Table of Contents
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CONTENTS
CONTENTS (ENGLISH)
1
CONTENTS
2
APPROVALS
3
WARNINGS
3.1 EXPLANATION OF GRAPHICAL SYMBOLS
3.2 WARNING
3.3 CAUTION
3.4 IMPORTANT SAFETY INSTRUCTIONS
3.5 USER RESPONSIBILITY
3.5.1
3.5.2
3.5.3
4
INTRODUCTION
4.1 UNPACKING
4.2 FRONT PANEL
4.3 REAR PANEL
5
REAR PANEL FEATURES
5.1 GAIN
5.2 SENSITIVITY
5.3 LINK SWITCH
5.4 OPERATING MODES
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
6
INSTALLATION
6.1 MOUNTING
6.2 COOLING
6.3 OPERATING VOLTAGE
6.4 GROUNDING
6.5 POWER CONSUMPTION
6.5.1
7
CONNECTIONS
7.1 INPUT CONNECTIONS
7.1.1
7.1.2
7.2 CONNECTING LOUDSPEAKERS
8
OPERATION
8.1 OPERATION PRECAUTIONS
8.2 POWERING UP – SOFT START
8.3 INPUT ATTENUATORS
8.4 INDICATORS
9
PROTECTION FEATURES
9.1 OUTPUT LIMITER
9.2 THERMAL PROTECTION
9.3 VHF PROTECTION
9.4 SHORT CIRCUIT PROTECTION
9.5 AC MAINS VOLTAGE PROTECTION
9.6 DC PROTECTION
10
MAINTENANCE
10.1 TROUBLESHOOTING
11
WARRANTY
12
SPECIFICATIONS MA200Q
PRINT
MA200Q USER GUIDE
LOUDSPEAKER DAMAGE
LOUDSPEAKER OUTPUT HAZARD
RADIO INTERFERENCE
STEREO MODE
NOTES FOR AMPLIFIER TESTING
TANDEM MODE
BRIDGE MONO MODE
BRIDGE MONO MODE FEATURES
CALCULATION
BALANCED INPUTS
UNBALANCED INPUTS
Martin Audio – MA200Q Amplifier
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Summary of Contents for Martin Audio MA200Q
- Page 1 8.2 POWERING UP – SOFT START 8.3 INPUT ATTENUATORS 8.4 INDICATORS PROTECTION FEATURES 9.1 OUTPUT LIMITER 9.2 THERMAL PROTECTION 9.3 VHF PROTECTION 9.4 SHORT CIRCUIT PROTECTION 9.5 AC MAINS VOLTAGE PROTECTION 9.6 DC PROTECTION MAINTENANCE 10.1 TROUBLESHOOTING WARRANTY SPECIFICATIONS MA200Q Martin Audio – MA200Q Amplifier...
- Page 2 If the plug provided does not fit your mains outlet, consult an electrician or a competent person to replace the fitted plug. See p ag e 9, 6.3 for wiring colour code Martin Audio – MA200Q Amplifier...
- Page 3 Loudspeaker output hazard Power amplifiers are capable of producing hazardous output voltages. To avoid the risk of electric shock, do not touch any exposed loudspeaker wiring, when the amplifier is operating. See page 12 Connecting loudspeakers. Martin Audio – MA200Q Amplifier...
- Page 4 Unpacking Each Martin Audio MA series amplifier is built to the highest standard and thoroughly inspected before it leaves the factory. After unpacking the unit, examine it carefully for any signs of transit damage and inform your dealer if such damage is found.
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Page 5: Rear Panel
The N eu tr ik Spe ak on co nn e ctor is u se d o n th e o utp uts of th e a mp lifie r a full de s cr ip tio n ca n b e fou nd in the o pe ra tio n se c tion . ( Se e p ag e1 2) . Martin Audio – MA200Q Amplifier... - Page 6 REAR PANEL FEATURES Gain The gain of the MA200Q is fixed at 32 dB. Sensitivity Sensitivity is volts (rms) or dBu (referred to 0.775Vrms) that are required to obtain full output power. As the output power varies with the load impedance, the table below lists sensitivity versus load configuration.
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Page 7: Link Switch
This is significant for signals below 100 Hz (sub bass etc.) and improves the power bandwidth. Be sure to use balanced inputs on all measurement equipment (including oscilloscope probes) if you are bench testing. Martin Audio – MA200Q Amplifier... -
Page 8: Tandem Mode
Bridge mono mode Bridge mode is used to deliver increased power to the loudspeakers. Using the MA200Q in bridge mode reduces the number of output channels from four to two. The nominal impedance of the load must be more than 3 ohms. To bridge channels A and B set the A+B link /bridge switch to “IN”... -
Page 9: Mounting
So, if an 8 ohms load is connected in bridged mode, one channel shares one 4 ohms part of the load, and the other channel shares the other 4 ohms part. The power into 4 ohms from an MA200Q is 200W. -
Page 10: Grounding
4 ohms 2 ohms 1065 note 1 Average power with musi c as program source. The amplif i er driven to clip level. note 2 Normal music power with 9dB headroom, IEC standard power rating. Martin Audio – MA200Q Amplifier... -
Page 11: Calculation
: PIN 1 G RO UN D/SHIEL D PIN 2 H OT ( +) PIN 3 C OL D (- ) Martin Audio – MA200Q Amplifier... -
Page 12: Unbalanced Inputs
Channels A, B output connector Pin +1, Pin –1 = Output A Pin +2, Pin –2 = Output B Channels C, D output connector Pin +1, Pin –1 = Output C Pin +2, Pin –2 = Output D Martin Audio – MA200Q Amplifier... -
Page 13: Warnings
• It is always a good idea to turn down the gain controls during power-up, to prevent speaker damage in case a high signal is present at the input. Martin Audio – MA200Q Amplifier... -
Page 14: Input Attenuators
If the disto rtio n e xc ee d s 1%TH D for an y re a so n ( vo ltag e o r c ur re nt clip p in g) , the Martin Audio – MA200Q Amplifier... -
Page 15: Vhf Protection
Short circuit protection All Martin Audio MA Series amplifiers are completely short circuit protected. The protection circuit permits very high peak currents, but still holds the output devices within the safe operating area. If a sh o rt c irc uit is maintain ed , the c ha n ne l a ffec te d w ill e ve ntu ally go into a th er ma l p ro te c t cy cle u ntil th e s ho rt circ uit h as b ee n re mov ed . -
Page 16: Maintenance
In the unlikely event of on a non-user rectifiable fault, return the amplifier to your supplier or an approved service centre. Martin Audio cannot be held responsible for damage or injury as a result of the top cover being removed. - Page 17 During this warranty period MARTIN AUDIO LTD or it's nominated agents, will undertake to repair, or at it's discretion, replace this product at no charge to it's owner, when failing to perform as specified, providing the unit is returned undamaged, in it's original packaging, shipping prepaid, to the factory, distributor or authorised service facility.
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Page 18: Specifications Ma200Q
Input Vrms Ref 4Ω for full power 4 x Single Channel 0.71 Impedance 20KΩ Differential 10KΩ Single ended c.m.r.r. 50dB DIMENSIONS (W) 483mm x (H) 88mm x (D) 325mm (W) 19ins x (H) 3.5ins x (D) 12.8ins Martin Audio – MA200Q Amplifier... - Page 19 4 x Neutrik Combo, + 3 pin Phoenix Output Connectors 2 x Neutrik Speakons Clip Limiters Push Switch “ON”/ ”OFF” per Channel Input Link switches A+B, C+D, B+C Speakon and Comb jack, are registered Trademarks of Neutrik AG Liechtenstein. Martin Audio – MA200Q Amplifier...
- Page 20 < > CONTENTS PRINT MA200Q Amplifier Please Click here to return to main menu Please Click here to visit our website The Martin Experience Century Point, Halifax Road, Cressex Business Park, High Wycombe, Buckinghamshire HP12 3SL, England. Telephone: +44 (0)1494 535312 Facsimile: +44 (0)1494 438669...
- Page 21 < > CONTENTS PRINT MA200Q Amplifier User’s Guide ENGLISH The Martin Experience...
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