![John Atkinson - Vandersteen Quatro Wood CT & M5-HPA](https://magarticles.magzter.com/articles/5798/377188/5da5aa5f8c598/JOHN-ATKINSON-Vandersteen-Quatro-Wood-CT-M5-HPA.jpg)
"Stirring the stew” is what I’ve heard it called when a company introduces a new version of a product every three or four years. When a new product is launched, sales generally rise rapidly to a maximum and then slowly decline. If the stew is stirred every few years, plotting the product’s sales volume against time results in a sawtooth wave, without sales ever dropping close to zero.
Richard Vandersteen doesn’t appear to believe in stews or stirring. Vandersteen loudspeakers stay on the market for a long time, with infrequent updates. Consider the Vandersteen Quatro loudspeaker. The original version was reviewed for Stereophile by Michael Fremer in July 20061 and cost $6995/pair, with the necessary line-level high-pass filters priced at $595/pair for unbalanced operation and $795/pair for balanced. As retailers felt the plain-Jane sock that covered the loudspeaker might be an impediment to sales, Richard introduced not a new version of the Quatro with a wooden veneer finish but a different loudspeaker, the Quatro Wood, which cost $10,700/pair without the filters and which the late Wes Phillips reviewed in December 2007.2
Twelve years later, there is a new version of the Quatro Wood, the Quatro Wood CT, which costs $15,499/pair in standard finish. Balanced line-level filters now cost $1295/ pair but are not necessary if the Quatro Wood CT is used with one of Vandersteen’s high-pass monoblock amplifiers, the hybrid M7-HPA ($59,999/pair), which I reviewed in May 2016,3 or the new solid-state M5-HPA ($15,800/pair), which I am reviewing here with the Quatro Wood CT.
The Quatro Wood CT
ãã®èšäºã¯ Stereophile ã® November 2019 çã«æ²èŒãããŠããŸãã
7 æ¥éã® Magzter GOLD ç¡æãã©ã€ã¢ã«ãéå§ããŠãäœåãã®å³éžããããã¬ãã¢ã ã¹ããŒãªãŒã9,000 以äžã®éèªãæ°èã«ã¢ã¯ã»ã¹ããŠãã ããã
ãã§ã«è³Œèªè ã§ã ?  ãµã€ã³ã€ã³
ãã®èšäºã¯ Stereophile ã® November 2019 çã«æ²èŒãããŠããŸãã
7 æ¥éã® Magzter GOLD ç¡æãã©ã€ã¢ã«ãéå§ããŠãäœåãã®å³éžããããã¬ãã¢ã ã¹ããŒãªãŒã9,000 以äžã®éèªãæ°èã«ã¢ã¯ã»ã¹ããŠãã ããã
ãã§ã«è³Œèªè ã§ã? ãµã€ã³ã€ã³
![AURAL ROBERT](https://reseuro.magzter.com/100x125/articles/5798/1623477/3as7OLE6v1709644356322/AURAL-ROBERT.jpg)
AURAL ROBERT
Another \"outlaw\" country artist
![Nina Simone: Wild Is the Wind](https://reseuro.magzter.com/100x125/articles/5798/1623477/NUudrqfCZ1709644189146/NINA-SIMONE-WILD-IS-THE-WIND.jpg)
Nina Simone: Wild Is the Wind
By all accounts, Eunice Kathleen Waymon, aka Nina Simone, who passed in 2003, was a troubled person and a brilliant artist. Why she was not more acclaimed during her lifetime is a question several recent film projects have tried to answer. Did her fierce stand on civil rights lose her fans?
![Vintage hi-fi, old and new](https://reseuro.magzter.com/100x125/articles/5798/1623477/9V169qqI41709644015708/VINTAGE-HIFI-OLD-AND-NEW.jpg)
Vintage hi-fi, old and new
Many audiophiles and serious music lovers are passionate about vintage. Vintage has become a popular \"way in\" to the hobby, especially popular among younger folks.
![Tekton Moab Be](https://reseuro.magzter.com/100x125/articles/5798/1623477/MR2cBU-h81709642995604/TEKTON-MOAB-BE.jpg)
Tekton Moab Be
LOUDSPEAKER
![ARCAM Radia A25](https://reseuro.magzter.com/100x125/articles/5798/1623477/8oNjD9G5g1709641795556/ARCAM-RADIA-A25.jpg)
ARCAM Radia A25
INTEGRATED AMPLIFIER
![Wharfedale Heritage Series 90th Anniversary Dovedale](https://reseuro.magzter.com/100x125/articles/5798/1623477/8dqAdSJVJ1709641189760/WHARFEDALE-HERITAGE-SERIES-90TH-ANNIVERSARY-DOVEDALE.jpg)
Wharfedale Heritage Series 90th Anniversary Dovedale
LOUDSPEAKER
![Technics Grand Class SL-1200/1210GR2](https://reseuro.magzter.com/100x125/articles/5798/1623477/GDbpcdYe11709640851506/TECHNICS-GRAND-CLASS-SL12001210GR2.jpg)
Technics Grand Class SL-1200/1210GR2
RECORD PLAYER
![Thrax Audio Siren](https://reseuro.magzter.com/100x125/articles/5798/1623477/ltgL2K0DI1709638801138/THRAX-AUDIO-SIREN.jpg)
Thrax Audio Siren
Based in Bulgaria, European audio company Thrax has been active since 2009.
![EMM Labs MTRS](https://reseuro.magzter.com/100x125/articles/5798/1623477/W6zv_VifQ1709636373331/EMM-LABS-MTRS.jpg)
EMM Labs MTRS
STEREO POWER AMPLIFIER
![SPIN DOCTOR](https://reseuro.magzter.com/100x125/articles/5798/1623477/cjvez7_hL1709635587345/SPIN-DOCTOR.jpg)
SPIN DOCTOR
Alternative phono cartridge technologies and the DS Audio DS-W3 optical cartridge system