Superlux HD669 -Closed Professional Studio Headphone Product features: Ideal as stage monitor and in the studio High external noise reduction Linear response with defined, powerful bass Circumaural Closed Dynamic Neodymium magnets Peak SPL: 98 dB Impedance 56 Ohm Frequency range: 10 - 30,000 Hz Power capacity: 200 mW Detachable cable 1 m and 3 m cables with 3.5 mm stereo jack

A Special Edition of UA's Acclaimed Desktop 10 x 6 Thunderbolt 3 Audio Interface w/ Realtime UAD DUO Core Processing and Two Unison™ Mic Preamps — for Mac and Windows.

Apollo Twin X Heritage Edition has all the benefits of the acclaimed Apollo Twin X, including elite-class A/D and D/A conversion, DUO Core realtime UAD plug-in processing, Unison-enabled mic preamps, and full LUNA Recording System integration. And it goes a step further, with a software suite of 5 award-winning UAD plug-in titles, featuring Collections from Teletronix®, Pultec®, and UA.

The Universal Audio Apollo Twin X is a premium desktop audio interface designed for professional music production, offering exceptional sound quality and real-time processing capabilities.

Key Features

• 2 Unison™ Mic Preamps – Emulate classic analogue gear like Neve and API.

• Real-Time UAD Plug-In Processing – Track and mix with near-zero latency.

• High-Quality Audio – 24-bit/192 kHz resolution with excellent clarity.

• Multiple Inputs/Outputs – Includes 2 combo mic/line inputs, Hi-Z instrument input, ADAT input, monitor and line outputs.

• Thunderbolt 3 Connection – High-speed, low-latency connection (Mac preferred).

• DSP Options – Available in DUO (2 cores) or QUAD (4 cores) versions for more plug-in processing power.

• Compact Desktop Design – Durable, space-saving build ideal for home or studio use.

The Universal Audio Apollo Twin USB Duo Heritage Edition is a professional USB audio interface featuring dual Unison™‑enabled microphone preamps and UAD‑2 DUO Core DSP processing for real‑time tracking through classic analog preamp, compressor, EQ, and guitar amp emulations. It supports high‑resolution 24‑bit/192 kHz A/D and D/A conversion and includes a selection of premium UAD plug‑ins as part of the Heritage Edition bundle.

Designed with USB 3.0 connectivity, this interface is suitable for Windows recording setups and provides flexible monitoring options with dedicated outputs and front‑panel headphone monitoring.

The Universal Audio Apollo Solo USB is a professional desktop USB audio interface offering high‑resolution 24‑bit/192 kHz A/D and D/A conversion with Realtime UAD Processing and Unison™‑enabled microphone preamps for real‑time classic preamp and amplifier emulations. It enables recording vocals, instruments, and synths with detailed monitoring and onboard UAD plug‑in effects at near‑zero latency.

Designed for Windows USB‑compatible systems, Apollo Solo USB includes essential UAD plug‑ins such as compressors, EQs, reverbs, and guitar/bass amp emulations as part of the “Realtime Analog Classics” bundle. Its rugged desktop form factor and external power supply make it suitable for home, mobile, or project studio setups.

The Universal Audio Apollo x4 is a desktop Thunderbolt 3 audio interface that delivers professional-grade recording and mixing capabilities. It features elite-class Apollo X Gen 2 audio conversion with 24-bit/192 kHz resolution for high-fidelity capture and playback. Four Unison™‑enabled microphone preamps provide real‑time emulation of classic analog preamp tones. QUAD Core UAD DSP processing lets users track and mix with UAD plug-ins at near-zero latency. Fully featured monitor control supports alternate speaker switching, talkback, and subwoofer integration. Apollo x4 also includes optical I/O for ADAT or S/PDIF expansion and operates via Thunderbolt 3 connectivity.

The Universal Audio Apollo x8 is a professional Thunderbolt audio interface engineered for high‑end music production, recording, and mixing workflows. It features 18×24 simultaneous inputs and outputs, including four Unison‑enabled mic preamps for authentic analog emulation and expanded analog connectivity via line, digital, and word clock I/O.

Equipped with elite‑class Apollo X Gen 2 converters, the interface delivers premium 24‑bit / 192 kHz resolution with Dual‑Crystal Clocking, providing ultra‑low jitter and extended dynamic range for accurate capture and playback.

Onboard HEXA Core UAD DSP processing allows real‑time tracking and mixing with UAD plug‑ins, enabling producers and engineers to integrate classic effects and analog emulations into their workflows with near‑zero latency. Updated UAD Console software includes features such as Auto‑Gain, Plug‑In Scenes, subwoofer integration with Bass Management, and immersive monitor support.

The Apollo x8 also incorporates a monitor controller with alternate speaker switching, talkback, and surround control, supporting formats up to 7.1 for immersive audio production. The interface is compatible with major DAWs and integrates seamlessly with additional Apollo units for expanded studio configurations.

The Universal Audio Apollo x8p is a professional Thunderbolt audio interface designed for high‑end studio recording, mixing, and production workflows. It features eight Unison™‑enabled microphone preamps for real‑time emulation of classic analog preamp hardware and HEXA Core UAD DSP processing to run UAD plug‑ins with near‑zero latency.

Apollo x8p delivers premium 24‑bit/192 kHz analog‑to‑digital and digital‑to‑analog conversion with dual‑crystal clocking for ultra‑low jitter and pristine recording fidelity. It supports up to 7.1 surround monitoring and integrates surround and immersive audio workflows (speaker calibration and downmix).

This rackmount interface is built to scale with professional studios, offering extensive 16×22 I/O, multiple mic/line combo inputs, line outputs, headphone outputs, and comprehensive integration with major DAWs via Thunderbolt 3 connectivity. Apollo interfaces can also be expanded by cascading with other Apollo units.

The Universal Audio Apollo x16 Gen 2 is a professional Thunderbolt audio interface designed for high‑end recording, mixing, and immersive audio production. It delivers 18×20 simultaneous inputs and outputs via DB‑25 and AES I/O and features flagship elite‑class Apollo X converters with 24‑bit/192 kHz resolution and Dual‑Crystal Clocking for ultra‑low jitter performance.

Onboard HEXA Core UAD DSP processing enables real‑time tracking and mixing with UAD plug‑ins in major DAW environments. The interface also supports immersive audio formats up to 9.1.6 (Dolby Atmos, Auro‑3D, Sony 360 Reality Audio) and includes comprehensive monitor control with multiple speaker switching and talkback.

Apollo x16 Gen 2 integrates seamlessly with professional studio workflows, offering Apollo Monitor Correction, alternate monitoring paths, and deep DAW integration via the updated UAD Console software.

The Universal Audio Apollo Solo is a desktop Thunderbolt 3 audio interface offering 24‑bit/192 kHz audio conversion, dual Unison™ microphone preamps, and realtime UAD plug‑in processing for recording and mixing with low latency. It enables recording through classic mic preamp and guitar amp emulations and includes a suite of UAD plug‑ins for compressors, EQs, reverbs, and more.

Apollo Solo provides detailed monitoring via a high‑performance headphone amplifier and operates as a bus‑powered interface, suitable for desktop and portable studio setups. Thunderbolt 3 connectivity ensures compatibility with Mac and Windows systems.

The Universal Audio Volt 2 Studio Pack is a studio recording bundle designed to provide professional audio capture for music production, livestreaming, and podcast creation. It combines a portable 2-in/2-out USB-C audio interface with a condenser microphone, closed-back headphones, and essential recording software. The interface supports high-resolution 24-bit / 192 kHz conversion and includes vintage-style mic preamp circuitry for added tonal character.

The Zoom R16 MultiTrack Recorder Interface Controller is a versatile all-in-one production device that integrates a 16-track recorder, USB audio interface, DAW control surface, and multi-function sampling features in a single compact unit. Designed for musicians, producers, and content creators, the R16 supports high-quality recording, flexible connectivity, and intuitive control for studio, live, and field workflows.

The Zoom R24 MultiTrack Recorder Interface Controller Sampler is a multifunctional production tool that integrates a stand-alone 24-track recorder, USB audio interface, DAW control surface, and pad-based sampler in one compact unit. It supports full fidelity 16/24-bit WAV recording, built-in stereo condenser microphones, eight mic/line/instrument inputs, more than 100 onboard DSP effects, and advanced sequencing and sampling capabilities, making it suitable for studio, mobile, and hybrid workflows.

The Zoom R8 MultiTrak is a portable 8-track recorder that combines multi-track recording, audio interface functionality, controller capabilities, and pad-based sampling in a single compact unit. It is designed for musicians and producers who require flexible recording and production tools for studio and mobile workflows.

The R8 supports SD card recording, offers built-in stereo condenser microphones, and functions as a USB audio interface and control surface for DAW integration.