jack
（supports plug-in power） Input gain Adjustment unnecessary
Input impedance 2 kΩ or more
OUTPUTS
Headphones Connector Stereo mini jack
Maximum output level 20 ｍW + 20 ｍW（into 32 Ω load）
Output impedance 10 Ω or less
Built-in speaker Type 20 x 30mm elliptical dynamic speaker
Effective maximum output 250mW
RECORDER
Maximum simultaneous recording tracks 4
Maximum simultaneous playback tracks 4
Recording formats WAV
44.1/48/96 kHz,
32-bit float mono/stereo
BWF and iXML formats supported
Recording media 4-32GB cards compatible with the microSDHC specification
64GB–1TB cards compatible with the microSDXC specification
DISPLAY
2.0-inch full-color LCD 360 x 240
USB
Connector USB Type-C
• Use a USB cable that supports data transfer.
Audio Interface USB 2.0 High Speed
Input and output channels 4 in / 2 out (Multi)
2 in / 2 out (Stereo)
Sampling frequency 44.1/48/96 kHz (AIF only)
44.1/48 kHz (AIF + onboard recording)
Bit depth 24-bit, 32-bit float
File transfer USB 2.0 High Speed
REMOTE
Dedicated wireless adapter ZOOM BTA-1
POWER
2 AA batteries Alkaline, lithium or rechargeable NiMH batteries
AC Adapter ZOOM AD-17：DC 5V / 1 A
• USB bus power is supported.
ESTIMATED CONTINUOUS OPERATION TIMES USING BATTERIES : 2-track recording (built-in XY mic)
Alkaline batteries About 9 hours
NiMH batteries (1900 mAh) About 9 hours
Lithium batteries About 19 hours
48 kHz/32-bit float, phantom power off, no headphones, no remote, display power saving on, display brightness at Medium
• These values are approximate.
• Continuous battery operation times were determined using in-house testing methods.They will vary greatly according to use conditions.

ESTIMATED CONTINUOUS OPERATION TIMES USING BATTERIES : 4-track recording (built-in XY mic with INPUT 1-2)
Alkaline batteries About 2 hours 30 minutes
NiMH batteries (1900 mAh) About 4 hours
Lithium batteries About 8 hours
48 kHz/32-bit float, phantom power off, headphones used (33Ω load), no remote, display power saving on, display brightness at Medium
• These values are approximate.
• Continuous battery operation times were determined using in-house testing methods.They will vary greatly according to use conditions.

ESTIMATED CONTINUOUS OPERATION TIMES USING BATTERIES : 4-track recording (plug-in power mic with INPUT 1-2)
Alkaline batteries About 40 minutes
NiMH batteries (1900 mAh) About 1 hour 30 minutes
Lithium batteries About 3 hours 30 minutes
48 kHz/32-bit float, phantom power off, headphones used (33Ω load), no remote, display power saving on, display brightness at Medium
• These values are approximate.
• Continuous battery operation times were determined using in-house testing methods.They will vary greatly according to use conditions.

Power consumption 3 W maximum
Dimensions 66.9 mm (W) × 156.1 mm (D) × 38.0　mm (H)
Weight (including batteries) 243 g

Thông số kỹ thuật

INPUT AND OUTPUT CHANNELS
Inputs Built-in mic (stereo) 1
XLR/TRS 2
MIC/LINE IN 1
Outputs Headphones 1
Built-in speaker (mono) 1
INPUTS
Built-in mic 90º XY stereo format
Directionality Unidirectional
Sensitivity –43 dB/1 Pa at 1 kHz
Maximum sound pressure input 130 dB SPL
INPUT1-2 Connector XLR/TRS combo jacks ×２
(XLR：2 HOT TRS：TIP HOT）
Input gain Adjustment unnecessary
Input impedance MIC (XLR) : 3.8 kΩ or more
LINE (TRS) : 39 kΩ or more
Maximum input level MIC (XLR) : +4 dBu
LINE (TRS) : +24 dBu
Phantom power +48 V
Channel total 10 mA or less
Equivalent input noise MIC (XLR) : -120 dBu or less（IHF-A) @150 Ω input
LINE (TRS) : -95 dBu or less（IHF-A) @600 Ω input
MIC/LINE IN Connector Stereo mini jack
（supports plug-in power） Input gain Adjustment unnecessary
Input impedance 2 kΩ or more
OUTPUTS
Headphones Connector Stereo mini jack
Maximum output level 20 ｍW + 20 ｍW（into 32 Ω load）
Output impedance 10 Ω or less
Built-in speaker Type 20 x 30mm elliptical dynamic speaker
Effective maximum output 250mW
RECORDER
Maximum simultaneous recording tracks 4
Maximum simultaneous playback tracks 4
Recording formats WAV
44.1/48/96 kHz,
32-bit float mono/stereo
BWF and iXML formats supported
Recording media 4-32GB cards compatible with the microSDHC specification
64GB–1TB cards compatible with the microSDXC specification
DISPLAY
2.0-inch full-color LCD 360 x 240
USB
Connector USB Type-C
• Use a USB cable that supports data transfer.
Audio Interface USB 2.0 High Speed
Input and output channels 4 in / 2 out (Multi)
2 in / 2 out (Stereo)
Sampling frequency 44.1/48/96 kHz (AIF only)
44.1/48 kHz (AIF + onboard recording)
Bit depth 24-bit, 32-bit float
File transfer USB 2.0 High Speed
REMOTE
Dedicated wireless adapter ZOOM BTA-1
POWER
2 AA batteries Alkaline, lithium or rechargeable NiMH batteries
AC Adapter ZOOM AD-17：DC 5V / 1 A
• USB bus power is supported.
ESTIMATED CONTINUOUS OPERATION TIMES USING BATTERIES : 2-track recording (built-in XY mic)
Alkaline batteries About 9 hours
NiMH batteries (1900 mAh) About 9 hours
Lithium batteries About 19 hours
48 kHz/32-bit float, phantom power off, no headphones, no remote, display power saving on, display brightness at Medium
• These values are approximate.
• Continuous battery operation times were determined using in-house testing methods.They will vary greatly according to use conditions.

ESTIMATED CONTINUOUS OPERATION TIMES USING BATTERIES : 4-track recording (built-in XY mic with INPUT 1-2)
Alkaline batteries About 2 hours 30 minutes
NiMH batteries (1900 mAh) About 4 hours
Lithium batteries About 8 hours
48 kHz/32-bit float, phantom power off, headphones used (33Ω load), no remote, display power saving on, display brightness at Medium
• These values are approximate.
• Continuous battery operation times were determined using in-house testing methods.They will vary greatly according to use conditions.

ESTIMATED CONTINUOUS OPERATION TIMES USING BATTERIES : 4-track recording (plug-in power mic with INPUT 1-2)
Alkaline batteries About 40 minutes
NiMH batteries (1900 mAh) About 1 hour 30 minutes
Lithium batteries About 3 hours 30 minutes
48 kHz/32-bit float, phantom power off, headphones used (33Ω load), no remote, display power saving on, display brightness at Medium
• These values are approximate.
• Continuous battery operation times were determined using in-house testing methods.They will vary greatly according to use conditions.

Power consumption 3 W maximum
Dimensions 66.9 mm (W) × 156.1 mm (D) × 38.0　mm (H)
Weight (including batteries) 243 g