REL HT-Air MKII Wireless Transmitter

The REL HT-Air MKII is the affordable, high-performance wireless solution designed to unleash your home theater. It provides a simple, plug-and-play way to send a lightning-fast, zero-compression signal to your subwoofer, granting you the freedom to place it in the acoustically perfect spot without a long, ugly cable. The HT-Air MKII is built on a fast 5.8 GHz signal, ensuring movie explosions and special effects arrive in perfect sync with the picture. It is the ideal wireless partner for the REL HT-Series (including the HT/1510 Predator, HT/1205 MKII, and HT/1003 MKII), and is also compatible with the Tzero MKIII and most other RELs (and even other subwoofers) that have a Low Level or LFE input.

Key Features

• Zero-Compression Signal: Delivers a high-speed signal with zero compression, ensuring every detail and impact from an LFE track is transmitted perfectly.
• Lightning-Fast Latency: With a latency of just 16-20 milliseconds, the bass is perfectly in-sync with the video, eliminating any lag or "lip-sync" issues.
• Robust 5.8 GHz Signal: Operates on a stable 5.8 GHz frequency, avoiding the crowded and interference-prone 2.4 GHz band used by Wi-Fi and Bluetooth.
• Purpose-Built for Theater: Engineered specifically to handle the demands of a .1/LFE signal, delivering massive dynamics and deep bass.
• Simple Plug-and-Play Setup: No complex apps or network pairing. The transmitter and receiver are pre-paired for an effortless, out-of-the-box experience.
• Universal LFE Compatibility: While designed for the HT-Series, it works with almost any subwoofer that has an LFE or Low-Level RCA input.

The Freedom of Wireless Theater

The performance of your subwoofer is dictated by its placement in your room. The HT-Air MKII gives you the freedom to place your subwoofer in the acoustically optimal position, not just where a cable can reach. By eliminating the long, unsightly LFE cable, you can achieve smoother, deeper, and more even bass response while maintaining a clean, clutter-free living space.

Zero Compression, Zero Delay

This is not Bluetooth. The HT-Air MKII is a true, high-fidelity wireless system. It uses a state-of-the-art Texas Instruments chipset to transmit a zero-compression signal. This means the full, dynamic, and textured sound from the LFE track arrives at the subwoofer intact. Critically for home theater, it does so with a latency of just 16-20 milliseconds—a delay that is imperceptible and ensures that every explosion and impact is perfectly synchronized with the action on screen.

Simple, Rock-Solid Reliability

The HT-Air MKII is designed for simplicity. It's not a complicated network device that requires an app or Wi-Fi password. It is a simple, pre-paired transmitter and receiver. You simply plug the transmitter into your AV receiver's LFE output and the receiver into your subwoofer's LFE input, and they connect automatically. It’s a rock-solid, "set it and forget it" solution that just works.

Universal LFE Solution

While it bears the "HT" name and is the perfect partner for REL's HT-Series, the HT-Air MKII is a flexible tool for any home theater. It can be used to add a dedicated .1/LFE channel to an existing system that already uses a REL via the High Level input. It is also the ideal wireless solution for the compact Tzero MKIII, and can even be used with most other subwoofer brands that feature a standard RCA LFE or low-level input.

The Listening Room Difference

We’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Specifications