PROPHON PMA4240 User manual

PMA4240
Zone Matrix Mixer Amplier, 4 x 240W
INSTRUCTION MANUAL V1,1

PMA4240
WARNINGS
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 50o C (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, use the ground-lift function.
- 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-in 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.
- 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)
- During lightning storms and / or during time when the amplier is not used, disconnect the power-in cord.
- 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.
- When using in 100V or 70V mode only 80% of the actual power may be used, the extra 20% power is reserved for
headroom and loss of impedance due to cable wiring.
(so when using in 100V/70V mode the amplier can only be loaded with 4 x 192W)

PMA4240
FUNCTIONS, FEATURES AND SUGGESTED SETUPS
The PROPHON PMA4240 was designed as a commercial audio product, for public adresss purpose.
With over 30 years of experience in public adress commercial audio installations, the PMA4240 was
developed after extensive research to satisfy a demand in a multi-purpose machine that can manage
most small to medium sized installation in resturants, schools, stores, work-out fascilities, bars and lounges,
conference centres etc.
It can be used as a multi-zone mixer amplier, with the same or di󰀨erent sound sources playing in one, several or all
output zones. With ve seperate input channels the PMA4240 can host external CD-players, tuners, I-pads, I-phones and
Android devices, computer, Bluetoth unit etc. and up to 3 microphones (both condenser and dynamic)
The PMA4240 hosts an abundance of features such as:
- 4 zones out with 4 x 240W amplier (4-16 ohm, 70V, 100V)
- All 4 zone output features an additional signal line output for connecting external ampliers.
- 5 input channels with seperate input gain on the back panel for adjusting the input signal gain structure
2 x stereo RCA, 3 x XLR/TELE combo connector with mick/line select switch and phantom switch
- MP3 player with SD and USB input
- Each input channel features gain, bass, treble, mute and output adress
(1 - 4 output, where one, several or all output channels can be adressed)
- One priority input for overriding other input channels (equal to EMC input)
- RS232 seriell control port for third party system communication
- Monitor output (1W/8ohm) for listening in on each output channel, (selectable 1-4)
- RJ45 connector for using the 4-zone remote table-goseneck microphone PTM412
- Tel. input for telephone integration
- Several levels of priority, 1) MIC1, 2) Tel. 3) Remote Mic
If ”priority” is short circuited, then the priority order is: 1) Remote mic 2) Tel. 3) MIC1
The built-in 4 channel ampliers features both low impedance 4-16 ohm output, and high impedance constant voltage
output for 70V or 100V lines, only one (8ohm/70V/100V) can be used for each channel, but the four channels do not need
to use the same output stage, one channel can use 4-16 ohm speakers, one can use 70V speaker line, and one can
use 100V speaker line. when using in 70V and 100V mode, only 80% of the power may be used, (4 x 192W) since there
needs to be a 20% headroom for greater load due to long cable installations.
Setup suggestions
Work-out facility
The PMA4240 is the perfect choice for running a sound system in a work out fascilities, handling environment sound,
locker-room sound and café, with seperate volume controls for each zone, and with the possibility to play the same
source in all zones, or di󰀨erent sources in each zone.
School
In a school, each output zone can handle one seperate oor, for adressable zones,
where the mic can be used for announcements, for larger fascilities just add external ampliers to expand the system
Restaurant
for background music, with seperate volume control in all zones, use two zones for restaurant, one zone for outdoor
lounge and one zone for closet, toilets and restrooms.
Announcements can be made to all zones from the PTM412 microphone,
Store
Mainly for medium sized to large stores (for smaller stores with only one zone we suggest our mixer amplier PMA240
with 1x240W) with 4 x 240W a medium sized store can easily be covered, with the possibility to have di󰀨erent music in
di󰀨erent areas (like in a grocery store, where you want to stream sounds recorded by the ocean where you sell sh and
seafood, sound recorded on a farm where you sell meat and dairy, and maybe laid-back background music in the rest of
the store. Or maybe you run a clothing store, where you want to have one music style in the tting rooms, and one music
style in the rest of the store, with di󰀨erent zones where the music is played on di󰀨erent volumes depending on where in
the store you are. with the announcement mic you can announce to all zones.

PMA4240
FUNCTIONS OF FRONT-PANEL AND BACK-PANEL
1) Mute button indicator, tuner/MP3 9) Power on indicator
2) Output channel selector tuner/MP3 10) Input 1-5 channel treble control
3) Monitor level indicator 11) Input 1-5 channel bass control
4) Monitor volume control 12 Volume control of channel 1-5 input
5) 1-4 zone output level indicator 13) MP3 player with USB and SD slot
6) 1-4 zone output monitor select 14) Mute input channels 1-5
7) 1-4 zone output volume control
8) ON/OFF power switch
Functions of front panel
Functions of back panel
1) AC power input socket 10) Line/phantom/mic select, input 1-3
2) Tel. dipswitch and volume control 11) Vent. outlet
3) Channel 5 line signal input and gain control 12 Amplier output 1-4, COM = neutral (-)
4) Channel 4 line signal input and gain control 13) Signal output 1-4 balanced/unbalanced
5) Channel 3 line/mic signal input and gain control 14) Radio antenna input
6) Channel 2 line/mic signal input and gain control 15) Tel. input signal
7) Channel 1 line/mic signal input and gain control 16) Priority short circuit
8) RJ485 remote zone mick input (PTM412) 17) Monitor output (1W amplier 8 ohm)
9) RS232 port for third party integration 18) Ground lift

PMA4240
INPUT CHANNEL FUNCTIONS AND FEATURES, PRIORITY FUNCTIONS
Channel 1 - 5 line signal Input functions
1) Bass, for adjusting the bass boost @ 100Hz
2) Treble, for adjusting the treble boost @ 10kHz
3) Volume adjustment on input signal
4) Mute channel
5) Select distribution of signal to output 1 - 4
Channel 1 - 4 amplier output functions
6) Volume control of output channel
7) Select button for adressing to monitor listening
8) Level status indicators on channel output
Short Circuit for
changing priority order
There are several levels of priority
1) MIC1
2) Tel.
3) Remote mic in
To change the order of priority,
short circuit the ”PRIORITY” terminals
1) Remote mic
2) Tel.
3 MIC1
PRIORITY (OVERRIDE) FEATURES
The combo XLR/TELE input connector o󰀨ers three di󰀨erent input
choices, selected with a select switch, the gain is used for
adjusting and balancing the gain structure of the input equipment.
”LINE”
For using as audio signal line input with CD-players, Tuners,
MP3-players, Computer, phones and other audio equipment
”PHANTON”
For using condenser microphones, feeding 48V powersupply.
”MIC”
For using standard dynamic microphones
CHANNEL 1-3 INPUT FEATURES

PMA4240
WIRING OF SPEAKERS, 70V / 100V / 8W, AND LINE OUTPUT
Signal line output Amplied output
100V constant voltage line,
max 192W load/channel!
Example
1) 19 speakers with 10W,
2) 9 speakers with 20W,
3) 6 speakers with 30W
Output impedance is
41W total
+ (positive)
- (negative)
Signal line output Amplied output
8W8W
4-16W amplied output
240W max power on each
amplier zone out
+ (positive)
- (negative)
Signal line output Amplied output
70V constant voltage line,
max 192W load/channel!
Example
1) 19 speakers with 10W,
2) 9 speakers with 20W,
3) 6 speakers with 30W
Output impedance is
20W total
+ (positive)
- (negative)
Connection guide
Only use one of the output stages on each output
channels, 4-16W or 70V or 100V, it is not possible to
use several outputs at the same time on the same channel
COM refers to negative (-) on the speaker
4W refers to positive (+) on low impedance speakers
70V refers to positive (+) on 70V line speakers
100V refers to positive (+) on 100V line speakers
Do not connect 70V speakers on the 100V output
Do not connect 8 ohm speakers on 70V or 100V output
Do not connect 100V speakers on the 4-16 ohm output
Do not connect 70V speakers on the 4-16 ohm output
Signal Line out
Signal line output can be used to connect external ampli-
er, for more powerful systems, or for connecting more
speakers to the system, each Line out corresponds to the
zone output volume on that channel.
70V / 100V connection
It is possible to connect 100V speakers on the 70V line for half e󰀨ect to be able to use double the amount of speakers on the
same amplier, with half the e󰀨ect on each speaker. (DO NOT CONNECT 70V SPEAKERS ON 100V LINE!)
example: if you use 30 pcs. of 10W, 100V speakers, it will add up to 300W, overloading the 192W amplier when using on the
100V line out, but if you connect the 30 pcs. of 100V / 10W speakers on the 70V line output, each speaker will only ”use” 5W,
instead of 10W, thus enabling for more speakers to be used, since 30 speakers using 5W each is 150W
100V line on 100W amplier
with 3 psc. of 100V speakers with
30W tap each = 90W consumption
3 x 100V speakers with 30W tap each
70V line on 100W amplier
with 6 psc. of 100V speakers with
30W tap each = 90W consumption
6 x 100V speakers with 30W tap each

PMA4240
ZONE ANNOUNCEMENT MIC PTM412
The PTM412 zone announcement mic
Connected via the RJ485 connector, the PTM412 is an announcement microphone that can
adress one, several or all four output zones, with a chime, and a ”talk” button.
Furthermore at the back of the control panel bass, treble and gain can be set to adjust the
frequency responce and SPL.
The microphone is a gooseneck condenser type, with a 5-pole connector, the control panel is
perfect for placing on desks, tables, or any other at surface for easy access.
PTM412

PMA4240
BLOCK DIAGRAM

PMA4240
SPECIFICATIONS
MODEL PMA4240
MAX POWER OUTPUT 4-16 ohm LOAD 4 x 240W
MAX POWER OUTPUT 70V/100V LOAD 4 x 192W
MONITOR OUTPUT 1W/8W
INPUT SENSITIVITY & IMPEDANCE CH1-3: MIC +/- 2.5mV/600W
Phantom: +/- 2.5mV
LINE: ~175mV/10kW balanced input
CH5-6: 350mV/10kWbalanced input
TEL: 350mV/10kW
REMOTE MIC: +-/387mV/10kW
EQ adjustments BASS: +/-10dB@100Hz
TREBLE: +/-10dB@10kHz
SNR >65dB
LINE 1-4 OUTPUT LEVEL 1V/600W (balanced output)
MP3 Support MP3 format (max 32GB capacity)
SD FILE SYSTEM FAT16, FAT32, does not support folders
THD <1%
POWER CONSUMPTION 1500W
VOLTAGE 230V / 50Hz
DIMENSIONS H132 x W484 x D440
NET WEIGHT 22kg.
SHIPPING WEIGHT 24kg.