Martinsound Martech Modular Studio Series Manuel utilisateur
MSS-10
Modular Studio Series
Microphone Preamplier
2
5
1151 W. Valley Blvd. Alhambra, CA 91803-2493
800.582.3555 • Phone +1.626.281.3555 • Fax +1.626.284-3092
www.martinsound.com
Owner Manual
MSS-10
Natural Sound
Microphone Preamplier
0 9
© 2001 Martinsound, Inc. All rights reserved.
Under the copyright laws, this manual may not be copied, in whole or in part, without the
written consent of Martinsound.
Every effort has been made to ensure that the information in this manual is accurate.
Martinsound is not responsible for printing or clerical errors.
The Martech and Martinsound logos are Trademarks of Martinsound, Inc.
Other company and product names mentioned herein are trademarks of their respec-
tive companies. Mention of third-party products is for informational purposes only and
constitutes neither an endorsement nor a recommendation. Martinsound assumes no
responsibility with regard to the performance or use of these products.
Safety Warnings
Introduction
Microphone Preamplier
Line Driver
To Ground Or Not To Ground?
Rear Panel
Balanced Impedance Outputs
Getting The Most out Of Your MSS-10
Block Diagram
Operation
Setting Voltage • Changing the Fuse
Technical Specications
Design Team
A Short History
Table of Contents
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4
5
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8
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12
13
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17
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1
The lightning ash with arrowhead symbol within an equilateral tri-
angle is intended to alert the user to the presence of uninsulated
“dangerous voltage” within the product’s enclosure that may be of
sufcient magnitude to constitute a risk of electric shock to persons.
Le symbole éclair avec point de èche à l’intérieur d’un triangle équi-
latéral est utilisé pour alerter l’utilisateur de la présence à l’intérieur
du coffret de «voltage dangereux» non isolé d’ampleur suf sante
pour constituer un risque d’électrocution.
The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
Le point d’exclamation à l’intérieur d’un triangle équilatéral est
employé pour alerter l’utilisateur de la présence d’instructions impor-
tantes pour le fonctionnement et l’entretien (service) dans le livret
d’instruction accompagnant l’appareil.
Copies of the UL and CE Certication Test Reports are on le at Martinsound, Inc.
Please contact Martinsound if you have any questions regarding these issues.
Safety Warnings
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ÉLECTRIQUE
NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
ATTENTION: POUR EVITER LES RISQUES DE CHOC ÉLECTRIQUE,
NE PAS ENLEVER LE COUVERCLE.
AUCUN ENTRETIEN DE PIÈCES INTÉRIEURES PAR L'USAGER.
CONFIER L'ENTRETIEN AU PERSONNEL QUALIFIE.
AVIS: POUR EVITER LES RISQUES D'INCENDIE OU D'ELECTROCUTION,
N'EXPOSEZ PAS CET ARTICLE A LA PLUIE OU A L'HUMIDITÉ.
CAUTION AVIS
2
3
Congratulations on the purchase of your MSS-10 Microphone Preamplier, one of the
nest sounding pieces of recording equipment ever developed. This remarkable tool will
enable you to make exceptional, natural sounding recordings like never before. Unlike
other units, the “watermark” left by your MSS-10 is pure sonic excellence. Its unique
lack of coloration or hype will reveal a naturalness that is startling, yet immediately
endearing. Your MSS-10 will quickly become one of the hardest working tools in your
audio toolkit. We’re sure that you will enjoy its use for many years to come.
At the heart of the MSS-10 are proprietary, high resolution, all discrete ampliers,
coupled with a custom, high-level, input transformer. These give the MSS-10 its unique
sonic neutrality and resolution, hence the natural sound and musicality. Every com-
ponent of the MSS-10 was evaluated and listened to, individually and collectively, to
assure the nest possible signal path. Coin silver with a stabilizing agent was chosen
for switch contacts because of its superior audio quality over gold. Different grounding
techniques were tried on the PC board layouts to nd the best sounding design. And
capacitors… we could write a book on them, which is why we eliminated them from
the audio path and use our own private label capacitors in other key areas. From all
this research and technology came the desire to build the world’s nest solid state
microphone preamplier. Our desire was not to pick the best shade of rose for a new pair
of tinted glasses, but to truly unveil the audio as never before.
The MSS-10 is comprised of dual signal paths in a single unit, allowing the user complete
exibility in getting audio from the microphone to the console or recorder input.
The primary signal path is a microphone preamplier using two stages of non-inverting
amplication from Mic Preamp In to Mic Preamp Out, providing wide bandwidth and
stability, while avoiding the sonic degradation of inverting ampliers. The microphone
preamplier features 20-65dB of gain switched in precise 5dB steps, and selection of a
20dB pad, polarity reversal, and 48V phantom power. The Mic Preamp Out provides the
user with the highest denition audio signal possible from the source microphone to the
outside world.
The secondary signal path is a line driver that can derive its source from either the
microphone preamplier or from the separate balanced Line In. The line driver features
a high quality level control with adjustment from ∞ to +10dB of gain for smooth level
riding, a Cal switch that shunts the level control for unity gain, a Mute switch, and a
buffered professional VU meter that follows the Line Out. Again no inverting ampliers
are used.
Let’s take a closer look at the layout of the MSS-10…
Introduction
4
Mic Gain
Switches the microphone preamplier
gain from 20dB to 65dB in precise 5dB
steps using excellent sounding, chemi-
cally stabilized, redundant silver switch
contacts of the highest quality.
This setting determines the output level
from the Mic Preamp Out XLR and the
level sent to the line driver when Line
is not selected.
48V
Applies 48 VDC of regulated power to
pin 2 and 3 of the Mic Preamp In XLR for
phantom powered microphones.
Ø
Reverses the connection between the
Mic Preamp In XLR and the input trans-
former. Polarity reversal is done at
this point because inverting ampliers
cannot begin to compare to excellent
sounding, chemically stabilized, redun-
dant silver switch contacts.
-20dB
Reduces the level to the rst amplier
using a voltage divider that terminates
the secondary of the input transformer.
There is no loss of audio quality when
using the pad, unlike a standard U pad
placed in front of an input transformer.
The custom MSS-10 input transformer
is designed to handle high signal levels.
Tip:
When setting the gain of the microphone preamplier, deselect the Line switch and
select the Cal switch. The VU meter will then read the actual level of the microphone
preamplier allowing optimization of the gain. Be sure to reset the Line and Cal switches
to their preferred setting afterwards.
Microphone Preamplier
Ce manuel convient aux modèles suivants
1
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