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Review Summary
4
AD/DA Conversion: 24 bits
Sampling Frequency: 44.1/48/88.2/96/192 kHz
Format: BWF, WAV
Sample Size: 16/24 bits
Sampling Frequency: 44.1/48/88.2/96/192 kHz(both Recording and Playback)
Internal Hard Disk Drive (80 GB)
16 bit/44.1 kHz (Stereo): 116 hours
16 bit/48 kHz (Stereo): 106 hours
24 bit/48 kHz (Stereo): 70 hours
24 bit/88.2kHz (Stereo): 38 hours
16 bit/96 kHz (Stereo): 53 hours
24 bit/96 kHz (Stereo): 35 hours
24 bit/192kHz (Stereo): 17 hours
Channel 1-4: XLR type (accepts phantom powered)
Internal Microphones (Stereo)
Channel 1-4: Line out (RCA phono type)
Headphones: Stereo 1/4 inch phone type
XLR type (AES/EBU, conforms to IEC 60958-4)
Analog Input: 4 k ohms
Use the sensitivity knobs to select from the following (with the input level knobs in mid-position)-56, -50, -44, -38, -32, -26, -20, -14, -8, -2, +4 dBu (input level knobs: negative infinity to +8 dB)
LINE Out: 950 ohms
Headphones: 10 ohms
LINE Out: -10 dBu (Fixed)
Headphones 40 mW + 40 mW
LINE Out: -90 dBu (SENS Knob: +4 dBu, Input Level Knob: Min)
0.01% (SENS Knob: +4 dBu, Input Level Knob: Center)
32 ohms for Headphones
20 Hz-40 kHz (0 - -3 dB)
48+/-4 V / 8 mA (Available 4 Channels simultaneously)
A Type Connector (For USB Storage device)Supports USB 1.1 and 2.0 Mass Storage Device Class.
B Type Connector (For Computer connection)Supports USB 1.1 and 2.0 Mass Storage Device Class.
BNC Coaxial type (Conforms SMPTE 12M-1999)
3-BAND EQ
6-BAND GRAPHIC EQ
NOISE GATE
ENHANCER
COMPRESSOR AND DE-ESSER
MS MIC MIXING
NO EFFECT
Power Switch
Hold Switch
Input SENS Knobs x 4
Input Level Knobs x 4
Monitor Level knob
Phantom Power Switches: CH1/2, CH3/4
Limiter Switch
Scrub (Value)/Shuttle Dial
Transport Buttons: PREV (REW), NEXT (FWD), STOP,PLAY/PAUSE, REC
Marker Buttons: CLEAR, PREV, NEXT, MARK
Function Buttons: WAVE EDIT, EFFECTS, SYSTEM
A-B Repeat Button
Display Button
128 x 64 dots Graphic LCD (backlit LCD)
AC Adapter (PSB-1U)
Alkaline dry battery LR6 (AA) type x 8, or Nickel-metal hydride battery (HR15/51) x 8
External Power Supply: 4-pin XLR type (9-16 V)
Temperature: 0 degrees Celsius to 40 degrees Celsius (according to internal test standards)
Humidity: 80% or less (no condensation)
2.0 A
9-1/2 (W) x 8-9/16 (D) x 3-1/16 (H) inches
240 (W) x 217.4 (D) x 77.1 (H) mm
3 lbs 12 oz
1.7 kg
Roland 1 year limited warranty
The Roland R-4 Pro shares the R-4's rugged construction, robust feature set and great sound quality, but the R-4 Pro also includes AES/EBU support, SMPTE time code and superb electronics. Record up to four channels at 24-bit 96KHz and monitor each channel discretely.
The durable DC input jack allows for industry-standard battery packs to extend your record time. Its 80GB hard drive will store up to 125 hours of high quality audio. You can plug in any standard USB drive and enjoy fast back-ups of your projects.
Like the R-4, the R-4 Pro has on-board effects and WAV editing features. Geared for pro videographers and recordists, the R-4 Pro delivers professional sound and features in a package that everyone can afford. The R-4 Pro is a part of the Roland group of field recorders.