PROPHON P4350DSP User manual

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01 Sid 1
P4350DSP, manual/quick-guide, V1,0, 2023-08-01
P4350DSP
4 - CHANNEL CLASS-D AMPLIFIER WITH DSP AND PFC
4 x 350W / 8 ohm,
4 x 550W / 4 ohm,
2 x 1160W / 8 ohm bridged
1 x 1160W / 8 ohm + 2 x 350W / 8 ohm,
1 x 1100W / 8 ohm + 2 x 550W / 4 ohm
2 x 900W / 100V bridged
2023-08-01
QUICKGUIDE / MANUAL 1,0

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 2
P4350DSP, manual/quick-guide, V1,0, 2023-08-01
Warning!
- Caution: to avoid electric shock hazard, do not remove cover plate, open, or disassembly in any way,
there is no repairable parts inside, contact qualied trained professional for repair and service!
- To avoid re, damage to product, and/or electrical shock,
this equipment cannot be exposed to rain, water or humid environments
- This equipment is intended for professional and commercial use only, not for home use.
- This equipment is capable of (through loudspeakers) producing high SPL (Sound Pressure Levels) that can be damaging
for ears and hearing, due to high levels or long time exposure.
There are di󰀨erent standards and regulations in each country, make sure to respect and follow local laws regarding SPL.
To be safe, avoid prolonged exposure to volumes exceeding 90 dB, short bursts of high SPL can also be damaging to
ears and result in hearing loss and / or tinnitus, please keep volume down.
- Keep away from water, rain, moisture, humid environments.
- Read and understand the manual before installing or using.
- Pay attention to all warnings!
- Use and install the equipment only in the intended manner.
- This equipment may not be tempered with or in any other way changed to be used in a way it was not intended to
by the manufacturer
- Clean and wipe only with dry cloth, not with wet cloth.
- The highest ambient temepature is 50oC (122o F)
- Do not restrict or in any way obscure or block the ventillation intake in the front, or outlet in the back
- This equipment uses ventillation cooling systems with fans, when installing make sure there is enough free intake air in
front of the amplier to cool the equipment, and make sure there is enough space for the hot outlet air to dissapate
behind the amplier.
- Do not install heat generating equipment above, below, in front of or at the back of this amplier.
- This equipment must be earthed, Do not cut earth on the power in for omiting ground loop, if you experience ground loop
noise it is most probably due to equipment connected in the same power line without ground-connection, as a laptop
computer, change and re-arrange the power arcitecture, if this does not work install a DI-box or line box pre-input.
- Protect all connectors in the back, especially the mains Power input connector
- This equipment needs to be serviced regularly for prolonging the life-span and to make sure the equipment is safe,
make sure the mains power is disconnected before service, only qualied personnell may service this equipment.
- If the amplier in any way act suspiciusly disconnect the power input powercon connector.
- This product is not equipped with an All-Pole power switch, to completely disconnect from the AC power
the AC connector must be unplugged from the AC socket,
- Always disconnect the power connector from mains power when not in use.
- Make sure the mains voltage and frequency match the values specied before connecting the amplier to the mains.
- Rack mount equipment must have reliable grounding.
- Only use accessories and attachements shipped with the product, or buy original accessories from authorized supplier.
- For personnel safety we recommend that all electrical products are connected to a RCCB
(Residual current circuit breaker) and RCD automatic fuses
- During lightning storms and / or during time when the amplier is not used, disconnect the power-in cord connector
- This device must be maintained and serviced by qualied personell only, if the amplier do not work properly or work
faulty only qualied personell may repair.
- If the product is dropped, or in any other way misshandled it must be veried by qualied service-personnel before use.
- Never place objects containing liquid close to or on top of this device.
- When mounting in a rack, never mount more than four ampliers, due to heat dissapation issues.
- Avoid switching the on/o󰀨 switch in quick succession, it can cause the equipment to have a shorter life-span.
- Only replace fuses with same type and with same value, only qualied personnell may change fuses.
- When disposing of this equipment, make sure you comply with the laws within your country,
- Sort and seperate plastic and cardoard for a better enviromnet.
- Bridged use only 2 x 8 ohm, not to be bridged in 4 ohm or 2 ohm load
- When using in 100V, make sure the total power of the 100V speakers do not exceed 80% of the specied power output,
20% of the total power is reserved for impedance in the cables for headroom, total power to be used in 100V is 2 x 928W
- Wide mains input 90-260VAC, 50-60Hz, with PFC (Power Factor Correction)

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01 Sid 3
Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 2
P4350DSP, manual/quick-guide, V1,0, 2023-08-01 P4350DSP, manual/quick-guide, V1,0, 2023-08-01
FEATURES
• 4 channel Class-D amplier with 92% e󰀩ciency for high power density
• 4 x 350W 2 8 ohm, 4 x 550W @ 4 ohm, 2 x 1160W 8 ohm or 100V.
• Wide mains input 90-264VAC, 50-60HZ
• PFC, (active) Power Factor Correction, for reliable and stabile power
• R-SMPS, Switched mode Power Supply
• Powerful DSP built in with EQ, delay, limiter, crossover, matrix signal routing
• LLC Soft start
• multi-layered protection systems
with Soft start, DC short circuit, overheat, overload, clipping/distortion limits
• High-end A/D, D/A converters 96kHz, 24-bit
• With unique peak-limiter and ripple cancellation
• designed for tour, portable use and installation
• 2 x 16 character, backlit LCD display
• Front to back heat-controled ventilation, with removable grilles for service and cleaning of
accumulated dust in the lter
• 4 x balanced XLR signal input
• 8 ohm, 4 ohm and 100V use.
• Can be used as 2, 3 and 4 channel amplier with total freedom in signal routing
DSP FEATURES
• All parameters can be set either using the display and buttons on the front panel of the amplier,
or via the GUI software
• 96kHz samplig rate, 24-bit A/D, D/A conversion
• 2x16 characteristics backlit LCD-display
• Total freedom in signal routing in to out, with individual gain structure on all in to out
• Gain adjustable range +15dB to -40dB, in steps of 0,1dB on all input and all output
• All parameters with copy and paste function for fst and easy operation
• All parameters can be linked with other channels individually
• Input gan sensitivity 26dB, 29dB, 32dB, 35dB
• Phase reverse option on all inputs individually
• 16 Biquads on all input and all outputs, with:
PEQ, Low-shelf, High-shelf, Low, pass, High-pass, band-pass, band-stop, all-pass
0,5-15Q, 20Hz-20kHz, -15 to +15 dB gain.
• Bypass and at on all EQ´s for quick testing and re-setting of channels
• Delay shown in mS and cm. from 0 to 20mS (686cm) on all input and all output channels
• High-pass and Low-pass lter crossover on all outputs individually, from o󰀨, to 20Hz to 20kHz
With Linkwitz-Riley, Bessel, Butterworth types of slopes, 6-48dB/oct.
• Limiter with Threshold, Attack, Hold and Release, seperate and individually on all output channels
• Store up to 32 user presets in the memory
• Save and load presets in your computer
• Connect to the GUI software via USB with automatic sensing for easy operation and use.

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 4
P4350DSP, manual/quick-guide, V1,0, 2023-08-01
1) Power switch on/o󰀨
2) Main menu interface access (Press and hold for accessing menu, press short for return function
press short for muting ch1 when not in the menu mode
3) Press short for select function when in the menu mode, when not in the menu mode press short for muting ch2
4) Press short for select function when in the menu mode, when not in the menu mode press short for muting ch3
5) When not in the menu mode, press short for muting ch4, press and hold for lock function
(default password is 000000, if you forget your password, universal password is 190906)
when in menu mode, press short for conrm function,
6) USB online interface for communication with PC-computer using the GUI software
7) 2 x Fan inlet, with removable grille for service and for removing accumulated dust in the dust lters
1) Power chord inlet 90-260VAC, 50-60Hz
2) Fan outlet front to back, automatic heat-controled
3) Balanced XLR input signal channel 1 to 4, PIN1-signal ground, PIN2-Signal positive, PIN3-signal negative
4) Mode select switch (always turn o󰀨 amplier before setting switches)
- ST: Stereo mode, each channel operate individually
- BRG: Bridge mode, 2-channel mode (only to be used in 8 ohm load, and 100V, not 4 ohm or 2 ohm load)
- PAP: Parallel mode, uses same signal source on both channels
- Sensitivity switch, 0,775V, 1V, 32dB
5) Speakon output, Speakon 1, 2, 3, 4 corresponds to channel 1, 2, 3, 4 output, Connected on 1+/1-
Speakon 1 also uses 1+/1- for channel 1, and 2+/2- for channel 2,
Speakon 3 also uses 1+/1- for channel 3, and 2+/2- for channel 4
5
DSP arcitecture schematics

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01 Sid 5
Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 4
P4350DSP, manual/quick-guide, V1,0, 2023-08-01 P4350DSP, manual/quick-guide, V1,0, 2023-08-01
Use balanced XLR male input connector
Wiring:
1) earth/ground/shield
2) hot
3) cold
Single channel use, minimum load of 4 ohm, not designed for 2 ohm load, amplier will brake if used in 2 ohm load!
Two speakers with 8 ohm impedance connected in parallel can be connected per channel, resulting in 4 ohm impedance
Speakon output connectors, channel 1 to 4 uses 1+/1-
Speakon output CH1+2 uses channel 1 on pin 1+/1-, and channel 2 on pin 2+/2-
Speakon output CH3+4 uses channel 3 on pin 1+/1-, and channel 4 on pin 2+/2-
Bridge mode channel 1 uses speakon CH1+2 with pin 1+/2-, rst set the select switch (4) CH1/CH2 to BRG
Bridge mode channel 2 uses speakon CH3+4 with pin 1+/2-, rst set the select switch (4) CH3/CH4 to BRG
Bridged minimum load is 8 ohm, cannot be used bridged in 4 ohm or 2 ohm load per channel, amplier will brake!
Always turn of the power to the amplier before setting any switches (4)
When connecting to the GUI software for programming with
PC, rst select ”Device” in the upper left corner, and select
DSP4CH to congure the software for P4350DSP, also in
the series are avaliable DANTE versions and a 2-channel
version (P2350DSP)

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 6
P4350DSP, manual/quick-guide, V1,0, 2023-08-01
Main window
Schematics of all functions, all functions can be clicked on for quick-access, each parameter can be copied and pasted for
fast programming, each parameter can be linked.
Routing window
you can either click any of the pre-programmed matrix schemes to the left and then handle gain structure, or you can design
your own routing and gain structure as you see t, with total freedom in routing and gain structure between input and output
channels

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01 Sid 7
Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 6
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Gain window
Input and output gain, with -40 to +15dB on each channel, mute on/o󰀨 and phase reverse
Input window
Input channel 1-4 all have the same features, individually programable, with 16 Biquads on each channel with PEQ, LP-lter,
HP-lter, Lo-shelf, Hi-shelf, BandPass and AllPass, each biquad with gain +/-15dB, Q value 0,5-15 and frequency responce
20Hz to 20kHz, each input also features delay 0-20mS, mute on/o󰀨, Bypass EQ, atten EQ (reset EQ) and channel input
gain, using the mouse you can drag each EQ point holding the left mouse button moving it both over the frequency range
left and right, and gain up and down, and set Q-value holding the right mous button and dragging the mouse to left for wider
Q-value, and right for more narrow Q-value. You can also mark a value and use the scroll wheel on the mouse to change the

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 8
P4350DSP, manual/quick-guide, V1,0, 2023-08-01
Output window
Output channel 1-4 all have the same features, individually programable, with 16 Biquads on each channel with PEQ, LP-lter,
HP-lter, Lo-shelf, Hi-shelf, BandPass and AllPass, each biquad with gain +/-15dB, Q value 0,5-15 and frequency responce
20Hz to 20kHz, each output also features delay 0-20mS, mute on/o󰀨, Bypass EQ, atten EQ (reset EQ) and channel output
gain, using the mouse you can drag each EQ point holding the left mouse button moving it both over the frequency range
left and right, and gain up and down, and set Q-value holding the right mous button and dragging the mouse to left for wider
Q-value, and right for more narrow Q-value. You can also mark a value and use the scroll wheel on the mouse to change the
parameter up or down. Output channels also features the crossover section, with HP-lter and LP-lter 20Hz to 20kHz, with
6-48dB/slope, Linkwitz-Riley, Bessel and Butterworth types.
Limiter window
All four output channels features seperate individual programmable Limiter, with Threashol, Attack, Hold and Release, the
limiter can also be Bypassed (not recommended)

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01 Sid 9
Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 8
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Store window
In the upper left corner is the store and recall icons, this will take
you to the memory of the presets in the amplier, where there are
32 presets, when storing presets, select the preset position you
want to store to, and edit the name, then click on the STORE button
in the right lower corner.
Recall window
To recall a preset, click on the preset you want to recall, and
press recall
Load/Save window
In the upper left corner is also the Load/Save icons, this is used for saving and loading everything
in the amplier, save stores a le in your computer, Load recalls a le from you computer.

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 10
P4350DSP, manual/quick-guide, V1,0, 2023-08-01
SPECIFICATIONS P4350DSP
8Ω 4 x 350W
4Ω 4 x 550W
2Ω N/A
Bridge 8Ω 2 x 1160W
Bridge 4Ω N/A
Bridge 100V 2 x 1160W (recommended max load 80% = 928W)
keep 20% in headroom for impedance in cables
Input Impedance Balanced >20KΩ / Unbalance >10KΩ
T.H.D <0,05%
Frequency responce 20Hz - 20kHz
S/N (A-weighted) >104dB
Damping factor > 600
Slew rate > 20V/us
Sensitivity (8Ω) 0,775V / 1V / 32dB switchable
Air duct Front to back ventilationi, heat-controled fans
with removable front-covers for cleaning ventilation lter
Protection Soft start, DC short circuit, Overheat, Overload, Cliping, distortion
DSP 96kHz samplig rate, 24-bit A/D and D/A conversion
LCD-display Backlit 2x16 characters, LCD-display
Max input level +17dBu (5,5V)
Routing Total freedom in signal routing between input and output
with individual gain between input and output channels
Gain +15 to -40dB, in steps of 0,1dB, and mute
Phase Al output channels can have phase reversal selected (for use in cardioid setups)
Delay 0-20mS on all input and all output channels
EQ Each input and each output channels features 16 EQ points
with PEQ, Lo-shelf, Hi-shelf, Lo-Pass, Hi-Pass, Band-stop, Band-Pass, All-Pass
Q-value from 0,5 to 15, Frequency from 20Hz to 20kHz, Gain +/-15dB
Limiter All output channels with individual limiter: Threshold, Attack, Hold time, Release
DANTE™ DSP4350DSP can be ordered with DANTE™

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01 Sid 11
Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 10
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P4350DSP - SERVICE PROTOCOL, MUST BE SENT WITH AMPLIFIER FOR SERVICE.
RME NUMBER (AQUIRED FROM PLACE OF SERVICE)
DATE OF PURCHASE
INVOICE NUMBER
SERIAL NUMBER
DESCRIPTION OF FAULT
PROBABLE REASON OF DAMAGE / FAULT
CONTACTS PERSON
TELEPHONE NUMBER TO CONTACTS PERSON
CELL NUMBER TO CONTACTS PERSON
COMPANY NAME
COMPANY VAT NUMBER
COMPANY TELEPHONE NUMBER
COMPANY ADRESS
COMPANY EMAIL
CONTACTS PERSON EMAIL
BELOW TABLES ONLY FOR SERVICE PERSONNEL
SERVICE BY
SERVICE START DATE
NOTES BY SERVICE PERSON
FAULT/DAMAGE FOUND BY SERVICE PERSON
PARTS USED FOR SERVICE
MEASURES TAKEN
TOTAL TIME TAKEN FOR SERVICE

Prophon Sound System and the Prophon logo, registered trade marks of Prophon Audio & Teknik AB, Stockholm, Sweden
Linjalvägen 10C, 187 66, Täby, [phone], [email protected], [email protected], www.prophon.com
Manual quick-guide Prophon P4350DSP - 4-channel system amplier with DSP, V1,0, 2023-08-01
Sid 12
P4350DSP, manual/quick-guide, V1,0, 2023-08-01
PROPHON AUDIO & TEKNIK AB
Linjalvägen 10C, 187 66 TÄBY
STOCKHOLM, SWEDEN
Tel: [phone]
Mail: [email protected]
Web: www.prophon.com