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I 2 5 D A C I N T E G R AT E D A M P L I F I E R
User Guide
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CAUTION
TO REDUCE THE RISK OF FIRE, REPLACE WITH THE
SAME TYPE AND RATING OF FUSE.
ATTENTION
UTILISER UN FUSIBLE DE RECHANGE MÊME TYPE.
Safety compliance
This product has been designed to meet the IEC 60065
international electrical safety standard.
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN
ATTENTION
RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
The lightning flash with an arrowhead symbol within an
CAUTION: To reduce the risk of electrical shock do not
remove cover (or back). No user serviceable parts inside.
Refer servicing to qualified service personnel.
WARNING:
do not expose this apparatus to rain or moisture.
CAUTION:
shock, match the wide blade of the plug to the wide slot
in the socket and insert the plug fully into the socket.
This product is designed and manufactured to meet strict
quality and safety standards. However, you should be aware
of the following installation and operation precautions.
equilateral triangle, is intended to alert the user to the
presence of uninsulated 'dangerous voltage' within the
product's enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the product.
To reduce the risk of fire or electrical shock,
In Canada and the USA, to prevent electric
1. Take heed of warnings & instructions
You should read all the safety and operating instructions
before operating this appliance. Retain this handbook
for future reference and adhere to all warnings in the
handbook or on the appliance.
2. Water and moisture
The presence of electricity near water can be dangerous.
Do not use the appliance near water – for example next to
a bathtub, washbowl, kitchen sink, in a wet basement or
near a swimming pool, etc.
3. Object or liquid entry
Take care that objects do not fall and liquids are not spilled
into the enclosure through any openings. Liquid-filled objects
such as vases should not be placed on the equipment.
4. Ventilation
Do not place the equipment on a bed, sofa, rug or similar
soft surface, or in an enclosed bookcase or cabinet, since
ventilation may be impeded. We recommend a minimum
distance of 50mm around the sides and top of the
appliance to provide adequate ventilation.
5. Heat
Locate the appliance away from naked flames or heat
producing equipment such as radiators, stoves or other
appliances (including other amplifiers) that produce heat.
6. Climate
The appliance has been designed for use in moderate
climates.
7. Racks and stands
Only use a rack or stand that is recommended for use with
audio equipment. If the equipment is on a portable rack it
should be moved with great care, to avoid overturning the
combination.
8. Cleaning
Unplug the unit from the mains supply before cleaning.
The case should normally only require a wipe with a soft,
damp, lint-free cloth. Do not use paint thinners or other
chemical solvents for cleaning.
We do not advise the use of furniture cleaning sprays or
polishes as they can cause indelible white marks if the unit
is subsequently wiped with a damp cloth.
9. Power sources
This appliance must be connected to a mains socket
outlet using the supplied power cord. To disconnect
this apparatus from power, you must disconnect the
power cord. Make sure the power cord is always easily
accessible.
Only connect the appliance to a power supply of the type
described in the operating instructions or as marked on
the appliance.
This is a Class 1 device and must be earthed.
The power switch is a single-pole switch. When the switch
is in the “Off” position, the appliance is not completely
disconnected from the main power.
10. Power-cord 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 and
plugs, and the point where they exit from the appliance.
11. Grounding
Ensure that the grounding means of the appliance is not
defeated.
12. Power lines
Locate any outdoor antenna/aerial away from power lines.
13. Non-use periods
If the unit has a stand-by function, a small amount of
current will continue to flow into the equipment in this
mode. Unplug the power cord of the appliance from the
outlet if left unused for a long period of time.
14. Abnormal smell
If an abnormal smell or smoke is detected from the
appliance, turn the power off immediately and unplug the
unit from the wall outlet. Contact your dealer immediately.
15. Servicing
You should not attempt to service the appliance beyond
that described in this handbook. All other servicing should
be referred to qualified service personnel.
16. Damage requiring service
The appliance should be serviced by qualified service
personnel when:
A. the power-supply cord or the plug has been damaged, or
B. objects have fallen, or liquid has spilled into the
appliance, or
C. the appliance has been exposed to rain, or
D. the appliance does not appear to operate normally or
exhibits a marked change in performance, or
E. the appliance has been dropped or the enclosure
damaged.
I25 DAC Integrated Amplifier User Guide2
Page 3
2.4G and 5G FCC Statements
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received,
including interference that may cause undesired
operation.
Cet appareil est conforme à la section 15 des
réglementations de la FCC. Le fonctionnement de
l’appareil est sujetaux deux conditions suivantes :
1. cet appareil ne doit pas provoquer d’interférences
néfastes, et
2. cet appareil doit tolérer les interférences reçues,
y compris celles qui risquent de provoquer un
fonctionnement indésirable.
Note
: This product has been tested and found to comply
with the limits for a Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This product generates, uses, and
can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause
harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If this product does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and
receiver.
• Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV
technician for help.
Please take attention that changes or modification
not expressly approved by the party responsible for
compliance could void the user’s authority to operate the
equipment.
This equipment should be installed and operated with a
minimum distance 20cm between the radiator and your
body.
Cet équipement doit être installé et utilisé à une distance
minimale de 20 cm entre le radiateur et votre corps.
This device complies with Industry Canada licence-exempt
RSS standard(s). Operation is subject to the following two
conditions:
1. this device may not cause interference, and
2. this device must accept any interference, including
interference that may cause undesired operation of the
device.
Le présent appareil est conforme aux CNR d’Industrie
Canada applicables aux appareils radioexempts de
licence. L’exploitation est autorisée aux deux conditions
suivantes :
1. l’appareil ne doit pas produire de brouillage, et
2. l’utilisateur de l’appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
Under Industry Canada regulations, this radio transmitter
may only operate using an antenna of a type and
maximum (or lesser) gain approved for the transmitter by
Industry Canada. To reduce potential radio interference
to other users, the antenna type and its gain should be so
chosen that the equivalent isotropically radiated power
(e.i.r.p.) is not more than that necessary for successful
communication.
Conformément à la réglementation d’Industrie Canada,
le présent émetteur radio peut fonctionner avec une
antenne d’un type et d’un gain maximal (ou inférieur)
approuvé pour l’émetteur par Industrie Canada. Dans le
but de réduire les risques de brouillage radioélectrique
à l’intention des autres utilisateurs, il faut choisir le type
d’antenne et son gain de sorte que la puissance isotrope
rayonnée équivalente (p.i.r.e.) ne dépasse pas l’intensité
nécessaire à l’établissement d’une communication
satisfaisante.
The CE symbol indicates that this Primare product
complies with the EMC (Electromagnetic Compatibility)
and LVD (Low Voltage Directive) standards of the
European Community.
The WEEE symbol indicates this Primare product complies
with the European Parliament and Council Directive
2002/96/EC concerning Waste Electrical and Electronic
Equipment (WEEE). This product must be appropriately
recycled or processed in accordance with these directives.
Consult your local waste disposal authority for guidance.
The RoHS symbol indicates that Primare products are
designed and manufactured to comply with the Restriction
of Hazardous Substances (RoHS) as stated in the European
Parliament and Council Directive 2002/95/EC.
Copyright and acknowledgments
Copyright © 2017-18 Primare AB.
All rights reserved.
Primare AB
Limstensgatan 7
21616 Limhamn
Sweden
http://www.primare.net
Issue: I25DAC/1
The information in this guide is believed to be correct as
of the date of publication. However, our policy is one of
continuous development and so the information is subject
to change without notice, and does not represent a
commitment on the part of Primare AB.
Primare is a trademark of Primare AB.
This guide was produced by
Human-Computer Interface Ltd.
http://www.interface.co.uk
I25 DAC Integrated Amplifier User Guide 3
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I25 DAC Integrated Amplifier User Guide4
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CONTENTS
Welcome! 6
Getting Started 7
1 Unpack the I25 7
2 Connect speakers 7
3 Connect inputs 7
4 Connect power 7
Back-panel connections 8
Using the remote control 9
Selecting I25 mode 9
Fitting the batteries 9
Using the I25 10
Front panel controls 10
Changing the volume 10
Selecting a source 10
Changing the display brightness 10
Technical specification 14
Speaker outputs 14
Analogue inputs 14
Analogue outputs 14
Digital inputs 14
Digital output 14
Performance 14
General 14
Additional information 15
Phase 15
Burn-in 15
RS232 and trigger 15
Using the I25 with a DD35 15
Error messages 15
Factory reset 15
Index 17
Connecting sources 11
Configuring the settings 12
Using the settings menus 12
INPUT SETTINGS 12
AUDIO SETTINGS 13
GENERAL SETTINGS 13
I25 DAC Integrated Amplifier User Guide 5
Page 6
WELCOME!
Congratulations on selecting your new
I25 DAC Integrated Amplifier
This user guide describes the features and explains how
to set up the amplifier for the best sound quality and ease
of operation in order to allow for the most enjoyable
reproduction of sound from all your sources.
For additional support and assistance please contact your
local authorized Primare dealer, or visit our website at
www.primare.net.
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I25 DAC Integrated Amplifier User Guide
Page 7
GETTING STARTED
1 Unpack the I25
Your I25 is supplied with:
This User Guide
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Mains cable
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IR cable
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Trigger cable
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C25 remote control with batteries
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AC Polarity Pen
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If any of these items are missing please contact your
supplier. We recommend you retain the packaging in
case you need to transport the unit at a later date.
Note that the I25 is supplied with a protective film on the
display glass. Remove the film for a clearer whiter display.
2 Connect speakers
The I25 is designed to be connected directly to a pair of
loudspeakers.
Connect the red wire from each speaker to the red
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terminal marked + and the black wire from each
speaker to the black terminal marked –.
3 Connect inputs
You can connect up to five analogue sources and up to six
digital sources to the inputs on the back panel.
Analogue inputs
Connect analogue sources, such as the Primare CD35
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CD player, to inputs A1 to A5 using high quality RCA
cables.
Digital inputs
Connect digital optical sources to the digital optical
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inputs D6 to D9 using optical cables.
Connect digital coax sources to the digital coax inputs
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D10 and D11 using digital RCA cables.
You can also connect a PC or Mac to the USB-B input to
use the I25 as an audio output device for your computer.
4 Connect power
Plug one end of the mains cable supplied with the
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I25 into the power connector on the back panel, and
connect the other end to a wall socket.
If this cable is not suitable for your power outlets please
contact your supplier for an alternative cable.
Note: See
the best sound from your I25.
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The standby indicator will light up on the front panel.
To switch on from standby
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The display shows:
Phase
, page 15, for information about getting
WARNING: Always disconnect the I25 from the
mains power before connecting or disconnecting
any cables.
Switch on the I25, using the switch on the back panel.
Press O on the front panel or remote control.
PRIMARE
The terminals can accept speaker cables terminated with
spade terminals, banana plugs, or bare wires.
To connect bare wires unscrew the terminal, pass the bare
wire through the hole in the terminal bolt, and clamp the wire
in place by screwing the terminal back down hand tight.
Analogue outputs
The I25 provides fixed-level and variable-level analogue
outputs on the LINE and PRE outputs on RCA connectors,
to allow you to connect to active speakers or an analogue
recorder.
Digital output
The I25 also provides a coax digital output on an RCA
connector.
I25 DAC Integrated Amplifier User Guide
7
Page 8
BACK-PANEL CONNECTIONS
A2A1 A3
A4 A5 LINE PRE
Slot for
network module
Right
speaker
Analogue
inputs
Analogue
outputs
IR
in/out
TriggerRS232 Left
speaker
Power and
fuse
On/off
Optical
digital inputs
Coax
digital inputs
Digital
output
USB-B
input
The following diagram explains the function of each of the
connectors on the back panel:
8
I25 DAC Integrated Amplifier User Guide
Page 9
Switch between on and standby
Press and hold to switch all
Primare products to standby
Step between dim levels
Navigate right in settings menus or
select next input
Increase the volume,
or navigate up in settings menus
Reduce the volume,
or navigate down in settings menus
In the settings menus navigates back
or cancels editing a setting
Press briefly to
mute the sound
Select item in settings menus
Navigate left in settings menus or
select previous input
Select remote mode.
Press twice to select
device on second line
Decrease the volume
Increase the volume
Display the front panel settings menus
Indicators light when
pressing a button
Top: AMP, PRE, or CD mode
Bottom: AV, SC, or AUX mode
Select an input or track number
Press and hold to enter the first digit
of a two-digit input or track number,
then press the second digit
USING THE REMOTE CONTROL
Selecting I25 mode
The remote control can operate any associated Primare
products you have in your system.
To make the remote control operate the I25
Press the AMP AV button once.
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To make the remote control operate another product
Press the AMP AV, CD SC, or PRE AUX button as
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appropriate.
Press once to select the product on the top line of the
button, or twice to select the product on the second line.
The indicators at the top of the remote control light when
pressing a button to show which mode the remote control
is in.
Fitting the batteries
Before using the remote control you need to insert the two
AAA cells supplied with the C25.
Open the cover on the back of the remote control by
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pressing the back cover gently near the centre of the
remote control, and sliding it towards the edge of the
remote control.
Insert the two batteries, with the polarity as indicated
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on the bottom of the battery compartment.
Replace the cover and push until it clips into place.
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Note: Replace only with 1.5V alkaline cells type
AAA or equivalent.
When disposing of old batteries please be considerate to
the environment.
I25 DAC Integrated Amplifier User Guide
9
Page 10
USING THE I25
Front panel controls
Standby O
Switches the I25 to standby, or switches it on from
standby.
A and V
Step between inputs.
Settings menus
Pressing A and V simultaneously displays the settings
menus or exits from the menus.
In the settings menus:
Pressing A or V steps between the settings.
Holding down A selects a setting or saves an edited
setting.
Holding down V navigates back or cancels editing a
setting.
Volume
Changes the volume.
Changing the volume
Selecting a source
The I25 provides a choice of 12 inputs. Initially these are
labelled as shown in the following table, but you can give
them your own aliases to suit the sources in your system;
see
ALIAS
, page 14.
Label Description
A1–A5 Analogue on RCA connectors.
D6–D9 Digital optical on TOS connectors.
D10, D11 Digital coax on RCA connectors.
PC/MAC (12) Digital on USB-B connector.
To select a source
Press the A or V buttons until the source is indicated
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on the front panel display; for example:
A1
Alternatively, press the < or > buttons on the remote
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control to step between sources, or press one of the
buttons 1 to 12 on the remote control to select the
corresponding source directly.
Changing the display brightness
To change the front panel display brightness
Press the DIM button on the remote control to step
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through the three levels of illumination and blank.
If you turn the display off it will be restored briefly when
you operate any control.
The display automatically dims after ten minutes; you can
adjust this delay in the settings menus; see
SETTINGS
, page 13.
GENERAL
The I25 allows you to vary the volume from 0 (silence) to
99 (maximum).
To change the volume
Rotate the VOLUME control on the front panel, or press
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the + or – buttons or the A or V buttons on the remote
control.
The current volume setting is shown on the front panel; for
example:
VOL 28
I25 DAC Integrated Amplifier User Guide10
Page 11
CONNECTING SOURCES
Loudspeakers
I25
Digital optical source
USB-A to USB-B cable
Digital optical cable
Digital coax source
Digital coax cable
PC/Mac
Phono RCA cable
Analogue source
To play music from a source
Connect the source via a suitable cable:
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Analogue Phono RCA cable
Digital optical source Digital optical cable
Digital source Digital coax cable
Select the source from the front panel, or using the
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remote control.
I25 DAC Integrated Amplifier User Guide 11
To use the I25 as a PC/Mac sound output device
Connect the Mac or PC to the I25 via a USB-A to
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USB-B cable.
PC
Windows 7, 8, 8.1, or 10 (32/64-bit) is required. You
need to install the Primare xmos audio driver, available on
primare.net.
Macintosh
OSX 10.4 or later is recommended. No driver is required.
Connect the computer’s USB port to the USB B input on
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the I25 using a USB A to USB B cable.
The I25 will then appear as a sound output device called
Primare USB Audio DAC
or Sound system preferences panel (Macintosh).
Select the PC/MAC source on the I25.
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Select the Primare USB Audio DAC as the sound output
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device in the Mac Sound system preferences panel or
the PC Sound control panel.
in the Sound control panel (PC)
Page 12
CONFIGURING THE SETTINGS
Using the settings menus
You can view and change the I25 settings from the front
panel or remote control.
To display the settings menu
Simultaneously press the A and V buttons on the front
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panel, or press the MENU button on the remote control.
The settings menu is displayed:
I25 SETTINGS 20
INPUT
AUDIO
GENERAL
To step between settings
Press the A or V buttons on the front panel or remote
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control.
The current setting is shown highlighted.
To change a setting
Hold down the A button on the front panel, or press
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the SELECT button on the remote control.
The current value is shown highlighted.
Press the A or V buttons on the front panel or remote
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control to change the value of the setting.
As you change it the new value is shown in the menu.
Hold down the A button on the front panel, or press
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the SELECT button on the remote control, to save the
value you have set.
To navigate back or cancel editing a setting
Hold down the V button on the front panel, or press
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the button on the remote control.
To exit from the settings menu
Simultaneously press the A and V buttons on the front
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panel, or press the MENU button on the remote control.
INPUT SETTINGS
The INPUT SETTINGS menu allows you to customise the
inputs to suit the sources in your system:
A1 SETTINGS 20
INPUT A1
ALIAS A1
STATUS ENABLED
INPUT
Initially the INPUT SETTINGS shows the settings for the
currently selected input. Alternatively the INPUT option
allows you to step between all the inputs. The subsequent
options will change according to the input.
ALIAS
Allows you to give the source a name; eg RADIO.
Highlight the ALIAS item then hold down the A button
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on the front panel, or press the SELECT button on the
remote control.
The RENAME INPUT menu is displayed:
RENAME INPUT 20
A
Press the A or V buttons on the front panel, or the < or
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> buttons on the remote control, to select the first letter.
Hold down the A button on the front panel, or press
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the SELECT button on the remote control, to select it.
After adding each character you have the options:
ADD NEW CHARACTER
CONFIRM ‘A’
CLEAR ALIAS
where CONFIRM shows the alias you have entered so far.
Select ADD NEW CHARACTER to add the remaining
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letters, up to a maximum of six characters.
STATUS
Choose between ENABLED (default) or DISABLED to
specify whether the input is enabled.
AUTO SENSE
Choose between: SELECT to automatically select an input
containing an audio signal if the I25 is on; WAKE+SELECT
to automatically wake up the I25 from standby, if
necessary, and select an input containing an audio signal;
and OFF (default) to disable automatic switching.
VOLUME
Choose between VARIABLE (default) or FIXED to specify
whether the input should have variable or fixed gain.
FIXED is 0dB gain, equivalent to volume setting 66, and
will overrule MAXIMUM VOLUME in AUDIO SETTINGS.
Selecting FIXED will show a loud-volume warning. Select
YES
to proceed or NO to cancel the fixed gain setting.
Fixed gain functions as an SSP (Surround Sound Passthrough) allowing the I25 to be used as an amplifier in a
multi-channel system setup
INPUT GAIN
Choose between: -30dB to -1dB, 0dB (default), or +1dB to
+30dB to set the gain for the selected input.
If the gain is set too high on an input clipping may occur,
and the message:
DECREASE INPUT GAIN
will be displayed. In this case reduce the gain until the
warning message is not displayed.
Select CONFIRM when you have entered the alias you
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want.
I25 DAC Integrated Amplifier User Guide12
Page 13
AUDIO SETTINGS
The AUDIO SETTINGS menu allows you to customise the
balance and start-up volume, and the maximum and mute
volume.
AUDIO SETTINGS 20
BALANCE 00LR00
STARTUP VOLUME 30
MAXIMUM VOLUME 99
BALANCE
Allows you to adjust the balance between 00LR-9 (far left),
00LR00 (centred, default) and -9LR00 (far right).
STARTUP VOLUME
Sets the general startup volume to between 0 and 60. The
default is 20.
MAXIMUM VOLUME
Sets the maximum volume limit between 0 and 99. The
default is 99.
MUTE VOLUME
Sets the volume when unit is muted. You can choose
between 0 (default) and 30.
GENERAL SETTINGS
The GENERAL SETTINGS menu allows you to configure the
general operation of the I25:
GENERAL SETTINGS 20
FRONT PANEL UNLOCKED
AUTO-DIM AFTER 10MIN
LED BRIGHTNESS
SHOW INPUTS
Choose between ALL (default), to show all inputs, or WITH
SIGNAL
, to show only inputs that have a signal.
FRONT PANEL
Choose LOCKED to lock the front panel buttons and
knobs, or UNLOCKED (default) to use them.
To unlock the front panel buttons use the remote control to
select this menu, or remove power from the I25 for a few
seconds.
AUTO-DIM
Allows you to choose the delay for dimming the display
after no user interaction, between: AFTER 1MIN, AFTER
5MIN
, AFTER 10MIN (default), or OFF.
AUTO-STANDBY
standby if there is no user interaction or audio from the
current source for a specified delay: AFTER 10MIN, AFTER
15MIN
, AFTER 20MIN (default), or OFF.
automatically switches the I25 to
FACTORY RESET
Resets the I25 to the factory default settings.
You are prompted to confirm. Select YES to proceed or
NO
to cancel.
FIRMWARE VERSIONS
Displays the FIRMWARE VERSIONS menu to allow you to
view the versions of firmware installed.
If the current volume is lower than the specified MUTE
VOLUME
, the volume will be set to 0 when pressing mute.
DIGITAL OUTPUT
Allows you to choose the sample rate for analogue inputs
on the digital output as 96kHz (default) or 48kHz. For
digital inputs the output format is the same as the input.
LED BRIGHTNESS
Displays the LED BRIGHTNESS menu to allow you to set the
display brightness to between 1 and 5 for each display
dimming level:
DIM HIGH (default 3), DIM MID (default 2), DIM LOW
(default 1), or DIM OFF (default 1).
STANDBY SETTINGS
Displays the STANDBY SETTINGS menu to allow you to
specify the standby settings.
STANDBY MODE can be set to ECO to reduce the standby
consumption to less than 0.5W, but only allows the I25 to
wake from the analogue and digital inputs, or NORMAL
which also allows the I25 to wake from the PC/MAC
input.
I25 DAC Integrated Amplifier User Guide 13
Page 14
TECHNICAL SPECIFICATION
Speaker outputs
Power
2 x 100W into 8Ω, 2 x 200W into 4Ω
Analogue inputs
5 x RCA, 15kΩ impedance
Analogue outputs
Preamplifier output
1 x RCA, 100Ω impedance
Line output
1 x RCA, 100Ω impedance
Digital inputs
4 x Optical/TOSLINK 192kHz/24 bit
2 x RCA 192kHz/24 bit
1 x USB-A up to 192kHz/24 bit; up to DSD128
(5.6MHz)
Performance
Gain
Preamplifier output: 16.5dB
Line output: 0dB
Speaker output: 42.5dB
Analogue frequency response
20Hz – 20kHz: -0.2dB
Distortion
THD + N: < 0.05%, 20Hz – 20kHz, 10W at 8Ω
Signal to noise
>100dB (AES17 filter)
General
Control
C25 system remote control
RS232
IR in/out
Trigger out
Power Consumption
Standby (ECO): <0.5W
Standby (NORMAL): <5.5W
Operating: <32W
Dimensions
430 x 420 x 106 mm (w x d x h) with knobs and
connectors
430 x 382 x 106 mm (w x d x h) without knobs and
connectors
Weight
11 kg
Colour
Black or titanium
1 x USB-B up to 768kHz/32 bit; up to DSD256
(11.2MHz)
Digital output
1 x RCA
Analogue input = selectable between 48 or 96kHz
Digital input = native output
I25 DAC Integrated Amplifier User Guide14
Page 15
Live
ADDITIONAL INFORMATION
These instructions help you get the best possible sound
from your I25.
Phase
The phase of the AC supply can make a significant
difference to the sound.
Use the Polarity Pen supplied with the I25 to verify which
pin is live on your AC power cable.
Ensure that the live pin of the AC power cable is
connected to the left-hand pin of the power connector,
viewed from the back panel:
Burn-in
Your Primare will start to sound best after an initial burn-in
of approximately 24 hours.
You will notice a further smaller improvement in sound
quality for at least another 3 days’ playing.
Using the I25 with a DD35
Your I25 is an ideal companion to the Primare DD35 CD
Transport. For best results link the two products together as
follows using the two cables supplied with the I25:
To connect the trigger cable
The Trigger cable ensures that the DD35 switches on, or
to standby, when you operate the O button on the front
panel of the I25.
Connect the Trigger cable from the I25 TRIG OUT to
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the DD35 TRIG IN.
Error messages
The following error messages on the front panel display
indicate an error condition:
DECREASE INPUT GAIN
Clipping has occurred on an input. Decrease the input
gain; see
DC ERROR
Try the following
l
If this solves the problem, check the speaker wiring.
INPUT GAIN
Power off I25 and disconnect the speaker connections.
, page 12.
Factory reset
Press and hold the O standby button on the front panel to
display the main firmware version number.
Press and hold the O standby button on the front panel for
10 seconds to perform a factory reset of the I25.
You can also do a factory reset from the Prisma app,
or from the GENERAL SETTINGS menu; see
SETTINGS
, page 13.
GENERAL
RS232 and trigger
If the problem persists
Power off I25 and disconnect all input connections.
The RS232 input allows you to connect the I25 to a
controller system. Use a twisted (null modem) cable. For
more information contact Primare at info@primare.net or
visit www.primare.net.
The Trigger output allows the I25 to switch on other
devices, such as a DD35.
I25 DAC Integrated Amplifier User Guide 15
l
If this solves the problem, there is a DC offset on one of
the inputs.
If the problem persists
Contact your dealer for service arrangements.
l
Page 16
I25 DAC Integrated Amplifier User Guide16
Page 17
INDEX
A
Alias (settings menus) 12
Analogue inputs and outputs 8
Audio settings menu 13
Auto-dim (settings menus) 13
Auto sense (settings menus) 12
B
Back panel 8
Balance (settings menus) 13
C
Clipping 12
Coax inputs 8
D
Digital inputs and output 8
Digital output (settings menus) 13
Display brightness, changing 10
G
General settings menu 13
I
Input (settings menus) 12
Input gain (settings menus) 12
Inputs, connecting 7
Input settings menu 12
IR input 8
L
LED brightness (settings menus) 13
M
Maximum volume (settings menus) 13
Menus
Audio settings 13
General settings 13
Input settings 12
P
PC/Mac sound output device 11
Phase 15
Power, connecting 7
R
Remote control 9
Fitting batteries 9
RS232 input 8, 15
S
Settings menus 12
Show inputs (settings menus) 12, 13
Sources, selecting 10
Speakers, connecting 7
Standby settings (settings menus) 13
Startup volume (settings menus) 13
Status (settings menus) 12
E
Error messages 15
Mute volume (settings menus) 13
N
Network module 8
T
Technical specification 14
Trigger outputs 8
F
Factory reset 15
Factory reset (settings menus) 13
Firmware (settings menus) 13
Front panel (settings menus) 13
Front panel controls 10
I25 DAC Integrated Amplifier User Guide 17
O
Optical inputs 8
U
Unbalanced inputs and outputs 8
V
Volume (settings menus) 12
Volume, changing 10
Page 18
L I MS T EN S GAT A N 7 ,
T H E S O U N D A N D V I S I O N O F S C A N D I N A V I A S I N C E 1 9 8 6
2 1 6 1 6 L IM H A M N , S WE D E N
More information at primare.net
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