Tangent Spectrum II XC white

The Tangent Spectrum II XC is a compact 4.6 kg center speaker. It features two 110 mm cellulose pulp mid-bass drivers and a 25 mm dome tweeter in a bass-reflex configuration. It delivers 80 watts RMS and 88 dB sensitivity, suited to reproducing dialogue and multichannel soundtracks.

An acoustic design tailored for voice

The Spectrum II XC uses a two-way configuration with a crossover set at 2,300 Hz. This carefully chosen cutoff frequency allows the two 110 mm drivers to handle the entire vocal range without interference, while the 25 mm tweeter naturally takes over for upper harmonics and sibilants. The bass-reflex design, with carefully sized rear ports, extends frequency response down to 55 Hz while preserving definition in the midrange.

The two mid-bass drivers operate in parallel, a layout that increases radiating surface while maintaining a coherent wavefront. This dual approach offers several acoustic benefits: better horizontal dispersion to cover a wider listening area, reduced distortion thanks to shared load between the two drivers, and increased power handling without dynamic compression. The calculated spacing between the two cones also creates beneficial acoustic coupling that reinforces vocal presence in the critical 200–800 Hz range.

The cabinet, measuring 395 × 145 × 198 mm, has an optimized width/height ratio to minimize edge diffraction while providing a sufficient front surface for stable placement under or above the screen. The construction uses medium-density panels whose thickness and internal bracing reduce unwanted coloration. The integrated protective grilles, available in satin black or white finishes, protect the drivers without creating significant acoustic obstacles.

The deliberate choice of cellulose pulp

Cellulose pulp cones are more than just a cost-effective choice—they embody an acoustic philosophy where naturalness takes precedence over showy technology. This composite material, formed from interwoven plant fibers, has intrinsic damping characteristics that are particularly favorable for vocal reproduction. Unlike uniform synthetic materials that can generate pronounced resonances at specific frequencies, the heterogeneous structure of cellulose naturally disperses vibrational energy, avoiding distortion peaks that could mask the subtleties of dialogue.

The pulp used in the Spectrum II drivers undergoes specific treatment that optimizes the stiffness-to-mass ratio while preserving the material’s natural damping qualities. This approach provides a fast impulse response—essential for consonant clarity—without sacrificing the characteristic warmth of lower vowels. The manufacturing process also ensures remarkable consistency across production units, guaranteeing perfect acoustic symmetry between the two drivers in each speaker.

The nominal 6-ohm impedance is a smart compromise between ease of drive and optimal electrical control. This value, slightly lower than the standard 8 ohms but higher than the 4 ohms of more demanding speakers, allows most home theater amplifiers to deliver their rated power without excessive thermal stress. The 12 dB-per-octave passive crossover ensures a smooth transition between ranges, preserving the tonal coherence crucial for credible voice reproduction.

Integration into the Spectrum II ecosystem

The Spectrum II lineup forms a coherent set in which each element shares a common sonic signature. The XC naturally matches the X6 floorstanding speakers for the main channels, the X4 or X5 compacts for surround effects, and the XSW8 subwoofer for sub-bass frequencies. This tonal coherence guarantees a homogeneous soundstage in which audio objects move without perceptible breaks between channels.

The Spectrum XATM speakers, designed for rendering Dolby Atmos height effects, can complement the system by adding the vertical dimension. These coaxial modules, positioned on the X6, create a three-dimensional sound dome where the XC maintains the central anchoring of dialogue. Electrical compatibility across all models simplifies system calibration, whether manually or via the automatic correction systems of modern amplifiers.

The recommended amplification range of 20 to 120 watts offers appreciable flexibility. A 50-watt-per-channel amplifier is more than sufficient for a medium-sized room, while installations in larger spaces can benefit from more generous amplification without risking damage to the drivers. The 120-watt peak capacity allows intense dynamic passages without audible compression, preserving the emotional impact of action scenes.

Technical Specifications

Transducers

• Mid-bass: 2 × 110 mm cellulose pulp
• Tweeter: 25 mm dome for precise, clear highs

Acoustic Performance

• Type: 2-way center speaker, bass-reflex
• Frequency response: 55 Hz – 20 kHz (±3 dB)
• Sensitivity: 88 dB / 1 W / 1 m
• Crossover: 2,300 Hz, 12 dB / 12 dB
• Nominal impedance: 6 Ω

Amplification

• Power: 80 W RMS / 120 W peak
• Recommended amplifier: 20 – 120 W

Dimensions and Weight

• Dimensions: W 395 × H 145 × D 198 mm
• Net weight: 4.6 kg

Compatibility

• Spectrum II range: X4 / X5 / X6 / XLCR / XATM / XSW8