TA-500H datasheet.qxd (Page 1)
datasheet
ASPECT® SERIES ENGINEERING INFORMATION
The Aspect® series is a range of high performance
at the horn mouth. The Polyhorn™ design
modular loudspeaker enclosures designed for use
effectively locates the acoustic centre well
across a wide spectrum of sound reinforcement
behind the motor system, forming a virtual
activities, easily scalable to specific acoustical and
point source whose radius coincides with the
venue requirements ranging from large scale indoor or
array curvature without requiring an excessively
outdoor concerts to corporate events, theatre shows
deep enclosure.
and nightclub applications.
The TA-500H is a horizontal format three-way
The aim of any sound reinforcement system is
enclosure designed for fixed installation
to distribute sound evenly, with consistent
applications. It houses high frequency, mid
frequency response and in a predictable way,
frequency and low frequency elements,
across all seats of an auditorium or listening
covering the frequency range from 60Hz to
area. An optimum method of attaining this goal
20kHz.
is through the correct application of point
source arrays to create a segment of a spherical
wavefront. Not only does this approach provide
an exceptionally well defined and coherent
acoustic source, but it also allows for
considerable flexibility when assembling arrays
in both horizontal and vertical dimensions.
The HF section of the enclosure is dedicated to
handling the high frequency band above 5kHz,
being reproduced by a custom designed HF
driver loaded by a high frequency Polyhorn™
device. The HF driver combines highly
innovative patented (and patent applied for)
design features to ensure exceptional high
In practice, the dispersion characteristics of a
frequency performance and long term reliability.
typical sound system are less than ideal because
High-mid frequencies from 250Hz to 5kHz are
of the tendency for conventional high frequency
handled by a custom designed 10” drive unit on
exponential horns to ‘beam’ with increasing
a further Polyhorn™ device optimised for mid
frequency. When arraying such horns,
frequencies. A single 15” low-mid frequency
interference between adjacent sources is inevitable
driver loaded with a TurboBass™ device covers
due to the variable curvature of the wavefront
the remaining frequency range below 250Hz.
caused by the horn's geometry, and this results
in undesirable comb filtering effects.
TA-500H
A key feature of the Polyhorn™ designs is the
very sharp cut-off at the edges of the coverage
Turbosound engineers, through intensive
pattern, which all but eliminates the comb
research and the subsequent implementation of
filtering effects commonly experienced between
innovative and patented Polyhorn™ designs,
adjacent sources when arraying conventional
have identified and overcome these deficiencies
horn designs. This makes it possible to achieve
FEATURES
and implemented solutions in the Turbosound
seamless arrayability in a very intuitive and
Ultra low distortion
Aspect® series. Fundamental to the Polyhorn™
predictable fashion.
Very high output
All drive units employ high stability,
Wide dispersion
designs—and applied in both mid and high
frequency bands—is the principle of dividing an
exponential horn flare into a multiplicity of
tapered waveguides. A further requirement is
that all path lengths from the diaphragm surface
to horn mouth are identical, and consequently
guarantees uniformity of phase of the wavefront
neodymium magnet structures in order to
provide very high motor strength—and hence
Rectangular enclosure
fast transient response—as well as exceptional
thermal performance. This also results in a
APPLICATIONS
useful reduction in weight which aids
Fixed installation
transportation and handling.
datasheet
TA-500H
ASPECT® SERIES ENGINEERING INFORMATION
The TA-500H includes a passive crossover network between
KEY FEATURES
the MF and HF drive units for bi-amped operation. It can be
bypassed for full tri-amped operation by moving an internal
jumper located inside the connector panel, the status of which
is visible externally.
The TA-500H cabinet is constructed from 15mm (5/8”) birch
plywood. M10 rigging point are provided on the top, bottom
and sides of the cabinet as well as two further points on the
• Controlled dispersion pattern of 50° x 25° generates highly
focused coverage pattern in both horizontal and vertical planes
with exceptional projection capabilities
• HF transducer employs a high stability, high temperature
neodymium magnet structure which offers higher efficiency, as
well as reduced weight
rear, situated near the top and bottom of the cabinet for
• Patented HF and MF Polyhorn™ designs generate equal level
adjusting the vertical angle.
across a uniformly curved wavefront identical to the array
A recessed panel at the rear carries two parallel-linked Speakon
profile
NL8MP’s for tri-amped connections, with a Speakon NL4MP
• Directivity over 1kHz exhibits very sharp cut-off at the edges
which provides the sub link out connection..
of the pattern, dramatically reducing out-of-band signal
The TA-500H is highly recommended for installing in theatres,
• Unique 10" high-mid frequency driver is fabricated from a
concert halls and entertainment venues.
single-piece aluminium bowl, serving as a high strength frame,
heatsink, rear compression chamber and high pass filter.
KEY SYSTEM BENEFITS
• Minimal destructive interference between adjacent
enclosures, effectively giving seamless arrayability in both
horizontal and vertical planes. All audience seats get essentially
the same frequency response
• Wide horizontal dispersion pattern suits many one-box-a-side
touring applications
• Intuitive 'point and shoot' characteristics make it very easy to
adapt flown or ground stacked clusters to widely variable
venue and audience requirements
• Very high power capability combined with high efficiency
means that peak sound pressure levels of up to 141dB are
easily achievable from one cabinet
• Greatly improved thermal performance from neodymium
magnet structures reduces power compression to negligible
levels and delivers more amplifier power into acoustic watts
• Ability to tailor the PA coverage according to extremely varied
venue requirements; can achieve optimum coverage even in
irregularly shaped rooms.
page 2
datasheet
ASPECT® SERIES ENGINEERING INFORMATION
TA-500H
page 3
datasheet
TA-500H
DIMENSIONS (HXWXD)
NET WEIGHT
COMPONENTS
ASPECT SERIES ENGINEERING INFORMATION
551mm x 983mm x 498mm (21.7” x 38.7" x 19.6")
52kg (114.4 lbs)
1 x custom 15” (381mm) LF driver, 1 x custom 10” (254mm) MF driver on a midrange
Polyhorn™, 1 x custom HF driver on a high frequency Polyhorn™
FREQUENCY RESPONSE1
DISPERSION2
POWER HANDLING
60Hz - 20kHz ±4dB (with DSP)
50°H x 25°V; horizontal array angle: 45°
LF: 400 watts r.m.s., 800 watts program
MF: 200 watts r.m.s., 400 watts program
HF: 50 watts r.m.s., 100 watts program
SENSITIVITY3 (1W@1M)
MAXIMUM SPL
LF: 106dB; MF: 105dB; HF: 112dB
135dB continuous4, 141dB peak5
CROSSOVER POINTS
Passive: 250Hz, Active: 250Hz, 4k/5k99Hz
NOMINAL IMPEDANCE
LF: 8 ohms; MF: 16 ohms; HF: 16 ohms
CONSTRUCTION
15mm (5/8”) birch plywood throughout; rebated, screwed and glued. Finished in black semimatt textured paint (optional TurboBlue™)
GRILLE
CONNECTORS
Powder coated perforated steel with reticulated foam backing
(2) Neutrik Speakon NL8 wired: pin1+ and 1- link to NL4; pin 2+: LF positive; pin2-: LF
negative; pin 3+: MF positive, pin 3-: MF negative, pin 4+: HF positive, pin 4- HF negative
(1) Neutrik Speakon NL4 wired: pin1+: sub positive, pin1-: sub negative
SPARES AND
ACCESSORIES
MG-500H
Replacement cloth/expanded metal grille
LS-1527
15” (381mm) LF loudspeaker
RC-1527
Recone kit
LS-1021.2
10” (254mm) HMF loudspeaker
RC-1021.2
Recone kit
CD-113
HF driver
RD-113
Replacement HF diaphragm
Notes
1
Measured on axis
2
Average over stated bandwidth
3
Average over stated bandwidth
4
Unweighted diode-clipped pink noise. Measured in a half space environment.
5
Verified by subjective listening tests of familiar program material, before the onset of perceived signal degradation.
page 4
datasheet
TA-500H
ASPECT® SERIES ENGINEERING INFORMATION
130
130
Fundamental
10% Power
Fundamental
10% Power
120
110
Sensitivity
1W/1M
90
80
1.0%
2nd Harmonic
10% Power
3rd Harmonic
10% Power
70
Ref.
Sensitivity
1W/1M
110
100
2nd Harmonic
10% Power
3rd Harmonic
10% Power
90
80
1.0%
70
0.2%
0.2%
60
60
20 Hz
50
100
200
500
1 kHz 2
5
10
20 Hz
20
50
100
200
500
1 kHz 2
5
10
20
5
10
20
Frequency
Frequency
300
200
100
100
Ohms
300
200
Ohms
Distortion %
100
Sound Pressure Level in dB
Ref.
Distortion %
Sound Pressure Level in dB
120
16
10
8
16
10
8
4
4
2
2
1
1
20 Hz
50
100
200
500
1 kHz 2
Frequency
LOW FREQUENCY
5
10
20
20 Hz
50
100
200
500
1 kHz 2
Frequency
HIGH/MID FREQUENCY
Impedance A constant current circuit was used to measure the impedance. Frequency response The frequency response
shown was obtained by feeding a swept sine wave through the system in a half space environment. The position of the
microphone was vertically on-axis at a distance of 2 metres, then scaled to represent 1 metre. 2nd & 3rd Harmonic Distortion
Distortion measurements were obtained using an Audio Precision harmonic distortion analysis system and comply with
AES recommendations for enclosure measurement (AES paper ANSI S4-26-1984). Data Conversion All graphs were digitally
generated using the APEX custom software system, designed to translate data derived from Audio Precision ‘System
One’ test equipment into AutoCAD™. This program enables graphical information to be plotted to a high degree of
accuracy.
page 5
datasheet
TA-500H
ASPECT® SERIES ENGINEERING INFORMATION
BEAMWIDTH
360
300
Degrees between -6dB points
200
100
90
80
70
60
50
40
30
20
Horizontal
Vertical
10
20 Hz
50
100
200
500
Frequency
page 6
1 kHz
2
5
10
20
datasheet
TA-500H
ARCHITECTURAL
& ENGINEER’S
SPECIFICATIONS
ASPECT® SERIES ENGINEERING INFORMATION
The loudspeaker system shall be of the switchable bi-amped/tri-amped type comprising: one
high frequency driver loaded with a patented PolyHorn™, one 10” (254mm) high-mid
frequency driver loaded with a patented PolyHorn™, and one 15” (381mm) low frequency
driver loaded with a TurboBass™ device. Performance specifications of a typical production
unit shall meet or exceed the following:- Frequency response, measured with a swept sine
wave input shall be flat within ±4dB from 60Hz to 20kHz (with DSP). Dispersion shall average
50°H x 25°V. Nominal impedance shall be LF: 8 ohms, MF: 16 ohms, HF: 16 ohms. Power
handling shall be LF: 400 watts r.m.s., 800 watts program; MF: 200 watts r.m.s., 400 watts
program; HF: 50 watts r.m.s., 100 watts program. Sensitivity measured with 1 watt input at 1
metre distance on axis, mean averaged over stated bandwidth shall be LF: 106dB, MF: 105dB,
HF: 112dB. Maximum SPL (peak), measured with music program shall be 141dB. Dimensions:
551mm x 983mm x 498mm (21.7” x 38.7” x 19.6”). Weight: 52kg (114.4lbs). The loudspeaker
system shall be the Turbosound Aspect TA-500H. No other system shall be acceptable unless
the above combined performance specifications are equalled or exceeded. Flying and
installation hardware shall be available comprising a range of load-certified components.
DIMENSIONS
93mm
[3.7"]
498mm
[19.6"]
TOP
40mm
[1.6"]
983mm
[38.7"]
BOTTOM
93mm
[3.7"]
35.5mm 75.5mm
[1.4"]
[3.0"]
551mm
[21.7"]
FRONT
TA-500H Version 1.0 07/07
© Turbosound 2007
35.5mm
[1.4"]
SIDE
BACK
Turbosound Ltd Star Road Partridge Green West Sussex RH13 8RY UK
tel: +44 (0) 1403 711447 fax: +44 (0) 1403 710155 • www.turbosound.com
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