Chord BerTTi User manual

Chord Electronics
Product Communication | English
The Pumphouse, Farleigh Lane, East Farleigh, Kent,
ME16 9NB. Great Britain.
[phone]
[e-mail]
chordelectronics.co.uk
BerTTi
Manual
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V.1

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BerTTi | User manual
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1 Contents
Introduction 2
Support and warranty 3
Connections and controls 4
Power and earthing connection 5
Inputs 6
Connecting to loudspeakers 7
Power on/o 8
12 V trigger 9
Placement 10
Technical specifications 11

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BerTTi | User manual
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2 Introduction
The BerTTi is a next-generation 75-watt stereo power amplifier containing the very latest ULTIMA circuit
topology. This manual provides all the information required to set up and operate the BerTTi. Further
details can be found online at: chordelectronics.co.uk/product/bertti.
2.1 Safety and care
•Do not allow the device to come into contact with water or liquids.
•Do not spray cleaning products onto the device. Use a clean microfibre cloth to clean the casework.
•A further safety document is included in the box.
•The device does not contain any user-serviceable components. Do not attempt to open, dismantle or
apply internal third-party devices to it. Doing so will void the warranty.

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BerTTi | User manual
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3 Support and warranty
For support, please contact the
supplying retailer before contacting
Chord Electronics. Further help can be
found at chordelectronics.co.uk/get-
support
At the point of sale, Chord Electronics Ltd. provides the BerTTi with a comprehensive three-year
warranty, which covers defects in materials and workmanship through fair usage.
The warranty is transferable with proof of purchase, however, the warranty on ex-demonstration units
begins from the retailer‘s date of purchase. Warranty claims must be made via the supplying retailer.
For the best possible support and service, please register your purchase with Chord Electronics at:
chordelectronics.co.uk/register-product/

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BerTTi | User manual
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4 Connections and controls
4.1 Rear and front panels
ABD
CEFJK L M
G H
N
APower on/o switch FRight channel speaker negative
terminal
LLeft channel line level RCA input
B10 A IEC AC inlet G12 V trigger connection MLeft channel speaker positive
terminal
CRight channel speaker positive
terminal
HGrounding post NPower/standby switch and status
LED
DRight channel line level RCA
input
JLeft channel speaker negative
terminal
ERight channel balanced XLR
input
KLeft channel balanced XLR input

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BerTTi | User manual
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5 Power and earthing connection
The BerTTi has been designed to connect to power with the supplied 10 A power cable. If hum or buzz
occurs, try either a good-quality earthed power distribution block, or the rear panel ground terminal and
connect to an available earth point.

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BerTTi | User manual
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6 Inputs
Connect the BerTTi to any preamp output using good-quality standard RCA cables, or connect using
balanced XLR cables. Note only one input type can be used at once: the BerTTi does not support
‘switching’ between the input connection types.
OR
OR
OR OR
OR
OR
WARNING: Please DO NOT attempt to use both the RCA and XLR inputs simultaneously. Any
subsequent damage to connected equipment will not be covered by Chord Electronics.

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BerTTi | User manual
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7 Connecting to loudspeakers
Connect the BerTTi to loudspeakers using good-quality loudspeaker cable, terminated with 4 mm
banana plugs. Unscrew BerTTi’s loudspeaker terminals to use spade-plug-terminated cable. Although
bare wire can be used, it is not recommended.
or

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BerTTi | User manual
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8 Power on/o
With all cable connections successfully made and the volume on connected preamps set to zero, switch
the rear-panel power button to ‘on’ and depress the front panel button to switch the unit from standby
mode to ‘on’. The front panel LED will turn from green (standby) to cyan (on), once the BerTTi has
performed its safety check. BerTTi is ready for use and the preamp volume can now be carefully
increased for playback.
The BerTTi consumes very little energy in standby mode and if desired, can be left switched ‘on’ at all
times.

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BerTTi | User manual
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9 12 V trigger
The BerTTi includes a 12 V trigger input. Partnering devices with a compatible 12 V trigger output can be
connected for simultaneous power on/o from standby mode. When connected the front panel button
LED will turn yellow and once triggered the LED will change to purple.

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BerTTi | User manual
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10 Placement
The BerTTi benefits from extensive casework ventilation, plus a cooling fan for more demanding
environments. Always ensure the BerTTi is used in a well-ventilated setting, away from direct sunlight
and heat sources, with sucient space (at least 10 cm) around the unit.
The BerTTi has internal thermal protection which increases the speed of the cooling fans if excessive
temperatures are reached. Should this occur, check the BerTTi has adequate ventilation and/or reduce
the volume level until the unit has cooled and the fans have slowed. It is normal for the unit to become
warm when operating.
If stacking the BerTTi with other units, it is advisable to place the unit on top of others.

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BerTTi | User manual
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11 Technical Specifications
Please go online for the most recent specifications: www.chordelectronics.co.uk
Dimensions 59 mm (H) 235 mm (W) 256 mm (D)
Weight 3.75 kg
Output power 75 W into 8 Ω
Frequency range 5 Hz-100 kHz +/- 0.5 dB
THD 0.008 %
Signal-to-noise ratio 87 dB (A-weighted)
Input impedance 100 kΩunbalanced/balanced
Input sensitivity 0.78 V
Gain 30 dB