Summary of Contents for MAS Marquis
- Page 1 M a r q u i s K O S T A S K O S T A S M E T A X A S M E T A X A S D E S I G N D E S I G N...
- Page 2 C o n t e n t s Aw a r d s & I n n o v a t i o n s 3 D e c a d e s o f “ H i - E n d ” L i s t e n i n g R e f e r e n c e D e s i g n P h i l o s o p h y O p e r a t i n g I n s t r u c t i o n s...
- Page 3 A w a r d s & I n n o v a t i o n s Yo u a r e a b o u t t o l i s t e n t o a m p l i f i e r w h i c h h a s e v o l v e d f r o m o v e r 2 0 y e a r s...
- Page 4 3 D e c a d e s o f H i - E n d : 1 9 8 0 ’s Ecstatic & Revelation Electrostatics Opulence Preamplifier Assembly Engraving Kostas Metaxas circa 1985 Soliloquy Monoblocks K O S T A S M E T A X A S D E S I G N...
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Page 5: K O S T A S
EMPEROR Assembly using plastic-composite moulded frame Assembly Reference System circa 1992 Assembly CZAR 2-way full range electrostatic Opulence, Marquis & Charisma Preamplifiers K O S T A S M E T A X A S D E S I G N... - Page 6 3 D e c a d e s o f H i - E n d : 2 0 0 0 ’s Using technology borrowed from Aerospace and Formula 1, the new K o s t a s M e t a x a s Audio designs reflect the extraordinary advances that have been made recently in modelling and simulation software.
- Page 7 L i s t e n i n g P h i l o s o p h y The only way to design state-of-the-art audio equipment is to have first-hand experience with the finest available recording equipment AND playback equipment. This is important for two reasons;...
- Page 8 D e s i g n P h i l o s o p h y D e s i g n P h i l o s o p h y ULTRA-SHORT SIGNAL PATH : NO-WIRE DESIGN A prominent audio designer once described an amplifier as "A straight piece of wire with gain".
- Page 9 D e s i g n P h i l o s o p h y LOW NOISE, HIGH SPEED VOLTAGE REGULATOR DESIGN. The most significant difference between VALVE and TRANSISTOR circuits is the amplifier/power supply interaction. In VALVE amplifier, the high voltages (from 200-400 Volts DC) result in a 50,000 to 100,000 Ohms value for resistor R.
- Page 10 D e s i g n P h i l o s o p h y In a normal Transistor circuit, the 'phase distortion' is 0.5% as compared to 0.000008% for a normal VALVE circuit . f = 120 Hz = 500 mA If we monitor the V+ point of the transistor circuit using an oscilloscope, we = 0 µF...
- Page 11 To ensure an absolutely stable D.C. at V+ the residual of the 10 Volt sine wave at the OUTPUT is fed through the negative feedback loop of Marquis Voltage Regulator the regulator to force the amplifier to correct this error by applying an...
- Page 12 (1000 V/microsecond) which is a result of their wide bandwidth design (an open loop frequency response greater than 500kHz) and output imped- Marquis “wholistic” approach to Line Stage/Regulator ance which is an order of magnitude better than any I.C. The regulator stability is achieved without ANY capacitors by varying the ratio between the local and overall feedback of each device.
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Page 13: O P E R A T I N G I N S T R U C T I O N S
O p e r a t i n g I n s t r u c t i o n s Steps for Connection 1. Ensure that the ON/OFF switch on the back panel is in the OFF position before connecting the amplifier into your system. - Page 14 U l r i c h M i c h a l i k , H I F I E X C L U S I V , G e r m a n y . " The Marquis Preamp imposes far less of itself on the signal, handling its chores with near invisibility".
- Page 15 W h a t t h e c r i t i c s s a y . . . The performance of various frequencies can, in two words, be described as extremely homogeneous. You will not be able to tell them apart in well recorded material, with able three way transducers.
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Page 16: S P E C I F I C A T I O N S
S p e c i f i c a t i o n s 1. LINE STAGE: The MARQUIS Line stage is optimised for operation with any incoming source including the modern Compact Disc playing machines. By virtue of its dual-mono power supply with generous high voltage rails, it is virtually impossible to overload. - Page 17 C o n t r o l s & Fe a t u r e s K O S T A S M E T A X A S D E S I G N...
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Page 18: M A I N T E N A N C E
M a i n t e n a n c e TESTING 1. Connect the + and - supply lines [at the FUSEHOLDERS or RECTIFIER DIODES] to an external current limiting Power Supply with maximum +/- 30VDC output voltage (or use 2 x 30VDC supplies). - Page 19 M a i n t e n a n c e K O S T A S M E T A X A S D E S I G N...
- Page 20 RE12 -30V RE11 CE6 CE7 RE10 JPS1 +30V DE10 DE11 DE12 Title KOSTAS METAXAS MARQUIS PRE AMPLIFIER Size Number Revision Date: 6-Jul-2003 Sheet of File: C:\MAS PROTEL\_marquis_FINAL\Marquis_Fina_UPDATEDl.ddb Drawn By: K O S T A S M E T A X A S...
- Page 21 FAX:+613992 36481 IEC 801-2 ) P r o d u c t IEC 801-3 3V/m 20dB Metaxas Marquis Preamplifier IEC 801-4 1KV (AC lines) K O S T A S M E T A X A S D E S I G N...
- Page 22 D e s i g n P h i l o s o p h y K O S T A S M E T A X A S D E S I G N...
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