
Features:
• Multi-Functional 2-Way Cabinet
• 1000 W, 4 Ohms
• 60° x 40° Rotatable Coverage Pattern
• 103 dB Sensitivity, 139 dB Maximum SPL
• Crossover with HF Protection
• 2x SMX2151 LF Transducer
• ND2-8 Compression Driver
• M8 Threaded Points
Wir weisen ausdrücklich darauf hin, dass bei
gehängten Lautsprecherboxen die einschlägigen
Sicherheitsbestimmungen zu beachten sind. Es
muss unbedingt qualifizierte Fachberatung in
Anspruch genommen werden!
We expressly point out that the relevant safety
regulations must be observed for “flying”
loudspeaker systems. It is imperative that qualified expert advice is sought.
Technische Informationen
Engineering Data Sheet
C25.2
2x 15“ / 2“
2-Way Fullrange Cabinet
C 25.2
Order No. F01U165093
Cabinet Fullrange
Configuration Passive 2-Way
Nominal impedance 4 Ohms
Minimum Impedance 3.1 Ohms
Rated Power RMS 1000 W
Peak Power 4000 W
Sound pressure level
SPL 1 W / 1 m 103 dB
Max. SPL 1 m (calculated
with peak power)
Frequency Range (-10 dB) 55 Hz to 15 kHz
Nominal Coverage Angle
(Horizontal x Vertical)
X-Over Frequency 1750 Hz
LF Transducer 2x SMX2151, 15 ‘‘ (381 mm) Driver
HF Transducer ND2-8, 2 ‘‘ (51 mm) Diaphragm Compres-
Connectors 2x Neutrik Speakon NL4
Dimensions (W x H x D) 445 mm x 1130 mm x 445 mm
Net Weight 44.9 kg (99.0 lbs)
Shipping Weight 50.5 kg (111.3 lbs)
Enclosure material MDF with D-PUR PLUS
Grille Steel, Black Finish with Acoustic Gauze
Suspension 6x M8 threaded Points - 2x on Each Side
and 2x on the Rear of Enclosure
Warranty 5 years
Optional Accessories
EBK-M8 Eye Bolt Kit F01U166797
Spare Parts
LF Transducer F01U134309
HF Transducer F01U106894
139 dB
60° x 40° (or 40° x 60°)
sion Driver
Full-Range 1+ / 1-
Wired through 2+ / 2-
(17.5“ x 44.5“ x 17.5“)

Beschreibung Description
Werden sehr hohe Schalldrücke aus kompaktem Format gebraucht ist die trapezförmige
C 25.2 als Doppel - 15" / 2-Weg Fullrange Box mit einer sehr hohen Belastbarkeit von
1000W Continuous / 4000W Peak und einem Wirkungsgrad von 103 dB 1W / 1m die
richtige Wahl. Der Maximal-Schalldruck beträgt 139 dB und erlaubt auch im FullrangeBetrieb die Beschallung größerer Räume und Events. Im Tieftonbereich kommen zwei
SMX 2151 Woofer zum Einsatz, im Hochtonbereich arbeitet ein ND2-8 Neodymium Compression-Treiber in ein rotierbares 60° x 40° Constant Directivity Horn für den Frequenzbereich oberhalb 1750 Hz. Für das Crossover wurden für eine sehr steilflankige Trennung
Filter sechster Ordnung gewählt. Flugpunkte für Eyebolts erlauben vertikale oder horizontale Aufhängung. Als ideale Ergänzung für sehr druckvolle Aktiv-2-Weg Systeme wird
der Doppel-18" Subwoofer Sub 2.18 zusammen mit den Controllern DSP 260 oder DSP
600 und Endstufen der Serien SL oder LX empfohlen. Geeignete Presets stehen für beide
Controller zur Verfügung, bei Verwendung des DSP 600 auch ein FIR-TUNE Preset.
Illustration 1: Dimensions
If very high sound pressure levels are required from a compact format, the trapezoidal C
25.2 double 15" / two-way full-range cabinet is the ideal choice, with its very high power
handling (1000W continuous / 4000W peak) and sensitivity of 103 dB 1W / 1m. Boasting a maximum SPL of 139 dB, it is capable-even in full-range operation-of providing
coverage for larger rooms and events. In the l ow frequency range, two SMX 2151 woofers
are used, whilst in the high frequency range, an ND2-8 neodymium compression driver in
a rotatable 60° x 40° constant directivity horn covers the frequencies above 1750 Hz.
The crossover is implemented using a sixth order filter with a very steep roll-off. Flying
points for eybolts allow the cabinet to be suspended either vertically or horizontally. As
the ideal companion for a very powerful active two-way system, the double 18" subwoofer Sub 2.18 is recommended together with the DSP 260 or DSP 600 controllers and
power amplifers from the SL or LX series. Suitable presets for both controllers are
available, as well as a FIR-TUNE preset for the DSP 600.

Illustration 2: Frequency Response
Frequency Response, 1/6 Oct.
110
105
100
95
90
85
80
SPL / dB
75
70
65
60
20 100 1k 10k 20k
200
100
50
20
10
|Z| / Ω
5
2
1
20 100 1k 10k 20k
360
200
100
80
60
φ / deg
40
30
20
horizontal
vertical
10
20 100 1k 10k 20k
25
Directivity Index DI, Directivity Factor Q, 1/1 Oct.
20
15
DI / dB
10
5
0
20 100 1k 10k 20k
f / Hz
200
100
50
20
10
5
2
1
Q

Illustration 3: Block diagram
Illustration 4: Horizontal Directivity
Horizontal Directivity, 3dB/Div, 30dB Radius, 1/1 Oct.
0°
30°
60°
90°
120°
150°
30°
60°
90°
120°
150°
30°
60°
90°
±180°
0°
±180°
0°
−30°
−150°
−30°
−150°
−30°
−60°
−90°
−120°
63 Hz
−60°
−90°
−120°
500 Hz
−60°
−90°
90°
120°
90°
120°
90°
60°
60°
60°
30°
150°
30°
150°
30°
0°
±180°
0°
±180°
0°
−30°
−150°
−30°
−150°
−30°
−60°
−90°
−120°
125 Hz
−60°
−90°
−120°
1 kHz
−60°
−90°
90°
120°
90°
120°
90°
60°
60°
60°
30°
150°
30°
150°
30°
0°
±180°
0°
±180°
0°
−30°
−150°
−30°
−150°
−30°
−60°
−90°
−120°
250 Hz
−60°
−90°
−120°
2 kHz
−60°
−90°
120°
150°
±180°
−150°
−120°
4 kHz
120°
150°
±180°
−150°
−120°
8 kHz
120°
150°
±180°
−150°
−120°
16 kHz

Illustration 5: Vertical Directivity
Vertical Directivity, 3dB/Div, 30dB Radius, 1/1 Oct.
90°
−90°
90°
−90°
90°
60°
−60°
60°
−60°
60°
30°
0°
−30°
63 Hz
30°
0°
−30°
500 Hz
30°
0°
−30°
150°
±180°
−150°
150°
±180°
−150°
150°
±180°
−150°
120°
150°
±180°
−150°
−120°
120°
150°
±180°
−150°
−120°
120°
150°
±180°
−150°
120°
−120°
120°
−120°
120°
90°
−90°
90°
−90°
90°
60°
−60°
60°
−60°
60°
30°
0°
−30°
125 Hz
30°
0°
−30°
1 kHz
30°
0°
−30°
150°
±180°
−150°
150°
±180°
−150°
150°
±180°
−150°
120°
−120°
120°
−120°
120°
90°
−90°
90°
−90°
90°
60°
−60°
60°
−60°
60°
30°
0°
−30°
250 Hz
30°
0°
−30°
2 kHz
30°
0°
−30°
Rigging
Illustration 6: Remove the M8 Screws from
the Loudspeaker, then install the Washers
and Eyebolts(EBK-M8 Eye Bolt Kit) to the
Loudspeaker
−120°
−90°
−60°
4 kHz
Washer has
to be used
−120°
Illustration 7: Eyebolts shown
oriented in the plane of pull
(CORRECT)
−90°
−60°
8 kHz
−120°
Illustration 8: Eyebolts not
oriented in the plane of pull
(INCORRECT)
−90°
−60°
16 kHz

Illustration 9: C 25.2 vertically
suspended (CORRECT)
WARNING:
Suspension
points are to
be used for a
single enclosure only, never arrays.
Never exceed the limitations or maximum recommended working load for
the C 25.2 systems.
Illustration 10: C 25.2 vertically
suspended (INCORRECT)
Illustration 11: Vertical orientation Illustration 12: Horizontal orientation
CAUTION: Eyebolts must be fully seated and orient in the plane of pull as shown. Always use washers
under the eyebolt to distribute the load on the enclosure.
12000 Portland Avenue South, Burnsville, MN 55337, USA Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:
Phone: +1 952/844-4051, Fax: +1 952/884-0043 +49 9421-706 0 Fax: +49 9421-706 265
Asia & Pacific only. For customer orders, contact Customer Service at:
www.dynacord.com +65 6571 2534 Fax: +65 6571 2699
For technical assistance, contact Technical Support at: +49 9421-706 0
© Bosch Communications Systems 09/2010
Part Number F01U164570 Vs 01 Specifications subject to change without notice.