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MOTU 624 - Thunderbolt and USB Audio Interface with AVB Networking and DSP (16 x 16, 2 Mic)

BH #MA624 • MFR #9355
MOTU
MOTU 624 - Thunderbolt and USB Audio Interface with AVB Networking and DSP (16 x 16, 2 Mic)
Key Features
  • Two Microphone Preamps with +48V
  • AVB Up to 256 Thunderbolt Channels
  • 48-Channel Software Mixer with DSP
  • Remote Control Using Web Application
Building upon the success of the MOTU 1248, the MOTU 624 - Thunderbolt and USB Audio Interface with AVB Networking and DSP (16x16, 2 Mic) offers the same quality, form, and function, but in a smaller, highly portable ½-rack space enclosure. The 624 is designed for studio recording, installed sound, and live sound-reinforcement applications such as mixing a small band in a club or music venue. The device features two balanced microphone inputs with individually switchable +48V phantom power, and two dedicated hi-Z guitar inputs. Additionally, there are four ¼” line inputs, four ¼” line outputs, and a pair of “Main” ¼” outputs. A single set of ADAT optical ports provides an additional 8 inputs and outputs for a total of 16 inputs and 16 outputs. Expansion I/O can be added to the system through AVB networking.

The audio interface utilizes ESS Sabre32 Ultra converters to provide a dynamic range of 123 dB while recording at up to 24-bit/192 kHz resolution.  Using Thunderbolt connectivity, the audio interface can stream 64 audio channels in and 64 channels out to the interface's physical outputs, the DSP-powered 48 digital routing matrix, or AVB audio network streams. The interface can also use high-speed USB 3.0 using class-compliant drivers to work with most digital audio workstations.

The 48-channel digital mixer can mix physical inputs on the interface, audio channels from your host computer software, AVB audio network streams, or mixer outputs. It features seven stereo auxiliary busses, three groups, a reverb buss that can serve as an alternate 4th group, a main mix buss, and a separate monitor buss that can function as a solo buss.

The mixer includes 32-bit floating-point precision DSP-powered models of three British analog console EQ profiles, a classic compressor module with optional peak/RMS operation, and a model of the legendary Teletronix LA-2A optical leveling amplifier with automatic gain control (AGC) characteristics. Each input channel strip features a high-pass filter, a gate, a four-band parametric EQ, and a compressor.

The first of its kind, this interface features an AVB Ethernet port that adopts the AVB industry networking standard for transporting high-bandwidth, low-latency audio and video over Ethernet. It was developed by the IEEE and enables connection to a second MOTU AVB audio interface (1248, 8M, or 16A) via a CAT-5E or CAT-6 Ethernet cable. The standard is open, meaning it is not proprietary, and will allow for interoperability across different devices and brands.

The system can be further expanded through connection to an optional MOTU AVB Switch, for five total devices, giving it the capacity to stream over 512 channels on the network. Sixteen 8-channel network streams may be broadcast while simultaneously listening to sixteen 8-channel network streams. The AVB network provides its own network-wide time base for phase locking all connected devices, and also allows one of the connected devices to be assigned as the master clock. An added benefit of the AVB network standard is the automatic device discovery for self-configuration, 100-meter cable runs, as well as the system's Stream Reservation Protocol, which provides guaranteed Quality of Service (QoS) and an uninterrupted point-to-point network connection.

The audio interface's on-board DSP, mixing, device settings, and network-audio routing can all be controlled through a web application running on a web browser from a laptop, tablet, or smartphone connected by wire or Wi-Fi to your local area network. This allows the interface to be controlled using Mac, Windows, Linux, iOS, and Android devices, provided they share the same network. By connecting an Apple Airport or other Wi-Fi router directly to the interface with a standard Ethernet cable, the mixing and DSP controls of the interface can be managed using a Smartphone or tablet, without the need for a computer.
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$795.00
$67/mo. suggested payments for 12 Mos.
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MOTU 624 Overview

  • 1Description
  • 2Quality Audio and High-End Converters
  • 3Ultra-low Latency and High-Performance MOTU Drivers
  • 4Mobile Operation and Universal Connectivity
  • 532 Simultaneous Audio Channels
  • 6DSP Mixing and Effects Processing
  • 732-Bit Floating Point Processing
  • 8Modeled Vintage Effects Processing
  • 9Flexible Matrix Routing and Splitting
  • 10Standalone Operation with Wireless Control
  • 11Web App Control
  • 12System Expansion
  • 13AVB/TSN audio networking
  • 14Optical I/O
  • 15Comprehensive Metering
  • 16Audio Desk

Building upon the success of the MOTU 1248, the MOTU 624 - Thunderbolt and USB Audio Interface with AVB Networking and DSP (16x16, 2 Mic) offers the same quality, form, and function, but in a smaller, highly portable ½-rack space enclosure. The 624 is designed for studio recording, installed sound, and live sound-reinforcement applications such as mixing a small band in a club or music venue. The device features two balanced microphone inputs with individually switchable +48V phantom power, and two dedicated hi-Z guitar inputs. Additionally, there are four ¼” line inputs, four ¼” line outputs, and a pair of “Main” ¼” outputs. A single set of ADAT optical ports provides an additional 8 inputs and outputs for a total of 16 inputs and 16 outputs. Expansion I/O can be added to the system through AVB networking.

The audio interface utilizes ESS Sabre32 Ultra converters to provide a dynamic range of 123 dB while recording at up to 24-bit/192 kHz resolution.  Using Thunderbolt connectivity, the audio interface can stream 64 audio channels in and 64 channels out to the interface's physical outputs, the DSP-powered 48 digital routing matrix, or AVB audio network streams. The interface can also use high-speed USB 3.0 using class-compliant drivers to work with most digital audio workstations.

The 48-channel digital mixer can mix physical inputs on the interface, audio channels from your host computer software, AVB audio network streams, or mixer outputs. It features seven stereo auxiliary busses, three groups, a reverb buss that can serve as an alternate 4th group, a main mix buss, and a separate monitor buss that can function as a solo buss.

The mixer includes 32-bit floating-point precision DSP-powered models of three British analog console EQ profiles, a classic compressor module with optional peak/RMS operation, and a model of the legendary Teletronix LA-2A optical leveling amplifier with automatic gain control (AGC) characteristics. Each input channel strip features a high-pass filter, a gate, a four-band parametric EQ, and a compressor.

The first of its kind, this interface features an AVB Ethernet port that adopts the AVB industry networking standard for transporting high-bandwidth, low-latency audio and video over Ethernet. It was developed by the IEEE and enables connection to a second MOTU AVB audio interface (1248, 8M, or 16A) via a CAT-5E or CAT-6 Ethernet cable. The standard is open, meaning it is not proprietary, and will allow for interoperability across different devices and brands.

The system can be further expanded through connection to an optional MOTU AVB Switch, for five total devices, giving it the capacity to stream over 512 channels on the network. Sixteen 8-channel network streams may be broadcast while simultaneously listening to sixteen 8-channel network streams. The AVB network provides its own network-wide time base for phase locking all connected devices, and also allows one of the connected devices to be assigned as the master clock. An added benefit of the AVB network standard is the automatic device discovery for self-configuration, 100-meter cable runs, as well as the system's Stream Reservation Protocol, which provides guaranteed Quality of Service (QoS) and an uninterrupted point-to-point network connection.

The audio interface's on-board DSP, mixing, device settings, and network-audio routing can all be controlled through a web application running on a web browser from a laptop, tablet, or smartphone connected by wire or Wi-Fi to your local area network. This allows the interface to be controlled using Mac, Windows, Linux, iOS, and Android devices, provided they share the same network. By connecting an Apple Airport or other Wi-Fi router directly to the interface with a standard Ethernet cable, the mixing and DSP controls of the interface can be managed using a Smartphone or tablet, without the need for a computer.

 

 

Quality Audio and High-End Converters

Renowned ESS Sabre32 DAC technology delivers 123 dB dynamic range, the same audio quality as MOTU's flagship 1248

Ultra-low Latency and High-Performance MOTU Drivers

Round-trip latency (RTL) performance as low as 1.6 ms at 96 kHz over Thunderbolt with high-performance DAW hosts

Mobile Operation and Universal Connectivity

Connects to your computer with Thunderbolt, super-speed USB 3.0 or AVB/TSN Ethernet for up to 256 audio channels (128 in and 128 out); class-compliant firmware and industry-standard drivers work with any audio apps; connects to iPad with a standard camera connection kit (adapter)

32 Simultaneous Audio Channels

2 mic inputs, 2 guitar inputs, 4 x 6 balanced analog with dedicated main outs, 8-channel ADAT optical and independent phone out for 16 inputs and 16 outputs

DSP Mixing and Effects Processing

Flexible 48-input digital mixer with 7 stereo aux busses, 3 group sends, access to 64 network inputs, and DSP effects, including reverb, 4-band EQ, gate and compression

32-Bit Floating Point Processing

The 624's mixing and effects DSP engine delivers virtually unlimited headroom and well-regarded sound quality

Modeled Vintage Effects Processing

Classic reverb, compression modeled after the legendary LA-2A compressor, and EQ modeled after British analog console EQs

Flexible Matrix Routing and Splitting

Send any input to any output or multiple outputs, such as routing to and from the computer, plus any devices on the audio network

Standalone Operation with Wireless Control

Connect an Apple Airport or other Wi-Fi router with a standard Ethernet cable for wireless control of device settings, powerful 48-channel mixing and DSP effects

Web App Control

Control everything from your favorite web browser on a laptop, tablet and smartphone connected to your local Wi-Fi network

System Expansion

Add a second MOTU AVB-equipped interface with a simple CAT-5e Ethernet cable, and connect up to five MOTU interfaces using the optional MOTU AVB/TSN Switch

AVB/TSN audio networking

Build a network with multiple interfaces and computers using standard AVB/TSN switches and network cabling, with ultra-low network latency, even over long cable runs (100 meters point to point); stream hundreds of audio channels among devices and computers on the network

Optical I/O

Connect outboard digital processors, digital mixers, or other gear, via 8 channels of ADAT at 44.1/48 kHz, 4 channels of SMUX at 88.2/96 kHz or stereo TOSLink (optical S/PDIF) up to 96 kHz

Comprehensive Metering

The full-color LCD lets you view all signal activity at a glance with detailed metering for all analog and digital I/O, and enjoy access to hardware settings from a simple and convenient menu

Audio Desk

Includes AudioDesk workstation software for Mac and Windows with 24-bit recording, sample-accurate editing, and 32-bit mixing and mastering
UPC: 839128006034

MOTU 624 Specs

Form FactorRackmount
Display1 x LCD
Channels of I/OAnalog / Digital:
16 Input / 16 Output at 48 kHz
12 Input / 12 Output at 96 kHz
8 Input / 8 Output at 192 kHz
Thunderbolt / USB 3.0:
128 Input / 128 Output at 96 kHz
64 Input / 64 Output at 192 kHz
Maximum Sampling Rate192 kHz / 24-Bit
Number of Microphone Preamps2 Preamps
Gain/Trim RangeHeadphone Outputs:
128 dB
Line Inputs:
-96 to +22 dBu
Line Outputs:
-4 to +20 dBu
Mic Inputs:
0 to +63 dB
Connectivity
Analog Audio I/O2 x 1/4" TRS Hi-Z Input
2 x XLR 3-Pin Mic Input
4 x 1/4" TRS Balanced/Unbalanced Line Input
6 x 1/4" TRS Balanced Line Output
1 x 1/4" TRS Headphone Output
Phantom Power48 V (on 2 Channels)
Digital Audio I/O1 x TOSLINK Optical ADAT / S/PDIF Input
1 x TOSLINK Optical ADAT / S/PDIF Output
Host Connection / USB1 x Thunderbolt/MDP (Thunderbolt 2)
1 x USB Type-B (USB 3.0 / 3.1 Gen 1)
Network I/O1 x RJ45 AVB / TSN
MIDI I/ONone
Performance
Maximum Input LevelLine Inputs:
+24 dBu
Mic Inputs:
+24 dBu (with Pad)
Maximum Output LevelLine Outputs:
+20 dBu (Balanced)
Headphone Output Power80 mW (Max)
Dynamic RangeOutputs:
108 dBA
Line Inputs:
117 dBA
Line Outputs:
123 dBA
Mic Inputs:
118 dBA
THD+NHeadphone Outputs:
-100 dB
Line Inputs:
-110 dB
Line Outputs:
-110 dB
Mic Inputs:
-110 dB
Digital Audio
Sample Rates44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
Compatibility
OS CompatibilitymacOS 10.8 or Later
Windows 7 / 8 / 10
Processor RequirementMac:
1 GHz Intel
PC:
1 GHz Intel Pentium
RAM Requirements2 GB, 4 GB Recommended
Storage Requirements500 GB
Required HardwareAvailable Thunderbolt Port or USB Port
Available AVB/TSN Ethernet Port or USB Port
Internet ConnectionRequired for Remote Control
Power
AC/DC Power Adapter12 to 18 VDC at 1.0 A (Included)
Physical
Rackmount Size1 RU
Dimensions8.6 x 7 x 1.8" / 21.8 x 17.8 x 4.4 cm
Weight2.2 lb / 1.0 kg
Packaging Info
Package Weight4.7 lb
Box Dimensions (LxWxH)15.05 x 11.5 x 5.65"

MOTU 624 Reviews

Works with Thunderbolt 2 on Windows 7

By Edward
Rated 5 out of 5
Date: 2020-01-31

Just purchased the Motu 624 after scouring the internet for days looking for information on a Thunderbolt audio interface that would work with Windows 7. Information on this topic is very sparse since nearly all Thunderbolt interfaces are being used on Apple Macintosh PCs. Motu lists Windows 10 as the minimum requirement for using this unit on a Windows PC equipped with Thunderbolt. I am using this interface on an HP Z-238 workstation running Windows 7 64 bit with the HP Thunderbolt 2 PCIe card installed (HP part #F3F43AT). The interface is working just fine with no evident issues and very low latency. I am using the latest Motu Pro Audio installer package (v4.0.82000) and the drivers it installs work fine on Windows 7 64 bit, running Pro Tools 12 as my DAW and using Apple's (MD861LL/A) Thunderbolt 2 cable. After doing some initial latency tests using Oblique Audio's RTL utility I can report that the Thunderbolt connection shaves about 1ms off the latency times versus using USB 3. Not a huge amount but significant if you are comparing 4ms vs 5ms (25% less). For users of Windows 7 make sure that your PCs motherboard supports Thunderbolt and also be sure the PC manufacturer offers a Thunderbolt card for that system. Thunderbolt on Windows 7 and early versions of Windows 10 works in BIOS Assist mode as opposed to the newer Native mode. This requires that your BIOS and motherboard chipset support Thunderbolt. Also, Thunderbolt PCIe cards, at least on my PC, require an addtional connection between the card and the motherboard via a jumper cable supplied with the card which plugs into a multi-pin header on the motherboard. The printing next to the header on my motherboard specifically states Thunderbolt. As far as I can tell, the whole Thunderbolt situation on Windows PCs is a bit murky and not very well documented with little technical information available. I hope this review helps those of you considering a Thunderbolt interface on a Windows 7 platform. As for my initial impressions on the 624 interface itself, I am impressed. The unit is very well constructed and has a myriad of routing options via its internal mixer. My initial test recordings (Pro Tools 12) using a Rode NT1-1 are very clean so Motu appears to have done a great job on the pre-amps and converters. Their web browser based control software works wonderfully and their drivers appear to be solid and optimized. All in all a great upgrade from my previous interfaces and well worth the investment.

Noisy Preamps

By tAp p.
Rated 3 out of 5
Date: 2017-04-15

Preamps add some noise to sound

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Asked by: Wilson
Hi, yes this interface works on Windows 10 version 1909. Thank you for shopping at B&H!
Answered by: Yitzchok
Date published: 2020-06-10

Are the mic pre-amps in the MOTU 624 the same as ...

Are the mic pre-amps in the MOTU 624 the same as their 8pre-es? I see the D/A conversion is the same, but the specs do not compare the pre-amps.
Asked by: Tristan
From the user manuals of each of these, it lists that the preamps can provide 63 db of gain. I'm pretty sure they are the same preamps.
Answered by: Jordan
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Does this interface record in 32 bit float or ...

Does this interface record in 32 bit float or just 24 bit?
Asked by: Justin
The audio interface utilizes ESS Sabre32 Ultra converters to provide a dynamic range of 123 dB while recording at up to 24-bit/192 kHz resolution.
Answered by: Mark
Date published: 2020-01-27

question

Hi! Do you check that for defects ( working,mic input level (48v) , line level inputs, sounding) before shipping , because i heard that there was problems with that audio interface. I'm going to order it and i want to be sure that it has no defects?
Asked by: tAp p.
HI, My personal experience with the Motu624 has been a positive one.I received it in early January as a replacement for my Motu2408 which is no longer compatible with my new iMac. Connected it via USB to my computer and it was recognized right immediately. I've used all inputs including both 48v. Good, clean signals all around.
Answered by: VAUGHAN M.
Date published: 2018-08-27
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