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Mackie M-2600 Owner's Manual - Application Diagrams
8
APPLICATION DIAGRAMS
The following pages show some of the more
common uses for the M•2600, including
stereo, mono, and bridged operation.
USING THE LOW CUT FILTER
The application diagrams include some
small graphs of the frequency range going into
and coming out of the amplifier. These graphs
show the effect of the
LOW CUT FILTER to roll
off the lower frequencies going to the speakers.
HIGH PASS
The
LOW CUT FILTER rolls off the lows be-
low the frequency setting of the rotary control.
It affects the Speaker output and the
THRU
output (if the
THRU switch is set to HIGH OUT
or
LOW OUT).
Using the
LOW CUT FILTER allows you to
tailor the output to the speakers so they re-
ceive only the frequency range they can
handle. For example, if your speakers can
reproduce the frequency range down to
35Hz, set the
LOW CUT FILTER to 35Hz. If
your main speakers can reproduce the full
range, then set it to
OFF.
In the hookup diagrams on pages 9–12 and
page 15, this small icon is used to indicate that
the lows have been rolled off by using the
LOW
CUT FILTER.
Note: On page 14 and page 16 it shows the
use of the internal
CROSSOVER.
FULL PASS
This icon indicates that the full frequency
range is passed, either to the speakers or to the
THRU outputs. In the pages that follow, this
also indicates a full-range signal coming from
your mixer or preamp.
LOW PASS
This icon indicates that the highs have been
rolled off. The low-pass range is available if you
use the internal
CROSSOVER, discussed in
more detail on page 13, with some application
diagrams on pages 14, 15, and 16.
STEREO
TYPICAL
SU
B
W
O
O
FE
R
TYPICAL
35 Hz
ON
TYPICAL
LOW CUT FILTER CROSSOVER
SWITCHED OUTPUT
170 Hz
100 Hz
OFF
STAGE
MONITOR
90Hz
LOW
OUT
HIGH
OUT
THRU
120Hz
60Hz
AMP MODE
BRIDGED
MONO
OUTPUT APPLICATION
LIMITER
(CH1 & CH2)
LOW OUT
(SUBWOOFER)
OFF
CH's
SUMMED
FULL
RANGE
THRU
10
Hz
1
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
dB
–10
dB
–5
dB
0
dB
5
dB
Low Cut Filter
Lev
el, dB
Frequency, Hz
Summary of M-2600
Page 1
M•2600 owner’s manual high-current power amplifier ™ o l – 3 – 6 –9 –2 0 – 3 – 6 –9 –2 0 s ig o l s ig c h 1 3 3 3 1 2 9 2 3 2 5 2 1 2 7 1 9 1 7 1 1 3 3 3 1 2 9 2 3 2 5 2 1 2 7 1 9 1 7 1 1 0 0 1 .2 3 v (+ 4 d b u ) s e n s it iv it y g a in /d b c h 2 p r o t e c t c o ld h o t s h o r t t e m p s t...
Page 2
Caution avis risk of electric shock do not open risque de choc electrique ne pas ouvrir caution: to reduce the risk of electric shock do not remove cover (or back) no user-serviceable parts inside refer servicing to qualified personnel attention: pour eviter les risques de choc electrique, ne pas en...
Page 3: Introduction
3 part no. 820-078-00 rev. A 10/98 ©1998 mackie designs, all rights reserved. Printed in the u.S.A. Lend me your ears exposure to extremely high noise levels may cause per- manent hearing loss. Individuals vary considerably in susceptibility to noise- induced hearing loss, but nearly everyone will l...
Page 4: Read This Page!
4 read this page! 5. Determine which amp mode is best for your application: • stereo mode (separate left and right inputs, separate left and right outputs) is the typical setup for amplifying stereo signals. • mono mode (sometimes called dual- mono mode — one or two inputs, two mono outputs) is for ...
Page 5
5 serial number manufacturing date risk of electric shock do not open caution 2600 watts 4 ohm load min. 120 vac 60 hz 2000 watts stereo typical ch 1 ch 2 + – – + mono bridge • the following are registered trademarks of mackie design inc.: "mackie", "fr series", and the "running man" figure • concei...
Page 6: How to Use This Manual
6 how to use this manual glossary: a haven of non- techiness for the neophyte just in case you’re new to the audio world, we’ve included a fairly comprehensive dictio- nary of pro audio terms. If terms like “clipping,” “noise floor,” “unbalanced,” or “groupie” leave you blank, flip to the glossary a...
Page 7: Contents
7 contents quick start .......................................................... 4 application diagrams ......................................... 8 feature descriptions .............................................. 17 gain ............................................................. 17 meters ......
Page 8: Application Diagrams
8 application diagrams the following pages show some of the more common uses for the m•2600, including stereo, mono, and bridged operation. Using the low cut filter the application diagrams include some small graphs of the frequency range going into and coming out of the amplifier. These graphs show...
Page 9
9 serial number manuf a cturing d a te risk o f electric sh o c k d o no t o pen caution 2600 watts 4 ohm load min. 120 v ac 60 hz 200 0 w a t t s stereo typical ch 1 ch 2 + – – + mono bridge • the following are registered tr a demarks o f m ack ie design inc.: "mackie", "fr series", and the "runnin...
Page 10
10 m•2600: main speakers and stage monitors with one amplifier serial number manuf a cturing d a te risk o f electric sh o c k d o no t o pen caution 2600 watts 4 ohm load min. 120 v ac 60 hz 200 0 w a t t s stereo typical ch 1 ch 2 + – – + mono bridge • the following are registered tr a demarks o f...
Page 11
11 m•2600: eight monitor speakers-mono mode fr om mixing console monit or out serial number manuf a cturing d a te risk o f electric sh o c k d o no t o pen caution 2600 watts 4 ohm load min. 120 v ac 60 hz 200 0 w a t t s stereo typical ch 1 ch 2 + – – + mono bridge • the following are registered t...
Page 12
12 m•2600: stereo system with two amplifiers in bridged mode serial number manuf a cturing d a te risk o f electric sh o c k d o no t o pen caution 2600 watts 4 ohm load min. 120 v ac 60 hz 200 0 w a t t s stereo typical ch 1 ch 2 + + – – + – – + mono bridge • the following are registered tr a demar...
Page 13
13 louder quieter cr ossov er point frequency in hz frequency in hz output level db louder quieter output level db low out the output level rolls off above the crossover point. By setting the output application switch to low out (subwoofer), any speakers attached to the m•2600 will play only the low...
Page 14
14 m•2600: stereo system biamped with subwoofers, option 1 serial number manuf a cturing d a te risk o f electric sh o c k d o no t o pen caution 2600 watts 4 ohm load min. 120 v ac 60 hz 200 0 w a t t s stereo typical ch 1 ch 2 + – – + mono bridge • the following are registered tr a demarks o f m a...
Page 15
15 serial number manuf a cturing d a te risk o f electric sh o c k d o no t o pen caution 2600 watts 4 ohm load min. 120 v ac 60 hz 200 0 w a t t s stereo typical ch 1 ch 2 + – – + mono bridge • the following are registered tr a demarks o f m ack ie design inc.: "mackie", "fr series", and the "runni...
Page 16
16 m•2600: stereo system biamped with bridged subwoofer serial number manuf a cturing d a te risk o f electric sh o c k d o no t o pen caution 2600 watts 4 ohm load min. 120 v ac 60 hz 200 0 w a t t s stereo typical ch 1 ch 2 + – – + mono bridge • the following are registered tr a demarks o f m ack ...
Page 17: Feature Descriptions
17 feature descriptions gain these front panel knobs allow you to control the levels going into the output section of the m•2600 amplifier. Their travel is detented, meaning there are 20 built-in “resting points” so you can easily set both controls to the same level. Usually, these controls are set ...
Page 18
18 you may wonder why we didn’t use just one stereo control to control both sides. That’s in case your applica- tion requires a left/right imbalance (due to an irregu- larly shaped room) or if you’re using the two sides for completely different purposes (moni- tor in channel 1 and side-fill in chann...
Page 19
19 short if this led comes on, the m•2600 has de- tected a short circuit in either of the outputs, meaning that the positive (+) and negative (–) speaker wires are touching, or a speaker itself is shorted out. Such a condition causes the m•2600 to engage its protect mode (when a signal is present), ...
Page 20
20 serial number manufacturing date risk of electric shock do not open caution 2600 watts 4 ohm load min. 120 vac 60 hz 2000 watts ch 1 ch 2 + – – + mono bridge • the following are registered trademarks of mackie design inc.: "mackie", "fr series", and the "running man" figure • conceived, designed,...
Page 21
21 what’s that? Why doesn’t the fan just go fast all the time? Well, if it did, you might actu- ally hear it whirring during your quiet moments (there are quiet moments in your life, aren’t there?). While this whirring would be of no concern in most live-sound situations, it could become annoying in...
Page 22
22 speaker outputs the binding posts provide a secure and safe connection for bare speaker wire. To use the binding post outputs, unscrew them enough to reveal the holes on their sides, then insert your stripped wires (stripped about 3/8" back) into the holes and retighten the posts (finger tight is...
Page 23
23 ordinarily, applying a positive voltage to a speaker’s positive input and negative voltage to the negative input results in an outward excursion of the woofer. But some woofers are built with reverse polarity, meaning that the above conditions result in an inward excursion. If you’re not sure whi...
Page 24
24 you can connect an unbalanced xlr cable to the m•2600, although this would be unusual — as unusual as an unbalanced xlr output. However, if you have an unbalanced xlr connection to make, refer to the “connectors” section (appendix c) at the back of this manual for more information. The m•2600 amp...
Page 25
25 10 hz 1 hz 100 hz 1k hz 10k hz 20k –15 db –10 db –5 db 0 db 5 db l c fil lev el, db frequency, hz in order to match the output bandwidth with your particular speaker system, the m•2600 amplifier has a tunable low cut filter. The frequencies are marked along the knob’s travel : • fully countercloc...
Page 26
26 stereo mode (separate left and right inputs, separate left and right outputs) is the typical setup for amplifying stereo signals. Mono mode (sometimes called dual- mono — one or two inputs, two mono outputs) is for sending a mono signal to two different speaker sets, with separately-adjustable ga...
Page 27
27 output application switch the output application switch should be configured before you turn on the amplifier. This switch allows you to choose between three different configurations: limiter on (typical). This is the normal configuration: full-bandwidth audio with protective limiting. Limiter of...
Page 28
28 low out (subwoofer) here’s a special surprise: if you bought the m•2600 amplifier to power a subwoofer system, you just saved yourself the cost of a crossover! The m•2600 amp has an active crossover built in. The amplifier can play the frequencies below the crossover point set with the cross- ove...
Page 29
29 general precautions and considerations ac power considerations be sure the m•2600 is plugged into an outlet that is able to supply the correct voltage speci- fied for your model. If the voltage should drop below 97% of the line voltage, the m•2600 will no longer be able to supply rated power. (it...
Page 30
30 it is recommended that a stiff supply of ac power be used because the amplifier places high current demands on the ac line. The more power that is available on the line, the louder the amplifier will play and the more peak output power will be available for cleaner, punchier bass. A suspected pro...
Page 31
31 70v distribution systems a distributed sound system uses a constant- voltage, high-impedance network that feeds a number of tapped transformers which, in turn, deliver power to individual speakers. Each tap is rated in watts, so you can select the amount of power delivered to the speaker. Develop...
Page 32: Appendix A: Service Info
32 appendix a: service info • if the output application switch is set to low out (subwoofer), make sure the low cut filter frequency control is set to off or nearly off. If it is turned up above the subwoofer cutoff frequency, the output from the amplifier will be diminished. • is the short led lit?...
Page 33
33 as soon as the music gets loud, the amp shuts down! • check the m•2600’s meters. Be sure that ol is not lighting up frequently or continuously. • can the amp breathe? The m•2600 amps draw their ventilation air in from the front and out through the side panels. They need plenty of fresh air to sta...
Page 34: Appendix B: Glossary
34 appendix b: glossary clipping a cause of severe audio distortion that is the result of excessive gain requiring the peaks of the audio signal to rise above the capabilities of the amplifier circuit. Seen on an oscillo- scope, the audio peaks appear clipped off. To avoid distortion, reduce the sys...
Page 35
35 referenced to 1 vrms across any impedance. Commonly used to describe signal levels in consumer equipment. To convert dbv to dbu, add 2.2 db. Decibel (db) the db is a ratio of quantities measured in similar terms using a logarithmic scale. Many audio system parameters measure over such a large ran...
Page 36
36 eliminates frequencies below its cutoff frequency. There are also high-cut (low-pass) filters, bandpass filters (which cut both higher and lower frequencies but leave a band of freq- uencies in the middle untouched), and notch filters (which remove a narrow band but leave the high and low frequen...
Page 37
37 maintaining proper circuit impedance rela- tionships is important to avoid distortion and minimize added noise. Mackie input and out- put impedances are designed to work well with the vast majority of audio equipment. Knee a knee is a sharp bend in an eq response curve, not unlike the sharp bend ...
Page 38
38 q a way of stating the bandwidth of a filter or equalizer section. An eq with a q of .75 is broad and smooth, while a q of 10 gives a nar- row, pointed response curve. To calculate the value of q, you must know the center frequency of the eq section and the frequencies at which the upper and lowe...
Page 39: Appendix C: Connectors
39 appendix c: connectors (output from mixer), ring to signal return (input back into mixer), and sleeve to ground (earth). • balanced mono circuits. When wired as a balanced connector, a 1⁄4" trs jack or plug is connected tip to signal high (hot), ring to sig- nal low (cold), and sleeve to ground (...
Page 40
40 speakons speakon ® connectors have become popular with many loudspeaker manufacturers be- cause they provide a quick, yet safe and secure method of connecting speaker cables. The con- nectors have a twist-locking mechanism that prevents them from being pulled out acciden- tally. Plus, they are ca...
Page 41: Appendix D: Arcane
41 sleeving on the drain wire (the one that connects to pin 1) to prevent it from contacting the connector shell. 2. Don’t connect the xlr connector shell to pin 1 of the xlr connector unless necessary for rfi shielding. Doing so is an invitation for a ground loop to come a-courting. 3. Do ensure th...
Page 42
42 of rf interference and plan for them before you begin construction. Know the frequency, transmitter power, etc. You can get this information by calling the station. Remember that many broadcast stations change the antenna coverage pattern and transmitter power at night. 11. Don’t use hardware-sto...
Page 43
43 the best way to accomplish this goal is to optimize the input and output levels for each component in the system. It is best to start at the beginning of the chain (the microphone) and work your way to the end (the speakers). The following procedure details how to opti- mize a sound system with 1...
Page 44
44 biamplified and triamplified systems use separate power amplifiers to power each indi- vidual low-frequency and high-frequency driver. An electronic crossover (a.K.A. Active crossover) is located between the signal source and the power amplifier. The advantages of this method include: • increased...
Page 45: Appendix E: Technical Info
45 appendix e: technical info “parallel” means that the positive amp out- put connects to the positive terminals of all the speakers, and the negative amp output con- nects to the negative terminals of all the speakers. If one speaker fails in a parallel con- figuration, the others will still work, ...
Page 46
46 specifications m•2600 maximum power at 1% thd, midband: 500 watts per channel into 8 Ω 850watts per channel into 4 Ω 1300 watts per channel into 2 Ω 1700 watts into 8 Ω bridged 2600 watts into 4 Ω bridged continuous sine wave average output power, both channels driven: 425 watts per channel into ...
Page 47
47 ac drop-out voltage: at approximately 63% of rated line voltage 19.00" (483mm) ventilation slots (do not cover) 17.24" (438mm) d ep th 1 5 .6 5 " (3 9 8 m m ) n o te : t h e d ep th is m ea s u re d f ro m t h e re a r fa ce o f th e ra ck e a rs 5 .2 " (1 3 2 m m ) 3 u o ve ra ll d ep th 1 6 .6 ...
Page 48
48 block diagram + – + – ch.1 100 vdc + – ch.1 115 vdc + – ch.2 115 vdc to r oid al p ower transformer lamp fuse ma ckie designs m•2600 bl ock dia gram 9/21/1998 low cut fil ter cr ossover inver ter (for bridged mono opera tion) freq ch.1 gain ch.2 gain 60-90-120hz thr u–l ow–high limit–off -l ow ou...
Page 49
49 typical performance graphs 1 20 100 1k frequency (hz) per cent age (%) 10k 20k 0.1 0.01 0.001 ch.1 thd & noise vs freq. (both channels driven) 1000w into 2 Ω 700w into 4 Ω 425w into 8 Ω 1 20 100 1k frequency (hz) per cent age (%) 10k 20k 0.1 0.01 0.001 thd & noise vs freq. Bridged mode 2000w into...
Page 50
50 performance graphs 1 1 10 100 output power (w) per cent age (%) 3k 0.1 0.01 0.001 1k thd & noise vs output power into 4 Ω, bridged mode @ 20khz @ 1khz @ 20hz 1k 20 100 1k frequency (hz) damping f act or 10k 20k 100 10 1 ch.1 damping factor (into 8 Ω) vs frequency +10 20 100 1k frequency (hz) db (...
Page 51
51 a. Mackie warrants all materials, workmanship and proper operation of this fr series product for a period of three years from the original date of purchase. If you complete the optional question- naire portion of the product registration card, the warranty will be extended for an additional two y...
Page 52
Some of the people at our woodinville, washington factory who helped design, build, sell, and support your product. Some of the people at our woodinville, washington factory who helped design, build, sell, and support your product. ® ® ® ™ mackie designs inc. Mackie designs inc. 16220 wood-red rd. N...
Page 53
Detach, fold-up, tape shut and mail this portion to complete your registration official product registration card model # __________________________________________ serial # _______________________ purch. Date _____________ price paid _______________________________________________ dealer name _____...
Page 54
Mackie designs inc. 16220 wood-red rd. Ne woodinville, wa 98072 u.S.A. __________________________ __________________________ __________________________ __________________________ fold in half along this line and secure with tape (no staples please!) fold in half along this line and secure with tape ...