Summary of Contents for CEntrance MixerFace R4
- Page 1 MixerFace R4 Mobile Recording Interface User Manual MixerFace™ and CEntrance™ are trademarks or registered trademarks of CEntrance LLC, All rights reserved. Other trademarks are property of their respective holders. Rev 8.3. 2018-08-02...
- Page 2 User Manual Recording Studio, in Your Hand These days, your smartphone or tablet is not only your Digital Audio Workstation, but also your means of sharing content with the world online. MixerFace R4 takes advantage of this environment connecting your audio sources with the digital ecosystem, making it the ultimate mobile recording interface.
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Page 3: Table Of Contents
MixerFace R4 User Manual Table of Contents FEATURES AT A GLANCE......3 TOP PANEL CONTROLS ......7 FRONT PANEL FEATURES......16 BACK PANEL FEATURES......18 TROUBLESHOOTING STEPS ....26... -
Page 4: Features At A Glance
MixerFace R4 User Manual Features at a Glance One of the most impressive features of MixerFace R4 lies in its digital technology, which connects the built-in pristine analog preamplifiers to your phone and tablet’s audio capturing app(s) for recording and playback. - Page 5 MixerFace R4 User Manual Connectivity Options Despite R4’s small footprint, its front and back panels pack multiple connectors for inputs and outputs. R4’s strength is in its extensive connectivity options. There are a total of four analog inputs and six analog...
- Page 6 192kHz, and resolutions up to 24-bit, meeting the most demanding needs of today’s content producers. Phantom Power MixerFace R4 offers +48V phantom power on channels 1 & 2, enabling you to use professional condenser microphones. Unlike other devices, it offers true +48V, which means you can use it with any condenser microphone in your mic locker.
- Page 7 MixerFace R4 User Manual indicate signal present (“SIG”) and Red LEDs indicate overload or peak (“PK”). • White LEDs turn on when the input signal level is 40dB below clipping. • Red LEDs turn on when the signal is 6dB below clipping.
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Page 8: Top Panel Controls
MixerFace R4 User Manual Top Panel Controls Top panel controls, as described below... - Page 9 MixerFace R4 User Manual Channel Switches All switches are active when the lever is moved to the right. The levers are recessed to prevent accidental adjustment. Use a thin, sharp object, such as a paperclip, toothpick or a pen tip to slide the lever to the right to activate the feature.
- Page 10 (“Hi-Z”) inputs. This means you can connect MixerFace R4 directly to electric guitar and bass to record anywhere. Recording different instruments signals is possible. For example, connect a Microphone to Channel 1 and Guitar to Channel 2, or record Guitar on one channel and mono keyboard on the other.
- Page 11 MixerFace R4 User Manual • Slide the lever to the left to engage the “Line” position. Hi-Z input disconnected input gain reduced to accommodate line-level sources on the ¼” jacks. • Slide the lever to the right to engage the “Hi-Z” feature per channel. Ideal for connecting electric guitar and bass.
- Page 12 MixerFace R4 User Manual “High Pass Filter”, which more appropriate name, if you want to get technical about it. The 6dB/octave cut is below 130Hz. GAIN Control MixerFace preamplifiers have a wide gain adjustment range of over 55dB. This covers a variety of applications –...
- Page 13 MixerFace R4 User Manual Signal Peak & Present LEDs The White LED labeled “SIG” illuminates to indicate “signal present”. This happens when the audio level at the input of the A/D converter reaches -40dB. The white LED stays illuminated until the signal drops below the -40dB threshold.
- Page 14 MixerFace R4 User Manual Blend Controls (CH — USB) Blend controls adjust the mix between the zero latency input signal and USB playback. This allows you to strike a balance between the inputs on Ch 1 or 2 (CCW) and the stereo...
- Page 15 MixerFace R4 User Manual You will find this knob useful when playing your instrument over a backing track fed from the computer. Another use of this feature is in Voiceover, where you need to narrate over a music bed streaming from the computer. In both cases you can adjust the blend to taste.
- Page 16 MixerFace R4 User Manual AUX 3/4 Control The Aux 3/4 knob adjusts the level of the stereo signal fed into the Auxiliary input (line input) located on the back panel. You can connect an MP3 player or another source to this input in order to play along with a click track, a prerecorded track or to overdub.
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Page 17: Front Panel Features
MixerFace R4 User Manual Front Panel Features The Front panel contains combo input and balanced output connectors. Inputs 1 and 2 MixerFace R4 features Neutrik combo XLR jacks for connecting mic, line-level sources, electric guitar, bass, etc. - Page 18 1/8” (3.5mm) balanced outputs on the front panel. Use these outputs to connect MixerFace R4 to external powered monitors. The 3.5mm outputs use industry-standard TRS pinout, with “Hot” connected to the left (tip), “Cold” connected to the right (ring) and “Common”...
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Page 19: Back Panel Features
MixerFace R4 User Manual Back Panel Features Back panel controls are explained below. Power Button The power button turns the power on/off. - Page 20 LEDs rapidly blink to indicate: “bye-bye”. Charger Connection MixerFace R4 will charge from any standard 5V charger by connecting a USB cable to the right hand side micro USB jack, located next to the battery LED indicators. For best results, use a charger that offers at least 2A of output current.
- Page 21 This LED works independently of the power switch and only tracks the battery charging status. Battery Operation MixerFace R4 will operate for about 8 hours on a full charge. Phantom power and certain...
- Page 22 USB socket on the back panel of MixerFace R4. The MixerFace R4 is now ready to be a used as a USB recording interface. Note: For iOS devices, a Lightning to USB adaptor is required.
- Page 23 (R4 is great for coffee shop gigs). Line Output (Aux Out) The 1/8” stereo Line output can connect to another device such as a DSLR camera. This way MixerFace R4 serves as a high-quality preamp your camera, which dramatically improves your video’s audio...
- Page 24 MixerFace R4 User Manual Headphone Output MixerFace R4 can accommodate a wide range of headphones for monitoring. It features a 1/8” (3.5mm) headphone jack and a clean, powerful headphone amplifier using technology from the CEntrance audiophile product line. Headphone models with lower impedance (25…50 Ohms) will generally...
- Page 25 MixerFace R4 User Manual MONO Switch MixerFace R4 allows you to monitor recorded audio in Mono and Stereo. In Mono Mode, each input channel is monitored in both ears. This is useful for recording from mono sources, such as interviews, spoken word, guitar and bass, etc.
- Page 26 MixerFace R4 User Manual Output Level Switch This switch adjusts the level at the 1/8” (3.5mm) line output (aux output) jack. This control does not change the level at the balanced output jack. • Use the Low position with DSLRs, which only have a mic-level input.
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Page 27: Troubleshooting Steps
MixerFace R4 User Manual Troubleshooting steps Here are some quick troubleshooting steps in case your product is misbehaving: Symptom Cause Resolution All LEDs are off, Battery is dead Connect a no sound is charger to the right USB jack heard... - Page 28 MixerFace R4 User Manual Symptom Cause Resolution Input is clipping Wrong input Switch to line- jack used level inputs; Adjust gain Guitar is too Hi-Z mode not Check the Hi-Z quiet enabled switch Camera Line Output too Set line output...
- Page 29 CEntrance, LLC www.centrance.com info@centrance.com tel: 833-CENTRANCE (833-236-8726) We spent a long time painstakingly developing this product. We want to thank you for your support and wish that MixerFace R4 brings you many years of quality service! - The CEntrance Team...