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Wilson Sasha DAW frequency response is somewhat similar to the Rethm Maarga ......... See, manufacturer's comment ..... Sasha DAW also has a 'dip' in the presence region in addition to midrange 'dip' :-) ........
Description: Floorstanding loudspeaker with a single horn-loaded full-range driver and a pair of powered, isobaric-loaded woofers. Drive units: 8" twin-cone driver with 25mm-diameter voice-coil and high-compliance surround; two 6" × 9" paper-cone woofers. Frequency range: 28Hz20kHz. Sensitivity: 98dB/W/m. Nominal impedance: 8 ohms. Minimum required amplifier power: 2W.
Dimensions: 41.2" (1035mm) H × 7.5" (190mm) W × 21.6" (550mm) D. Weight: 62lb (28kg).
Finishes: Piano black or wood veneer sides with metallic gray pipes, standard; additional colors available as extra-cost options.
Serial numbers of units reviewed: MA A 02 19 & MA B 02 19. Made in India.
Price: $10,750/pair. Approximate number of dealers: 8. Warranty: 5 years, parts and labor.
Manufacturer: Rethm/Design Build PVT Ltd., X/574-C, Kusumagiri PO, Kakkanad, Cochin, India 682 030. Tel: (91) 9349226365. Web: rethm.com. US distributor: Well Pleased AV, 1934 Old Gallows Rd. #350-R, Tysons Corner, VA 22182. Tel: (703) 750-5461. Web: wellpleasedav.com.
Wilson Sasha DAW frequency response is somewhat similar to the Rethm Maarga ......... See, manufacturer's comment ..... Sasha DAW also has a 'dip' in the presence region in addition to midrange 'dip' :-) ........
DeVore Gibbon X also has similar FR as the Rethm Maarga, with additional 'dip' in the presence region :-) ......
and ..... they all need amplifiers to drive them too! :-) ........
and ....... they all need speaker wires to connect them to the amplifiers! :-) ........
Rethm Maaga is a little bit different though ....... It has a 'whizzer cone' :-) ........
So is the full ranger 6" as stated in the "description" or 8" as stated in the "specification"?
"I found several high-Q modes in the midrange on all the surfaces (fig.2). Given the Maarga's very high sensitivity, this behavior is unlikely to be audible."- JA
I am curious as to JA's reasoning behind this statement. Sensitivity is an electrical parameter, or how much electrical input is required to get a specific acoustic output.
I do not understand why the sensitivity of the loudspeaker. Would have anything to do with the excitation of resonnant modes in the enclosure. The sidewalls of the speaker should be effectively "blind" to the electrical input, only responding to the mechanical and acoustical output of the speaker cone. As most investigations have shown that it is primarily the acoustic pressure transmitted through the air inside the enclosure, which excite midrange modes, even the fact that the cone may be slightly lower in mass should have little impact.
Would you help me understand your reasoning behind your statement?
I found several high-Q modes in the midrange on all the surfaces (fig.2). Given the Maarga's very high sensitivity, this behavior is unlikely to be audible."I am curious as to JA's reasoning behind this statement.
I measure a loudspeaker enclosure's vibrational behavior with a standard input voltage. This means that the higher the speaker's sensitivity, the greater the output of the drive-units compared with that of the enclosure.
John Atkinson
Technical Editor, Stereophile