Chord Electronic BerTTi 75-watt Stereo Power Amplifier User Manual
- June 12, 2024
- Chord Electronic
Table of Contents
Chord Electronic BerTTi 75-watt Stereo Power Amplifier
Product Information
The Chord Electronics BerTTi is a next-generation 75-watt stereo power amplifier that features the latest ULTIMA circuit topology. It is designed to deliver high-quality audio performance and is suitable for use with various audio systems. The amplifier comes with a user manual that provides all the necessary information for setup and operation.
Safety and Care
It is important to note that the warranty will be void if any
internal third-party devices are applied to the amplifier.
Support and Warranty
For support and warranty information, please refer to the user manual.
Connections and Controls
The BerTTi amplifier has various rear and front panel connections and controls:
- Power on/off switch
- 10 A IEC AC inlet
- Speaker terminals for both left and right channels
- Line level RCA inputs for both left and right channels
- Balanced XLR inputs for both left and right channels
- 12 V trigger connection
- Grounding post
- Power/standby switch and status LED
Power and Earthing Connection
The BerTTi amplifier should be connected to power using the supplied 10 A power cable. If hum or buzz occurs, it is recommended to use a good-quality earthed power distribution block or connect the rear panel ground terminal to an available earth point.
Inputs
The BerTTi amplifier can be connected to any preamp output using standard RCA cables or balanced XLR cables. Please note that only one input type can be used at a time, and switching between the input connection types is not supported. It is important not to attempt to use both the RCA and XLR inputs simultaneously, as it may cause damage to connected equipment that will not be covered by Chord Electronics.
Connecting to Loudspeakers
To connect the BerTTi amplifier to loudspeakers, it is recommended to use good-quality loudspeaker cables terminated with 4 mm banana plugs. If using spade-plug-terminated cable, unscrew the amplifier’s loudspeaker terminals. While bare wire can be used, it is not recommended.
Power On/Off
Refer to the user manual for instructions on how to power on or off the BerTTi amplifier.
12 V Trigger
The BerTTi amplifier includes a 12 V trigger input. It can be connected to partnering devices with a compatible 12 V trigger output to enable simultaneous power on/off from standby mode. The front panel button LED will change color to indicate the status of the trigger.
Placement
Refer to the user manual for guidelines on the proper placement of the BerTTi amplifier.
Technical Specifications
For the most recent technical specifications, please visit the Chord Electronics website at www.chordelectronics.co.uk.
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
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. details can be found online at: chordelectronics.co.uk/product/bertti.
Support and warranty
For support, please contact the supplying retailer before contacting Chord Electronics. Further help can be found at chordelectronics.co.uk/getsupport
- 3 THREE YEAR WARRANTY
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/
Connections and controls
Rear and front panels
- A Power on/off switch
- B 10 A IEC AC inlet
- C Right channel speaker positive terminal
- D Right channel line level RCA input
- E Right channel balanced XLR input
- F Right channel speaker negative terminal
- G 12 V trigger connection
- H Grounding post
- J Left channel speaker negative terminal
- K Left channel balanced XLR input
- L Left channel line level RCA input
- M Left channel speaker positive terminal
- N Power/standby switch and status LED
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.
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.
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.
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.
Power on/off
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
.
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/off from
standby mode. When connected the front panel button LED will turn yellow and
once triggered the LED will change to purple.
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 sufficient 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 reducethe 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.
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 kΩ unbalanced/balanced
- Input sensitivity: 0.78 V
- Gain: 30 dB
References
- Chord Electronics - High-End Audio for Hi-Fi Enthusiasts & Professionals
- Support | Chord Electronics
- BerTTi - Chord Electronics Ltd
- Register Your Product | Chord Electronics