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OWNER’S MANUAL 

Configuration 

The TL-1121 subwoofer comes with dual 2 ohm voice coils.  This enables the user/installer 
to connect one TL-1121 subwoofer to an amplifier in either of the following two ways: 
 

1.

 

Parallel – Recommended (See fig. 1 below). 
- Connect the negative terminal of the amplifier to both the negative terminals of the 
subwoofer. 
- Connect the positive terminal of the amplifier to both positive terminals of the 
subwoofer. 
 
Connecting the TL-1121 2 ohm voice coils in parallel like this gives a load of 1 ohm to 
the amplifier.  The maximum output of the amplifier at 1 ohm should be around 
3,000w max and 1,000w RMS but no more.  The Competition Pro TL-1023 Class D 
Monoblock Subwoofer Amplifier (3,000w max and 1,000w RMS @ 1 ohm) is strongly 
recommended. 
 

2.

 

Series – Not Recommended (See fig. 2 below). 
- Connect the negative terminal of the amplifier to the negative terminal of one of the 
voice coils (left one for example). 
- Connect the positive terminal of that voice coil (left) to the negative terminal of the 
other voice coil (right). 
- Connect the positive terminal of the amplifier to the positive terminal of that voice 
coil (right). 
 
Connecting the TL-1121 2 ohm voice coils in series like this gives a load of 4 ohm to 
the amplifier.  This is not normally favourable as the parallel configuration gives a 
lower load impedance, getting more from the amplifier. 

 
If mounting the woofer outside the enclosure, pointing in, the connections will be made 
straight to the amplifier.  If mounting the woofer inside the enclosure, the connections will 
be made via the terminal block on the side of the subwoofer box.  The Competition Pro TL-
1120 enclosure is recommended, as it has been manufactured to match the TL-1121 and 
allow the woofer to perform to its full potential. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Fig. 2 – TL-1121 subwoofer connected in 
series, giving 4 ohm load to amplifier. 
Not normally recommended. 

Fig. 1 – TL-1121 subwoofer connected in 
parallel, giving 1 ohm load to amplifier. 
TL-1023 amplifier recommended. 



 

 

 

 

 

Technology 

The TL-1121 subwoofer boasts extraordinarily high cone excursion with extreme linearity 
and a simultaneous super-efficient heat discharge system.  An overview of some of the 
innovative, cutting edge patent pending theloudest.com technology implemented in this 
subwoofer is as follows: 
 

·

 

Symmetrical Magnetic Drive (SMD). 
Focuses on a unique piston technique that generates immense momentum drive, far 
greater than conventional designs. 
 

·

 

Direct coupling advanced layer bonding (DECAL). 
Generates superior strength magnetic flux from the magnet to the voice coils, relentlessly 
delivering huge amounts of power.  A specially extended top plate layer draws and directs 
the optimum strength of magnetic flux from the magnet to the voice coil.  Subsequently, 
the internal pole piece draws and concentrates the flux from across the air gap to the back 
plate, as a result, depositing immense flux in the lower air gap plate. 
There are three layers that make up the complete DECAL structure, each possesses a high 
permeability of magnetic flux.  The upper and lower layers double up as efficient heat 
dispersers as well as generating flux.  The thicker centre layer is where magnetic energy 
flow is maximised. 
 

·

 

Airborne Heat Relief System (AHERS). 
Efficiently transfers and dissipates heat to the outer massive heat-sink.  This allows the 
voice coils to consume more heat energy and to ultimately reproduce more power. 

 
As the predominant force resulting from the symmetry pushes the woofer up, further 
momentum is gained at the lower air gap plate in driving the cone back down to its original 
position.  When driven like this to full potential, in conventional woofers, the output is 
quickly capped as the woofer is strangled by accumulated heat in the air gap and voice coils.  
In the TL-1121 though, the DECAL and AHERS systems ensure that this doesn’t happen. 
Heat is efficiently dispersed out through the upper and lower DECAL layers to the massive 
outer heat sink chassis fast enough to allow more current to pass through the coils again. 
The AHERS allows more cool air to replace the warm air through the entire vented pole 
piece.  These two systems alone enable the woofer to consume extraordinarily higher 
amounts of current, therefore allowing the woofer to perform to uncompromisingly high SPL 
levels. 

 

OWNER’S MANUAL 

Features 

·

 

Ultra strong, rigid hybrid Kevlar fibre cone.  Comprehends the seriousness of competition 
rigors and the strict demand of audiophile quality reproduction. 

·

 

Progressive high linearity spider.  Provides excellent suspension during extreme SPL. 

·

 

Competition grade 4-layer Kapton voice coils.  Provide extra high power handling. 

·

 

Gigantic magnet assembly.  Composed of high density Strontium-Ferrite. 

·

 

Carbon-graphite enhanced density pure Aluminium die-cast frame and structure. 

·

 

Lead wires integrated into the damper for high reliability and efficient power transfer. 

·

 

24K Gold plated non-rust high conductance all-metal hexagonal lock tight binding post 
input terminals. 

Ž

 

 

 

Содержание Competition Pro TL-1121

Страница 1: ...yright TheLoudest com 2007 OWNER S MANUAL HIGH PERFORMANCE 12 SUBWOOFER DUAL 2 OHM VOICE COIL 3 000 Watts Max 1 000 Watts RMS SAFETY GUIDELINES TECHNICAL SPECIFICATIONS FEATURES INSTALLATION AND OPERATION INSTRUCTIONS ...

Страница 2: ...nd operating the subwoofer This will ensure correct configuration and operation While this manual details generally how to install the subwoofer if you do not have sufficient experience or tools it is best to have it professionally installed This subwoofer functions best in a system with a good quality source unit Connecting it up to a system which includes a poor quality source unit such as a sta...

Страница 3: ...ve far greater than conventional designs Direct coupling advanced layer bonding DECAL Generates superior strength magnetic flux from the magnet to the voice coils relentlessly delivering huge amounts of power A specially extended top plate layer draws and directs the optimum strength of magnetic flux from the magnet to the voice coil Subsequently the internal pole piece draws and concentrates the ...

Страница 4: ...ems by professionals Fig 6 The TL 1121 subwoofer installed in a ported enclosure Fig 5 The TL 1121 subwoofer installed in a sealed enclosure OWNER S MANUAL When connecting two TL 1121 subwoofers together the user installer can connect the subwoofers to an amplifier in either of the following two ways 1 Parallel Series See fig 3 below Connect the negative terminal of the amplifier to the negative t...

Страница 5: ... you can hear distortion Do not install this unit outside the car or anywhere where it could become damp or humid No matter how robust or powerful a subwoofer is designed to be any speaker s or where it can become exposed to the sun It should be installed in a dry and ventilated mechanical structure is physically susceptible to damage if played for a prolonged area inside the car period of time in...

Страница 6: ...iston area of cone and amplifier ends Disp Vol 1763 8 cm3 Displaced volume xmax x 2 x SD Coil diameter 76 4 mm Diameter of the voice coil Kapton 4 layer 3 Subwoofers connected out of Check the and connections all match Cms 0 1888 mm N The stiffness of the driver s suspension phase swap to test Magnet weight 5102 9 gr Weight of the magnet 180 oz Re 1 785 ohm DC resistance per voice coil Eq settings...

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