Burson C3XP User manual

Burson Composer 3X Performance (C3XP)
USB DAC / Pre Amplifier
User Manual
Register for warranty Ref. page 8 for details
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Thank You.
All of us at Burson Audio would like to say thank you, and congratulations for purchasing the Burson
Composer 3XP. We sincerely believe that your Burson Composer 3XPP is an intelligent investment that
will bring you many years of musical enjoyment and satisfaction.
We understand how eager you are to begin listening and we want you to become familiar with the full
capabilities of the Burson Composer 3XPP. However, before powering on the device, we encourage
you to look through the manual.
Team Burson 
The less the equipment tampers with the music, the greater the music becomes. This has been the
core design philosophy of Burson Audio since 1996. If the equipment is honest and transparent then
the proper tempo, dynamics and tone will materialize as a natural expression of the music and it
becomes unnecessary to flavor the original sound. We believe that this ideal can never be achieved
through standard circuitry building blocks such as opamps, IC regulators or even standard
transformers. Instead we work towards this ideal through the research and development of
customized solid-state circuitries that are developed specifically to suit our applications. Only then
will each and every component involved be pushed to their performance peak. And only then will the
end result be consistent with our idealism.
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Team Burson
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XLR to RCA Output:
To achieve an ideal sonic performance, the XLR outputs of the Composer 3XP are direct coupling. ie. It
has no coupling capacitors or transformers on the audio signal path.
However, direct coupling outputs are not compatible with off-the-shelf XLR to RCA adaptors like the
ones showing below. Using such adaptors to connect the C3X to any single-ended amplifier with RCA
inputs will damage the internal opamps of the C3XP.
Therefore, to safely connect the Composer 3XP to any single-ended amplifiers, please use the
transformer type of adapters below.
Unpacking
After carefully unpacking your Burson Composer 3XP, inspect for any shipping damage and call your
dealer immediately if any is found. Do not plug your Burson Composer 3XP into any outlet if you find
shipping damage. Please save all packing materials so the unit can be easily and safely shipped if the
need arises.
The Accessories
●Composer 3XPP Headphone Amp / Pre Amp /
DAC
●External Power Supply 24V 3A
●USB Data cable
●Remote control unit
●Hex Key / Spare Fuse / Spare IC opamps for
troubleshooting
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2

Basic Setup 
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3

Connections
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4

USB interface software setup guide.
For OSX, iOS, Andriod system, no driver is needed. For Windows OS driver download and setup
procedures please visit our main website for support: https://www.bursonaudio.com/downloads/
(Please download the latest Windows driver: Burson_UsbAudio_v4.59.0_2019-04-02_setup.exe)
Break-in, Warm-up and Caring.
The sound of the Burson Composer 3XP improves steadily within minutes after powered-up.
Depending on the resolution of the system and the attentiveness of the listener, you may find that
the sound continues to improve over the first several weeks of operation.
Never, connect or disconnect the headphone jack or the RCA cables from the Composer 3XP while
music is Composer 3XPing. This could damage the Composer 3XP. After your listening session, please
disconnect the headphone jack from the Composer 3XP to prolong the working life of its headphone
output socket.
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Menu Items
Input
USB
PCM 32bit 786K / DSD512
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Toslink 
PCM 24bit 192K
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Coaxial
PCM 24bit 192K
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Bluetooth
PCM 24bit 96K
Output
Pre Out
Pre Amp output with
volume control
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DAC Out
2V RMS line-level no
volume control
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Gain Level
High* / Low
High / Low
FIR Filter
Brickwall, CMFR, Reserved, AP Fast*, MP
Slow, MP Fast, LP Slow, LP Fast
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DPLL (DSD)
DPLL Off / Low / Mid / High*
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DPLL (PCM)
DPLL Off / Low / Mid / High*
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DE-EMPHASIS
On / Off*
Only turn on if your source
is a cassette tape player
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RESTORE SETTINGS
YES / NO
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* Default selection marked with*
FIR Filters are part of the digital process built in the DAC chip. These filter settings only affect
high-frequency roll-offs. Visual examples of their effects are showing in this post by veteran reviewer
Raoul Trifan [+] Learn More
For details on the various filter settings please refer to the official datasheet of the ESS9038 DAC: [+]
Learn More
Opamp Change & Upgrade
The Burson Composer 3XP allows opamp changing to customise its sound to the owner’s preference.
When changing opamps, please be aware of the following:
1. The opamp power supply voltage in the Burson Composer 3XP is +/-15V
2. There are 4 dual opamps inside the Composer 3XP
3. Please refer to the following diagram for the position and correct orientation of the opamps.
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The Initial Powering up
Make sure volume control has been turned to minimal when using your Composer 3XP for the first
time. Always power on your source machine first and your power amp last. When powering down your
system reverse the steps. 
Free Warranty Extension
All Burson Audio products are covered by 24 months + 12 months of warranty (See conditions below).
https://www.bursonaudio.com/warranty/.
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Warranty Conditions
Burson Audio warrants that this product shall be free from defects in materials and workmanship for:
The warranty period begins at the date of sale and is subject to the following requirements and
understandings:
1. This is a non-transferable warranty.
2. This product is only warranted in the country of original sale by Burson / authorised dealer.
3. The product must not have been modified in any manner whatsoever, or the warranty is
immediately voided.
4. The product must not have been stored in a humid, damp environment; nor subjected to
weather, water, or salt spray.
5. During the warranty period, Burson will replace a defective Burson Composer 3 with a similar
available product, at no cost to the owner for labour, materials, and shipping charges from
Burson.
6. Burson shall not, under any circumstances, be liable for any incidental or consequential
damages arising from the loss of property or other damage or losses due to the failure of a
Burson Composer 3. Burson will not pay for loss of use or inconvenience caused by the failure
of a Burson Composer 3. Burson will not pay for damage caused to other audio components
caused by the failure of the Burson Composer 3 within the limits allowed by Australian Law.
1. The compatibility between our USB receiver and your computer is dependent on software
drivers provided to Burson by the USB chip manufacturer. Therefore Burson cannot
guarantee the compatibility of our USB receiver during or after the warranty period. 
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