PROCELLA AUDIO DA08-DSP User manual

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
DA08-DSP Power Amplier
User Manual V1.0
https://procella.audio
contac[email protected]

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
Technical and Safety Notices
Please read the following important technical,
safety and environmental notices before
installing and using your amplier.
Technical Notices
Your Procella power amplier has been designed to provide a
high level of performance when properly installed, congured and
operated. In order to ensure this performance and maintain the
product warranty, please note and follow these instructions.
1. These ampliers are Class-I products and must be installed
with a mains cable with a ground connnection.
2. These ampliers should always be installed by competent and
qualied personnel. Amplier damage or failure caused by
installation or operational errors may invalidate the warranty
or guarantees of performance.These ampliers are not suitable
for use in locations where they may be accessible to minors.
3. Do not install the amplier in locations where they may be
accessible to children.
4. These ampliers should only be used within professionally
installed and congured audio systems utilizing ancillary
components of commensurate quality. Any damage to, or
unsatisfactory performance from, these ampliers caused by
inadequate or failed input or output ancillary equipment may
invalidate support, warranty or guarantees of performance.
5. These ampliers are intended to be installed and operated
indoor in a controlled environment within an ambient
temperature range of 0°C to 40°C. These ampliers are
not intended for use above 2000 meters above sea level.
Ampliers installed or operated in environments outside
these limits may invalidate support, warranty or guarantees of
performance.
Safety and Environmental Notices
Note: The intent of the lightning ash with
arrowhead symbol in a triangle is to alert the user
to the presence of uninsulated “dangerous” voltage
within the product’s enclosure that may be of
sucient magnitude to constitute a risk of electric
shock to humans.
Note: The intent of the exclamation point within
an equilateral triangle is to alert the user to the
presence of important safety, and operating and
maintenance instructions in this manual.
WARNING! TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE.
Ambient Temperature Note: If this equipment is operated in
a conned or multiple rack installation, the internal ambient
operating temperature may exceed the external ambient
temperature. It is important to ensure in these circumstances that
the published maximum operating temperature for the equipment
is not exceeded.
Reduced Air Flow: Ensure that rack or other closed installation
does not restrict the cooling airow required for safe and reliable
operation of the equipment.

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
Technical and Safety Notices
Important Safety Instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Do not submerge the equipment in water or liquids.
7. Do not use any aerosol spray, cleaner, disinfectant or fumigant
on, near or into the equipment.
8. Clean only with a dry cloth.
9. Do not block any ventilation opening. Install in accordance
with the manufacturer’s instructions.
10. Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including ampliers) that
produce heat.
11. To reduce the risk of electrical shock, the power cord shall be
connected to a mains socket outlet with a protective earthing
connection.
12. Do not defeat the safety purpose of the polarized or
grounding type plug.
13. Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
14. Do not unplug the unit by pulling on the cord, use the plug.
15. Only use attachments/accessories specied by the
manufacturer.
16. Unplug this apparatus during lightning storms or when
unused for long periods of time.
17. Refer all servicing to qualied service personnel. Servicing is
required when the apparatus has been damaged in any way,
such as damage to the power supply cord or plug; liquid has
been spilled or objects have fallen into the apparatus; the
apparatus has been exposed to rain or moisture; or does not
operate normally.
18. The appliance coupler, or the AC Mains plug, is the AC mains
disconnect device and shall remain readily accessible after
installation.
19. Adhere to all applicable, local codes.
20. Consult a your dealer or Procella Audio when any doubt or
questions arise regarding a physical equipment installation.
Environmental Statement
This product complies with international directives,
including but not limited to the Restriction of
Hazardous Substances (RoHS) in electrical and
electronic equipment, the Registration, Evaluation,
Authorization and restriction of Chemicals (REACH)
and the disposal of Waste Electrical and Electronic
Equipment (WEEE). Consult your local waste disposal authority for
guidance on how properly to recycle or dispose of this product.

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
Overview
1. Introduction
The Procella DA08-DSP power amplier has been designed to
provide congurable, consistent and reliable high performance
audio power amplication for residential and commercial
applications. Please read this manual fully before installing and
using the amplier. If you have any questions regarding amplier
conguration, installation or operation please contact us.
Following this introduction, the manual is divided into sections
covering the following topics:
Overview
Carton Contents
Installation
Conguration
Connections
Operation
Specications
2. Amplier Overview
The Procella Audio DA08-DSP amplier is a 1U format power
amplier that can drive conventional low impedance 2Ω to 8Ω
loudspeakers. The amplier supports constant resistance and
constant voltage output, provides built-in DSP, has built-in switch
capability, supports UDP protocol, and oers amplier monitoring
through a network cable. The DA08-DSP adopts the multi loop
regulation technology independently developed by the company
and has excellent technical performance and stability, with greater
than 90% eciency, due to its proprietary power amplication
technology. The switching power supply adopts active Power Factor
Correction and soft switching technology, and is optimized for
audio amplication.
Bridge pairs of channels (1+2 and/or 3+4) to increase power by a
factor of four.
The DA08- DSP output channel count and power output is as
follow:
Output power 4x 800W at 8 ohms
4x 1.600W at 4 ohms
4x 2.900W at 2 ohms
Output power (bridged) 2x 3.200W at 8 ohms
2x 5.800W at 4 ohms
2.1 Connections
Input connection to the DA08-DSP is through balanced XLR
connectors. Output connection is through heavy duty binding
posts. An RJ45 Ethernet network connection is also provided.
The DA08-DSP amplier has a mains power switch and is
operational as soon as mains power is connected and the switch is
switched to the On position. No standby function is available, and
remote and/ or switching On/O remotely.
2.2 Software
The Procella DSP controller software is available in the download
section of our website: https://procella.audio/downloads
2.3 Dimensions
The DA08-DSP amplier is primarily intended for installation in an
equipment rack. It is fan-cooled and must be installed such that
ventilation apertures are not obstructed. The menu and preset
selection is done on the front of the amplier by using the knob
and the display for information.
WxHxD 483 x 45 x 370 mm (1U)
19” x 1.7” x 14.6”
2.4 Firmware
This manual describes the features, functions and user interface of
the DA08-DSP amplier running:
Firmware Version 02116
Updates to the rmware will be announced on our website.

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
Maintenance
After operating for some time, if the airow and cooling become
less eective, please turn o the amplier. Remove and clean the
dust lter and clean this lter.
2.5 DSP functions
• The input delay of each channel is 30ms, the output delay is
20ms, and the step is 0.01ms
• Audio input level matching + - 18db
• 4x4 audio route mixing, mixing ratio - 80dB ~ + 18db
• 8-segment input parametric EQ, 5-segment output parametric
EQ, high-low pass lter
• Support FIR lters of order 512 and below
• Volume, mute, phase adjustment, mode selection
• Output average, peak voltage limiter
• Parameter saving / retrieval between machines
• Speaker parameter conguration
• User / Debug / Factory permission setting
3. Carton Contents
The DA08-DSP amplier is shipped in a cardboard carton
containing the amplier unit, a mains cable appropriate for the
sales territory and a document pack.
The full contents are listed below:
• Procella DA08-DSP amplier
• Mains power cable
• Adhesive rubber feet x 4
• Document pack
4. Installation
The installation and equipment rack should be congured to
provide appropriate ventilation airow space around the front and
rear of the amplier as illustrated Diagram 1b. A ventilation airow
space of at least 25 mm (1 inch) should be maintained along at
least one side of the amplier at all times. Ventilation apertures
are located on the rear panel of the amplier and must not be
obstructed. It is important to retain at least 80 mm (3.1 inch) free
space for airow behind the amplier rear panel.
The amplier works in a 0°C~40 environment. Airow goes from
the front of the amplier (ventilation holes) through the rear panel
to ensure eective heat dissipation. Please ensure that the air can
ow from the front to rear panels.
Note:
If the internal temperature exceeds 85 degrees C, the output
voltage will be reduced, to avoid excessive temperature rise. If the
temperature continues to rise to 90 degrees C, the power amplier
will shut down. Once the temperature has dropped to a safe
temperature, the amplier will restart automatically.
Overview
Diagram 1b

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
Balanced analog input
Unbalanced analog input
Operating instructions
Two wire stereo or mono speakers to the output sockets.
Two wire Bridge speakers to the Output sockets:
4. Inputs / Outputs
Use only shielded cables. We strongly recommend balanced
connections for the lowest noise oor.
Note:
If a single-ended connection must be used, the shortest
possible cable is preferred to minimize potential noise
Before changing any connections, please switch the amplier o.
4.2 Operation
1. Cooling Vents: Front-to-rear forced airow through foam dust
lter.
2. LCD Display Screen
3. Control Button: turn for previous and next, push for enter.
4. Power Switch: ON / OFF. It is ON to press “I” down.
5. Power cord: Conguration 3×1.5mm2 cord according to power.
6. Fans: Provide front-to-back forced airow for cooling.
7. Output sockets.
8. Ethernet connection
9. XLR inputs
4.1 Attention
In order to achieve the best performance and the highest reliability,
please pay attention to the following:
1. Before use, you need to congure the amplier inputs and
outputs.
2. Be careful when connecting, selecting the input signal and
controlling the output level. This can avoid unnecessary issues.
3. Do not connect the ground wire of the input and output cable
together. This will form a ground loop and cause oscillations
4. Without authorization, modifying the circuit will be dangerous,
and the agents will not provide any services.
5. If the SIG LED ashes yellow continuously, shut the amplier
down.
6. Do not use the amplier under the condition of lower than
the nominal load. Too low load may cause amplier output
protection and premature clipping, damage the speaker.
7. When the amplier is turned on, the output port may be fatal.
Important note: our company is not responsible for the damage
caused by excessive use.

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
4.3 Menu structure of screen display
Operating instructions

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
• Turn the power on and the LCD screen will display the logo.
• After a few seconds the main screen will be automatically displayed.
Opening screen
• The volume/mute function of this amplier can be controlled
• Display the volume / output level / output clipping / output compression of each channel.
• Display the machine operating temperature, network status and current selected preset.
Main screen
The following functions can be controlled through the main screen.
Press the rotary encoder to enter the Operation Menu:
1. Preset
Current:V21 (=example) Current is the active preset
Presets by Procella Audio
total of 14 preset modes available
01. example
02. etc.
Back
2. Volume
Volume The volume of each output can be controlled individuatly
Mute The mute function is available for each output
Noise Gate The noise gate switch of each output can be controlled individually
Back
Menu
Operating instructions

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
3. Amp Mode
Bridge Bridge two output channels (1+2 or/and 3+4) Low-Z
Hi-Z 70V
Hi-Z 100V
Back
4. Settings
Standby Normal/Standby
Contrast 30-100 Screen contrast 30-100 / default 75
Backlight: Always/Saving/O Saving = close after 2 minutes
IP Mode Auto-DHCP/User-set DHCP or maual settings
Amp-IP 192.168.1.10 Can be changed in manual mode
Factory Reset
5. Monitor
V Output voltage of each channel
I Output current of each channel
Temp Operating temperature of each power module
State Whether all channels are protected
6. Info
Model Power amplier model name
Run time Total working time
Communication Communication interface type
Sn Factory serial numberd
FW Firmware version
Back
Operating instructions

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
Model DA08-DSP
Output Power
(THD+ N=1%, 1kHz continue sine wave,
all channel driving)
4 x 800W at 8 ohms
4x 1.600W at 4 ohms
Output Power @ 4/ 8Ω
(Bridged)
2x 3.200W at 8 ohms
2x 5.800W at 4 ohms
Max. Output current 45A peak
Dimensions (W xH X D)
483 x 45 x 370 mm
(19 x 1.7 x 14.6 in)
Weight 9.0kg (19,8 lbs)
DSP for all channels
Level
Parametric eq
Delay,
matrix
limiter
FIR lter
Signal To Noise-Ratio >105 dB (default gain, A-weighted, 20 Hz-20 kHz, 8 Ω)
THD+N (typical) <0.05% (20 Hz - 20 kHz, 8 Ω load 3 dB below 10% rated power)
Frequency Response 20Hz-20kHz (+0/-0.5dB (8Ω load, 3dB below rated power)
Protection Circuits
Short circuit protection,
DC protection
Limiter
Under voltage protection
Over temperature protection
Overload protection
Power Supply Global Power Supply with APFC (Active Power Factor Correction)
Operating Voltage/Frequency Universal Mains, 90V-260V, 50Hz-60Hz
Power Consumption
All channels driven
idle 60W, 1/8 full power 695W

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11
PROCELLA AUDIO LIMITED WARRANTY
• Procella Audio components are warranted to be free
from original manufacturing defects as follows:
• For all amplier components, for a period of two
years from date of delivery to the original purchaser
from an authorized dealer.
• The Procella Audio obligation under this warranty
is limited to repairing or replacing any component
which it shall nd defective in material or
workmanship under normal non- commercial
conditions of use. This warranty shall not apply
to products which have been abused, modied,
disassembled or repaired by anyone other than
Procella Audio or one of its appointed service
centers.
• Products to be repaired under this warranty must
be returned to the factory or designated service
center with all transportation and insurance charges
prepaid.
• All warranties of whatever character are void and
unenforceable if the component or any part thereof
is not purchased from an authorized dealer.
• This warranty is in lieu of all other warranties,
expressed or implied, and of all other obligations
or liabilities on our part, and Procella Audio neither
assumes nor authorizes any other person to assume
for it, any other liability in connection with the sale,
repair, or return of any product.
• We encourage all Procella owners to register their
components. While this is not required to receive
warranty benets, it will allow you to receive
warranty coverage without providing proof of
purchase, and it will enable us to keep you advised
of Procella product information, new products, and
updates.
• Please contact your local Procella Audio dealer or
Procella Audio directly should you have any further
questions. We love to hear from our customers,
especially with feedback on our loudspeaker
products.
• Email: [email protected]udio
• Website: https://.procella.audio

• Specications subject to change. | ©2022 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2022/11