TSB-212
SUB-BASS LOUDSPEAKER
QUICK START GUIDE
Turbosound Ltd.
Star Road, Partridge Green
West Sussex RH13 8RY England
Tel: +44 (0)1403 711447 Fax: +44 (0)1403 710155
web: www.turbosound.com
Version 1.0 ©Turbosound 4/05
quick start
TSB-212
The TSB-212 is a general purpose band-pass subwoofer designed to add low frequency
reinforcement to Turbosound loudspeakers from the IMPACT, TCS, TXD, and TQ ranges.
It utilises two very high excursion 12” low frequency drivers connected in parallel to give a
combined impedance of 4 ohms. These drivers are housed in a 15mm (5/8”) birch plywood
enclosure with stacking feet, multiple M10 internal rigging points and a perforated steel grille.
Input and link connections are provided via a pair of Speakon NL4 connector located on a recessed
panel at the rear of the cabinet.
Amplifier considerations
Turbosound speaker 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. Turbosound power amplifiers such as the T-45 and T25 are recommended for this purpose.
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 therefore 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.
In general, the more powerful the amplifier, the better it will sound, provided that it is not driven
into sustained clipping. 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.
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.
The TSB-212 is rated at 800 watts r.m.s., 1600 watts program and the impedance is 4 ohms. It
should be used with an amplifier capable of delivering long term power of 1600 watts at 4 ohms.
Crossovers
The TSB-212 should be used with a professional quality external electronic crossover providing a
24dB/octave low-pass filter at 125Hz and a 24dB/octave high-pass Butterworth filter at 30Hz, and
limiting functions. Turbosound LMS series loudspeaker management systems are recommended
for this purpose.
TSB-212 quick start guide
Page 2
Placement
Single TSB-212 units can generally be placed
inconspicuously virtually anywhere in a room, and
in particular can be concealed under seating or in
custom-built enclosures. Locating the subwoofer
against a wall or in a corner is recommended.
When using multiple subwoofers it is preferable
to stack these in a block in order to take advantage
of mutual coupling between units, which will
result in improved bass response and a lower cutoff frequency. Speakon cable interconnects are
neatly routed at the rear of the box, allowing a
stack to be placed directly against a wall.
quick start
TSB-212
mid-high amplifier
bass amplifier
bass amplifier
Speakon pin connections
The Speakons are wired as shown below
Speakon pin wiring
Pin 1+ positive
Pin 1- negative
Pin 2+ N/C
Pin 2- N/C
Technical Specifications
Dimensions 420mm x 1000mm x 470mm (16.5” x 39.4” x 18.5”)
Net Weight 47kgs (103.4lbs)
Frequency Response 38Hz to 200Hz @±4dB (useful to 30Hz)
Power Handling 800 watts r.m.s., 1600 watts program
Impedance 4 ohms nominal
Sensitivity 100dB, 1 watt @ 1 metre
Calc Max SPL 132dB continuous, 138dB peak
Recommended Crossover 24dB/ocatve low-pass at 125Hz, 24dB/octave Butterworth
high-pass at 30Hz
Construction 15mm (5/8”) birch plywood
Rigging 16 x M10 internal rigging points
Options TurboBlue or white semi-matt textured paint
Spares & Accessories LS-1220 12” LF driver
RC-1220 recone for LS-1220
1+
2-
1-
2+
FrontBack
TSB-212 quick start guide
Page 3
quick start
TSB-212
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 for loudspeakers 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 person other
than an authorised Turbosound representative,
• damage caused by failure to operate the product in accordance with the instructions
contained in the user manual,
• damage occurring during shipment in transit,
• claims based on any misrepresentation 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), 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.
Turbosound Ltd., Star Road, Partridge Green, West Sussex RH13 8RY UK
t: +44 (0)1403 711447 f: +44 (0)1403 710155 www.turbosound.com
TSB-212 quick start guide
Page 4
Loading...