Rethm Maarga loudspeaker Associated Equipment

Sidebar 2: Associated Equipment

Analog sources: Garrard 301 and Thorens TD 124 turntables; EMT 997 tonearm; Ortofon SPU Century and EMT TSD 15 pickup heads.
Digital sources: Hegel Music Systems Mohican CD player, Mytek Liberty D/A processor.
Preamplification: Auditorium 23 Hommage T1 & T2 and EMIA Phono step-up transformers, Shindo Laboratory Monbrison (2017) preamplifier.
Power amplifiers: Air Tight ATM-300R, Shindo Laboratory Haut-Brion, Shindo Laboratory Cortese, Jadis Orchestra Black.
Loudspeakers: Altec Flamenco, DeVore Fidelity Orangutan O/93.
Cables: Digital: AudioQuest Carbon (USB). Interconnect: Audio Note AN-Vx, Luna Red, Shindo Laboratory. Speaker: Auditorium 23. AC: manufacturers' stock cords.
Accessories: Box Furniture Company D3S rack (source & amplification components).—Art Dudley

COMPANY INFO
Rethm/Design Build PVT Ltd.
US distributor: Well Pleased AV
1934 Old Gallows Rd. #350-R
Tysons Corner, VA 22182
(703) 750-5461
ARTICLE CONTENTS

COMMENTS
Bogolu Haranath's picture

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' :-) ........

Bogolu Haranath's picture

DeVore Gibbon X also has similar FR as the Rethm Maarga, with additional 'dip' in the presence region :-) ......

JHL's picture

...they all have round drivers too!

Bogolu Haranath's picture

and ..... they all need amplifiers to drive them too! :-) ........

Bogolu Haranath's picture

and ....... they all need speaker wires to connect them to the amplifiers! :-) ........

Bogolu Haranath's picture

Rethm Maaga is a little bit different though ....... It has a 'whizzer cone' :-) ........

acresverde's picture

So is the full ranger 6" as stated in the "description" or 8" as stated in the "specification"?

Sea Otter's picture

"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?

John Atkinson's picture
Sea Otter wrote:
John Atkinson wrote:
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

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