Power Saving Efficiency

REL Acoustics ST 5 User Manual

All REL sub-bass systems are designed for maximum power efficiency, when operational and also when at rest.

REL circuitry is designed for “power starvation” operation when no signal is present. However it remains at maximum readiness to respond immediately to a sudden transient signal, such as an explosion in a movie, even after an extended period of rest and at whatever level.

REL’s maximum power efficiency should not be likened to ‘auto power on/off‘ systems, which ‘power-down’ after a set period of rest (up to 10-15 minutes) and which need time to power-up again when required to reproduce a sudden transient. They invariably fail to respond to the leading edge of that transient. There is also the possibility of ‘auto power on/off‘ systems remaining inoperative during quiet listening sessions.

It is not necessary to switch the REL sub-bass system off between listening sessions; leaving it switched on will not significantly shorten its life. On the other hand, sound quality will not be affected if the system is always switched off. Power consumption in the quiescent (no signal) state is negligible. REL’s power starvation technology uses less than 4W when idle (less than 1/25th the power of a standard light bulb).

The system is perfectly safe under all normal domestic circumstances as it is fully protected by internal fuses and an external mains fuse, located in the sliding drawer of the mains input socket. There is also a spare fuse inside this drawer.

Stampede, Strata 5 specifications

The REL Acoustics Stampede and Strata 5 are two remarkable subwoofers that represent the pinnacle of modern sound engineering. Designed for audiophiles and home theater enthusiasts, these models deliver deep, rich bass that transforms the listening experience.

The REL Stampede subwoofer stands out with its powerful 12-inch active driver and a pair of 12-inch passive radiators. This unique design allows the Stampede to produce deep bass frequencies effortlessly, reaching down to 20 Hz. Its robust cabinet construction minimizes unwanted resonance, ensuring clean and precise sound reproduction. Additionally, the Stampede boasts an advanced 500-watt Class D amplifier, providing the necessary power to drive the speakers with authority and clarity.

One of the key features of the Stampede is its ability to connect wirelessly using REL’s innovative LongBow wireless system. This technology eliminates the need for long, unsightly cables and allows for flexible placement within the room, ultimately enhancing both aesthetics and sound quality. The LongBow system uses advanced transmission protocols, ensuring a stable connection with minimal latency, making it ideal for movie viewing and music listening.

On the other hand, the Strata 5 subwoofer incorporates REL's signature high-level input option, which allows for a seamless integration with a wide range of audio systems. This feature ensures that the subwoofer can work effectively with both stereo and home theater setups, providing versatility for various listening environments.

Both models also include advanced controls for tuning the subwoofer to match the specific acoustics of the listener's room. These features allow for adjustments in gain, low-pass filter, and phase settings, enabling users to achieve the perfect blend with their main speakers. The easy-to-use control panel on the rear of each subwoofer makes these adjustments simple and intuitive.

In terms of build quality, both the Stampede and Strata 5 feature elegant designs with premium finishes, ensuring they look as good as they sound. They are engineered to last, with durable materials that can withstand the rigors of extended use.

In summary, the REL Acoustics Stampede and Strata 5 subwoofers combine advanced technology, solid construction, and user-friendly features to deliver a superior listening experience that satisfies the most discerning audio lovers. Whether for music or movies, these subwoofers provide powerful, immersive bass that enhances any sound system.