PROFESSIONAL STEREO AMPLIFIERS
USER GUIDE
9672/9673 - September 2010 - Version 1.0
ENGLISH
Ti SERIES - Professional stereo amplifiers
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Ti SERIES - Professional stereo amplifiers
1 - Safety information
Important safety information
This unit is intended for indoor use only. Do not use it in a wet,
or extremely cold/hot locations. Failure to follow these safety instructions could result in fire, electric shock, injury, or damage to
this product or other property.
Any maintenance procedure must be performed by a CONTEST
authorised technical service. Basic cleaning operations must thoroughly follow our safety instructions.
This product contains non-isolated electrical components. Do not
undertake any maintenance operation when it is switched on as
it may result in electric shock.
Symbols used
This symbol signals an important safety precaution.
The WARNING symbol signals a risk to the user’s physical integrity.
The product may also be damaged.
The CAUTION symbol signals a risk of product deterioration.
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WARNING : This unit contains no user-serviceable parts. Do not open the housing or attempt
any maintenance by yourself. In the unlikely even your unit may require service, please contact your
nearest dealer.
In order to avoid any electrical malfunction, please do not use any multi-socket, power cord extension
or connecting system without making sure they are
Sound levels
Our audio solutions deliver important sound pressure levels
(SPL) that can be harmful to human health when exposed
during long periods. Please do not stay in close proximity of
operating speakers.
Recycling your device
• As HITMUSIC is really involved in the environmental cause,
we only commercialise clean, ROHS compliant products.
• When this product reaches its end of life, take it to
a collection point designated by local authorities. The
separate collection and recycling of your product at the time
of disposal will help conserve natural resources and ensure
that it is recycled in a manner that protects human health
and the environment.
perfectly isolated and present no defect.
Instructions and recommendations
1 - Please read carefully :
We strongly recommend to read carefully and understand the safety instructions before
attempting to operate this unit.
2 - Please keep this manual :
We strongly recommend to keep this manual with the unit for future reference.
3 - Operate carefully this product :
We strongly recommend to take into consideration every safety instruction.
4 - Follow the instructions:
Please carefully follow each safety instruction to avoid any physical harm or property
damage.
5 - Avoid water and wet locations :
Do not use this product in rain, or near washbasins or other wet locations.
6 - Installation :
We strongly encourage you to only use a fixation system or support recommended
by the manufacturer or supplied with this product. Carefully follow the installation
instructions and use the adequate tools.
Always ensure this unit is firmly fixed to avoid vibration and slipping while operating
as it may result in physical injury.
7 - Ceiling or wall installation :
Please contact your local dealer before attempting any ceiling or wall installation.
8 - Ventilation :
The cooling vents ensure a safe use of this product, and avoid any overheating risk.
Do not obstruct or cover these vents as it may result in overheating and potential
physical injury or product damage. This product should never been operated in a
closed non-ventilated area such as a flight case or a rack, unless cooling vents are
provided for the purpose .
9 - Heat exposure :
Sustained contact or proximity with warm surfaces may cause overheating and product
damages. Please keep this product away from any heat source such as a heaters,
amplifiers, hot plates, etc...
10 - Electric power supply :
This product can only be operated according to a very specific voltage. These
information are specified on the label located at the rear of the product.
11 - Power cords protection:
Power-supply cords should be routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying particular attention to cords at
lugs, convenience receptacles and the point where they exit from the fixture.
12 - Cleaning precautions :
Unplug the product before attempting any cleaning operation. This product should be
cleaned only with accessories recommended by the manufacturer. Use a damp cloth
to clean the surface. Do not wash this product.
13 - Long periods of non use :
Disconnect the unit’s main power during long periods of non use.
14 - Liquids or objects penetration :
Do not let any object penetrate this product as it may result in electric shock or fire.
Never spill any liquid on this product as it may infiltrate the electronic components
and result in electric shock or fire.
15 - This product should be serviced when :
Please contact the qualified service personnel if :
- The power cord or the plug has been damaged.
- Objects have fallen or liquid has been spilled into the appliance.
- The appliance has been exposed to rain or water.
- The product does not appear to operate normally.
- The product has been damaged.
16 - Inspection/maintenance :
Please do not attempt any inspection or maintenance by yourself. Refer all servicing
to qualified personnel.
17 - Operating environment :
Ambient temperature and humidity: +5 - +35°C, relative humidity must be less than
85% (when cooling vents are not obstructed).
Do not operate this product in a non-ventilated, very humid or warm place.
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ENGLISH
Ti SERIES - Professional stereo amplifiers
1 - Introduction
Thank you for purchasing one of the Ti series amplifiers.
You are now in possession of a high-quality amplifier, which, we are quite certain, will bring you satisfaction.
The Ti amplifiers are the fruit of many years of Audiophony® experience and efforts.
Its easy to use, fast and very resistant. In brief: it is extremely efficient.
The user guide you are currently reading will allow you to quickly get familiar with the many functions and
possibilites offered by the Ti amplifiers.
Please keep it within reach during the first few uses to fully benefit from your product.
2 - Technical specifications
- Class D amplification
- Switched-mode power supply guaranteeing a very low weight
- Stereo, parallel or bridge modes
- Extremely precise and independent volume settings for each channel
- LED indicators allowing you to visualise the status of your device
- Convection-cooled
- Balanced inputs via XLR and Jack TRS sockets
- Unbalanced inputs via RCA sockets
- Outputs via Banana/screw terminal or 4-pole Speakon® connectors
- Thermal and DC independent protection for each channel
- Compatible with 19" racks
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Ti SERIES - Professional stereo amplifiers
4 - Description
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4.1 - Front panel
21 43
Ti
[1] - Mounting brackets
Allow you to install your amplifier within 19" (482mm)
racks.
[2] - Power button
[3] - Indicator LEDs
Signal LED:
This green and yellow LED lights up when a signal
is detected via one of the input.
Clip LED:
Lights up when the clip threshold has been
reached to indicate the input is saturated and its
output signal might be distorted.
Adjust the level output of your source in order to
correct this and prevent damages to your speaker
and amplifier. The sound quality will drastically
improve as well.
Note: Ti amplifiers feature two identical
channels (1 and 2), the description below
refers to a single channel for legibility
concerns.
Protect LED:
Lights up to indicate the channel is in protection
mode, the output will then be "cut" by an internal
relay.
Usually the Protect mode is activated when the
channel is overheating or serious problems occur
in order to protect speaker(s) connected to this
channel.
This LED briefly lights up upon activation of your
amplifier in order to avoid sending voltage peaks
to your speakers during the initialisation of your
amplifier.
[4] - Input attenuator
Each channel features its own input attenuator
allowing you to limit the incoming signal level.
This attenuator has 21 different levels. When on
the left, the signal is attenuated by 80 dB, when
on the right the signal is not attenuated and the
amplifier operates at full power. In mono bridged
mode, attenuator 1 affects both channels.
In Parallel mode, each attenuators only affects its
own channel.
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4.2 - Rear panel
Ti SERIES - Professional stereo amplifiers
1 5
2 6 74 3
[1] - XLR input socket
Allows you to receive line-level signals. This socket is able
to receive both symmetrical and asymmetrical signals.
However, we recommend to always use symmetrical signals
as they get you rid of parasitic noises caused by low quality
cables. Connect here your male XLR plug. Polarities are
spread as follows:
- Pin 2 = Signal +
- Pin 3 = Signal -
- Pin 1 = Ground
[2] - Parallel / Stereo / Bridge Selector
Allows you to select the current amplifier mode:
- Stereo: Standard mode, each channel amplifies its own
signal. (Minimum impedance of 2 ).
- Parallel: Input 1 signal is identically amplified by both
channels. (Minimum impedance of 2 ).
- Bridge: Both amplification channels are added up to
amplify Input 1 signal. (Minimum impedance of 2 ).
[3] - Outputs via Banana terminal
Allow you to connect your speakers via Banana connectors
or directly connect stripped cables. Use the red terminals to
connect your speakers in Bridge mode. Caution: dangerous
output voltage.
5 - Connections
[4] - Jack input socket
Allows you to receive line-level signals. This socket is able
to receive both symmetrical and asymmetrical signals.
However, we recommend to always use symmetrical signals
as they get you rid of parasitic noises caused by low quality
cables. Connect here your male Jack plug. Polarities are
spread as follows:
- Tip = Signal +
- Ring = Signal -
- Body = Ground
[4] - RCA input
Allows you to receive asymmetrical line-level signals.
Signals are spread as follows:
- Tip = signal
- Body = Ground
[6] - Speakon® outputs
Allow you to connect your speakers via cable equipped
with Speakon® connectors. Please refer to next chapter for
more information about connections.
[7] - Power input socket
Connect here the supplied power cord.
5.1 - Connections via rear terminal
Stereo mode
Caution:
Minimum
impedance of 4
per channel.
22
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Or
1
11
2
Or
Ti SERIES - Professional stereo amplifiers
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Parallel mode
Or
11
Mono-bridged mode
Or
11
5.2 - Connections via Speakon® connectors
1
Caution:
Minimum
impedance of 4
per channel.
2
Caution:
Minimum
impedance of 8
per channel.
Standard stereo mode
11
22
Or
HP+ on 1 +
2
HP- on 1 -
Or
Caution:
Minimum
impedance of 4
per channel.
HP+ on 1 +
HP- on 1 -
1
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Ti SERIES - Professional stereo amplifiers
Stereo mode via one single output
Ou
11
22
Or
Or
Parallel mode
11
Caution:
Minimum
impedance of 4
per channel.
HP+ on 1 +
2
HP- on 1 -
HP+ on 1 +
HP- on 1 -
HP+ on 2 +
HP- on 2 -
1
2
Caution:
Minimum
impedance of 4
per channel.
Mono-bridged mode
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Or
11
HP+ on 1 +
HP- on 1 -
HP+ on 1 +
HP- on 2 -
1
Caution:
Minimum
impedance of 8
per channel.
Ti SERIES - Professional stereo amplifiers
6 - Connectors
6.1 - Inputs
Balanced
1
XLR
2
1 = Ground
3
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Unbalanced
1
2
1 = Ground
3
3 = Coldspot (-)
Sleeve
Jack 6.35
RCA
6.2 - Outputs
2 = Hotspot (+)
Balanced TRS
Body
Sleeve
Ground / Shield
Center
Signal
Ring
Tip
Ground / Shield
2 or 4-pole Speakon®
Ring
Coldspot (-)
Hotspot (+)
Tip
Shunt between
1 and 3 pins
Unbalanced TS
Sleeve
Tip
2 = Hotspot (+)
Sleeve
Ground / Shield
Tip
Signal
Banana / Screw terminal
Note: Your speakers cables feature
2-pole Speakon® connectors can still be
connected to the 4-pole outputs.
Warning:
Dangerous voltage output.
Note: When using stripped cables, please
make sure no wire comes into contact
with both polarities. Please use tinned
cables to get rid of eventual short-circuit
problems.
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7 - Protection systems
Ti SERIES - Professional stereo amplifiers
Because Audiophony knows what sound
professionals need, our SMi amplifiers are equipped
with many protection systems to guarantee the best
possible lifespan for the internal components of
your amplifiers and all devices connected to their
outputs.
- SoftStart System
Upon activation of your amplifier or activation of one
of the protection system, the Softstart system will
slowly increase the output so the speakers will not
have to deal with sudden peaks.
- Thermal protection
The thermal protection circuit will open output relays
in case of excessively high temperature.
The Protect LED lights up during this process. In
the power transformer temperature gets too high,
its temperature sensor will disconnect all power
outputs, The Protect and Clip LEDs will light up
while the ON LED lights off. Cooling fans will
continue operating at low speed and your amplifier
will be fully functional again once an acceptable
temperature has been reached.
- Short-circuits
This protection takes effect upon detection of
a short-circuit via one of the output (defective
loudspeaker, poorly isolated speaker cable, etc.).
This system detects short-circuits such as
excessively low impedances and reduce the voltage
output of your amplifier to prevent the destruction of
power transistors.
Affected outputs will be disconnected by the thermal
protection system if the short-circuit continues.
- DC Offset protection
The output relays will open automatically to
prevent damage to your speakers if one of the
channels detects direct current via one of its output
connectors.
- Ultra-low frequencies (<40 Hz)
The internal high-pass filter gets rid off ultra-low
frequencies. However, if such frequencies were to be
detected, a relay will eliminate them.
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Important notes about the Bridge mode
1 - In Bridge mode, the load impedance must never go below 8 Ohms.
By connecting 2 x 8 Ohms speakers in parallel mode on a single output, this output
will have a 4 Ohms impedance.
To determine the impedance connected to an output, please proceed as follows:
In case of 2 x 8 Ohms speakers:
CHARGE = 1/(1/8 Ohms + 1/8 Ohms) = 1/ (0,125+0,125) = 1/0,25 = 4 Ohms
2 - In stereo mode, the minimum impedance is 2 Ohms: 4 x 8 Ohms speakers
connected
in parallel per side.
3 - Never connect the ground of your speakers.
Ti SERIES - Professional stereo amplifiers
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8 - Technical specifications
Ti300 Ti500
Volume and power output in stereo mode
8 Ohms 2 x 80 W RMS 2 x 130 W RMS
4 Ohms minimum 2 x 150 W RMS 2 x 250 W RMS
Volume and power output in mono-bridged mode
8 Ohms minimum 1 x 300 W RMS 1 x 500 W RMS
Signal-to-Noise ratio Lower than 90 dB
Input sensitivity 4 dBu +/-2dB
Distortion
At 1KHz and 1/2 max. power Lower than 0,1%
Crosstalk at full power - 65 dB at 1 KHz
Frequency response (4 Ohms / 1W) +0,5dB ; 20Hz-20KHz
Input impedance Unbalanced: 15 KOhms / Balanced: 30 KOhms
Clip level 0dB
Cooling system Convection
Connectors
Input Balanced XLR and Jack TRS + Unbalanced RCA
Output Screw terminal + 4-pole Speakon®
Settings
Front panel Power switch / Channels 1 and 2 settings
Rear panel Mode selector
Indicators Protect (red) / Clip (yellow) / Signal (green)
Protections
Power supply 100Vac/230Vac - 50/60Hz
Dimensions 482 mm x 44 mm x 330 mm
Net weight 4,3 Kg 4,7 Kg
Short-circuit / Current limiter / DC offset / Thermal
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Because AUDIOPHONY® takes the utmost care in its products to make sure you only get the best possible quality, our products are
subjects to modifications without prior notice. That is why technical specifications and the products physical configuration might differ
from the illustrations.
Make sure you get the latest news and updates about the AUDIOPHONY® products on www.audiophony.com
AUDIOPHONY® is a trademark of HITMUSIC S.A. - Zone Cahors sud - 46230 FONTANES - FRANCE
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