Sterling ST69 - RecordingHacks
ST69
CLASS-A TUBE CONDENSER MICROPHONE
Sterling Audio’s ST69 Tube Microphone is an excellent choice for recording
engineers and musicians looking for a superior studio microphone. A combination of
new and traditional technology, blended with our Disk Resonator™ system, yields
wide frequency response and quick transient response without sacrificing warmth
and tone. It’s ideal for capturing the full, detailed sound of vocals, acoustic & electric
instruments, and drums. And its precision machined, brushed stainless-steel finish
complements the ST69’s technical brilliance.
FEATURES
• Cardioid, Omni, and Figure-8 patterns
• Low noise, low heat, 6205 tube circuit
• Double-sided 1” all brass capsule,
hand assembled and oven baked
for long term stable operation
• Ultra-thin 3-micron gold-evaporated
Mylar diaphragm provides sonic detail
and accuracy
• Disk Resonator™ design extends
high-frequencies naturally
• High pass filter and -10dB pad
• Custom-wound nickel core output
transformer, optimized for the ST69
• Brushed stainless steel body and head
Includes:
• Metal covered, padded carrying case
• SM-4 silver shock mount
• 7-pin XLR cable
• STPSM1 low noise tube power supply
product SPECifications
Preamp Class-A Tube
Polar Patterns
Cardioid, Omni, Figure-8
Frequency Response
20Hz - 20kHz
High Pass Filter
Switchable 75Hz, 12dB/octave
Attenuation Pad
Switchable -10dB
Sensitivity30mV/Pa
Maximum SPL 130/140dB SPL
Equivalent Noise 23dB SPL
Typical Load Impedance >1000 Ohms
Output Source Impedance 200 Ohms, transformer isolated
Dimensions 7.5” long, 1.8” max. diameter
Weight 1.2 lbs.
Power Included power supply
Copyright © 2010 Sterling Audio
www.sterlingaudio.net
K
Frequency Response and Polar Patterns
st69 cardioid
+20
MAGNITUDE dB
+10
30°
+5 dB
-5 dB
60°
-10 dB
0
-15 dB
-20 dB
90°
-10
120°
-20
150°
180°
20
100
50
200
500
1K
2K
5K
10K
20K
125
250
FREQUENCY Hz
+5 dB
30°
30°
30°
-5 dB
60°
60°
-10 dB
-10 dB
-15 dB
-15 dB
-20 dB
-20 dB
90°
120°
120°
120°
150° 150°
180°
5K
2K
10K 5K
20K 10K
125
20K
250
60° 60°
90°
150°
+5 dB
30°
30°
-5 dB
60°
90°
+5 dB
125 500
2501000
90°
90°
120° 120°
150°
30°
-5 dB
-5 dB
-10 dB
-15 dB
-15 dB
-20 dB
-20 dB
30°
60°
90°
60°
90°
120°
90°
120°
150°
150°
180°
2500
5000
+5 dB
60°
-10 dB
150°
180°
500
1000
30°
2500
10000
5000
15000
120°
150°
180°
10000
15000
Copyright © 2010 Sterling Audio
www.sterlingaudio.net
1
1K
Frequency Response and Polar Patterns
st69 figure-8
+20
MAGNITUDE dB
+10
30°
+5 dB
-5 dB
0
60°
-10 dB
-15 dB
-20 dB
90°
-10
120°
-20
150°
180°
20
100
50
200
500
1K
2K
5K
10K
20K
FREQUENCY Hz
+5 dB
30°
30°
30°
-5 dB
60°
60°
-10 dB
-10 dB
-15 dB
-15 dB
-20 dB
-20 dB
90°
120°
120°
120°
150° 150°
180°
5K
2K
10K 5K
20K 10K
20K
125
250
60° 60°
90°
150°
+5 dB
30°
30°
-5 dB
60°
90°
+5 dB
125500
250
1000
90°
90°
120° 120°
150°
-5 dB
-5 dB
-10 dB
-15 dB
-15 dB
-20 dB
-20 dB
30°
60°
90°
60°
90°
120°
90°
120°
150° 150°
180°
2500
5000
+5 dB
60°
-10 dB
150°
180°
500
1000
30° 30°
2500
10000
5000
15000
125
250
120°
150°
180°
10000
15000
Copyright © 2010 Sterling Audio
www.sterlingaudio.net
1K
Frequency Response and Polar Patterns
st69 omni
+20
MAGNITUDE dB
+10
30°
+5 dB
-5 dB
0
60°
-10 dB
-15 dB
-20 dB
90°
-10
120°
-20
150°
180°
20
100
50
200
500
1K
2K
5K
10K
FREQUENCY Hz
+5 dB
30°
30°
-5 dB
-5 dB
-10 dB
60°
-10 dB
60°
60°
-15 dB
-15 dB
-20 dB
-20 dB
90°
90°
150° 150°
180°
10K5K
20K 10K
20K
125
250
60° 60°
120°
150°
125500
250
1000
+5 dB
30°
30°
90°
120°
120°
2K
5K
+5 dB
30°
90°
90°
-5 dB
60°
-10 dB
-15 dB
-15 dB
-20 dB
-20 dB
90°
2500
5000
90°
120°
120°
150° 150°
180°
500
1000
60°
90°
120°
2500
10000
5000
15000
125
250
30°
-5 dB
150°
180°
+5 dB
-10 dB
60°
120° 120°
150°
30° 30°
20K
150°
180°
10000
15000
Copyright © 2010 Sterling Audio
www.sterlingaudio.net
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