Spire vs Ethos
The Ethos's sensitivity is 92 dB against the Spire's 91 dB. Both share impedance (4Ω), high-frequency extension (23 kHz), and power @ 4ω (200W).
AI-generated product photo — not official manufacturer imagery.
Spire
MartinLoganLoudspeakersFloorstanding SpeakersPowered LoudspeakersDiscontinued
Estimated price (community-sourced)
$3,199
Around — community and catalog average, updates slowly
About the Spire
The MartinLogan Spire is a flagship hybrid electrostatic loudspeaker that combines the company’s renowned CLS™ XStat electrostatic panel with a powered 10-inch aluminum cone woofer. This design delivers exceptional clarity, detail, and dynamic range, making it suitable for both critical music listening and immersive home theater setups. The Spire features a precision crossover derived from the CLX loudspeaker, seamless integration of electrostatic and dynamic drivers, and advanced room calibration via a 35Hz level control. Its ultra-rigid AirFrame™ construction ensures minimal cabinet resonance, while the elegant, tall profile fits well in medium to large rooms.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 91 dB SPL @ 1W/1m
- Impedance
- 4Ω
- Frequency Response
- 29 Hz - 23 kHz
- Power Handling
- 500W
- Min. Amplifier Power
- 20W
- Max. Amplifier Power
- 500W
Power Specifications
Amplification power output and characteristics
- Power @ 4Ω
- 200W @ 4Ω
Speaker Design
Driver configuration and enclosure design
- Driver Size
- 10"
- Driver Count
- 1
- Crossover Frequency
- 320 Hz
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- Custom 5-way bi-wire binding posts
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 320 × 1500 × 451 mm (W × H × D)
- Weight
- 26.3 kg (58 lbs)
Key Specifications
Sensitivity: 91 dB
Impedance: 4Ω
Frequency: 29-23000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions