Brochure
A systems approach
CMS 3.0 - A measurable difference
Off Axis Performance – Enhanced Constant Directivity (8” example)
CMS 801 DC - On axis and 45 degrees off axis response.
CMS exhibits excellent constant directivity response –
response remains constant off axis. 90 degree pattern
holds to 5 kHz.
CMS 803 DC - On axis and 45 degrees off axis response.
Wider and better controlled dispersion of CMS 803DC;
the 90 degree pattern is held constant to beyond 17 kHz.
Improved Driver Integration – Enhanced Constant Directivity (8” example)
CMS 801DC - (magnied) individual LF and HF
impulse responses.
The graph shows that the time origin of the LF and HF
waves are separated by approximately 170 µS on the
CMS 801 driver.
CMS 803DC - (magnied) individual LF and HF
impulse responses.
The time origin of the LF and HF waves are separated by
approximately 60 µS on the CMS 803DC driver. The
improvement moves us closer to a perfect acoustic-center
alignment; subjectively producing a more neutral sound,
and less “forward midrange“.
110.0
98.0
86.0
74.0
62.0
50.0
20 50 100 200 500 1k 2k 5k 10k 40k
CMS 801DC in IEC BAFFLE
dB SPL
Frequency (Hz)
10 dB @
10 kHz
CMS 801DC BM in IEC BAFFLE
0.10
0.060
0.020
-0.020
-0.060
-0.100
Pa
2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8
Time (ms)
LF HF
170us
CMS 803DC BM in IEC BAFFLE
110.0
98.0
86.0
74.0
62.0
50.0
dB SPL
40 100 200 500 1k 2k 5k 10k 40k
Frequency (Hz)
4 dB @
10 kHz
CMS 803DC BM in IEC BAFFLE
0.10
0.060
0.020
-0.020
-0.060
-0.100
Pa
2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8
Time (ms)
LF HF
60us
No alignment
No alignment
No alignment
High Frequency Mid Frequency Low Frequency
Signals aligned
only in a narrow
band on one axis
WEIV D3WEIV EDISWEIV POTWEIV EDISWEIV TNORFWEIV POT
High Frequency
No alignment
No alignment
No alignment
High Frequency Mid Frequency Low Frequency
Signals aligned
only in a narrow
band on one axis
WEIV D3WEIV EDISWEIV POTWEIV EDISWEIV TNORFWEIV POT
Low Frequency
No alignment
No alignment
No alignment
High Frequency Mid Frequency Low Frequency
Signals aligned
only in a narrow
band on one axis
WEIV D3WEIV EDISWEIV POTWEIV EDISWEIV TNORFWEIV POT
High Frequency
No alignment
No alignment
No alignment
High Frequency Mid Frequency Low Frequency
Signals aligned
only in a narrow
band on one axis
WEIV D3WEIV EDISWEIV POTWEIV EDISWEIV TNORFWEIV POT
Low Frequency










