4 IN x 8 OUT USB Audio Interface and Control Center for iPad and Mac

Apogee Quartet is a professional USB audio interface designed to deliver the ultimate desktop recording experience to the iPad and Mac-based studio. Featuring 4 inputs and 8 outputs of Apogee’s industry-leading AD/DA conversion technology as well as 4 world-class mic preamps, Quartet bridges the gap between the 2-channel Apogee Duet and Apogee’s flagship interface, Symphony I/O.

Quartet for iPad and Mac features special circuitry designed to deliver professional performance for iPad use along with low latency USB 2.0 performance for Mac. Quartet’s MIDI I/O connector lets you connect and power a Core MIDI compatible keyboard/controller while using Quartet with your iPad or iOS device.

Legendary Sound Quality

Why Apogee Quartet is the best choice for your studio

Apogee is an award-winning industry leader in digital recording technology with over 25 years of experience. Preferred by recording pros around the world, Apogee products like Duet, Ensemble and Symphony I/O have been instrumental in creating countless GRAMMY® and OSCAR® winning recordings and have set the industry standard in professional recording for over two decades. Quartet is built solidly on this reputation.

Charges iOS device.

Quartet charges the iPhone, iPod Touch, or iPad when connected so your work is not interrupted.

4 analog inputs.

4 analog inputs with world-class mic preamps and selectable 48v phantom power for connecting microphones, instruments or line-level devices.

Works with iOS and Mac.

Direct connection with Lightning  iOS devices (iPhone, iPod touch, iPad) and USB connection to Mac.

Maestro app for iOS and Mac.

Software control of hardware parameters including input selection and low latency monitoring.

iOS 7 compatible

Works with iOS 7 on iPad, iPhone, iPod touch

Sound Quality

The Apogee Advantage

A difference you will hear

From the mic preamps to the AD/DA converters and the clocking, Quartet is best-in-class and cutting-edge Apogee technology. With components carefully selected in critical listening tests and a highly efficient circuit design, Quartet was built by Apogee engineers to make a difference you can hear.

Pristine, next generation
AD/DA converters

Quartet’s AD/DA converters are designed to deliver the purest recordings and best listening experience possible. Quartet’s efficient circuitry and state-of-the-art components provide a simplified signal path resulting in incredibly transparent recordings.

Smooth, detailed world-class
mic preamps

Much like the AD/DA converters, Quartet’s mic preamps feature the latest components and offer seamless click-free transitions as the gain increases and decreases throughout the incredible range of 0-75dB. This unprecedented feature allows you to dial in the perfect level, either with the controller knob or from within software, while delivering ultra-low noise and smooth, crisp detail. Quartet’s mic pres are suitable for all dynamic, condenser or ribbon microphones, allowing you to capture any sound without compromise.

Soft Limit for protection from
digital overs

An Apogee technology first introduced in 1992 on Apogee’s AD-500 converter, Soft Limit can be heard on countless platinum selling records around the world. Once a technology exclusively reserved for Apogee’s most advanced audio converters, Soft Limit is included in Quartet and can be enabled in Apogee Maestro software.

This superior analog design prevents the digital clipping that causes distortion by instantaneously rounding off transient peaks before they hit the analog-to-digital converter. Soft Limit allows several more decibels of apparent level to be recorded while subtly providing an analog-like warmth to the sound.

ESS Sabre32 DAC Technology

ESS Sabre32 32-bit Hyperstream DAC with Time Domain Jitter Eliminator offers unequalled dynamic range, ultra low distortion, and unmatched audio clarity free from input jitter.

ESS-Sabre-32

While ESS Sabre32 DAC has been widely recognized and employed in the audiophile community as the next step in converter technology, Apogee is one of the first pro audio manufacturers to employ this DAC in an interface designed for audio and video professionals. ESS Sabre32 DAC technology, as employed in Duet 2, Duet for iPad & Mac, Quartet and Symphony I/O, is one ingredient in the Apogee Engineering Difference. The benefits of the ESS Sabre32 DAC include:

32-bit DAC Architecture - Compared to older 24-bit technology, the Sabre32 DAC’s 32-bit filter processing  results in significantly lower noise and distortion, for a pure listening experience free from artifacts. 32-bit digital attenuation ensures that sonic purity is maintained at any listening level.

Time Domain Jitter Elimination removes clock inconsistencies from the incoming digital data, so the converted analog output preserves the clarity and soundstage detail of the original recording.

Apogee Quartet Product Tour

All the I/O You Need

Inputs & Outputs

Analog Inputs

Quartet is equipped with 4 combination input connectors (XLR and 1/4”) for connecting microphones, guitars and keyboards or your favorite external mic preamps, compressors and EQs.

Digital Input

Quartet also includes 8 channels of digital input via 2 optical connections (ADAT/SMUX) for connecting an additional analog-to-digital converter such as Apogee’s Ensemble.

Analog Outputs

Quartet’s 6 balanced 1/4” TRS outputs offer an impressive range of possibilities. Listen and compare stereo mixes on up to three sets of speakers.

Word Clock

Quartet provides Word Clock OUT for synching an external A/D converter to Apogee’s superior clocking technology.

MIDI

Quartet provides a single USB MIDI connection for your CoreMIDI compatible keyboard, synth, or DJ controller.

Expand Your Studio I/O

Digital inputs with Apogee Ensemble

USB aggregation with Apogee Duet

12 IN x 8 OUT

For Ensemble users that need more inputs, Quartet’s digital input connection allows you to use the premium analog inputs and preamps of both devices simultaneously. Enjoy a combined total of 12 analog inputs (8 with mic pres) along with Quartet’s 8 analog outputs, assignable Touchpads, and advanced control capabilities. Quartet’s USB connection lets you continue enjoying Ensemble’s high-quality Mic Pres and AD conversion with the latest Mac Models and lower latency than ever possible with Firewire 400.

Using Quartet with Ensemble>

Connections:

  • Quartet: USB to Mac
  • Ensemble: ADAT/Optical (standalone mode) to Quartet
  • Total Analog Inputs: 12
  • Total Mic Pres: 8
  • Total Analog Outputs: 8
  • Requires Word Clock connection
    • WC OUT from Quartet to WC INPUT of Ensemble
      or other interface

6 IN x 12 OUT with 6 mic preamps

Duet users can add more channels of high-quality Apogee conversion to their existing setups by adding Quartet. Connect both Quartet and Duet to your Mac’s USB ports and aggregate the two devices for a combined total of 6 analog inputs and 12 analog outputs of premium Apogee AD/DA conversion.

Using Quartet with Duet 2>

Connections:

  • Quartet USB to Mac
  • Duet: USB to Mac
  • Total Analog Inputs: 6
  • Total Mic Pres: 6
  • Total Analog Outputs: 12

Control

See it, Select it, Dial it in

See your I/O in detail

Dual, high-resolution displays show all input and output details

Quartet features twice the display you came to love with Duet. Two high-resolution OLEDs deliver all the visual feedback critical for recording and monitoring. Without looking at your computer, Quartet lets you see metering, levels, grouping and phase, muting, phantom power and Soft Limit for all inputs and outputs.

Quickly select I/O & functions

QuickTouch pads for input and output selection

Quartet makes it easy to access all important recording and monitoring functions. Simply tap a QuickTouch pad on Quartet’s top panel to select an input or output and easily adjust your level with the controller knob. All input and output touchpads feature an LED highlight ring. The highlight ring of the active touchpad is brighter so you can see at a glance which input or output is selected.

The ABCs
of Quartet’s assignable features

Three additional configurable touchpads (labeled A, B, C) allow you to quickly access output functions such as “Mute Outputs”, “Dim Outputs”, “Sum to Mono”, “Clear Meters” or “Engage Speaker Set” selection. Each function can be assigned to a touchpad using a drop-down menu within Apogee’s Maestro application.

Monitor control

Speaker set selection

The A, B, C selectors above the controller knob can be configured in Apogee’s Maestro software to switch between up to 3 pairs of speakers allowing
you to use Quartet just like a standard monitor controller. Simply connect 1, 2 or 3 pairs of studio monitors and tap to select which pair you would like to listen to.

Dial it all in

Quickly adjust input gain and output level with Quartet’s control knob

Apogee’s Duet started an audio interface revolution with its single controller knob design. Quartet continues this tradition. A single machined aluminum knob completes Quartet’s control center. With a tap to the touchpad you can select the desired input or output and precisely dial in your level.

Design

Solid build quality

Built with die-cast aluminum, steel and a scratch-resistant display panel hardened by UV processing, Quartet is solid, compact and perfectly integrated into the desktop studio environment.

Quartet Viewer

Roll your mouse over the image below and see the Quartet from a different angle

Music Creation on iPad

A revolution in personal & professional recording

Apple’s iPad is an incredible audio recording and music creation tool. Starting at $399, it is by far the most accessible, reliable and dynamic way to make music.

iPad puts you in touch with your creativity

Interacting with iPad to make music is like playing an instrument. In fact, some apps like Apple’s GarageBand turn your iPad into a guitar or virtual instrument. Whether you are moving faders on a mixer, adjusting software parameters, or editing a waveform, iPad’s multi-touch interface is a more hands on environment and superior to mouse clicks or track pad swipes.

Setting up your studio has
never been easier

iPad makes everything easier with a simplified user interface and plug and play connectivity for accessories like Apogee audio interfaces. You’ll be amazed by how simple it is to set up your studio.

There’s a music app for everything

There are hundreds of music apps for iOS and iPad. With multi-track recording DAWs like GarageBand and Auria, synths and drum
machines like Animoog and DM1, utilities and guitar effects like Audiobus andJamUp Pro, the music creation offering for iPad
is vast and varied. And most apps are more affordable than their Mac based counterparts.

Share your music

Sharing functionality is built-in to most apps, making it easier then ever to move files and collaborate on different devices including iPad to Mac

Pro I/O Meets iOS

Apogee. The first to make professional recording on iPad a reality.

Apogee pioneered studio-quality recording on iPad with JAM, the first digital guitar input and MiC the first professional digital microphone for iPad. JAM was featured in Apple’s iPad 2, GarageBand launch video. Now with ONEDuet and Quartet, Apogee is the first to introduce professional multi-track recording interfaces to the world of iPad and iOS. These products complete this amazing platform by offering musicians, producers and engineers professional tools for music recording, production and listening.

Superior sound quality

For almost 30 years, Apogee has been setting the standard in digital audio recording technology with award-winning products.

Maestro control software for iOS

Apogee ONE, Duet and Quartet are the first audio interfaces to feature software control made for iPad and iOS devices. Apogee’s Maestro lets you access all hardware parameters and monitor with a low latency mixer.

Direct digital connection to iPad

Apogee ONE, Duet and Quartet for iPad and Mac feature special circuitry that makes a direct digital connection to iPad and iOS devices and is certified by Apple’s MFi (Made for iOS) program.

DC power charges iPad

In audio, adequate power is essential for excellent sound quality. With a direct digital connection and an external power source, ONE, Duet and Quartet are able to charge your iPad while you record so your work will not be interrupted.

Apogee Maestro Software

Mac and iOS application for low latency monitoring
and control of Apogee audio interfaces

Advanced Software Control
for Advanced I/O

Access all control functions and settings with Maestro, Apogee’s comprehensive software control application. Maestro features a single window interface with quick access to all device and system settings. Select your input type, enable Soft Limit on mic and instrument inputs, and use the mixer for low latency monitoring. Maestro lets you easily configure your Apogee interface to fit your workflow.

All new Maestro developed for iPod touch, iPhone and iPad

Apogee’s new free Maestro app for iOS brings total hardware control to iPad. Designed to create a seamless transition between Mac and iOS, Maestro’s design was customized for each device; iPhone, iPad and Mac, ensuring an intuitive user interface across every platform. The app includes all the same essential functions available on the Mac including low latency monitoring. Maestro can be downloaded for free from the Apple App Store on your iPod Touch, iPhone, or iPad.

USB 2.0

High Speed, High Performance

Faster than FireWire

Quartet features USB 2.0 High-speed connectivity to Mac. Advances in the Mac’s Core Audio driver have made USB faster than FireWire 400 with incredible latency performance. And there’s a USB port on every Mac.

…and as fast as USB 3.0

While USB 3.0 offers approximately 10x the bandwidth of USB 2.0, USB 2.0 far exceeds the bandwidth Duet requires for its 2 inputs and 4 outputs, delivering exceptional audio performance without compromise.

Related Apogee Knowledgebase articles:

Apogee Quartet Artists

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Jason Agel - Mixing and Recording Engineer

Recent Projects: John Legend, Prince, Rick Ross, Estelle, Michael Bolton, Common
“Apogee's Quartet is a great sounding interface, that enables a professional workflow in a home studio device. With excellent converters, a great stereo image, and an intuitive monitoring interface, I would recommend this interface to any producer or engineer.”
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Nora Kirkpatrick - Musician/Actress

Recent Projects: Edward Sharpe and the Magnetic Zeros
“The Quartet is so easy, it takes the stress out of recording and lets you get straight to the music. I initially tried to run my accordion through a series of pre-amp's and EQ's before channeling it through the Quartet, but at the end of the day, the best sound was achieved using the Apogee pre-amps on their own.”
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Diplo - Grammy Nominated DJ, Producer, Songwriter

Recent Projects: Major Lazer, Diplo, Usher, Santigold, Bruno Mars, M.I.A.
“This is still a home studio, and it's got the vibe like that, but the Quartet makes it sound as good as it can possibly sound.”

Apogee Quartet Image Gallery

Apogee Quartet Customer Reviews

Exceptional

GoldStars

“This interface is exceptional. The pres and converters are crystal clear, and the functionality, build quality, ease of use, and features are all outstanding. If you have a budget interface, you WILL notice a huge difference with this piece of gear! I had it up and running in minutes, and it has performed flawlessly ever since.”

Matt from USA
From Sweetwater

Worth Every Penny

GoldStars

“The sound quality is amazing and the functionality is better than any other interface I’ve ever used. It’s big enough to have a presence in the lab, but small enough sit on my Avalon and still allow it to breath. I bought it as a backup and mobile solution when my Avid Omni went in the shop for repair and it hands down holds its own in comparison. It’s also extremely stable. I have to reinstall Pro Tools HD to find my Omni and thunderbolt interface quite often, but I’ve only had to do one install with this box and its ran flawlessly ever since. I buy equipment all of the time and this is the first review I’ve ever been this compelled to write. I love my Avid Omni, but us creative enthusiasts tend to appreciate when a product has a solid price to quality ratio, and this box hit the nail on the head in that regard. The Quartet lived up to the hype and exceeded all of my expectations. It is truly a beast….”

Marcus Polo from Memphis
From Sweetwater

Coming from Metric Halo and this thing is amazing!

GoldStars

“This is only the 3rd or 4th thing I have ever reviewed online because I generally think it is a waste of time. However when a product is this great it deserves recognition”

CP from San Francisco, CA
From Sweetwater

Apogee Quartet Press Reviews

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“For a remote recording rig, combined with an iPad, (Quartet) is a stellar and very compact option. This is the first USB all-in-one rig that I’ve encountered where I truly felt like I could make a record and not feel like apologizing for any audio compromises. It’s that good.”

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“The preamps and converters in the Quartet don’t sound like a cheap circuit with the Apogee name; they have that Apogee sound. Rather than just being honest and transparent, it would be fairer to say that nothing is lost, but they do seem to add a little sparkle to the top end. When capturing the subtleties of the creaks and finger drags and the little details that make an acoustic performance feel real, the preamps of the Quartet and the One leave nothing to be desired. The same could be said about the way they record vocals. With all the breath and humanity that they preserve, the recorded performance is really true to itself…In general, the Quartet is a rock-solid music creation station. It’s serious, professional, looks fantastic and sounds even better. The features are just right, no frivolity. The iOS bonus just made it that much better.”

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“While there are many manufacturers whose audio interfaces support iOS (RME, Focusrite, and others), Apogee are arguably more serious than most about their interfaces being used with iOS devices. The Quartet (like the company’s One and Duet interfaces) now comes with both 30-pin and Lightning cables, in addition to a regular USB cable for use with a Mac. And, best of all, that 30-pin or Lightning cable is also able to power and charge your iOS device. This is a really big deal since the majority of audio interfaces that can be connected to an iOS device don’t have such capability, meaning you only get one charge’s worth of music or audio work with the interface attached.”

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“If you’re really serious about capturing quality audio and you’re looking for a device that works not just with your iPad, but you can also use with a Mac, you might want to consider the Apogee Quartet. The Quartet is definitely the priciest of the devices we’ve looked at in this series, but you can really feel the quality throughout this device. From its solid metal construction to the quality components, to the warm rich tones it captures.”

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“In this review I went through the acrobatics of “setting aside the fact that this is an iOS-compatible gizmo” because one must first realize that the Quartet is one serious interface. Up to 12 inputs, 8 outputs, full monitor management, low-latency mixing, extremely flexible studio control, MIDI integration, and more, all combined with the sound that made Apogee famous… it all adds up to the Quartet being a very heavy hitter in the DAW-hardware arena. Once you’ve grasped that, then you can add in that it makes a brilliant portable iOS audio/MIDI solution, one that takes the iPad’s processing power seriously when paired with the right apps.

Whether you believe the future is in the palm of your hand or you’re still solidly siding with the tried-and-true Mac platform… or if you want to be able to move between both worlds and rely on top-quality interfacing no matter what… then the Quartet is a sound investment that will pay major dividends in your final mixes.”