Motu 1248 Thunderbolt Audio Interface

Motu 1248 Thunderbolt Audio Interface



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Motu 1248 Thunderbolt Audio Interface

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A high-performance 48-channel audio interface that combines studio-quality audio with state-of-the-art features.

All Your Needs In A Single Rack Space

Motu have released their new high-performance flagship interface, delivering the worlds first Thunderbolt audio interface with 48-channel mixing and built-in AVB audio networking capabilities. As a combined sound-card and mixer rolled into one, connect directly to your PC or Mac for full control over your sound.

Motu 1248 Thunderbolt Audio Interface Features:

  • Superb Audio Quality
  • 66 Audio Channels
  • Ultra-Low I/O Latency
  • Thunderbolt Technology
  • AVB Audio Networking
  • USB 2.0 Compatible
  • Large LCD Display
  • 48 Channel Digital Mixing
  • Modelled Vintage Processing

Simply The Best

With exceptional dynamic range thanks to expertly engineered analog circuitry and the  latest-generation of Sabre32 Ultra converters, you can expect nothing but the highest quality audio from Motu's flagship interface.

Complete with an extensive array of I/O options, the 1248 boasts 4 mic inputs, 2 instrument inputs, 8 line ins, 12 line outs and seperate main and monitor outs - you'll have everything you need for an impressively versatile, yet compact studio central-interface.


Thanks to Motu's Thunderbolt technology integration, the 1248 won't even break a sweat. Boasting incredible bandwidth capable of up to 256 channels of computer I/O, you can route audio with effortless ease. Latency is kept to a complete minimum through Thunderbolt connectivity, with roundtrip latency measuring an impressive 1.4 ms, resulting in a massive loss in latency to your host software.

USB 2.0 connectivity is still an option for those who don't have Thunderbolt-equipped tech, with the standard high-speed connection proving compatible with pretty much every single computer from the past decade.

Motu 1248 Thunderbolt Audio Interface Specifications:

Sample Rates

  • 44.1
  • 48
  • 88.2
  • 96
  • 176.4
  • 192 kHz

Mic Inputs

  • 4 x XLR mic inputs
  • Preamp gain: 0 to +63 dB (digitally controlled)

Analog Inputs

  • 2 x 1/4" hi-Z guitar inputs (front panel)
  • 8 x 1/4" TRS line inputs (balanced/unbalanced)
  • Max level: +24 dBu (digitally adjustable +2 to +24)

Analog Outputs

  • 12 x 1/4" TRS line out (balanced, DC coupled)
  • Max level: +20 dBu (digitally adjustable -4 to +20)
  • 2 x 1/4" TRS stereo headphone

Digital I/O

  • 2 banks (16 ch) of ADAT optical at 1x sample rates
  • 1 bank (8 ch) of SMUX optical at 2x sample rates
  • Stereo RCA S/PDIF up to 96 kHz (with SRC on input)
  • Stereo TOSLink (optical S/PDIF) on Bank A (optional)

Total I/O

  • 32 inputs and 34 outputs (66 total) at 1x sample rates
  • 24 inputs and 26 outputs (50 total) at 2x sample rates
  • 14 inputs and 16 outputs (30 total) at 4x sample rates

Computer I/O

  • 1 x Thunderbolt (compatible with 1 and 2)
  • 1 x USB 2.0 audio class compliant
  • 1 x USB 3.0 and iOS compatible
  • 1 x AVB Ethernet (requires OS X Yosemite)

Computer I/O Channels

  • Thunderbolt (44.1 to 96 kHz): 128 in/out
  • Thunderbolt (176.4 to 192 kHz): 64 in/out
  • USB 2.0 (44.1 to 48 kHz): 64 in/out
  • USB 2.0 (88.2 to 96 kHz): 32 in/out
  • USB 2.0 (176.4 to 192 kHz): 24 in/out
  • AVB Ethernet: 16 to 128 in/out, depending on host computer speed

Sync I/O 

  • 1 x word clock in
  • 1 x word clock out


  • I/O 1 x RJ45 AVB/TSN Ethernet (1 Gbps)

AVB streams (8 channels per stream) 

  • 16 in / 16 out @ 44.1 or 48 kHz
  • 16 in / 16 out @ 88.2 or 96 kHz
  • 8 in / 8 out @ 176.4 or 192 kHz


  • 2 x 1/4" TRS stereo phone (assignable)

Phantom Power

  • 4 x individual +48V

Front Panel 

  • 2 x 1/4" TRS headphone output
  • 2 x TRS hi-Z guitar input
  • 2 x digital rotary encoders • main/monitor volume
  • 2 x digital rotary encoders • phone volume
  • 2 x digital rotary encoders • guitar input gain
  • 4 x digital rotary encoders • mic preamp gain
  • 8 x switches • (4) Pad and (4) 48V Phantom switch
  • 324 x 24 pixel LCD for level meters / menu nav
  • 1 x AC power switch


  • International 100-240V autoswitching supply
  • 50-60 Hz, 0.5A max

Dimensions & Weight 

  • (W x D x H, enclosure only)
  • 19 x 7 x 1.75 inches
  • 48.3 x 17.75 x 4.5 cm
  • 4.6 lbs / 2.08 kg
  • with rack brackets removed:
  • 17.25 inches (43.8 cm) wide
  • 4.5 lbs / 2.04 kg
More Information
Manufacturer Motu
SKU 129070
Shipping Weight (kg) 3.000000
MPN 1248
Colour black
Warranty 2 Years


We have a wide range of Delivery Options available, depending on the value of your parcel and budget. Select from our 2-3 Day Saver Service or our Next Working Day options at the Checkout.
This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you, and the drivers name - just so you know when to turn the volume down!

  • Free Delivery Available on Selected Products
  • Weekend UK Mainland Delivery (Saturday-Sunday): £19.99
  • Small Items (Under 750g) Small items will be delivered by Royal Mail starting from 99p
  • Heavy Items (Over 30kg): Pallet Service Doorstep Delivery £65

For heavy items, courier details, out of stock products, out of area postcodes or international deliveries see our full Delivery info here.


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If you and your item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

*Please note: We cannot accept returns of microphones, any in-ear earphones, monitors, orchestral instruments with mouthpieces and any other items that touch your mouth, nose or inner ear if you have removed the hygienic packaging.

Click here for more information on Returns at PMT.

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If you've changed your mind about something you bought in-store, bring it back within 14 days of purchase and we'll be happy to exchange it for another product, a gift card or store credit.