Unmatched Bass Performance with the TERA Subwoofer: The Ultimate Active Subwoofer Solution

Experience exceptional bass with the TERA subwoofer, a compact yet powerful active subwoofer designed to complement our high-fidelity loudspeakers like YOCTO, ATTO, EXA, and YOTTA. This all-aluminum cube subwoofer measures just 330 mm per side and features a symmetric arrangement of two long-excursion 10" drivers on the left and right sides, delivering the output equivalent to a 15" subwoofer from a space-efficient enclosure.

Crafted from robust 15 mm aluminum, the TERA's monolithic design ensures superior structural integrity and minimal internal cabinet resonances, addressing common challenges faced by high-end subwoofers. With its integrated amplifier and DSP, the TERA offers seamless integration of professional electronics, enhancing sound quality while maintaining reliable performance.

This scalable subwoofer system can be used in pairs or expanded to meet your power needs, providing unmatched versatility. The TERA's cube design, with internal dimensions of just 330 mm, minimizes standing waves and resonance effects, ensuring clean, low-distortion bass reproduction.

While conventional MDF cabinets are cheaper, the aluminum construction of the TERA subwoofer eliminates 99% of structural vibrations, resulting in a smooth 2nd harmonic response. Its symmetrical driver arrangement cancels out transducer-induced vibrations, creating a vibrationally balanced system that maintains sound purity.

For those seeking the best in audio fidelity, closed (sealed) cabinets like the TERA are the ideal choice. Unlike reflex cabinets, transmission lines, and horns, which can introduce unwanted coloration, the TERA provides pure, uncolored bass, ensuring your music sounds exactly as intended.

The Advantages of Smaller Drivers: Why 10", 12", and 15" Woofers are Superior for Audio Performance

Smaller woofers, such as 10", 12", and 15" drivers, provide faster response times, enhanced precision, and a broader frequency range, making them ideal for both music and cinema applications. These compact woofers are more energy-efficient and produce less distortion at high volumes, ensuring a cleaner listening experience. Stacking small woofers significantly amplifies these benefits, allowing for greater sound pressure levels (SPL) while maintaining clarity and control. This setup offers a superior frequency balance compared to a single large woofer, which often suffers from slower response times, increased distortion, and limited performance advantages below 20 Hz due to minimal audio content in that range.

For home theater systems, the extended frequency response of smaller woofers is crucial in preserving low-frequency harmonics, which are essential for a natural and immersive sound experience. This guarantees that bass is not only powerful but also rich in texture, contributing to the depth and realism of sound effects. Conversely, large woofers (21", 30", or more) can muddle the audio, overemphasizing certain frequencies and requiring excessive power without providing meaningful clarity or control.

Stacking small woofers optimizes the distribution of low-frequency sound, delivering deep, controlled bass without sacrificing precision or seamless integration with mid and high frequencies. This approach enhances the overall listening experience by maintaining harmonic integrity and avoiding the excessive, unbalanced sound typically associated with large woofers. While extreme sub-bass below 20 Hz may occasionally impress, it is often unnecessary and can disrupt the sound balance. A system with good frequency extension in the 20-30 Hz range delivers a more cohesive and immersive audio experience.

In summary, small woofers—especially when stacked—offer superior speed, precision, and frequency extension, making them the ideal choice for both music and cinematic applications. They ensure clear, balanced, and immersive audio with deep bass that enhances rather than overwhelms the soundstage, making your listening experience truly exceptional.

Integration of High-End Electronics for Superior Subwoofer Performance

Power is ineffective without precise control. Subwoofers installed in a room generate room modes (standing waves), which can significantly impact audio quality by adding and subtracting energy from music. To achieve high-end reproduction, it is crucial to address these issues through professional-grade Parametric EQs and advanced DSP algorithms. With over 30 years of experience in professional audio, Lange Loudspeakers SA understands the importance of a solid low-frequency foundation. Key parameters such as Parametric EQ, limiters, time alignment, and crossover types are essential for proper subwoofer integration.

The TERA subwoofer delivers an impressive 1200W @ 8Ω, driving two long-excursion 10” drivers with 15mm of usable excursion. Class D amplification is perfectly suited for low-frequency reproduction, maximizing efficiency, dynamic range, and minimizing distortion. Power consumption in standby mode is less than 0.5W, while idle power is just 13.5W. The entire aluminum cabinet facilitates optimal thermal dissipation, ensuring that the amplifiers remain cool even under heavy use.

For users seeking control and fine-tuning capabilities, all necessary tools are integrated into the cabinet and accessible via an RJ485 port and compatible software. Lange Loudspeakers SA or your local distributor can assist you in the tuning process, ensuring that the TERA subwoofers align seamlessly with our mid-high frequency loudspeaker systems.

Scalable Power for Enhanced Audio Experience

Most subwoofers are designed around large cone drivers to achieve higher sound pressure levels (SPL). While this method works well for very low frequencies, it often compromises the dynamics in the higher frequency spectrum. Large drivers also have heavy moving parts, require substantial cabinet space, and draw excessive power. In contrast, TERA subwoofers are designed for scalability, allowing multiple units to be used together while maintaining a compact footprint.

Designed and manufactured in Switzerland by Lange Loudspeakers SA, this exceptional subwoofer offers years of reliable performance, near-perfect sound reproduction, remarkable power, and a premium finish that stands out in any audio setup.

Technical features

Configuration - Sealed Cabinet - All aluminum

Drive Units - 2 x long excursion 10” drivers

Frequency Response (-3dB) - 33,5 Hz to 200 Hz

Sensitivity - 87dB 1W @ 1 meter

Amplifier - 1200W 8Ω / 2 x 600W 4Ω class D 

Enable - Auto-Turn on by signal detection

Auto-Turn Off when signal is absent for 10 minutes

Internal processing - 56-bit internal processing

User Storage - Up to 4 local presets

Latency - 1.02 ms fixed latency architecture

Connectors

XLR (Balanced) – INPUT

XLR (Balanced) Loop-Trough

Ethernet port DSP Input

Neutrik PowerCon AC Connector

Dimensions 330 mm / 13” each side (cube)

Weight - 35,5 Kg Net Weight (78,25 lbs.)

AC Mains Power

Power supply - Switch Mode with PFC

Nominal voltage - 100-240 V AC @ 50-60Hz

Operating Voltage - 90-264 V AC

Power Factor - cos = 0.9 @ 360 W

Consumption Standby  < 0,5 W - Idle < 13,5 W

Rated Load (1/8 Max Power) - 220 W @ 8Ω

Frequency response acquired in half space condition (free field), 1 Watt input @ 1 meter - 24dB/Oct. 100Hz Low Pass filter inserted, -3dB @ 33.5 Hz 

Harmonic Distortion acquired in half space condition (free field), 1 Watt input - 1 meter - 24dB/Oct. 100Hz Low Pass filter inserted

Impedance offered by the two 10" LF Drivers to the integrated amplifier 

TERA Integrated DSP - PEQ, Phase, Time Alignment in 3,43 mm steps, limiters, HP filter & LP filter from 6dB Oct. to 48dB Oct. and much more can be settled.