REL HT-Air MKII Wireless Subwoofer Transmission System

Fast, uncompressed wireless subwoofer connectivity designed for home theater systems that demand flexibility without sacrificing performance.

Built for Modern Home Theater Systems

The REL HT-Air MKII was developed for one purpose. Deliver the convenience of wireless subwoofer placement while preserving the impact, dynamics, and speed that make a great home theater system exciting. For many enthusiasts, the ideal subwoofer location is nowhere near the equipment rack. Running a long RCA cable across the room can be inconvenient, visually distracting, and sometimes impossible.

HT-Air MKII removes that limitation. By transmitting the subwoofer signal wirelessly, it allows owners to position their subwoofer where it performs best acoustically rather than where cabling permits. The result is greater placement flexibility, cleaner room aesthetics, and often significantly better bass performance.

Uncompressed Wireless Transmission

Many wireless audio products rely on digital compression to reduce bandwidth requirements. Compression can simplify wireless transmission but often comes at the expense of dynamics, detail, and realism.

REL engineered HT-Air MKII around an uncompressed 5.8 GHz wireless platform specifically designed for subwoofer applications. This approach preserves the impact and authority of movie soundtracks while maintaining the low frequency detail required for convincing music playback. The result is a wireless connection that sounds remarkably close to a high quality wired installation.

Third Generation 5.8 GHz Wireless Technology

At the heart of HT-Air MKII is REL's third generation 5.8 GHz wireless chipset. This advanced platform provides a dedicated wireless link optimized for continuous real time transmission of low frequency information.

Unlike conventional WiFi based solutions, HT-Air MKII uses REL's own pairing protocol. Setup is exceptionally simple. Press the pairing button on the transmitter, press the matching button on the receiver, and the system is ready to operate. There are no apps to install, no network settings to configure, and no software updates required before listening.

Fast Response for Better Integration

Wireless systems are often criticized for introducing delays that can affect timing and system integration. REL addressed this challenge by designing HT-Air MKII with latency of approximately 17 milliseconds.

This fast response helps preserve the timing relationship between the subwoofer and the main speakers. Explosions retain their impact, bass effects remain synchronized with on screen action, and music benefits from improved coherence. The result is a presentation that feels immediate and engaging rather than sluggish or disconnected.

Designed for REL Serie HT and Beyond

HT-Air MKII was developed primarily for REL Serie HT subwoofers, making it an ideal companion for models such as the HT/1003, HT/1205, and HT/1510 families. These subwoofers are specifically designed for high output home theater performance, and HT-Air MKII allows them to be positioned for maximum effectiveness without cable constraints.

The system is also compatible with many non REL powered subwoofers equipped with RCA or LFE inputs. This flexibility makes HT-Air MKII an attractive solution for a wide range of home theater installations where wireless convenience is desired.

Flexible Connectivity

HT-Air MKII supports both stereo low level RCA connections and dedicated LFE connections. This allows it to integrate seamlessly with AV receivers, surround processors, powered speakers, and many other audio components.

Whether the goal is enhancing a dedicated theater room, a living room entertainment system, or a media room where running cables is difficult, HT-Air MKII provides a practical solution that preserves performance while simplifying installation.

Premium Construction

REL approached HT-Air MKII with the same attention to detail found throughout its subwoofer lineup. Both transmitter and receiver are housed in substantial cast acrylic enclosures finished with multiple layers of high gloss lacquer.

The additional mass is not merely cosmetic. REL designed the housings to remain stable even when connected to heavier interconnect cables, ensuring a secure and reliable installation. The result is a wireless system that feels every bit as premium as the components it supports.

An Easy Upgrade with Immediate Benefits

Few upgrades provide as much flexibility as wireless subwoofer placement. HT-Air MKII allows owners to experiment with positioning, improve room integration, eliminate cable clutter, and simplify installations in a matter of minutes.

For home theater enthusiasts seeking cleaner installations without sacrificing bass performance, HT-Air MKII represents one of the most affordable and practical upgrades available in the REL ecosystem.

Key Specifications Block

• Product: REL HT-Air MKII
• Category: Wireless Subwoofer Transmission System
• Price: $149
• Wireless Technology:
  • Third Generation 5.8 GHz Wireless Platform
  • Uncompressed Wireless Transmission
• Intended Application:
  • Home Theater Systems
  • Wireless Subwoofer Connectivity
• Inputs:
  • Stereo RCA
  • LFE/.1 Input
• Effective Wireless Range:
  • Approximately 40 Feet
  • Up to 12 Meters
• Latency:
  • Approximately 17 Milliseconds
• Wireless Output Power:
  • 0 dBm
• Power Input:
  • 5V DC
• Power Consumption:
  • 600 mW
• Dimensions:
  • 2.75 x 2.06 x 3.25 Inches
  • 70 x 53 x 82.3 mm
• Finish:
  • Black High Gloss
• Included Accessories:
  • Wireless Transmitter
  • Wireless Receiver
  • Two Power Adapters
  • Two RCA Cables
  • Documentation
• Warranty:
  • 3 Year Manufacturer Warranty
• Compatible Products:
  • REL Serie HT Models
  • Many Powered Subwoofers with RCA or LFE Inputs
• Setup:
  • Plug and Play Pairing System

Why Buy From All Elite Audio

All Elite Audio is an authorized dealer for REL and every brand we carry. Every product we sell is sourced directly through authorized distribution channels and includes full manufacturer support.

Call: 443-402-5055

Text: 443-402-5064

Visit: 1921 York Rd, Timonium, MD 21093

FAQ

What is REL HT-Air MKII?

HT-Air MKII is a wireless transmitter and receiver system designed to send subwoofer signals without requiring a physical RCA cable between your processor or receiver and your subwoofer. It was developed specifically for home theater applications where placement flexibility is important. The system preserves dynamics and impact while simplifying installation. For many rooms, it makes achieving optimal subwoofer placement significantly easier.

How does HT-Air MKII differ from AirShip II?

HT-Air MKII is designed primarily for home theater applications and REL's Serie HT subwoofers. AirShip II is a more advanced wireless platform intended for higher performance music and theater systems and supports REL's High Level connection philosophy. HT-Air MKII focuses on affordability, simplicity, and theater performance. AirShip II targets reference level installations.

Does HT-Air MKII use compressed audio?

No. REL specifically designed HT-Air MKII to transmit audio without digital compression. This helps preserve dynamics, bass impact, and low frequency detail. The goal is to maintain performance that approaches a quality wired connection while delivering the convenience of wireless operation. This is one of the product's key advantages.

What wireless frequency does HT-Air MKII use?

HT-Air MKII operates on a dedicated 5.8 GHz wireless platform. This frequency was selected to provide reliable performance and minimize interference. REL's third generation implementation was specifically optimized for continuous real time transmission of subwoofer information. The result is a stable and responsive wireless connection.

What is the wireless range?

REL specifies an effective operating range of approximately 40 feet or 12 meters under normal conditions. In ideal situations, users may achieve even greater distances. Most residential installations fall comfortably within this operating range. This provides significant flexibility when positioning a subwoofer.

Is there any delay with wireless transmission?

All wireless systems introduce some latency. HT-Air MKII operates at approximately 17 milliseconds, which is very fast for a wireless audio solution. This helps maintain synchronization between the subwoofer and the rest of the system. Most users find the performance highly convincing in both movie and music applications.

Which REL subwoofers work best with HT-Air MKII?

HT-Air MKII was designed specifically for REL Serie HT models. It is particularly well suited to HT/1003, HT/1205, and HT/1510 series products. These subwoofers are optimized for home theater applications and benefit greatly from the added placement flexibility. The combination creates a clean and highly effective installation.

Can I use HT-Air MKII with another brand of subwoofer?

Yes. Because the system utilizes standard RCA and LFE connectivity, many powered subwoofers from other manufacturers can also be used. As long as the subwoofer accepts standard RCA level inputs, compatibility is generally possible. We are happy to verify compatibility with your specific model before purchase.

Is setup difficult?

No. Setup is intentionally simple. Connect the transmitter to your receiver or processor, connect the receiver to the subwoofer, power both units, and press the pairing buttons. The process typically takes only a few minutes. No software or networking knowledge is required.

Where can I buy REL HT-Air MKII?

You can purchase REL HT-Air MKII directly from All Elite Audio. As an authorized REL dealer, we provide manufacturer supported products, expert system matching guidance, and personalized support before and after the sale.

Call: 443-402-5055

Text: 443-402-5064

Visit: 1921 York Rd, Timonium, MD 21093