Digital Broadcasting Interface


Building on our award-winning MixerFace, PortCaster makes mobile recording easy for podcasters, broadcasters, DJ's and talk show hosts. While the award-winning MixerFace is optimized for Music, PortCaster is optimized for Voice. PortCaster is a mobile audio interface for Podcasting, Live streaming and Videos. With this handheld, portable mixer you can host your own live talk show, with music and guests. A combination of Mobile Mixer, Recorder, and USB Audio Interface, PortCaster features warm, analog sound and a rechargeable battery for 8 hours of work in the field.


Free Shipping

Out of stock

Add to quote
Qualifies for free shipping
  • Main Features:
  • Capture sound anywhere with the award-winning PortCaster — a studio-quality recording and streaming interface for smartphones, tablets and computers.
  • Featuring two boutique, low-noise Jasmine™ microphone preamps with 48V phantom power, it transforms your smartphone into a full-featured portable podcasting studio, or live streaming device.
  • Complete with two independent limiters, low cuts and mix-minus phone patch to add a remote guest to your podcast, PortCaster creates an end-to-end mobile recording solution for creatives: Podcasters, Journalists, Videographers and Voiceover Artists.
  • Used by Radio Stations and Houses of Worship to stream live events, PortCaster is a sturdy, compact, powerful audio interface for your phone, tablet of computer. It works with Android, iOS, MacOS, Windows and Linux.
  • PortCaster features a rechargeable battery and includes a built-in, “one-button record", stereo micro-SD card recorder for extra in-the-field flexibility and recording redundancy.
  • Dual recording mode: Stream to social media online, using your phone, and also record a copy of your program to the internal SD card recorder, for safety and easy access. Such level of flexibility is unmatched in any existing field recorders.
  • Specifications:
  • Phantom power: 48 V, 10 mA max per channel
  • Mic Preamplifier Gain: +0 dB…+65 dB
  • Mic input impedance: 1 kOhm
  • High Pass Filter: 130 Hz, 6 dB/octave roll-off
  • Freq. Response: 20 Hz…20 kHz ±0.5 dB
  • EIN: -127 dB
  • THD+N: 0.004%
  • Crosstalk, 1kHz: -95 dB
  • Aux 3/4 max input level: 2.2 V rms / +9.2 dBu, rel 0 dB FS
  • Line-level output: 1.8 V rms / +7.1 dBu, rel 0 dB FS
  • Output Impedance: 1 Ohm (headphone output)
  • Headphone output power: 400 mW (total) at 32 Ohm
  • Supported Headphones: 16…600 Ohm
  • Gain Switch: 46 dB pad (set low to feed DSLR)
  • Resolution, USB: 16-bit, 24-bit
  • Sample Rate, USB: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.2 kHz, 192 kHz
  • Clocking: Two custom, mil-spec clocks, 10 ppm precision, 1 ps jitter
  • Compatibility: iPhone, iPad, Android, Mac, Linux, PC. Driver is available for Windows
  • USB jacks: USB-C type
  • Micro SD Card: Use Class 10 or better, up to 256GB capacity micro SD card with the R4R model
  • Recorder specs: Independent of the USB output, internal recorder operates at 24-bit/48kHz
  • Recorded files: Stereo WAV files
  • Mic Preamps: Jasmine™ technology, dual-stage, discrete transistor differential mic preamplifier
  • Dual Limiters: Dual, independent, photovoltaic limiter/compressors, with soft-knee transfer function
  • Headphone Amp: AmpExtreme™ technology with bipolar power supply
  • AC Adapter: Supports standard 5 Volt chargers / adapters with a USB “micro B” cable
  • DC Charging: +5 V from USB adapter, such as iPad charger. 2 A or more recommended
  • Analog Supplies: Battery-isolated, triple-filtered ±7 V analog power supply rails
  • Digital Supplies: Five independent, high-efficiency switch-mode power supplies
  • Chassis Material: Aircraft-grade aluminum, hard-anodized for scratch resistance, black
  • Rechargeable Battery: Li-Polymer, 8 hours play/record time (varies with phantom-powered mics)
  • Unit Dimensions: 121 mm (4.76″) (L), 70 mm (2.76″) (W), 36 mm (1.42″) (H)
  • Unit Weight: R4S: 260 grams (9.1 ounces), R4D: 275 grams (9.7 ounces)
  • Box Dimensions: 161 mm (6.33″) (L), 111 mm (4.37″) (W), 42 mm (1.65″) (H)
  • Box Weight: 455 grams (1 lb)
  • Included accessories: Quick Start Guide, Velvet carry pouch, Cable for charging or USB audio. Note: Micro SD Card not included.