DS-15A - AVC Group

DS-15A - AVC Group
The DS-15A is a versatile biamplified two-way
vented loudspeaker system.
The DS-15A is an ideal system for solo
musicians and keyboard based groups
providing a complete sound reinforcement
solution in a single package. PA applications
such as recitals, conferences, receptions, or
any event that requires a system that is easy
to use and transport, will benefit from the DS15A.
The DS-15A incorporates a 150 W amplifier for
the low frequency transducer and a 50 W
amplifier for the high frequency driver. Both
are protected against overvoltage,
undervoltage, overloads, including shorts to
the supplies, thermal runaway, and
instantaneous temperature peaks.
The DS-15A has a built-in two channel mixer
with a microphone input and a line input with
independent level controls. A master volume
control is also provided.
» Biamplified 2-way system
» 150 W low frequency power amplifier
» 50 W high frequency power amplifier
» 15" cone speaker
» 1" compression driver
Low Frequency Power AmplifierR:
High Frequency Power AmplifierR:
Input Type:
Input Impedance:
On-axis Acoustical Frequency RangeF:
Rated Maximum Peak SPL at 1 meter:
Nominal -6 dB BeamwidthsB:
(average, 500 Hz to 8 kHz)
Speech Coverage AnglesC:
Enclosure Material:
Transducers/Replacement Parts:
AC Power Requirements:
Dimensions (H x W x D):
Shipping Weight:
Accessories (optional):
150 WRMS
Balanced Differential for Line and Mic
Line: 20 kΩ; Mic: 2 kΩ
Line: 0.75 V (-0.28 dBu)
Mic: [3 mV, 150 mV] (-48 dBu, -14 dBu)
60 Hz - 15 kHz
127 dB
90° Horizontal
70° Vertical
95° Horizontal x 75° Vertical
Mineral loaded polypropylene
Black or white
LF: P-15/GM P-15; HF: M-3/GM M-5
Female XLR for MIC IN. 1/4" phone jack for
115 V, 50 Hz/60 Hz
230 V, 50 Hz/60 Hz
70 x 45 x 36 cm (28 x 18 x 15 in)
23.4 kg (51.5 lbs)
26 kg (57 lbs)
TRD-2 adjustable tripod
ANL-1 4-piece hanging eyebolt/carabiner set
FUN-15A padded transport cover
R 8 ohm load @ 1% THD.
F As per IEC 268-5 (1989), re. a two octave band centred at 500 Hz. Half space anechoic.
B Average of one-third octave band measures.
C There is currently no standard method of averaging the beamwidth with frequency characteristics
into a single meaningful figure, which
impedes comparisons across manufacturers and very often even product lines. This, our own, criterion weighs the -6 dB coverage angles
from one-octave bands according to their contribution to speech intelligibility.
One and one-third octave bands comply to ANSI S1.11-1986.
The low frequency section utilizes a high
efficiency 15" low frequency speaker with 3"
voice coil. The high frequency section makes
use of a 1" exit compression driver with 2"
titanium diaphragm, coupled to a constant
directivity horn.
Full use of high pressure injection moulding
techniques has achieved a mineral loaded
polypropylene cabinet of a very high density
with minimum vibration. An integral handle
facilitates carrying. A rugged steel grill
protects the cone speaker.
Two M8 flying points on the top and bottom of
the enclosure allow flying. An integral 35 mm
socket can be used for tripod mounting.
Frequency Response
Figure 1 shows the frequency response at 1 m
of a unit radiating to a half space anechoic environment and driven by a swept sine wave signal (-18dBm input).
Figure 2 shows the Second Harmonic Distortion
(grey) and Third Harmonic Distortion (dotted)
curves for a unit driven at 10% of its nominal
power handling rating.
Figure 3 shows the -3, -6 and -10 dB horizontal
(solid) and vertical (dashed) beamwidth with
frequency curves. -6 dB ones are shown with
thicker traces for clarity.
Axial Directivity Q(R θ) and D i
Figure 4 shows the above characteristics with
frequency. Thin continuous and dashed lines
show partial horizontal and vertical,
respectively, characteristics.
Polar Response
Figure 5 shows the one octave band horizontal
(solid) and vertical (dashed) polars for the
indicated frequencies. Full scale is 50 dB, 5 dB
per division.
NOTES. 1.Frequency response: referred to 1 m; low end
obtained through the use of near field techniques; one-third
octave smoothed for correlation with human hearing.
2.Harmonic distortion components are not plotted beyond 20
kHz; near-field techniques used. 3.Directivity characteristics
plotted with respect to frequency are the average within the
one-third octave bands of center frequencies noted by the
marks at the bottom of the graphs, but are joined up for
display purposes. All other characteristics plotted vs.
frequency use 1/24th octave resolution. Regions of less than
1 dB below goal level and sharp notches may be ignored
when calculating beamwidths. 4.Directivity factor and index
were computed from two degree resolution vertical and
horizontal polars using sinusoidal weighting. 5.Polars were
acquired by placing the unit on a computer controlled
turntable inside our anechoic chamber. Measurement
distance was 4 m.
D.A.S. Audio, S.A.
C/. Islas Baleares, 24 - 46988 Fuente del Jarro - Valencia, SPAIN
Tel. 96 134 0525 - Tel. Intl. +34 96 134 0860 - Fax. 96 134 0607 - Fax. Intl. +34 96 134 06 07
D.A.S. Audio of
6970 N.W. 50th St. Miami, FL 33166, U.S.A.
America, Inc.
Tel. +1 305 436 0521 - Fax. +1 305 436 0528
Product improvement through research and development is
a continuous process at D.A.S. Audio. All specifications
subject to change without notice.
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