Resident Audio T4 4-Channel Thunderbolt Audio Interface 24-Bit 96-kHz (B-STOCK)
Resident Audio T4 4-Channel Thunderbolt Audio Interface 24-Bit 96-kHz (B-STOCK)
The world's first bus-powered four-channel Thunderbolt™ interface
The Resident Audio T4 is the first ever four-channel Thunderbolt™ audio interface which requires no external power—a breakthrough in the worlds of live performance and recording. It adds four channels of I/O to Thunderbolt-equipped Mac and Windows computers*, with support for high-resolution 24-bit/96kHz audio and near-zero latency for virtually instantaneous recording and playback.
The lightweight and portable T4 comes with all required software drivers and a ton of innovative features such as an auto-detecting Multichannel Output Mode and Smart Monitoring, which automatically switches between stereo and mono depending upon input configuration. Four combo XLR / ¼" input jacks allow you to plug in microphones, instruments and line-level devices— with phantom power for all inputs—and there are four balanced TRS outputs for connection to speakers and external mixers. MIDI connectors enable the T4 to be used as an ultra-stable MIDI interface, and there are even dual headphone outputs. Tilted tactile gain controls with three-color wraparound LEDs allow you to quickly set optimal levels, even in low-light onstage environments.
Whether you’re in the studio, on the stage or in the DJ booth, the T4 provides the perfect interface between your computer and your performance.
Innovative Design
The T4 offers a number of features that make recording and live performance easy. These include a "Big Knob" master volume control; an Input Mix control for blending live signal with computer playback; Smart Monitoring, which allows you to easily switch between stereo and mono monitoring; and two different modes of operation: Stereo Mix mode, optimized for the studio, and Multichannel mode, perfect for live performance.
Great Sound
The T4 allows you to record and play back audio with awesome sound quality. Unlike USB devices (which can only carry a maximum of 2.5 watts of bus power), Thunderbolt allows for a full 10 watts of power to be carried over the same wire as the audio signal. This allows us to use higher quality components in the T4, such as custom designed analog preamps (the T4 has eight of them—two for each channel) and high-power A/D/A converters.
Everything Included
Setting up the T4 is fast and easy. It comes with everything you need: a Thunderbolt cable, a QuickStart guide, and a USB card preloaded with all required software and user manual. Simply plug it in, install the drivers, and you're good to go.
The T4's drivers have been programmed by some of the best engineers in the industry. They're specifically designed to ensure stable performance and minimal CPU overhead, allowing your computer to focus on tasks like effects processing and real-time graphic display.
Built with both the studio and the road in mind, the T4 is mounted in a sturdy aluminum/acrylic chassis that can stand up to the wear and tear of an artist on the go. And because it doesn't need a power cable, it can easily be integrated into any live performance rig.
Inputs and Outputs
The T4 provides four combo XLR / ¼" inputs, switchable between Mic, Line or Instrument level, complete with phantom power. In addition, there's a dedicated stereo headphone output and four ¼" TRS balanced outputs, one of which can be used as a secondary stereo headphone output. Last but not least, MIDI in/out connectors allow you to use the T4 as a MIDI interface with an ultra-stable clock that keeps all your sequencers and drum machines perfectly locked to audio playback.
In live performance, the T4 effectively turns your computer into an instrument with multiple outputs—great for electronic musicians and DJs. In the studio, you can selectively route audio to different mixer channels and outboard signal processors to create complex effects.
Controls
Each T4 channel has a dedicated input gain knob and a three-color wraparound LED signal indicator, allowing you to easily set optimal levels even in low-light onstage environments. In addition, an Input Mix control (with its own three-color wraparound LED) enables you to set the perfect blend of input signal with the output signal coming from your computer, and a Big Knob volume control sets the level of connected headphones as well as the overall monitoring level.*
Each pair of T4 channels also has a dedicated INST/LINE switch. This is used to set the inputs to instrument-level or line-level and also determines the Smart Monitoring setting.
Operating Modes
The T4 operates in one of two different modes, depending upon output configuration.
Multichannel Mode
When a connection is made to Output jack 4, the T4 operates in Multichannel mode, with four discrete monophonic output signals from your computer routed to the corresponding four Output jacks. In Multichannel mode, live input signal is sent to the headphone jack only.
Stereo Mix Mode
When no connection is made to Output jack 4, the T4 operates in Stereo Mix mode. In this mode, all live input signal, along with all output signal from your computer, is internally mixed to stereo and is routed to Outputs 1 and 2. In Stereo Mix mode, you can use Output 3 as a second headphone jack.
Smart Monitoring
The T4's unique Smart Monitoring feature allows you to switch between stereo and mono monitoring, depending upon input configuration. Monophonic monitoring allows you to remove one set of cans and still hear the sound of everything in one ear—great for vocalists and DJs.
Connectors
Input | 4 x Combo XLR mic / balanced ¼" TRS, line / instrument level
Output | 4 x balanced ¼” TRS line-level
1 x stereo ¼" headphone output
(optional second headphone output via Output 3)
MIDI | Input / Output
Thunderbolt port | 1 (bus-powered)
Controls
Trim | 4 (1 per channel) with 0 to +35 dBu mic gain range
LED clip indicator | 5 (1 per channel and 1 for Input Mix)
Line / Instrument switch | 2 (Inputs 1 & 2 / 3 & 4)
Phantom Power | On/Off +48V (global for all channels)
Input Mix | Blends live input signal with computer output signal
Big Knob | Controls headphone level and monitoring level (Stereo Mix mode only)
Preamplifiers
Microphone
Connector | XLR Female
Input Impedance | 1.5k Ohm
Dynamic Range | > 92dB
Gain Range | +15dB ~ +60dB (45dB range)
Maximum Input at Minimum Gain | -1dBu
Equivalent Input Noise | -124dBu (Gain +60dB @150 ohm termination)
Total Harmonic Distortion + Noise | > 0.009% (@1kHz, -1dBFS)
Line
Connector | TRS 1/4” Phone
Input Impedance | 9.2k Ohm
Dynamic Range | > 95dB
Gain Range | +0dB ~ +45dB
Maximum Input at Minimum Gain | +15dBu
Total Harmonic Distortion + Noise | > 0.008%
Instrument
Connector | TS 1/4” Phone
Input Impedance | 1000k Ohm
Dynamic Range | > 91dB
Gain Range | +0dB ~ +45dB
Maximum Input at Minimum Gain | +15dBu
Total Harmonic Distortion + Noise | > 0.01%
Audio
Bit resolution | 24-bit
Sampling rates | 44.1, 48, 88.2, 96 kHz
Mac®- and Windows®-compatibility | Recommend Mac OS X 10.9 Mavericks or higher, Windows 8 or higher
Supports | ASIO, Core Audio, Windows Audio Session API (Windows 8)
Hardware
Preamps | 2 per channel, mic / instrument
Chassis | Aluminum/Acrylic
A/D/A converters | More than 100dB dynamic range
Smart Monitoring | Stereo or Mono, selected by Line/Instrument switch
Stereo Mix mode | All inputs and outputs to Outputs 1 & 2 plus Output 3
Multichannel mode | 4 individual output channels
Dimensions | 10.6 x 4.4 x 1.8 in.
Weight | 2.3 lbs
Windows Computers
- Thunderbolt equipped system running Windows 8.0
- Internet connection or USB port (needed for driver installation)
Macintosh Computers
- Thunderbolt equipped system running OSX 10.9 or later
- Internet connection or USB port (needed for driver installation)
| Condition | B-Stock |
|---|---|
| SKU | ZOOM-RAT4-BSTK |
| UPC | 4024006084 |