Product Comparison: AKG C451 B vs Audix ADX51

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General Specifications
C451 B
About the Product
AKG C451B Cardioid small diaphragm condenser microphone this new mic is a performance/ price breakthrough. It has an acoustically identical version of the legendary Ck1 capsule that is permanently mounted. This combination can handle high output transients as well as subtle harmonics.
The ADX51 is a professional pre-polarized condenser microphone used for stage, studio, and broadcast applications. The ADX51 is known for its clear, accurate response and flexibility to handle close or distance miking for a wide variety of acoustic instruments.
Key Specs
Microphone Type
Polar Pattern
Minimum Frequency Response
20 Hz
40 Hz
Maximum Frequency Response
20 kHz
18 kHz
What customers say about "Key Specs"
AKG C451 B Condenser Microphone
  • Good quality of the sound played. Incredibly weighs very little.
  • I bought this to record acoustic guitars. It works very well for that application.
  • Great frequency response.
  • Excellent mic, clear, crisp, natural sound.
  • A very nice, crisp, clear microphone.
Audix ADX51 Condenser Microphone
  • The highs are crisp and extremely clear, no matter what symbol-type application you are using it for.
  • Great mic for acoustic guitar or overheads on drums.
  • Good clear highs and controlled low and mid-range.
  • Crystal clear sound and excellent build quality.
  • Quiet, relatively natural sounding. Highly recommended.
Size & Weight
6.3 in.
6.3 in.
0.75 in.
0.78 in.
0.75 in.
0.78 in.
0.29 lbs.
0.41 lbs.
Equivalent Noise Level
18 dBA
29 dBA
Maximum SPL
155 dB SPL
132 dB SPL
Output Impedance
200 Ω
100 Ω
Microphone Sensitivity
Power Options
+48V Phantom power required from mixer or inteface
+48V Phantom power required from mixer or inteface
Sound of legendary C451 EB + CK1 capsule from 1969, Impressive sound pressure level, Highly effective high-pass filter, Transformerless preamp and surface mount technology
Smooth accurate frequency response, Pad and Roll-off Switches, Black Electret GV Diaphragm
What customers say about "Features"
AKG C451 B Condenser Microphone
  • The quality of the sound is excellent.
  • This microphone is very good for guitars and vocals.
  • No self-noise. Stylish and sturdy.
  • The 20dB pad option is perfect for recording loud sources.
  • Good sound, very faithful.
Audix ADX51 Condenser Microphone
  • Impressive sensitivity. Amazing microphone.
  • Small, light, easily portable and easy to set up on a range of stands.
  • Very quiet, almost no hiss.
  • The recorded sound is crystal clear.
  • Excellent microphone. Sound and build quality are both superb.
Warranty / Certifications
Manufacturer Warranty
1 year(s)
1 year(s)
Other Information
575.00 $

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