Turbosound Speaker TCS C50T User Manual

TCS SERIES  
TCS-C50T  
Ceiling Speaker  
USER MANUAL  
Turbosound Ltd.  
Star Road, Partridge Green  
West Sussex RH13 8RY England  
Tel: +44 (0)1403 711447  
Fax: +44 (0)1403 710155  
Issue 1.1 August 2006  
Copyright © 2006 Turbosound Ltd.  
 
user manual  
TCS Compact series  
Introduction  
Congratulations, you have just purchased a professional loudspeaker product from the  
TCS Series sound contracting loudspeaker range, designed to give you the best in audio  
quality and many years of reliable, trouble free operation. It offers excellent pattern  
control, superior audio quality, full technical documentation including EASE data, and a  
comprehensive warranty against manufacturing defects. Please read through this manual  
carefully before you attempt to operate the loudspeaker system. It contains valuable  
information enabling you to quickly and easily connect the loudspeakers to your  
amplifiers, important system and set-up checks.  
Thanks  
Thank you for choosing a TURBOSOUND TCS Series loudspeaker product for your  
application. Please spare a little time to read the contents of this manual, so that you  
obtain the best possible performance from this unit.  
All TURBOSOUND products are carefully engineered for world class performance and  
reliability.  
If you would like further information about this or any other TURBOSOUND product,  
please contact us. Detailed product information is available on our web site at  
We look forward to helping you in the near future.  
Unpacking  
After unpacking the unit please check carefully for damage. If damage is found, please  
notify the carrier concerned at once. You, the consignee, must instigate any claim. Please  
retain all packaging in case of future re-shipment.  
Package Contents  
TCS-C50T manual  
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TCS Compact series  
Product Summary  
General Features  
TCS series ceiling loudspeakers are designed for use in a wide variety of fixed installation  
applications that require professional sound quality, ranging from cafés, pubs, bars and  
restaurants to retail stores, nightclubs, live music venues and houses of worship.  
High-grade speaker components are matched with an internal passive crossover  
to ensure a seamless transition between the HF and LF drivers.  
Products conform to BS5839 and IEC/EN 60849 fire prevention standards  
Architecturally friendly design ensure that the loudspeakers can be effectively  
and easily blended into any environment  
High quality line transformer supplied as standard, enabling connection to all  
70volt and 100volt line distributed systems, as well as providing a low  
impedance option.  
Steel back can for optimum acoustic performance, optionally supplied without  
back can where space above ceilings is limited.  
Paintable ABS speaker can be matched to a specific decor  
TCS Series ceiling loudspeakers are fully supported with EASE polar data  
(available to download from the Turbosound web site at www.turbosound.com).  
This enables accurate and predictable results when specifying sound systems in  
a given venue.  
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TCS Compact series  
Model Information  
Steel Fire can  
Loudspeaker  
Tap Selector  
Tweeter  
Attachment Screws  
Input Connector  
Strain Relief Fitting  
Terminal Cover Plate  
Rotating Mounting Tabs  
Perforated Grille  
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TCS Compact series  
TCS-C50T  
The TCS-C50T is a high quality full range two-way passive ceiling loudspeaker designed  
for use in background sound reinforcement applications in a wide range of fixed  
installations such as restaurants, retail shops, hotels, cafes, airports, boardrooms,  
conference centres, nightclubs, pubs and bars.  
It consists of a front loaded 5” bass/mid frequency driver and a 1” ferrofluid-cooled  
neodymium soft dome tweeter, matched with an internal passive crossover network, in  
an easy-mount fire-retardant paintable ABS ceiling frame with a perforated mesh grille.  
The TCS-C50T is rated at 75 watts r.m.s., and has a usable frequency range of 75Hz to  
22kHz. It features a wide, conical dispersion pattern suitable for all high quality  
background music and speech applications.  
An optional universal tile grid is designed to fit into any ceiling grid, allowing the cabling  
to be pre-terminated before the speaker is located, and secured using the four quarter-  
turn fixing tabs.  
The TCS-C50T is supplied as standard with a constant voltage transformer for use on all  
70 volt and 100 volt line distributed systems. Four power taps plus the low impedance  
setting can be selected via an easily accessible switch located behind the removable  
speaker grille. The TCS-C50T conforms to BS5839 fire prevention standards, as well as  
IEC/EN 60849.  
184.4mm  
[7.3"]  
186.9mm  
[7.4"]  
D268mm  
[10.6"]  
211mm  
[8.3"]  
240mm  
[9.5"]  
165mm  
[6.5"]  
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TCS Compact series  
System Considerations  
Amplifier Requirements  
Turbosound loudspeaker enclosures should be driven by high quality power amplifiers  
designed for true professional use. Such amplifiers will have balanced inputs, DC and RF  
fault protection, and well designed cooling systems for reliability.  
For low impedance systems the ‘program’ power, listed in the loudspeaker’s technical  
specification, is the best guide to the size of amplifier required for general purpose  
applications. The amplifier should be capable of delivering long term broadband power  
equal to the loudspeaker’s program power rating at the loudspeaker’s stated nominal  
impedance. This approach allows sufficient headroom to generate good dynamic range.  
RECOMMENDED AMPLIFIER POWER RATINGS:  
The amplifier's rated r.m.s. continuous power output (20Hz – 20kHz, per  
channel) should be equal to the program power handling of the  
loudspeaker at its nominal impedance.  
It should be understood that overdriving an insufficiently powered amplifier is more likely  
to cause loudspeaker damage – the total energy in a heavily clipped signal is far higher  
than in an unclipped signal – than operating a more powerful amplifier within its ratings.  
In general, the more powerful the amplifier the better it will sound, provided that it is not  
also driven into sustained clipping.  
All the equipment in the system before the system controller should be set up for 0dBV  
(775mV) maximum output. One controller can be used to feed several amplifiers as long  
as all the amplifiers are the same (or have the same gain ratings). More than one  
controller may be required if the amplifiers are of different gain or type. Please contact  
your dealer if you require help in this area.  
In a distributed system the amplifiers must be capable of supplying broadband power  
equivalent to the sum of the power rating of the loudspeakers (taking into account the  
individual power taps selected) connected to that particular amplifier channel.  
Turbosound recommends the T-series amplifiers for use with the TCS Compact series  
system.  
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TCS Compact series  
Crossovers and Processors  
The TCS-C50T is a passive loudspeaker system. This means that it requires only one  
amplifier channel for correct operation, the frequency splitting between the low  
frequency driver and the high frequency driver being accomplished by the internal  
passive crossover network.  
If subwoofers are used, additional amplifier channels and external electronic crossovers  
may be required. The Turbosound LMS-D24/26 digital management systems are  
recommended for this purpose.  
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TCS Compact series  
Installation Procedure  
1.  
Select the ceiling tile(s) to be used for mounting the loudspeaker(s) and remove it  
from the ceiling. Mark the cutout either by tracing from the cardboard template  
supplied with the loudspeaker, or by placing the tile bridge on the rear side of the  
tile, making sure that it is centred in both directions. Cut the hole with a knife or with  
a circular cutter set to 240mm (9 7/16”).  
Ø240  
2. Remove the loudspeaker grille by pushing on the speaker attachment tabs.  
Loosen the four attachment screws and fold the tabs sideways until they touch the  
steel back can, allowing the speaker to pass freely through the cutout. Assemble the  
speaker, tile bridge and tile together and tighten the attachment screws to tighten  
the mounting tabs. Note that the first 1/4 turn rotates the tab outwards and away  
from the can, and subsequent turns tighten the tab down onto the ceiling tile. DO  
NOT OVERTIGHTEN.  
3. The tile grid is designed to fit either 24” or 600mm wide tiles. The tile grid does not  
physically attach to the T-grid struts; instead the inverted V-shapes at the ends sit  
over the top of the T-grid struts. During normal circumstances the speaker is  
supported by the edge of the tile. In the unlikely event that the tile should come out  
or fall apart, the ends of the tile grid are designed to catch onto the T-grid, thereby  
preventing the loudspeaker from falling.  
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TCS Compact series  
4.  
Connect the wiring to the removable connector. A 4-way connector is supplied with  
the loudspeaker. Strip the insulation back by 5mm (3/16”), insert the bare ends of  
the wire into the connector (do not tin the wire) and screw down the hold-down  
screw with a small flat blade screwdriver.  
There are two possible connection strategies, depending on the desired circuit result  
when a single unit is disconnected for trouble shooting or servicing:  
ƒ
Parallel Input Terminals. This allows the circuit to remain intact whenever a  
speaker is disconnected. Connect the outgoing pair of wires to the same  
terminals as the incoming pair of wires.  
+
-
Inp  
Link  
Input  
Link  
Input  
Link  
Input  
Link  
Power Amplifier  
- +  
+
-
- +  
+
-
- +  
+
-
- +  
+
-
Speaker 1  
Speaker 2  
Speaker 3  
ƒ
Loop-through Terminals. All loudspeakers after this unit will be disconnected,  
helping to isolate problems to a section of the distributed line while leaving the  
wires connected to the connector.  
+
-
Inp  
Link  
Input  
Link  
Input  
Link  
Input  
Link  
Power Amplifier  
-
+
+
-
- +  
+
-
- +  
+
-
-
+
+
-
Speaker 1  
Speaker 2  
Speaker 3  
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TCS Compact series  
5. Plug the connector into the socket in the loudspeaker’s terminal cup. The connector  
is polarised to avoid the possibility of mis-connection.  
6. The terminal cover also acts as the strain relief. Rotate the cover clockwise and  
tighten the retaining screw.  
7. Attach the safety lanyard to a separate support point. Consult construction codes in  
your region.  
8. Insert the speaker, together with the tile grid and tile, into the ceiling and allow its  
weight to settle down onto the grid.  
9. Adjust the voltage tap selector for desired level. The selector is located on the front  
baffle, and should be adjusted before fitting the grille. In some installations it may  
be preferable to leave grilles off until final adjustment of the tap selectors has been  
completed for all loudspeakers.  
10. Fit the loudspeaker grille. Orientate the grille such that the logo is facing in the  
desired direction, and press the grille firmly into place until it is flush with the rim.  
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TCS Compact series  
Painting the Loudspeaker  
Painting before Installation  
The speaker’s white finish matches most décor schemes and does not need further  
finishing. However where interior design requires an alternative colour this can be easily  
accomplished. The speaker can either be painted before installation, or where the rim  
needs to be finished at the same time as the ceiling, the rim can be painted after locating  
in the ceiling.  
The speaker will accept almost any type of emulsion or oil-based paint. Two coats are  
recommended.  
Clean the rim and grille with a light solvent such as white spirit. Do not use gasoline,  
kerosene, acetone, MEK, paint thinner, harsh detergents or other chemicals, all of which  
may damage the loudspeaker.  
After cleaning, apply two coats of paint, using a roller or brush, or by spraying.  
Painting the Speaker with the Ceiling  
Using the paint shield provided, paint the speaker and remove the shield. To paint the  
grille, first remove the logo and grille cloth backing. It is advisable to spray the grille to  
avoid the mesh becoming clogged with paint from a roller or brush, which may impair  
the sound quality. Replace the grille cloth.  
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TCS Compact series  
Cable Recommendations  
Heavy duty loudspeaker cable should always be used, with a minimum wire size of 12  
gauge (1.5mm²), and preferably 10 gauge (2.5mm²) for longer runs, keeping the run as  
short as possible. This helps to avoid wasting amplifier power in the resistance of the  
cable. High cable resistance also lowers the damping factor of the amplifier which affects  
its ability to control loudspeaker cone movement.  
Losses due to undersized cable and long runs are clearly illustrated in the table below.  
Please use this table to determine the most suitable cable size and maximum run for your  
particular application.  
Nominal  
Cable Area  
(mm2)  
Cable Length Cable Resistance Voltage Drop (%) 8 ohms  
Sensitivity Loss  
(dB)  
(m)  
(W)  
8W  
0.8  
1.6  
4.0  
7.7  
14.3  
0.5  
1.0  
2.4  
4.8  
9.1  
0.3  
0.6  
1.5  
3.0  
5.8  
4W  
1.6  
3.2  
8W  
-0.1  
-0.1  
-0.4  
-0.7  
-1.3  
0.0  
-0.1  
-0.2  
-0.4  
-0.8  
0.0  
4W  
-0.1  
-0.3  
-0.7  
-1.3  
-2.5  
-0.1  
-0.2  
-0.4  
-0.8  
-1.6  
-0.1  
-0.1  
-0.3  
-0.5  
-1.0  
5
10  
25  
50  
100  
5
10  
25  
50  
100  
5
0.07  
0.13  
0.33  
0.67  
1.33  
0.04  
0.08  
0.20  
0.40  
0.80  
0.02  
0.05  
0.12  
0.25  
0.50  
1.5  
2.5  
4.0  
7.7  
14.3  
25.0  
1.0  
2.0  
4.8  
9.1  
16.6  
0.6  
1.2  
3.0  
10  
25  
50  
100  
-0.1  
-0.1  
-0.3  
-0.5  
5.8  
11.0  
note : Figures based on specifications supplied by Van Damme Cables (VDC)  
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TCS Compact series  
Servicing Information  
If any of the drive units in your TCS series product should cease functioning and need a  
replacement re-cone or diaphragm, you are advised to remove the faulty unit from the  
installation, remove the faulty drive unit(s) and send it to a professional service centre  
authorised to repair Turbosound loudspeakers.  
Removal of the low frequency woofer  
The perforated steel loudspeaker grille is a push fit in the loudspeaker frame. To remove  
the grille, using a pointed object such as a pin inserted through the mesh of the grille,  
gently lever the grille away from the frame. Set the grille aside for later re-assembly.  
Undo the screws holding the back can in place and place to one side. The low frequency  
drive unit will be accessible once the line transformer has been removed from the back of  
the loudspeaker frame. Make a note of the driver terminal polarity for later reconnection.  
Disconnect the cables from the drive unit and completely remove the driver from the  
speaker being careful not to damage the cone or suspension. Do not place the driver  
near to any equipment or media that may be adversely affected by strong magnetism,  
e.g. CRT monitors or tape of any kind.  
Removal of the high frequency tweeter  
Disconnect the cables from the tweeter, making a note of the driver polarity for later  
reconnection. Undo the screws holding the tweeter in place and carefully lift it out and  
away from the speaker. Do not place the driver near to any equipment or media that may  
be adversely affected by strong magnetism, e.g. CRT monitors or magnetic tape of any  
kind.  
To reinstate the driver(s) simply reverse the above procedure, making sure you observe  
the correct polarity when reconnecting the cables back into the terminals of the drive  
units.  
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About EASE Data  
Sound system projects are more likely to go to plan when you have a reliable indicator in  
advance of how the speaker system will perform in the venue. Turbosound engineers are  
able to assist you with your system design using the industry-standard EASE program to  
aid in the quest to find the perfect system for the job. Although we cannot replace the  
role of an acoustical consultant, we can provide a good indication of system performance  
to back up the proposal.  
Statistically, more jobs are won and more sales are made when a project has been  
properly and scientifically designed, along with the facility to show the client a convincing  
visual representation of the finished design. This cuts a large amount of guesswork out of  
the process, and is the reason why we actively encourage you to make use of our design  
resources to help you or your customers to win that next job. EASE is also a useful tool  
for addressing acoustic issues in the venue, for example to justify adding acoustic  
treatment to a room such as cladding a wall or balcony face. Having a graphical model  
can strengthen the proposal and ultimately ensure a better result.  
Overview  
EASE (Enhanced Acoustic Simulator for Engineers) is a sophisticated sound system  
design tool and acoustic simulation software package for Windows PCs, created by SDA  
(Software Design Ahmert GmbH, Berlin). It enables extremely accurate acoustic  
calculations to be realised both for indoor venues and outside spaces. In this way  
acoustic parameters and properties can be calculated for audience areas or even  
particular listener seats. EASE is particularly useful where a large number of speakers  
may be used, i.e. in concert halls, stadiums and public buildings.  
The EASE application itself is comprehensive and can account for a wide range of surface  
properties, i.e. absorption and dispersion and also early reflections, directivity and phase  
characteristics. 3D acoustical models can be created for computing parameters such as  
RT (Reverb Time), IR (Impulse Response) and SPL (Sound Pressure Level) distribution for  
sound reinforcement and speech intelligibility.  
There are a variety of module upgrades that enhance EASE’s capabilities, such as AURA  
(Analysis Utility for Room Acoustics) which has become a standard for modelling spaces  
in three dimensions along with the VISION rendering engine. EASE VIEW loads OpenGL  
and Mapping files as used in the design.  
EARS is an auralisation module that allows the determination of audio quality, and the  
comparison of old against new sound system installs, by locating sound sources in the  
virtual room, or open air space, using convolving and binaural techniques.  
EASERA is used for evaluating and measuring the transmission properties of both spaces  
and electrical equipment.  
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TCS Compact series  
Use of Turbosound EASE data  
Turbosound provides pre-measured EASE data to aid sound system designers in making  
appropriate choices with the type and positioning of speakers in the required venue. The  
suitability of certain models can be assessed and the installation can be improved by  
adapting the frequency response consequently.  
The speakers are measured from the centre of an entire globe with 5 degree resolution  
and third octave frequency resolution.  
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TCS Compact series  
Technical Specifications  
Model  
TCS-C50T  
Dimensions  
HxWxD  
268mm (10.5”) dia x 83mm (3.3”) deep excl back box  
268mm (10.5”) dia x 219mm (8.6”) deep incl back box  
Net Weight  
3.4kg (7.5lbs)  
1 x 5” (127mm) LF driver, 1 x 1” (25mm) HF tweeter  
75Hz - 22kHz  
Components  
Frequency Response ±4dB  
Nominal Dispersion  
Power Handling  
180ºH x 180ºV @-6dB points  
75 watts r.m.s., 150 watts program  
92dB (half space), 90 dB (full space)  
Sensitivity  
1 watt @ 1 metre  
Maximum SPL continuous->  
peak->  
110dB  
116dB  
Line transformer taps  
60 watts, 30 watts, 15 watts (100 volt line)  
60 watts, 30 watts, 15 watts, 7.5 watts (70 volt line)  
Impedance  
Construction  
Grille  
16 ohms nominal  
Paintable injection moulded ABS plastic  
Powder coated perforated steel  
Connectors  
Protection  
Standards  
Options  
Phoenix 4-way connector for input and link  
Thermal fuse disconnects speaker from distributed system  
Conforms to BS5839 part 8 1988 and IEC/EN 60849 fire prevention  
Without back can (TCS-C50TS)  
without back can or transformer (TCS-C50S)  
Notes:  
1.  
2.  
3.  
Frequency response is measured on axis  
Nominal Dispersion and sensitivity are an average over stated bandwidth  
Maximum continuous SPL is measured by using unweighted diode-clipped pink noise in a half space  
environment.  
4.  
Maximum peak SPL is verified by subjective listening tests of familiar program material, before the  
onset of perceived signal degradation  
NB: Due to continuing product improvement these specifications are subject to change.  
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Spares List  
Spares  
LF Driver  
LS-50 5” loudspeaker  
TW-52 tweeter  
PX-TCS-C50T  
MG-C50  
HF Tweeter  
Passive Crossover  
Network  
Grille  
Tile bridge  
TCS-C50TB  
TCS-C50T manual  
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TCS Compact series  
Warranty  
Limited Warranty  
This Turbosound loudspeaker product is warranted to the original end-user purchaser  
and all subsequent owners for a period of two (2) years from the original date of  
purchase.  
Warranty Coverage  
Warranty coverage includes defects in materials and workmanship. It does not include:  
damage caused by accident, misuse, abuse, neglect or modification by any other  
person other than an authorised Turbosound representative,  
damage caused by overdriving, use with unsuitable amplifiers or amplifier  
failure,  
damage caused by failure to operate the product in accordance with the  
instructions contained in the user’s manual,  
damage occurring during shipment in transit,  
claims based upon any misrepresentations by the seller,  
products which do not have the original components as specified in the product  
engineering information,  
products on which the serial number has been removed or defaced.  
Shipping  
Should any fault develop with a component of your Turbosound system, please return  
the product, freight pre-paid, in its original packing carton, along with proof of purchase  
such as the original bill of sale or receipted invoice, and a description of the suspected  
fault to:  
Turbosound Ltd. (Att: Customer Service), Star Road, Partridge Green, West Sussex RH13  
8RY, England, or your local authorised Turbosound representative.  
The product serial number must be quoted in all correspondence relating to the claim.  
Insurance is recommended, as Turbosound or its representatives are not liable for loss or  
damage in transit. Turbosound will pay for return freight costs should repairs be covered  
under warranty.  
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TCS Compact series  
Incidental and consequential damages  
Turbosound's liability is limited to the repair or replacement, at our option, of any  
defective product, and shall not be liable for any incidental and consequential damages  
including, without limitation, injury to persons or property or loss of use.  
Limitation of implied warranties  
All implied warranties, including warranties of merchantability and fitness for a particular  
purpose, are limited in duration to the length of this warranty.  
This warranty is in addition to, and in no way detracts from, your statutory rights as a  
consumer. No other warranty is expressed or implied.  
Please record your purchase information below for future reference:  
Dealer Name ......................................................................................................................  
Dealer Address ..................................................................................................................  
.............................................................................................................................................  
.............................................................................................................................................  
Post / Zip Code ..................................................................................................................  
Dealer telephone / fax .......................................................................................................  
Invoice number .................................................................................................................  
Date of purchase ...............................................................................................................  
Unit serial number ............................................................................................................  
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Notes  
TCS-C50T manual  
page 21  
 

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