Resident Audio T4 - Thunderbolt Audio Interface RET4

$ 249.99

The T4 from Resident Audio is Thunderbolt equipped, four input, four output audio interface with support for 24-bit/96 kHz audio and near-zero latency for virtually instantaneous recording and playback. In addition, the unit is sturdy while being lightweight and truly portable by virtue of being entirely bus powered from the Thunderbolt port. Add a pair of MIDI I/O ports and the unit extends its usefulness for both studio and live applications.

Tilted tactile gain controls with three-color wraparound LEDs allow for quickly setting optimal levels, even in low-light onstage environments. Four combo XLR/TRS input jacks accept microphones, instruments and line-level devices, with phantom power available globally for all inputs, and four balanced TRS outputs provide for connection to speakers and external mixers. An auto-detecting Multichannel Output Mode and Smart Monitoring automatically switch the outputs between stereo and mono depending upon input configuration.

When a connection is made to output jack 4, the unit operates in multichannel mode. Four discrete monophonic output signals from the computer are routed to the corresponding four output jacks, with the live input signal sent to the headphone jack only. When no connection is made to output jack 4, the interface switches to stereo mix mode and all live input signals, along with all output signals from the computer are internally mixed to stereo and routed to outputs 1 and 2. In this mode, output 3 can be used as a second headphone source.

  • Four input, four output Thunderbolt audio interface

  • Near-zero latency for virtually instantaneous recording and playback

  • Support for 24-bit/96 kHz audio

  • Four microphone preamps

  • Four combo XLR/TRS inputs, each with input gain controls and three-color wraparound LEDs

  • Four balanced 1/4" TRS outputs

  • Dedicated headphone output and secondary headphone output

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Easy 30 Day Return Policy

If you are dissatisfied with your purchase for any reason, you may return it to Kellards within 30 days of the purchase date, subject to the conditions and exclusions below.

You may initiate a return or exchange by requesting an RMA at

Securely affix your return label to the outside of the shipping package. Return shipping fees are the responsibility of the customer. We recommend you ship via insured ground service with a tracking number. We cannot be responsible for lost packages.

Return Address

Kellards Return
3237 Greenpoint Ave.
Long Island City NY 11101

Eligibility Conditions

Please read conditions below. If all conditions are not met, Kellards reserves the right to refuse the return or to charge a minimum 15% restocking fee. All returned items must be in new condition, in their original unaltered box (including an intact UPC code) and must include all packing material, blank warranty cards, manuals and accessories. Kellards can only refund the original purchase price. Shipping and handling fees are nonrefundable.

Nonreturnable Items

  • Electronic software downloads
  • Opened consumable items (e.g., film, tapes, paper, bulbs, CD, DVDs, ink cartridges, etc.)
  • Underwater equipment that has been submerged

Defective or Damaged Items

Defective items may be repaired, exchanged or refunded at our discretion for the same model or manufacturer's equivalent model.


Please allow 3-5 business days for mail-in exchanges to be processed.

Refunds & Credits

Once we receive and inspect your item(s), we will credit your account. Please allow 5-7 days for a credit to appear on your account. In most cases, we will issue your refund in the same way you made the original purchase.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.