Inter-m PA-120 Manual de usuario

PA-120

Integrated mixer amplifier

∴SUMMARY

∴OVERVIEW

The Inter-M PA-120 are integrated mixer amplifiers. They are complete and economical multi-purpose desktopmixer-amplifiers providing a cost-effective solution to public address and similar applications. Three versions areavailable with outputs of 120 watts respectively into direct (4 ohms) or distributed (70V/100V line) speaker systems.Each have six inputs; five microphones or line level selectable balanced on XLR-F and/or euro block connectorinputs with rear mounted level selector switch setting the input sensitivity from mic to line level. The sixth input ishigh impedance unbalanced on summing RCA connectors. A telephone input terminal is provided for telephonepaging. Base and treble tone control provide sound equalization. VOX priority override is available on mic 1-2 andtelephone inputs. Additionally there is a preamp mix out (500mV, 600 ohm); main amp in (1V, 47k ohm); whichallows linking of multiple amplifiers together. A master volume control, loudspeaker zone selection (5 zone and “all-call”) on 70/100 volt outputs and built-in chime and siren tones (manual operation) is also featured. The PA-Seriesamplifier is designed for reliable service in permanent installations, and comes complete with short-circuit andthermal protection and is ideal for voice reproduction and BGM applications. The PA-Series is an ideal solution formedical offices, restaurants, schools, etc.

∴THE NEW PA-120 ADVANTAGE

Frequency Response (CH1~6)The new PA-120 offers enhanced frequency response compared to the former PA-4000. With an improvedwidened frequency response of 50Hz to 16Kz the new PA series offers better speech intelligibly and higher qualitysound for Music reproduction.S/N RatioThe new PA series has a higher signal to noise ration than its predecessor does. With a 78db S/N the new PAseries delivers better desirable power ratio than noise giving it great tone and high-resolution sound.Power Consumption (1/8W Output)Among their advantages is their power efficiency, reduced power consumption and lower heat dissipation overtraditional amplifiers.Weight / SizeThe new PA Series offers reduced size and weight for easier portability and economy in transportation costs.Phantom PowerPhantom power is now available on inputs 1 to 3 allowing the use of high sensitivity condenser microphones.

Speaker Zone Pre-setThe SPEAKER ZONE ON PRESET can be set via these DIP switches. This function allows the amplifierzone output selector to revert to a pre-set selection when the power switch is turned ON. For example,by setting DIP switch1 and 3 on, this will set the speaker zones 1 and 3 on when the power switch isturned on.Input Selection Switch (INPUT 1~3, INPUT 4~5)- INPUT 1 ~ 3Select LINE, MIC or PHANTOM depending on the input signal. Select PHANTOM to supply DC voltage required by condenser microphone.- INPUT 4 ~ 5Select LINE or MIC in accordance with the input signalMIX OUT The MIX-out is a line level signal output of the mix bus. It can be used for recording, linking to anotheramplifier for additional power, or linked to a processor and subwoofer amplifier.PROTECTIONThe PA-120 employs a protection circuit to protect the amplifier from momentary or long-term overloadand overheating. The PROTECTION LED on the front panel when lit indicates that the protection circuit isactivated. No audio will be heard when the amp is in protection mode.EXT INThis input can be used to expand the mixer inputs. It is the input to the power amp stage of themixer amp. An external mixer can be connected to this input and expand the input capacity of theMixer amplifier.Priority Volume ControlSets the ducking level giving priority to telephone, mic 1, mic 2, EXT in, chime and Siren, over allother BGM inputs.

∴TECHNICAL NOTES

External CHIME connectorThe CHIME can be remotely activated by connecting a push button switch to this terninal.EX MUTE connectorThe output level of INPUT 3~6 are controlled by the priority control volume when the external mute switchterminal is closed.

∴FEATURE

•High-efficiency Class-D Amplifier Offer greater power efficiency over traditional amplifiers, reduced physical size and lower heat dissipation.•Multiple input 6-Inputs (3 x 3 pin balanced XLR/ euroblock, 2 x balanced euroblock, 1 x stereo phono)Telephone input (Euroblock connectors)•Priority broadcastingPriority-telephone, mic 1, mic 2, chime and Siren, in order from ch1 to ch6.•Phantom Power SupplyPHANTOM POWER is available (INPUT 1 ~ 3) for use with condenser microphones. •Input/Output MonitoringChannel-specific input signal LEDOutput level 7 segment Bar graph LED VU meter.•Base and Treble tone controlsProvide user adjustable sound equalization.•5 Zone speaker selectionAllows the selection and audio broadcast to a specific speaker zone, all zones or any combination of all 5 zones.•Announce tonesChime & Siren•ExpandabilityLine in / Line out•Optional 19” rack kits (BKT-PA2000A)•EX CHIME, EX MUTEIt can be used when the external chime and mute switch terminal is closed.

∴SPECIFICATION

PA-120

Rated Output 120W

Frequency Response (@ Speaker Output, 1W) 80Hz - 15kHz

THD (@ Rated ower, 1kHz) less than 1%

S/N (@ Rated Output, Line Input) more than 78dB

TONE CONTROL (100Hz, 10kHz, ±3dB) ±10dB

Input Sensitivity / Impedance (@ High-Z Output)

IN UT 1~5 MIC -50dBu / 2kΩLINE -10dBu / 2kΩIN UT 6 -10dBu / 10kΩTEL IN 0dBu / 10kΩEXT IN 0dBu / 20kΩMIX OUT / Impedance 0dBu / 10kΩSpeaker Output Level/

Impedance

Low-Z Output Level 120W / 8ΩImpedance 8Ω, 4ΩHigh-Z

Output Level 100V

Impedance 84ΩOutput Level 70V

Impedance 41ΩOperating Temperature -10℃ ~ +40℃

ower Source AC 120V/60Hz or AC 230V/50Hz or AC 240V/50Hz

(Supplied AC mains transformer depends on contrary requirements)

ower Consumption 60W

Weight 7.4kg/ 16.3Ib

Dimensions (W x H x D) 420 x 88 x 319mm/16.5 x 3.5 x 12.6in

∴APPLICATION

Applications include BGM, background music or paging. Ideal for use in places such as the classroom, training center,restaurant, and cafe.•Restaurants and Lounge•Seminar rooms and lecture halls•K through 12•Higher education•Conference Room•Retail ShopsOur technology can be found in schools, hospitals, malls, campus, transportation, correctional facilities and a variety ofcommercial and industrial applications. •Education facilities(Elementary / high school / College /University / Training Institute, etc)•Commercial establishments(Department stores, Shopping centers, multiplex cinemas, hospitals, etc.)•Public facilities(Government offices, transportation, stations, terminal, exhibition hall, factory, resorts, etc.)

∴ACCESSORIES

BKT-A120

※Design and specification are subject to be changed for the improvement of product uality without pre notice. 2015. 3. V1

Inter-M Corp. (IMK)

719, Dobong-ro, Dobong-gu, Seoul, Korea

Overseas Sales Team

Tel_ +82-2-2289-8141~7 Fax_ +82-2-2289-8149 E-mail_ ov[email protected] www.inter-m.com

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