Classic ESL 9 vs Spendor A7
The A7's sensitivity is 88 dB against the Classic ESL 9's 90 dB, its impedance 8Ω against 4Ω, and its low-frequency extension 32 Hz against 34 Hz. Both share ways (2).
AI-generated product photo — not official manufacturer imagery.
LoudspeakersFloorstanding Speakers
Estimated price (community-sourced)
$3,500 - $6,375
Around — community and catalog average, updates slowly
About the Classic ESL 9
The MartinLogan Classic ESL 9 is a modern masterpiece in the flagship ESL series, combining a 9.2-inch-wide Curvilinear Line Source (CLS) XStat vacuum-bonded electrostatic transducer with dual 8-inch high-excursion aluminum cone woofers in an opposing array for reduced cabinet vibrations. It employs advanced MicroPerf stator technology, AirFrame Blade construction from aerospace-grade aluminum, and a precision Vojtko-voiced crossover with metallized film capacitors and air-core coils for seamless integration and low distortion. This completely passive design delivers life-changing audio performance with exceptional transparency, detail, and bass authority, compatible with a wide range of amplifiers.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 90 dB SPL @ 1W/1m
- Impedance
- 4Ω
- Frequency Response
- 34 Hz - 23 kHz
- Power Handling
- 400W
- Min. Amplifier Power
- 20W
- Max. Amplifier Power
- 400W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 2-way
- Driver Type
- electrostatic panel and woofers
- Driver Size
- 8"
- Driver Count
- 2
- Enclosure Type
- ported
- Crossover Frequency
- 380 Hz
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 152 × 64.6 × 26.4 mm (W × H × D)
- Weight
- 35.4 kg (78 lbs)
- Available Colors
- Walnut, Gloss Black, Dark Cherry
Key Specifications
Sensitivity: 90 dB
Impedance: 4Ω
Frequency: 34-23000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions