AKG Acoustics Drums Micing User Manual

Micing the  
Drum Set  
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This, in short, is a description of a typical modern drum set. Figure 1 shows what it looks like from the viewpoint of the  
audience.  
Figure 1  
In this White Paper we will discuss micing the drum set largely from the point of view of AKG’s highly regarded studio mics.  
We also want to introduce a new family of low-cost dynamic microphone models that are so good you’d think they were  
condensers! These are the models D440, D550 and D660; along with the D770, D880 and D112, they are ideal for the  
home studio and music reinforcement on stage. They all have high overload margins in the 145 to 150 dB, which is essen-  
tial in drum micing.  
BASIC MICING STRATEGY:  
At the most fundamental level we have a microphone on the kick drum and an overhead (OH) pair of mics picking up the  
entire set in stereo. Many a jazz recording, mixed direct-to-stereo, has been made with this setup. If you are doing this, we  
suggest the following options:  
Micing the Kick Drum:  
There are several important choices to make. Many experienced engineers prefer to use a tried and true dynamic micro-  
phone rather than a more recent condenser model. The reason is this: placed close to the head of the kick drum the micro-  
phone will pick up sound pressures that are extremely high. The overload characteristics of a dynamic mic can be more for-  
giving than those of a condenser. Also, since the dynamic goes into distortion more gently, the actual sound of slight non-  
linearities might actually be a desirable thing.  
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In the old days the AKG D12 dynamic was one of  
the mainstays of kick drum micing; today, the  
D112 is the modern version of that microphone.  
With its carefully engineered bass resonance cham-  
ber the D112 can handle any kick drum with ease.  
If you want to use a condenser with ultrawide low  
frequency capability, we suggest the C4000B, with  
its 0.5% THD overload point of 145 dB. Figure 2  
shows the difference between a dynamic and a con-  
denser at or near the onset of distortion. The  
dynamic has more residual distortion than the con-  
denser, but the condenser goes into gross distortion  
at a point where the dynamic may still be produc-  
ing only moderate amounts of distortion.  
Another big decision is where to put the micro-  
phone. Since a cardioid microphone is nearly  
always used, there will be a good bit of low fre-  
quency boost due to proximity effect. Suggested  
mic positions are shown in Figure 3. If the micro-  
phone is close to the middle (position 1), you will  
get a sound that has per-  
Figure 2  
haps too much low end  
and not enough articula-  
tion. As the microphone is  
moved progressively off-  
center, the sound will have  
more articulation, since  
you will be picking up less  
fundamental sound from  
the head. Stop well short  
of the edge, keeping a dis-  
tance of about 4 to 5 inch-  
es. The actual distance of  
the mic to the head will  
normally be in the range  
from 5 to about 2 inches.  
Figure 3  
Under some conditions, you may find it useful to put up a second kick mic, recording both on separate tracks, of course. A  
good combination here would be a dynamic on one track and a condenser on the other.  
The Overhead Pair:  
Pick these mics carefully, since they provide the largest part of the sonic stage you are looking for. Studio engineers usually  
pick the best condenser cardioids they have. For the most natural response we suggest a pair of C391s or C480s with their  
ultralinear high frequency response. If you want a slightly brighter sound, use a pair of AKG large diaphragm condensers set  
in their cardioid position. Another good choice is the C1000S. Its included presence booster creates a frequency rise in the  
5 to 9 kHz range that guarantees you’ll get a sound that will cut gently through a complex mix, even when the drummer  
is playing softly. For the home studio or on-stage the D440, D550 and D660 are excellent alternatives, with their broad high  
frequency boost in the 8 kHz range.  
The best position for the OH pair is often found about 6 to 8 inches over the players head. The mics should always be car-  
dioids or hypercardioids in order to hold down studio leakage, and should be pointed outward from each other and down  
toward the hi-hat on the left side and the large tom on the right side.  
The spacing between the OH pair is fairly critical. If they are close (within one foot), the sound stage you get will be tight  
with good delineation but with limited stereo spread. As you move the mics from 1 to 2 to 3 (keeping their target aiming  
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directions on the hi-hat and big tom), the sound  
will “open up” and will seem wider on the repro-  
duced stereo stage. Details here are shown in  
Figure 4.  
By the way, good drummers often know more  
about drum micing than many engineers think  
they do -- at least they know what has worked  
well for them in the past. Listen to them; they may  
be able to save you a lot of time.  
Putting it on Tape:  
So far we’ve only used four microphones (count-  
Figure 4  
ing 2 on the kick drum), and if you are in a tracking session, each one should go to its own track dry and unprocessed for  
later mix-down. Alternatively, if you are doing a direct-to-stereo recording, keep in mind that any processing you do cannot  
be undone easily.  
In the monitor mix, take advantage of stereo by spreading the OH mics from, say, just a little left of center to far right. This  
will give a clear picture of the drum set occupying the right half of the reproduced stereo stage, and this effect will be more  
pleasing if you have placed your OH mics to position 3 in Figure 4. With the OH mics arrayed like this you will have the  
entire left half of the stereo stage to place other instruments, such as the piano, which are miced in stereo. By all means  
place the kick drum in the center of the stereo stage. This is where it historically has been -- and where most listeners expect  
it to be. An overall view of the drum set with the four microphones is shown in Figure 5.  
Figure 5  
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If you’re going straight to stereo you will also have to make some processing decisions for the drum tracks. Avoid any rever-  
beration; you probably wont need it since there is enough overhand in the basic sound itself.  
A final point regarding recording levels: Mics that are close-in on a drum set will usually be sampling very high level sound  
fields. With most of the newer microphones you wont have to use the internal microphone pad, but you should carefully  
trim down the console mic input sections, just to make sure that you still have sufficient headroom at all times.  
A More Complex Pickup:  
Another common technique is to focus the pickup by micing both the hi-hat and snare drum individually. The additional  
microphones are often added to provide more sonic choices during mixdown.  
Micing the Hi-hat:  
Micing the Hi-hat and Cymbals:  
Figure 6 shows a view of the hi-hat set. Note that the two  
cymbals have room to pivot slightly about their suspension  
points, as indicated by the curved lines, and the mic must  
be outside this range. Avoid placing the mic along the edge  
of the cymbals in their rest position, since this may pro-  
duce some strange sounding cancellations. The micro-  
phone should be placed above the hi-hat set as shown, and  
it should always be located on the side away from the  
drummer. We recommend a small format condenser car-  
dioid because of its ability to pick up fast transient respons-  
es in the high frequency range. The C1000S, C391B or  
C480 B-CK61 will work nicely. Any of the Blue Line car-  
dioids will work nicely, as will the new C430 or C451 B.  
The D550 or D660 can also be used on the hi-hat.  
Figure 6  
Micing the Snare Drum:  
Figure 7 shows a small instrument microphone attached  
to the rim of the drum. This microphone is small enough  
that it goes virtually unnoticed by the drummer, and yet picks up the sound of the drum accurately. The AKG MicroMic model  
C418 is ideal for this application. The C418 is a very small  
condenser model with a 1% overload point at 131 dB, more  
than enough for the job. Its sensitivity is 4 mV/ Pa, so it will  
Micing the Snare Drum and Toms:  
need little further padding to prevent overloading the con-  
soles input section. Its low frequency response has been  
gently rolled off in the far-field so that close-in pickup will  
be natural through the boosting of bass frequencies caused  
by close micing (proximity effect). There is also a broad  
high frequency boost in the 10 to 15 kHz range for added  
presence in complex musical passages. The C418 was  
designed specifically for percussion instrument micing.  
However, some condensers may not be able to handle the  
high sound pressures produced by drums. For this reason,  
dynamic microphones such as the D440, D660 or D770  
are often used. A second microphone on the bottom head  
will add a new dimension to your snare sounds. But,  
remember that you must reverse the phase of the bottom  
mic because the bottom head travels outward as the top  
head is driven inward.  
As with all other mics used with the drum set, mount it on  
the far side, away from the drummer, and make absolutely  
sure that it is in a position so that there is never a chance  
Figure 7  
that the drummer will accidentally strike it while playing.  
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Putting it on Tape:  
Our microphone count is now up to six, so if you are tracking, lay down one mic per tape track, again, without processing.  
In your monitor mix, or if you are making a direct-to-stereo recording, carefully pan the two new elements into the stereo  
soundstage at positions that match their actual positions in the drum set as seen from the front.  
Going for Broke -- Micing the Whole Set:  
Occasionally you will come across a job where the producer and drummer want everything to be miced. This is fairly com-  
monplace in high-level music reinforcement, where musical details can get lost in large performance venues. In recording,  
it doesnt happen that often, but may be needed for an extended solo passage where drums will be added later.  
The normal procedure here is to lay down a so-called “scratch track,” which is played by the drummer and is used for sync  
purposes later. It will not appear in the final mix. Then, either on spare tracks or on another tape machine running in sync,  
the drummer will play alone in the studio with a suitable monitor mix on phones. The studio will normally be bare, and addi-  
tional spot mics will be placed on the cymbals (three mics) and on the toms (three mics). Mic the toms as you did the snare.  
The studio will normally be adjusted to be somewhat more live than usual, and additional mics (perhaps four more) will be  
used to pick up room sound. These “house” mics can be dynamics or condensers. Finally, another OH stereo pair will be  
placed another 2 feet or so above the basic OH pair.  
With the drum set we have been using here, this will bring the total mic (and track) count up to 18:  
1. Primary OH pair:  
2. Secondary OH pair:  
3. Cymbals:  
4. Toms:  
5. Hi-hat:  
6. Snare:  
7. Kick drum:  
8. Room mics:  
2
2
3
3
1
1
2
4
Note that there are four stereo pair here: two OH pairs and two house pairs. The definition of a stereo pair is this: if you  
pull up only a stereo pair, panning it left and right, you will hear a continuum of sound along the stereo stage from left to  
right. These are vital ingredients and cannot be concocted later on from any of the mono tracks you have laid down. They  
will come in very handy later on in the mixing process.  
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The setup, as we have described it, is shown in  
Figure 8A and B. Do we have to stop here?  
Obviously not; we can add as many mics as we  
have remaining tracks. Another useful one to  
add would be a cardioid looking down on the  
head of the snare at a distance of about 8 to 10  
inches -- but far enough back so as not to both-  
er the drummer.  
Global micing in a live studio, front view:  
Can We Subgroup to Save Tape Tracks:  
Yes, if you proceed very carefully and think out  
the whole process. Remember, stereo pairs of  
channels are the best way to subgroup. For  
example, if you anticipate a shortage of tape  
tracks, you could sub-mix the three mics on  
cymbals, thus picking up an extra track. The  
same could be done on the three toms, again  
picking up a track.  
In doing this, you might think of the cymbal  
stereo pair and tom stereo pair as “layers” that  
you can later add to the basic mix. But before  
you commit to this, make sure that the drum-  
mer and producer hear exactly what you intend  
to do, and that they agree!  
Figure 8A  
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Global micing in a live studio, plan view:  
Figure 8B  
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The Microphones we Recommend:  
We will show you the basic response curves and directional data for the microphones recommended in this White Paper.  
They have all earned their merits in studios throughout the world. Good drumming and good micing!  
D440  
D550  
Frequency Range: 60Hz to 20kHz  
Polar Pattern: Cardioid  
Frequency Range: 20Hz to 20kHz  
Polar Pattern: Cardioid  
Sensitivity: 2.5mV/ Pa (–52dBV re 1V/ Pa)  
Equivalent Noise Level: 18dB-A (DIN45412)  
Electrical impedance: 600Ω  
Recommended load impedance: 2,000Ω  
Maximum SPL for 1% THD: 147dB SPL  
Size: 3.35x4.09x1.81 in. (85x104x46mm)  
Net Weight: 5.2 oz. (148g)  
Sensitivity: 2.5mV/ Pa (–52dBV re 1V/ Pa
Equivalent Noise Level: 18dB-A (DIN45
Electrical impedance: 600Ω  
Recommended load impedance: 2,00
Maximum SPL for 1% THD: 147dB SPL  
Size: 4.76x4.09x1.81 in. (121x104x46mm)  
Net Weight: 7.2 oz. (203g)  
D770  
D660S  
Frequency Range: 60Hz to 20kHz  
Frequency Range: 70Hz to 20kHz  
Polar Pattern: Hypercardioid  
Polar Pattern: Cardioid  
Sensitivity: 1.8mV/ Pa (–75dBV)  
Equivalent Noise Level: 22dB-A (DIN45412)  
Electrical impedance: 600Ω  
Recommended load impedance: 2,000Ω  
Maximum SPL for 1% THD: 147dB SPL  
Size: 7.13x1.97 in. (181x50mm)  
Net Weight: 10.4 oz. (295g)  
Sensitivity: 2.0mV/ Pa (–54dBV)  
Equivalent Noise Level: 20dB-A (DIN45412)  
Electrical impedance: 500Ω  
Recommended load impedance: 1,200Ω  
Maximum SPL for 1% THD: 140dB SPL  
Size: 7.13x1.97 in. (181x50mm)  
Net Weight: 8.5 oz. (240g)  
D880/ D880S  
Frequency response: 60 to 20 kHz (20 to 20 kHz @ 1  
cm)  
Polar pattern: Supercardioid  
Sensitivity: 2.5 mV/ Pa: (-52 dB re 1 V/ Pa)  
Equivalent Noise Level: 22dB-A (DIN45412)  
Electrical Impedance: 600Ω  
Recommended load impedance: 2000 Ω  
Output connector: 3-pin male XLR  
Maximum SPL for 1% THD: 147dB SPL  
Size: 7.13x1.97 in. (181x50mm)  
Net weight: D880: 10.4 oz (295g)  
D880S: 10.5 oz. (298g)  
10  
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D112  
C418  
Frequency Range: 20Hz to 17kHz  
Polar Pattern: cardioid  
Frequency Range: 50Hz to 20kHz  
Polar Pattern: hypercardioid  
Sensitivity: 2.5mV/ Pa  
Sensitivity: 1.8mV/ Pa (–75dBV)  
Equivalent Noise Level: 73dB (A)  
Electrical Impedance: 210Ω  
Recommended load impedance: 600Ω  
Maximum SPL for 0.5% THD: Outside  
measurement range  
Equivalent Noise Level: 34dB-A (DIN45412)  
Electrical Impedance: 200Ω  
Recommended load impedance: 1,000Ω  
Maximum SPL for 1% THD: 131dB  
Size: 5.9x2.8x4.5 in. (150x70x115mm)  
Net Weight: 13.4 oz. (380g)  
Power Requirement: 9–52V  
Size: 3x1.4 in. (75x35mm) including clamp  
Net Weight: 2.3 oz. (62g)  
C480B  
C1000S  
Frequency Range: 20Hz to 20kHz  
Polar Pattern: cardioid  
Frequency Range: 50Hz to 20kHz  
Polar Patterns: cardioid, hypercardioid with PPC 1000  
mounted  
Sensitivity: 40/ 20/ 6.3mV/ Pa (-28/ -34/ -44dBV)  
Equivalent Noise Level: 13/ 11/ 17dB-A  
Electrical Impedance: 150Ω  
Recommended load impedance: >2,000Ω  
Maximum SPL for 1% THD: 134/ 140/ 144dB  
Power Requirement: 48V phantom power to DIN 45596  
Size: 0.8x6.9 in. (21x173mm)  
Sensitivity: 6mV/ Pa (–44.4dBV)  
Equivalent Noise Level: 21dB-A  
Electrical Impedance: 200Ω  
Recommended load impedance: 2,000Ω  
Maximum SPL for 1% THD: 137dB  
Power Requirement: 9–52V (acc. to DIN 45596)  
or internal 9 V battery)  
Net Weight: 4.9 oz. (140g)  
Size: 1.3x8.6 in. (34x220mm)  
Net Weight: 11.3 oz. (320g)  
with PPC 1000 attached  
11  
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AKG Acoustics, U.S. • 914 Airpark Center Drive • Nashville • TN 37217 • Tel: (615) 620-3800 • Fax: (615) 620-3875  
Visit our Web Site at www.akg.com  
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