Helicon 400 vs Aerial Acoustics 7B
The 7B's sensitivity is 86 dB against the Helicon 400's 88 dB, its impedance 6Ω against 4Ω, and its low-frequency extension 35 Hz against 31.5 Hz. Both share ways (3).
AI-generated product photo — not official manufacturer imagery.
LoudspeakersFloorstanding SpeakersSuper TweetersDiscontinued
Estimated price (community-sourced)
$2,200
Around — community and catalog average, updates slowly
About the Helicon 400
The DALI Helicon 400, introduced in 2004, is a medium-height floorstanding speaker known for its curvaceous design, extensive internal bracing, and high-fidelity sound. It features a 2.5-way configuration with two 6.5" wood-fiber cone woofers in separate ported chambers, a 1" soft dome tweeter, and a 10x55mm ribbon super tweeter. Praised for tonal consistency, warm bass down to 31.5Hz, neutral mids, and open treble, it offers a wide sweet spot and amplifier-friendly drive. The hardwired crossover is isolated in the base. Available in finishes like high gloss Rosenut. This model is discontinued.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 88 dB SPL @ 1W/1m
- Impedance
- 4Ω
- Frequency Response
- 31.5 Hz - 27 kHz
- Power Handling
- 300W
- Min. Amplifier Power
- 50W
- Max. Amplifier Power
- 300W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 3-way
- Driver Type
- wood-fiber woofers and soft dome tweeter with ribbon super tweeter
- Driver Size
- 6.5"
- Driver Count
- 3
- Enclosure Type
- ported
- Crossover Frequency
- 3.0 kHz
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 219 × 1026 × 457 mm (W × H × D)
- Weight
- 31.7 kg (70 lbs)
- Available Colors
- High gloss Rosenut, Cherry
Key Specifications
Sensitivity: 88 dB
Impedance: 4Ω
Frequency: 32-27000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions