While users initially desired Neumann KM184s, they found the C451 B to be a workable compromise, particularly when addressing the mic's gain structure and EQ needs.

The Shure SM81, while different from the C451 B, is considered effective in appropriate contexts and is noted to be slightly less bright, providing another tonal option.

Older AKG C451 EB models are suggested for those seeking a slightly darker alternative to the modern C451 B, offering a different tonal character.

The AKG 460, rebuilt by a former AKG employee, is described as less bright than the C451 B and not as smooth as the Neumann KM84, offering a different tonal option.

DPA 4011 is highlighted for being as open and detailed as the C451 B but not as bright, making it suitable for a wider range of applications.

Josephson C42, known for its brighter tone, and AT4051b, with a slightly darker profile, are both praised for overhead use, avoiding peaks that cause cymbals to sound 'pingy.'

The Austrian Audio CC8, designed by ex-AKG engineers, is noted for being inspired by the AKG C451 B but slightly darker, allowing for EQ adjustments without harshness.

Described as brighter and more detailed than an SM57 and C414, but owners note significant tonal differences due to its small-diaphragm design.

Often contrasted with the Neumann KM84, noted for being brighter, making it suitable for darker jazz-type cymbals.

The Josephson e22 is praised for its low noise floor and smooth sound, excelling in settings that require high gain, like acoustic instruments.

The Audio-Technica AT4051b is recognized for its versatility across various sources like bass cabs, snare, toms, and woodwinds, providing a clean capture with a slightly darker tone.

The C451 B excels in capturing shimmer and air, particularly effective on jangly strumming parts pushed to the sides in a mix.

Preferred for darker-sounding piano miking with the lid removed to capture a unique bright texture.

Frequently used with a dynamic mic on snare drums for enhanced detail in ghost notes and brushes.

Positioning in an X/Y pattern was found beneficial for recording mandolins, suggesting the importance of experimenting with mic placement for best results.

Switching off the mic's high-pass filter in favor of using a high-pass on the preamp, while also using the mic's -10 dB pad, helps manage gain structure effectively.

The microphones are highly sensitive to placement and angle, requiring meticulous adjustment to achieve optimal sound, especially when recording mandolins and guitars.

Owners note a delicate balance between sounding honky and harsh, requiring careful EQ adjustments, notably around 120 and 400 Hz, to tame unwanted mids.

Owners have used C451s consistently for 50 years, highlighting its enduring reliability and suitability as a hi-hat mic.