REL Acoustics HT-Air MKII

Overview

The REL Acoustics HT-Air MKII is a wireless transmission system designed to send a full range low frequency signal to a compatible REL subwoofer without running a physical cable across the room. It pairs a compact transmitter with a matching receiver so you can place a sub where the bass integrates best rather than where the wiring is easiest. This second generation design improves range, reliability and latency over the original, making it well suited to both music and home theater installations.

The HT-Air MKII connects at the source using REL's low level and .1/LFE inputs, then transmits to the receiver that feeds the subwoofer's input stage. Because it removes the long interconnect run, it is a clean solution for rooms where the subwoofer sits away from the electronics, or where a floor cable is not practical. The system is tuned for low latency so bass stays in time with the main channels, which is essential for the timing and blend REL is known for.

This accessory is aimed at anyone integrating a REL subwoofer into a room where cable routing is difficult, from apartment dwellers to custom installers finishing a dedicated theater. It preserves the sub's character while giving you flexibility in placement, which is often the single most important factor in achieving deep, tuneful, well blended bass.

Key Features

• Second generation REL wireless system with improved range and reliability
• Low latency transmission keeps bass in time with the main channels
• Compact transmitter and receiver pair for a clean, cable free run to the subwoofer
• Connects via REL low level and .1/LFE inputs at the source
• Ideal for placing a subwoofer where it integrates best rather than where wiring is easiest
• Suited to both two channel music and home theater setups
• Simple pairing between transmitter and receiver for straightforward installation
• Reduces floor cable clutter for tidy custom installations

How the HT-Air MKII Compares

REL HT-Air MKII vs REL Arrow

The Arrow is REL's higher wireless solution built to carry the signature high level connection wirelessly for two channel music, so the subwoofer follows the exact character and timing of the main amplifier. The HT-Air MKII focuses on a low level and .1/LFE wireless link that shines in home theater and simple line level integration. Choose Arrow when a music first high level path is the priority, and HT-Air MKII when you want a straightforward wireless run from line level or LFE sources. See the REL Arrow.

REL HT-Air MKII vs Audioquest JitterBug FMJ

The JitterBug FMJ is a USB data and power noise filter aimed at cleaning up digital source connections, a very different job from the HT-Air MKII. The HT-Air MKII solves subwoofer placement by removing the interconnect run entirely. They address separate parts of a system and can happily coexist in the same setup. See the Audioquest JitterBug FMJ.

REL HT-Air MKII vs Audioquest SorboGel Q-Feet

The SorboGel Q-Feet are isolation feet used to decouple a component from its shelf or floor, targeting mechanical vibration. The HT-Air MKII instead tackles signal delivery, letting you position a REL subwoofer freely without a cable. One improves mechanical isolation while the other improves installation flexibility. See the Audioquest SorboGel Q-Feet.

Works With These REL Subwoofers

The HT-Air MKII lets you place any of these REL subwoofers where the bass integrates best without a floor cable, connecting at the source and feeding the subwoofer's input stage wirelessly for a clean install.

• REL HT/1205 MKII A dedicated home theater 12 inch sub that pairs naturally with the HT-Air MKII when it sits away from the processor. Wireless removes a long LFE cable run across the room.
• REL T/7x A music focused T/x sub that benefits from flexible placement. The HT-Air MKII carries the line level signal so you can position it for the best blend.
• REL T/9x A 10 inch T/x performer that often needs to sit in a corner or wall away from the electronics. Going wireless keeps the room tidy while preserving placement freedom.
• REL Classic 99 A vintage inspired 12 inch design that suits open plan rooms. Wireless connection keeps cabling out of sight while you dial in the ideal spot.

Frequently Asked Questions

What is the REL HT-Air MKII?
It is a wireless transmission system that sends a subwoofer signal from your source to a compatible REL subwoofer without a physical cable run across the room.

How does it connect?
The transmitter connects at the source using REL's low level and .1/LFE inputs, then transmits to a receiver placed near the subwoofer that feeds the sub's input stage.

Does it work with any REL subwoofer?
It is designed to work across the current REL range. Match it to your specific model and its input options for the best result, and our team can confirm compatibility.

What is new in the MKII version?
The second generation design improves range, reliability and latency compared with the original HT-Air, making integration more robust.

Is there a delay or latency with wireless?
The system uses a low latency design so bass stays in time with the main channels, which is essential for proper blend in both music and theater.

Can I use it for two channel music?
Yes. It carries the line level signal and works for music as well as home theater. If you want a wireless high level music first path, ask us about the REL Arrow instead.

How is this different from the REL Arrow?
Arrow carries REL's signature high level connection wirelessly for a music first path, while the HT-Air MKII focuses on a low level and .1/LFE wireless link ideal for theater and simple line level integration.

Will it improve my bass quality?
It does not change the sub's sound directly, but it lets you place the subwoofer where the bass integrates best, which is often the single biggest factor in deep, tuneful bass.

Does it need power?
Yes. Both the transmitter and receiver are powered by their supplied adapters.

How far can it transmit?
The MKII offers improved range over the original for typical room installations. For unusual layouts, contact us so we can advise on placement.

Can I run two subwoofers wirelessly?
REL subs can be run in stereo pairs or stacked arrays. Reach out and we can help you plan a wireless approach that fits your configuration.

Is it hard to set up?
No. Pairing the transmitter and receiver is straightforward, and it removes the need to route a long cable across the floor.

Does it replace the high level Speakon connection?
The HT-Air MKII uses REL's low level and .1/LFE inputs. If you specifically want a wireless high level connection, the REL Arrow is designed for that.

Is it good for apartments and rentals?
Yes. It is a clean solution when you cannot or prefer not to run a floor cable, and it keeps the installation tidy.

Will it reduce noise or interference?
By removing a long interconnect run it reduces cable clutter and routing issues. It is purpose built for reliable subwoofer transmission.

Does it come with everything needed?
The system includes the transmitter, receiver, power supplies and connection cables to get started.

Can custom installers use this?
Yes. It is well suited to custom installations where cable routing is difficult, such as finished theaters and open plan rooms.

What warranty does it carry?
It is covered by REL Acoustics for the original owner. Register your product with REL to keep the coverage valid.

Which subwoofer should I pair it with?
It works with HT and T line subs for theater and line level use, and with higher grade S, Classic, Planar and Black Label subs when placement flexibility matters. See our recommendations above.

Why buy from All Elite Audio?
All Elite Audio is an authorized REL Acoustics dealer in MD with this system in stock. You get genuine product, full manufacturer warranty support and expert guidance on matching it to your REL subwoofer and room.