All of our engineers are musicians and they designed the R4 to empower musicians to explore big ideas. With a unique dedicated ‘bounce track’ and 32-bit float recording, the R4 is perfect for capturing your most ambitious compositions.
หมวดหมู่ : Zoom ,  มิกซ์เซอร์ / Mixer , 
แบรนด์ : Zoom
Share
Specs
INPUTS / OUTPUTS
Inputs
Built-in mic (mono)
1
XLR/TS inputs (mono)
2
Output
Headphones
1
Inputs
XLR/TRS inputs
Connectors
2 XLR/TRS combo jacks (Balanced, XLR: 2 HOT)
Input gain
No adjustment required (dual A/D converter circuit used)
Input impedance
XLR: 2.3 kΩ
TS: 1 MΩ
Maximum input level
XLR: +4 dBu
TS: +10 dBu
Phantom power
+48 V (switchable separately for INPUTS A and B)
Equivalent input noise
XLR: −120 dBu or less (IHF-A)
TS: −107 dBu or less (IHF-A)
Frequency response
XLR: -0.5 /+0.0 dB : 20 Hz - 20 kHz
TS: -0.2 /+0.0 dB : 20 Hz - 20 kHz
Built-in mic input
Directionality
Omnidirectional
Input gain
No adjustment required (dual A/D converter circuit used)
Maximum sound pressure input
115 dB SPL
Output
Headphones
Connector
1 stereo 3.5mm mini jack
Output impedance
10 Ω
Maximum output level
20 mW + 20 mW (into 32Ω load)
Recorder
Maximum simultaneous recording tracks
2
Recording format
WAV: 48kHz, 32-bit float, mono
Recording media
Cards compatible with microSDHC specifications 4 GB – 32 GB
Cards compatible with microSDXC specifications 64 GB – 1 TB
Display
2" full-color LCD (240 × 320)
USB
Connector
USB Type-C
Note: Use a USB cable that supports data transfer. USB bus power is supported.
Audio interface function
Class
USB 2.0 High Speed
Sampling frequency
48 kHz
Bit rate
24-bit/32-bit float
Input / output channels
2 in/2 out
Mass storage function
USB2.0 High Speed
Power supply
Batteries: 4 AA (alkaline, lithium, or rechargeable NiMH)
AC adapter: ZOOM AD-17 (5V/1.0A)
* USB bus power is supported.
Estimated continuous operation time using batteries
Alkaline batteries: about 7 hours
NiMH batteries (1900 mAh): about 6 hours
Lithium batteries: about 14 hours
* Use conditions: Recording 1 track, playing 1 track, phantom power off, headphones into 32Ω load, power saving on
* The above values are approximate. * Continuous battery operation times were determined using in-house testing methods. They will vary greatly according to use conditions.
Power consumption
5 W
External dimensions
74 mm (W) × 138 mm (D) × 36 mm (H)
Weight (including batteries)
287 g
Note: 0 dBu = 0.775 Vrms