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Manual JBL MPC

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  • JBL MPC - page 1

    21 MPC Series Power Amplifiers Owner ’ s Manual TD-000074-00 TD-000074-00 R e v . C ...

  • JBL MPC - page 2

    1 T able of Contents T able of Contents .............................................................................................................. ..................................................................... 1 W ar ning notices ............................................................................................................. ...

  • JBL MPC - page 3

    2 Rack Mounting Precautions T o a void dama ge to the amplifier mounting ears and/or rack rails , the amplifier must be supported at all four corners when used in portable racks . Consult JBL Ser vice Dept for av ailability of R ear Support Brac ke ts . Lifting Precautions In order to saf ely mov e or install the amplifier, it is recommended that t ...

  • JBL MPC - page 4

    3 Description T he MPC Series from JBL is a line of professional pow er amplifiers specifically designed for contracting applica tions . There are six models , eac h with two independent channels . Eac h model in the MPC Series line is availa b le in a T v ersion for dri ving either 200V , 140V , 100V , 70V , 50V , or 25V constant v oltage ...

  • JBL MPC - page 5

    4 1 22 5 12 12 33 4 4 5 12 2 4 12 12 CH1 CH2 CH1 CH2 BRIDGE MONO BRIDGE MONO LOW IMPEDANCE LOW IMPEDANCE DIR. OUTPUT DIR. OUTPUT ISOL.OUTPUT ISOL.OUTPUT AUDIO TRANSFORMER AUDIO TRANSFORMER 70V 70V 25V 25V 100V 100V 07 0 1 0 0 07 0 1 0 0 0 0 -dB -dB 10 10 88 66 44 22 24 24 18 18 14 14 STEREO 12 12 CH2 INPUT CH1 C H2 C H 1 PARALLEL BRIDGE LEVEL LEVEL ...

  • JBL MPC - page 6

    5 b) Dept hThe amplifiers require a r ac k depth of 45.7 cm (18 in) to clear the rear support ears . T he r ear panel is 42.9 cm (16.9 in) behind the plane of the fr ont mounting rails , allo wing some room for r outing of wires . Stability , Reliability and Protection The MPC Series is engineered for stability and exceptional reliability , w ...

  • JBL MPC - page 7

    6 Outputs Cover ed barrier strips located on the r ear panel allow safe , shockproof speaker ca b le connec- tions to the amplifier outputs . See the dia grams for details on connecting speaker s and/or distributed (25V , 70V , 100, 140V , and 200V) lines . Insulated connector s of the type sho wn are recommended. Alw a ys make sure the amplifier i ...

  • JBL MPC - page 8

    7 Driving Distributed Lines Make sure the sum of the pow er settings of all the speaker s does not exceed the po wer rating of the amplifier . Be aware tha t the actual power dra w on some loudspeakers can v ary considerably from their tap labels . The tap labelings on some speaker s refers to their power dr a w from the distributed line, w hile on ...

  • JBL MPC - page 9

    8 Loading an amp channel Be careful not to o v er load the c hannel when combining low- impedance and distributed loads on the same amplifier c hannel, because either load af fects the amount of p ow er a vaila ble for the other . T he next two par ag raphs explain how the y load the amplifier output. Inter nal output signal f l o w Each T - ...

  • JBL MPC - page 10

    9 The tables below ar e general guidelines on which combinations ar e acce ptable. MPC200T Sum of Speaker T aps Connected to AUDIO TRANSFORMER Outputs 0 W 22 W* 44 W** 88 W*** 175 W**** Load connected to 2 Ω ✔ ✗✗✗✗ LOW IMPE D ANCE 4 Ω ✔✔✔✗ ✗ output 8 Ω ✔✔✔✔✗ 16 Ω ✔✔✔✔✗ 32 Ω ✔✔✔✔✗ MPC300T S ...

  • JBL MPC - page 11

    10 Using Multiple Distributed Line V oltages The MPC amplifiers allo w you to connect distributed lines to an y of the 100V , 70V , and 25V outputs at the same time. F or example, a single c hannel could driv e both a 70V and a 25V line; such flexibility could sa ve y ou the e xpense of an additional amplifier . The total pow er of all the speakers ...

  • JBL MPC - page 12

    11 Bridged Mono Input Connection The follo wing dia grams show input and output connections for bridged mono mode . Note that the MPC200 and 200T models use a different method for bridged mono than do the MPC300, 300T , 600 & 600T . MPC200 & 200T Bridged Mono Configuration 1) T o engag e the bridged mono mode, jumper the barrier strip in ...

  • JBL MPC - page 13

    12 Low Impedance Bridged Mono Applications T he bridged mono mode produces higher output v oltages with the trade-off of requiring a higher impedance load and providing a slightly lo wer damping factor . Never - theless , it is an eff ectiv e way of pr oviding v er y high power le vels to loudspeak er s such as 4 Ω or 8 Ω subw oofers. Minimu ...

  • JBL MPC - page 14

    13 Controls T he c hannel atten uator controls , labeled in dB of atten uation, are located on the r ear panel. T hey ha ve 11 detents and are adjustable from 0 dB (full gain) to ∞ (full attenuation). Displays T he LED displa ys on models MPC200 and 200T are dif f erent from those on models MPC300, 300T , 600, and 600T . Models MPC300, MPC300T , ...

  • JBL MPC - page 15

    14 AC Power The MPC amplifiers are av ailable for 120 or 220240 V A C, 50 or 60 Hz operation. Eac h amplifier is factory configured for the line volta g e of the market into whic h it is sold. Operation Before fir st turning on the amplifier, tur n the gain controls of fi.e ., fully counterc lockwise until you confirm the amplifier is oper ...

  • JBL MPC - page 16

    15 Shor t-Circuit Pr otection MPC amplifier s use the prov en Output A veraging short circuit protection system. The circuit per mits full output cur rent even into r esistiv e or r eactiv e 2 Ω load, but reduces the current saf ely by about 75% if the output is shor ted. T ransient Muting T ur n-on and turn-off m uting k eeps transients ...

  • JBL MPC - page 17

    16 Specifications Direct Output Models Audio Transfo rmer AND Direct Outputs Electronics MPC200 MPC300 MPC600 MPC200T MPC300T MPC600T Direct P ow er Out 4 Ω bridge 1 kHz, 1% THD 1 700 W 900 W 1800 W 700 W 900 W 1800 W 8 Ω bridge 45 Hz20 kHz, 1% THD 450 W 600 W 1200 W 450 W 600 W 1200 W 2 Ω load/channel 2 , 1 kHz, 1% THD 1 350 W 450 W 900 W ...

  • JBL MPC - page 18

    17 Power Consumption Some background on A C ratings is necessar y to fully understand po wer consumption specifications . Essentiall y , ther e are thr ee ratings of interest: (1) the legal operating current as measured by the Saf ety Ag encies , (2) the maxim um e xpected a verage current dra w under worst-case pr og ram material, and (3) the peak ...

  • JBL MPC - page 19

    18 Heat Emission Any pow er that enters the amplifier thr ough the power cor d and does not exit through the speaker outputs turns into heat, which the amplifier m ust rid itself of by exhausting it to the outside . In indoor use this may pr esent a challenge to the building s air conditioning system. Use the table below to predict the hea t tha ...

  • JBL MPC - page 20

    19 T roubleshooting PROBLEM: Channel will not come out of muting .  Reduce the gain to ∞ a tten uation. If this releases the muting , raise the gain bac k up slowly while you watc h the SIGN AL and CLIP indicators . The problem may be an abnormal signal (possibly with ex cessi ve ultrasonic ener g y , for example) that could otherwise dama g e ...

  • JBL MPC - page 21

    20 For Further Assistance WITHIN THE UNITED ST ATES: General Infor mation or T echnical Assistance F or more inf or mation on JBL products , inc luding these power amplifier s , contact your nearest JBL Professional products dealer or the JBL factory at the address below . Repairs Please do not ship your amplifier to JBL or a JBL authorized repair ...

  • JBL MPC - page 22

    22 JBL Professional 8500 Balboa Boulevard, P .O. Box 2200 Northridge, California 91329 U.S.A. A Harman International Company MPC MANUAL 6/98 ...

Manufacturer JBL Category Stereo Amplifier

Documents that we receive from a manufacturer of a JBL MPC can be divided into several groups. They are, among others:
- JBL technical drawings
- MPC manuals
- JBL product data sheets
- information booklets
- or energy labels JBL MPC
All of them are important, but the most important information from the point of view of use of the device are in the user manual JBL MPC.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals JBL MPC, service manual, brief instructions and user manuals JBL MPC. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product JBL MPC.

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A complete manual for the device JBL MPC, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use JBL MPC by users. Manuals are usually written by a technical writer, but in a language understandable to all users of JBL MPC.

A complete JBL manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual JBL MPC - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the JBL MPC, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the JBL MPC, that we can find in the current document
3. Tips how to use the basic functions of the device JBL MPC - which should help us in our first steps of using JBL MPC
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with JBL MPC
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of JBL MPC in a specific country, if it was not possible to solve the problem on our own.

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