PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker User Manual

June 10, 2024
PRO DG SYSTEMS

SYSTEMS IT 112 PA 2-Way Passive Speaker
User Manual

PRO DG SYSTEMS IT 112 PA 2-Way Passive SpeakerAn updated.pdf version of this manual is always available at:www.prodgsystems.com

Safety Indications

Please read it before use the system and keep for later use
PRO DG SYSTEMS GIVES YOU THANKS FOR ACQUIRE THIS PROFESSIONAL SOUND SYSTEM FULLY DESIGNED, ASSEMBLED AND OPTIMIZED IN SPAIN, WE WISH THAT YOU ENJOY WITH ITS HIGH QUALITY AND PERFORMANCE.

  • This system has been designed, fabricated and optimized by Pro DG Systems in perfect working order. To maintain this condition and ensure the right operation, the user must respect the following indications and advices of this manual.
    THE FIABILITY, SAFETY AND EFFICIENCY OF THE SYSTEM ARE ONLY AND EXCLUSIVELY GUARANTEED BY PRO DG SYSTEMS IF:

  • Assembly, manipulation, re-adjustment and modifications or repairs are carried out by Pro DG Systems.

  • The electrical installation complies with the requirements of IEC (ANSI).

  • The system is used according to the use indications.

WARNING:

  • If protectors are opened or sections of chassis are removed, except where this can be done manually, live parts can become exposed.
  • Any adjustment, manipulation, optimization or reparation of the system must be done only and exclusively by Pro DG Systems. PRO DG SYSTEMS IS NOT RESPONSIBLE OF ANY DAMAGE OF THE SYSTEM CAUSED BY A MANIPULATION, ADJUSTMENT, OPTIMIZATION OR REPARATION REALIZED BY  NO-AUTHORIZED PERSONAL BY PRO DG SYSTEMS
  • High loudspeaker levels can cause hearing damage, it must avoid the direct contact with loudspeakers operating at high levels, Dtherwise it must use hearing protectors.

MAIN CONNECTION:

  • The system is designed for continuous operation
  • The set operating voltage must match the local mains supply voltage.
  • The unit has to be connected to the main via the supplied power unit or power cable.
  • Power unit: never use a damaged connection lead. Any type of damage must be fixed.
  • Avoid connection to the mains supply in distributor boxes together with several other power consumers.
  • The plug socket for the power supply must be positioned near the unit and must be easily accessible.

PLACE OF SITUATION:

  • The system should stand only on a clean and totally horizontal surface.
  • The system must not be exposed to any type of vibration during its operation.
  • Avoid the contact with the water or wet surfaces. Do not place objects containing liquid on the system.
  • Procure that the system has sufficient ventilation and do not block or cover any ventilation opening. Obstruct the ventilation may cause overheating in the system.
  • Avoid direct exposure to the sun, as well as proximity to sources of heat or radiation.
  • If the system undergoes an extreme change in temperature may affect its operation, before starting the system hope it has reached room temperature.

ACCESSORIES:

  • Do not place the system on a unsteady base that can be cause of damage to people or to the system, use it only with the trolley, rack, tripod or base recommended or supplied by Pro DG Systems following the installation indications. The system’s combination must be moved very carefully. The application of an excessive use of force and uneven floors can cause the combination of system and stand to tip over.
  • Additional equipment: don’t use additional equipment wich has not be recommended by Pro DG Systems. The use of not recommended equipment can cause accidents and damage to the system.
  • To protect the system during bad weather or when left unattended for prolonged periods, the main plug should be disconnected. This prevents the system being damaged by lightning and power surges in the AC mains supply.

IT IS RECOMMENDED TO THE USER READ THESE INSTRUCTIONS BEFORE USING THE SYSTEM AND SAVE FOR LATER USE.  PRO DG SYSTEMS IS NOT RESPONSIBLE OF AN INADEQUATE USE OF THE SYSTEM BY NO-AUTHORIZED PERSONNEL WITHOUT ENOUGH KNOWLEDGE OF USE.
THE USE OF THE PRO DG SYSTEMS PRODUCTS IS INDICATED FOR AUTHORIZED PROFESSIONALS THAT MUST TO HAVE ENOUGH KNOWLEDGE OF THE SYSTEM USE AND ALWAYS RESPECTING THE INDICATIONS SHOWED BELOW.
DESIGNED, ASSEMBLED AND OPTIMIZED IN SPAIN

Introduction

This manual has been designed to help all the users of the system IT 112 PA of Pro DG Systems to its correct use as well as for the understanding of the benefits and versatility of the same. IT 112 PA is a passive multipurpose system totally designed, assembled and optimized in Spain.
IT 112 PA
Totally designed, manufactured and optimized in Spain. 
PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker -
assembledDescription
IT 112 PA is a 2-way multipurpose passive system equipped with one (1) speaker of 12″ in a tuned enclosure. The HF section has one (1) compression driver of 1/4”, coupled to one (1) rotating diffuser of 80×50. IT 112 PA incorporates multifunction switch to work with its own crossover or biamplied. It is perfect to be used as P.A, frontfill and sidefill with or without subwoofer, as portable system or permanent installation. It can be used individually and horizontally stacked or flown with two or more units together as X-Array system of constant curvature, or vertically adapted thanks to its special flight hardware to work as a Line Array system as well.

Technical specifications

Power Handling: 2400 W peak / 1200 W program / 600 W RMS (EIA 426A Standard).
Nominal Impendence: 8 Ohm
Average Sensitivity: 100 dB / 2.83V / 1m (average of 150 – 16000Hz wideband).
Calculated Maximum SPL: 1m 130 dB continuous / 133 dB program / 136 dB peak.
Frequency Range: +/- 3dB between 40 Hz – 18 KHz.
Nominal Directivity: 80×50 rotating diffuser.
Low / Mid Frequency Driver: One (1) Pro DG Systems speaker of 12”, 8 Ohm, 500

W.
Mid Frequency Cut-off:| 70 Hz Linkwitz-riley 24 filter – 1200 Hz Linkwitz- riley 24 filter.
High Frequency Driver:| One (1) Pro DG Systems driver of 1/4”, 8 Ohm, 100 W.
High Frequency Cut-off:| 1200 Hz Linkwitz-riley 24 filter – 18000 Hz Linkwitz- riley 24 filter.
Rigging points:| 12 x M10
Connectors:| 2 NL4MP speakon connectors.
Controls:| Multifunction switch to work with its own crossover or biamplied
Acoustic Enclosure:| CNC fabrication in 15mm birch plywood.
Finish:| Special textured black paint finish.
Grille / Hardware:| 2 mm metal grille with 0.5 mm acoustic foam + 2 handles with aluminum handgrip.
Dimensions:| (HxWxD);  690x390x380mm (27,16”x15,35”x14,96”).
Weight:| 27,2 Kg (59,96 lbs) net / 28,7 Kg (63,27 lbs) with packaging.

Architectural specifications

PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker - Architectural
specifications

Inside IT 112 PA
IT 112 PA counts with one Beyma speaker of 12”, 500 W (RMS). Specially designed under our own parameters for the best performance of the system.

KEY FEATURES

High power handling: 1000 W program power 3” copper wire voice coil.
High sensitivity: 97 dB (1W / 1m)
FEA optimized ceramic magnetic circuit
Designed with MMSS technology for high control, linearity and low harmonic distortion
Waterproof cone treatment on both sides of the cone Xmax ± 6,3 mm / Xdamage ± 30 mm
Low harmonic distortion and linear responsePRO DG SYSTEMS IT 112 PA 2-Way
Passive Speaker - KEY FEATURES

Specially designed under our own parameters for the best performance of the system.

PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker - ECHNICAL
SPECIFICATION

Nominal diameter 300 mm (12 in)
Rated Impedance 8 Ω
Minimum impedance 6,5 Ω
Power capacity 500 W (RMS)
Program power 1000 W
Sensitivity 97 dB 1W / 1m @ ZN
Frequency range 45 – 5.000 Hz
Recom. Enclosure vol. 30 / 100 l 1,06 / 3,53 ft3
Voice coil diameter 77 mm (3 in)
Bl factor 18 N / A
Moving mass 0,062 kg
Voice coil length 16 mm
Air gap height 8 mm
Xdamage (peak to peak) 30 mm

**THIELE – SMALL PARAMETERS***

Resonant frequency, fs D.C. 42 Hz
Voice coil resistance, Re 5,8 Ω
Mechanical Quality Factor, Qms 5,6
Electrical Quality Factor, Qes 0,30
Total Quality Factor, Qts 0,28
Equivalent Air Volume to Cms, Vas 91,1 l
Mechanical Compliance, Cms 229 μm / N
Mechanical Resistance, Rms 2,9 kg / s
Efficiency, η0 2,2 %
Effective Surface Area, Sd 0,053 m2
Maximum Displacement, Xmax ** 6,3 mm
Displacement Volume, Vd 334 cm3
Voice Coil Inductance, Le @ 1 kHz 1 mH

MOUNTING INFORMATION

Overall diameter 312 mm (12,28 in)
Bolt circle diameter  294,5 mm (11,59 in)

Baffle cutout diameter:
– Front mount| 278 mm (10,94 in)
Depth| 131 mm (5,16 in)
Net weight| 5,5 kg (12,12 lb)

  • T-S parameters are measured after an exercise period using a preconditioning power test. The measurements are carried out with a velocity-current laser transducer and will reflect the long term parameters (once the loudspeaker has been working for a short period of time).
    The Xmax is calculated as (Lvc – Hag)/2 + (Hag/3,5), where Lvc is the voice coil length and Hag is the air gap height.
    FREE AIR IMPEDANCE CURVE
    PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker - IMPEDANCE
CURVE FREQUENCY RESPONSE AND DISTORTION
    PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker - IMPEDANCE CURVE
1
    Note: On axis frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber, 1W @ 1m
    Inside IT 112 PA
    IT 112 PA also incorporates a constant rotatable directivity horn specifically designed to work with one Pro DG Systems compression driver of 100 W RMS. Its constant  directivity characteristics ensure the ability to cover 80º wide horizontally and 50º wide vertically (depending on its position), at virtually any frequency within its operational range.
    KEY FEATURES**

    • Designed to work with one (1) Pro  DG  Systems  compression driver of 100 W RMS.
    • Uniform response,  on and off – axis with  a  neutral frequency reproduction.
    • Coverage angles of 80º in the horizontal plane and 50º in the vertical plane (depending on its position).
    • Precise directivity control in the pass band.
    • Square and compact design , providing versatile  mounting  options  with  cast aluminum construction.

TECHNICAL SPECIFICATIONS

Throat diameter 36 mm. 1.4 in.
Horizontal beamwidth 80º (+16º, -32º) (-6 dB, 1 – 20 kHz)
Vertical beamwidth 50º (+29º , -14º)(-6 dB, 1.6 – 20 kHz)
Directivity factor (Q) 12.4 (average 0.63 – 16 kHz)
Directivity index (DI) 10.5 dB (+3.5 dB, -3.2 dB)
Cutoff frequency 800 Hz
Size (WxHxD) 235x235x120mm (9.25×9.25×4.72in)
Net weight 1.2 kg (2.64 lb)
Construction  Cast aluminum.

Inside IT 112 PA
IT 112 PA is also composed by one Pro DG Systems compression driver of 100 W RMS coupled to a wave guide. It is specially designed under our own parameters for the best performance of the system.
KEY FEATURES (ONE UNIT)

  • High power handling: 100 W RMS.
  • Lightweight PM-4 polymer diaphragm.
  • Excellent high frequency response with low distortion.
  • Excellent sensitivity: 111 dB, 2,83 V @ 1m.
  • 200 W program power above 1,2 kHz.

TECHNICAL SPECIFICATIONS

Throat diameter 36 mm (1.4 in)
Rated impedance 8 ohms
Minimum impedance 5.2 ohms @ 3.5 kHz
D.C. Resistance 4.3 ohms
Power capacity 00 W RMS above 1.2 kHz
Program power 200 W above 1.2 kHz
Sensitivity * 111 dB (2.83 V @ 1m) coupled to IT-A 212 P.A. horn
Frequency range 0.7 – 19 kHz
Recommended crossover 1.2 kHz or higher (12 dB/oct. min.)
Voice coil diameter 44.4 mm (1.75 in)
Magnetic assembly weight 1.86 kg (4.1 lb)
Flux density 1.65 T
BL factor 6,6 N/A

MOUNTING INFORMATION

Overall diameter 120 mm (4.72 in)
Depth 65 mm (2.56 in)
Mounting Four M5 threaded holes, 90º apart on 101,6 mm (4”) diameter circle
Net weight (1 unit) 2.04 kg (4.5 lb)

CONSTRUCTION MATERIALS

Diaphragm PM-4 polymer
Voice coil Ultra lightweight edge wound aluminum voice coil
Voice coil former Aluminum cover
Magnet Ferrite

Note: * Sensitivity was measured at 1m distance on axis with 1w input, averaged in the range 1-7 KHz
DIMENSION DRAWINGS
PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker - DIMENSION
DRAWINGS FREQUENCY RESPONSE AND DISTORTION
PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker -
DISTORTION

Note: On axis frequency response measured coupled to IT 112 P.A. horn in anechoic chamber 2,83 v @ 1m.
FREE AIR IMPEDANCE CURVE PRO DG SYSTEMS IT 112 PA 2-Way Passive
Speaker - MPEDANCE CURVE

Note: Electrical impedance measured coupled to IT 112 P.A. horn

Hardware for installation

Tripod (Optional)
PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker -
Hardware

Material:| Aluminum with black powder coating. Five steps fixation (17cm each step), it includes safety bolt.
---|---
Height:| 125cm to 195cm / 49.21” to 76.77”
Max load:|  32 Kg / 70.55 lbs.
Tube diameter:| 35mm  –  1.38”
Folded Dimensions:| 1040x120x120mm  40.94×4.72×4.72 in

Interaction with subwoofers (Optional)
PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker -
subwoofers Extensible bar with thread for IT 112 PA.

Material: Reinforced steel.
Colour: Black.
Tube diameter: 35mm  –  1.38”
Height: 840mm – 1120mm / 33.07” – 44.09”

Distance rod with hand crank and »Ring Lock« system from König & Meyer for IT 112 PA. (Optional)
PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker - Ring
Lock

Material: Reinforced steel.
Colour: Black.
Tube end(s):  »Ring Lock« diameter 35 to 37 mm, threaded bolt M20.
Height: 920mm – 1520mm / 36.22” – 59.84”
Height adjustment: Hand crank with push-button system  and  locking  screw.
Rod combination: 2-piece folding design.
Features: Patented expanding mandrel system »Ring Lock«; vibra- tion – free

connection due to moveable plastic splints ; push – button  system  and  hand crank  avoid  uncontrolled reverse motion; locking screw provides additional safety; M20 bolt for precise and vertical fit.
– Weight:|    3.86 kg  /  8.51 lbs.

“T” support for two (2) units IT 112 PA (Optional)

– Material: Reinforced steel.
– Mounting bolt: Diameter 35x120mm / 1.38×4.72 in
– Width: Adjustable from 310 to 490mm.12.20 – 19.29 in.
– Max Load: 2 x 32 Kg / 2 x 70.55 lbs.

Eyebolt for wall or ceiling installation (Optional)
PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker - ceiling
installation

Wall mount bracket with steel mounting pole and adjustable angulation to support up to 32 Kg (70.55 lbs) and with a length of 300mm (11.81 in) (Optional)PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker - subwoofers
3

Flight Hardware for IT 112 P.A.
Flight Bumper to work in cluster mode.
Flight Bumper to work as Line Array system.

Flight Hardware and Bumpers to raise up to 3 units IT 112 PA horizontally adapted in cluster mode, or vertically adapted to work as Line Array system are available (Optional). Four pinlocks and one shackle are included.

Flight Bumper to raise up to 3 units IT 112 P.A. horizontally adapted in cluster mode. Flight Bumper to raise up to 3 units IT 112 P.A. vertically adapted to work as Line Array system. PRO DG SYSTEMS IT 112 PA 2-Way Passive
Speaker - app

In Pro DG Systems we know that making high quality speakers is an important part of our job. Then, offering the warranty of using speakers properly is another part which is also fundamental in our job. Good tools make the difference for an optimal use of the system.
With Ease Focus V2 prediction software for IT 112 PA we can design different configurations between systems and simulate their behavior in different places and circumstances like obtain information of: coverage, frequency, SPL and general system behavior in an easy and comfortable way. It is easy to handle and we offer training courses for Pro DG Systems users. Click here to redirect to the download link of EASE Focus V2.5.10. Click here to download GLL file for IT 112 PA. For more information, consult our technical service at: sat@prodgsystems.com

Accesories.

PRO DG SYSTEMS IT 112 PA 2-Way Passive Speaker -
cablingComplete  cabling  for  the system  is  available  and ready to use.

Advance progasm System
www.prodgsystems.com

References

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