Meyer Sound Computer Monitor X 10 User Manual

X-10  
High Resolution Linear Control Room Monitor  
FEATURES  
Self-powered  
Linear response  
Extremely low distortion  
Uniform dispersion with  
no comb filtering effects  
Phase aligned for near-perfect  
impulse response  
Full range output of 136 dB  
SPL peak (@ 1 meter)  
PSAC™ (Pressure Sensing  
Active Control - patent pending)  
The Meyer Sound X-10  
X-10 provides an accurate, complexities of multiple  
represents a fundamental  
redefinition of large format linear representation of  
detailed and consistently  
crossover points.  
Patented HF driver and  
wave guide  
In order to achieve  
studio monitors for the  
emerging era of high  
resolution digital media.  
Powerful, yet relatively  
compact, the self-powered first confronted the  
X-10 exhibits extremely low tradeoffs inherent in  
distortion, near-perfect  
impulse response and  
uniform dispersion across  
a wide listening area.  
Also, by employing cutting- emphasized dual 15- or  
edge control technology  
adapted from avionics, the when operating above  
the input signal.  
an impulse response  
exceeding that of  
electrostatics and Meyer's  
own patented HD-1 near-  
field monitor, Meyer  
Sound engineers opted  
for a two-way design with  
a single LF driver crossing  
over at 500Hz. In order  
to produce low frequency  
output equivalent to dual  
Soffit mount or freestanding  
To achieve the design  
goals of the X-10 project,  
Meyer Sound engineers  
RMS™ (Remote Monitoring  
System) compatible  
high level reproduction of  
low frequencies. Recent  
trends in large room  
monitors have  
X-800 subwoofer option for  
extended headroom  
18-inch woofers. However, woofer designs, Meyer  
Superior  
first developed and  
engineering  
for the art  
and science  
of sound.  
X-10 demonstrates an  
extraordinarily linear  
response characteristic:  
the frequency response  
curve does not change  
with variations in  
250Hz, dual woofers  
produce destructive comb  
filtering effects. But  
placing the LF crossover  
below 250Hz normally  
requires a three- or four-  
manufactured a new, high  
output linear 15-inch  
driver. This robust woofer  
utilizes a long excursion,  
4-inch diameter voice coil  
suspended in a high  
monitoring levels. From  
the threshold of audibility  
up to full output, the  
way system, which in turn intensity (1.5 million  
1
introduces the inevitable  
phase distortion  
Maxwell ) field generated  
by dual concentric rings of  
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Amplitude  
0.6  
proximity of the dual drivers.  
Console Reflections  
The companion X-01 crossover  
module optimizes overall system  
phase response and offers facilities  
for connection of single or dual  
subs for either stereo or 5.1  
surround operation. Crossover points  
are selectable at 120, 100 and  
80Hz, and a single switch allows  
quick changeover from "pure" X-10  
monitoring to sub-woofer  
0.4  
0.2  
0.0  
-0.2  
-0.4  
-0.6  
-7  
-6  
-5  
-4  
-3  
-2  
-1  
0
+1  
+2  
+3  
+4  
+5  
+6  
+7  
Time Window (miliseconds)  
A typical dynamic loudspeaker’s impulse response  
augmentation. There is a separate  
.1 channel input so that the system  
may be switched between stereo and  
at the upper frequency limits.  
Neodymium magnets generate the  
intense field required for extended  
frequency response. The patented  
Constant Q waveguide maintains a  
uniform dispersion pattern at all  
frequencies, with no lobing apparent  
even when measured at 1/12 octave  
resolution. The result is stable  
imaging with a wide "sweet spot."  
Both transducers are driven by  
Class AB/H complementary power  
MOSFET amplifiers, with 620W  
available for the HF section and  
1200W for the LF section. Class  
AB/H topology strikes an ideal  
balance between ample power  
reserves and sonic purity, with all  
devices operating as Class A below  
40W nominal output. The control  
electronics package, refined from  
experience gained with the HD-1,  
includes an active crossover with  
pole-zero response correction filters  
and loudspeaker protection that  
remains completely out of circuit  
except when triggered by  
linearity of the overall system.  
(Unlike conventional monitors, the  
X-10 does not simply move into  
a more non-linear region when  
presented with peak levels beyond  
specified capabilities. It remains  
linear at all times, under all  
5.1 operation utilizing a front panel  
switch. This mode switch may be  
remoted to the console for easy  
access.  
inadvertent, potentially damaging  
overloads.  
For applications requiring very  
high monitoring levels coupled with  
extreme LF transients, the X-800  
self-powered subwoofer adds extra  
headroom to the X-10 system.  
Because the X-10 is a full-range  
system, the X-800 is not intended to  
extend frequency response; rather it  
extends headroom by at least 5dB  
while still maintaining the absolute  
conditions.) Also, because the  
X-800's dual 18-inch drivers are  
not tightly controlled by PSAC, they  
retain the subtle timbral cues of  
traditional subwoofers–a subjective  
characteristic that many listeners  
find familiar and pleasing. The  
X-800 output is contained well  
below 250Hz, so no adverse comb  
filtering effects are generated by the  
All components of the X-10  
monitor, including electronics and  
transducers, are manufactured by  
Meyer Sound in Berkeley, California.  
3
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X-10 / X-800 SPECIFICATIONS  
Meyer Sound Laboratories  
has devoted itself to  
X-10  
18 Hz - 20 kHz  
± 2 dB 23 Hz - 17 kHz  
± 43° from 100 Hz to 18 kHz (1/24 Oct)  
136 dB  
Operating Frequency Range  
Free Field  
Acoustic al1  
(each loudspeaker)  
Phase Response  
Maximum Peak SPL2  
Signal to Noise Ratio  
designing, manufacturing,  
and refining components  
that deliver superb sonic  
reproduction. Every part of  
every component is  
>110  
Crossover  
500 Hz- 1100 Hz, 950 Hz (equal acoustic pressure)  
Transducers  
15-inch LFHP 4-inch voice coil ultra high linear travel  
4-inch diaphragm compression driver  
Low Frequency  
High Frequency  
Audio Input  
Amplifiers  
10 k impedance, electronically balanced  
XLR (A-3) male and female  
+4 dBu  
Type  
Connector  
Nominal Input Level  
designed and built to  
exacting specifications and  
undergoes rigorous,  
Complementary power MOSFET output stages (audio class AB/H)  
1200 W rms burst low-channel, 620 W rms burst high-channel,  
Type  
Output Power  
1820 W rms Total  
< .02 %  
comprehensive testing  
in the laboratories.  
THD, IM, TIM  
AC Power  
250 V NEMA L6-20P (twistlock) inlet or IEC 309 male inlet  
95-125 V AC and 208-235 V AC; 50 Hz / 60 Hz  
Turn on: 85 V AC; Turn off 134 V AC; 50/60 Hz  
Turn on: 165 V AC; Turn off 264 V AC; 50/60 Hz  
Connector  
Automatic voltage selection  
Operational Voltage Range  
Research remains an  
integral, driving force  
behind all production.  
Meyer strives for sound  
quality that is predictable  
and neutral over an  
Max Continuous RMS Current (>10 sec) @115 V: 12 A  
Max Burst RMS Current (< 1 s) @115 V: 23 A  
Max Peak Current During Burst @115 V: 33 A  
Soft Start Turn-on <12 A @ 115 V  
@230 V: 6 A  
@230 V: 12 A  
@230 V: 17 A  
@100 V: 14 A  
@100 V: 28 A  
@100 V: 39 A  
Physic al  
Dimensions Height: 30” (762 mm); Width: 31” (787 mm);  
Depth: 21.50” (521 mm)  
Weight 187 lbs (84.82 kg), 205 lb (93 kg) shipping weight  
Enclosure/Finish Smooth, medium gloss  
Protective Grill Removable wood frame with cloth cover  
extended lifetime and  
across an extended range.  
X-800  
Acoustic al3  
Operating Frequency Range 16 Hz -200 Hz  
Frequency Response 1/3 Oct ± 3 dB 25 Hz -125 Hz  
Phase Response 1/3 Oct ± 50° 25 Hz -125 Hz  
Maximum Peak SPL2 135 dB  
Meyer Sound reserves the  
right to alter any specification  
without notice.  
Maximum Continuous SPL 125 dB  
Sensitivity 1 Vrms in = 135 dB SPL  
Notes  
Please visit our web site  
up-to-date information.  
1. Measured Free Space at 2 meters on horn axis.  
2. Measured at 1 meter from horn axis using pink noise with cabinet 1 meter  
above ground (Half Space)  
3. Measured Free Space at 2 meters on centerline axis, 1/3 Oct.  
X-10 – 04.081.016.01 x1  
PHYSICAL DIMENSIONS  
LISTED  
U
U
L
® L  
®
3K59  
COMMERCIAL  
AUDIO SYSTEM  
C
21.33  
[541 mm]  
20.50  
[521 mm]  
3.31  
[84 mm]  
18.17  
[461 mm]  
30.00  
[762 mm]  
23.94  
10.25  
[260 mm]  
22.38  
[568 mm]  
[608 mm]  
Meyer Sound Laboratories, Inc.  
2832 San Pablo Avenue  
Berkeley, CA 94702  
WARNINGS:  
THIS PRODUCT MUST BE GROUNDED  
This surface may reach high tempuratures white in use.  
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6
inches  
clearance from this surface and adequate ventilation.  
To reduce the risk of electric shock do not remove cover.  
No operator or serviceable parts inside.  
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ATENCI”N:  
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AUTHORIZADO  
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12.50  
[318 mm]  
ACHTUNG: GEH√USE NICHT OFFENE WARTUNG  
UND REPARATUR NUR DURCH ELEKTROF√CHKRAFTE  
ATTENTION: ENTRETIENET REPARATIONS  
INTERNES NE SONT AUTORISEES QU'AU  
PERSONNEL TECHNIQUE QUALIFI…  
U.K. WARNING:  
NO OPERATOR SERVICEABLE PARTS INSIDE.  
REFER SERVICING TO QUALIFIED PERSONNEL.  
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208-235V~  
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MAX  
1
400W  
R
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tag  
urn on 85V~ Turn off 134V~  
Turn on 165V~ Turn off 264V~  
e
Range:  
T
15.50  
[394 mm]  
0.62  
[16 mm]  
tel: 510.486.1166  
31.00  
10.25  
[260 mm]  
[787 mm]  
fax: 510.486.8356  
Front  
Side  
(Without Grille Frame)  
Top  
Back  
(Without Grille Frame)  
Copyright © 2000 Meyer Sound Laboratories, Inc.  
All Rights Reserved  
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