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T.H.E. KA-04 Microphone Set - Used  From Other

Modular microphone design with striking clarity and ultra-musical texture!


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Sound Pure's dedication to pre-owned products is unprecedented in the industry. We are a small team of dedicated experts that buys, trades, and consigns. We are trusted by customers all over the world. Our curated collection, is thoroughly tested and inspected by some of the best in the business. Our inventory is constantly changing, ever-evolving, with some items sold before reaching the website. Looking for something specific? Have questions about this product's condition or history? Want more photos, or to simply chat with an expert who's had his hands on this actual piece? Contact us now.
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Manufacturer's Description from Other

KA-04 Modular Microphone Preamplifier

The KA-04 preamp can be used with 6 (six) other K-series capsules (see our Parts & Accessories section), each of which can be ordered as complete mics or individual capsules. Mics are also available as matched pairs for stereo recordings.

This is a true "state-of-THE-art" patented design and is generations ahead of most pre-amp assemblies. Construction utilizes hand-selected and matched components, low-noise metal film resistors and low-loss polyester capacitors with no electrolytics in the audio path path yielding amazingly low THD, low IMD and outstanding dynamic range. The electronics and actual PCB design include "Guard Ring Shielding", ensuring extremely low input load, high stability, low noise and a symmetrical transformerless high-capability Class "A"output as well as low dynamic output impedance.

This pre-amp body offers a true dynamic range from 1 μV to up to 18 Vpp into 10 K ohms 1 μV (input referred 20 to 20.000 Hz BW, RMS noise). This allows a lower input gain, reducing input noise, which makes the KA-04 electronics the perfect match for even the most discerning digital microphone preamplifiers. The low noise and high gain will simply amaze you, pulling the MOST from your existing recording chain, whether analog or digital.

The assembly is made with THE finest materials, using Teflon, Delrin and 24K gold plating where needed. Each one is rigorously is tested through multiple functional, burn-in and quality checks, before leaving our factory.

KR-2C Capsule (1/2" Cardioid)

The KR-2C capsule is a ½ inch design with a cardioid polar pattern and wide frequency response.This capsule is suitable for the close miking of piano, guitar amps, stringed and wind instruments in all standard recording and reinforcement applications. The KR-2C offers excellent (capture) characteristics for signals that are extremely dynamic - such as drums, percussion instruments and all overhead miking.These capsules can be obtained in "matched pairs" for stereo X-Y and ORTF recordings and their smooth, yet accurate, sonic response make these a concert-taper’s dream.The KR-2C capsule is a "true condenser" type, with self-noise that is measured at 12dBA (A-weighted). It offers extremely accurate signal transfer to any recording media. The wide dynamic range of this capsule allows normal use without an in-line pad. As always, we suggest regular use of a good shock- mount for he microphone body, creating immunity to floor vibrations and other mechanical rumble and interference. 

KR-33A (33m Cardioid)

After many years of experimenting with both large-diaphragm tube and FET assemblies, THE has come up with a marriage of tone and depth that captures the best of both worlds. This is a traditional (true-condenser) deep-math German/Russian design, specially modified for our pre-amp assembly to give that large and "important" traditional 33mm sound while retaining a lot of ambient "capture".Our 33 mm capsule is engineered to provide a midrange response specifically optimized for the voice. The resulting mic offers the "presence" that many recording engineers seek for a vocal or solo instrument track that cuts smoothly and can therefore can be soft-mixed throughout a recording.All this is combined with a modular design and fine 24Kgold plated finishing, resulting in an exceptionally expressive product for any professional recording.THE KR-33A capsule is the perfect "specialist" for a modern recording studio, providing outstanding sound with extremely low self-noise and high dynamic range characteristics. Combined with our KA-04 preamplifier, the self-noise goes below 9 dB-A and the maximum SPL goes to 140 dB without any attenuation!As always, we suggest regular use of a good shock- mount for he microphone body, creating immunity to floor vibrations and other mechanical rumble and interference.

KR-2W (1/2" Wide Carioid)

This capsules' sub-cardioid pattern, combined with a soft, low-cut shelf, pulls instruments forward even from far away; however, there is still generous ambience in the signal. The design eliminates the proximity-effect inherent in most standard cardioids and gives a true smooth low-frequency curve in any application.The KR-2W is a great wood and string-section mic that works well in the studio or in a great concert hall. It is directional, but still picks up ambience and overtones. It is able to work close in or high above and still be true


Other (Miscellanous Used/Vintage/Consign)

About Manufacturer

Here at Sound Pure we hand-select used and vintage pieces of gear for our inventory. Our used selection always reflects the high standards of quality and craftsmanship that we expect from all of our manufacturers.   We are a small team of dedicated experts, located in Durham, NC.  We buy, trade, and consign instruments that we truly believe in.  Because of this, we have developed a reputation of quality and trust with our customers, located all over the world.   Our best customers are the ones that truly understand our personal touch and commitment to everything we sell, and range from hobbyists and enthusiasts to some of the biggest names in the business.  Our passion bridges the products we love with the real relationships we develop with our customer - whether they are a lifelong musician, or they are just getting started on their musical journey but care about value, quality, and being treated right.  

We vigorously test everything we take in to ensure authenticity, functionality, and reliability.  We are supported by one of the most well-respected luthiers in the Southeast, guaranteeing products that come in are thoroughly vetted, and that products that go out our in premium, performance- ready shape.   We are so confident in our ability to provide the highest quality music equipment in the industry, we even invented our “Try Before You Buy” program where we can ship out a product before collecting actual payment. 

Sound Pure's inventory is constantly changing, ever-evolving, with some items sold before reaching the website.    Looking for something specific? Have questions about this product's condition or history?  Want more photos, or to simply chat with an expert who's had his hands on this actual piece of gear?  It is truly our pleasure to talk with our customers, please do contact us now.  



Directional pattern: Cardioid

Operation principle (transducer): Velocity

Sensitivity: 14  mV/Pa

Frequency response range: 50  -  20,000  Hz

Equivalent SPL Noise rated at CCIR 468-3:  24  dB

at dIN / IEC 651:  12  dB-A

S/N ratio rated at DIN / IEC at 1 Pa.:  82  dB-A

Max SPL for 0.5% THD: 134  dB SPL

Head Size: Ø 21.5 x 25 mm 


Directional pattern: Cardioid

Operation principle (transducer): Pressure-Gradient

Sensitivity: 11  mV/Pa

Frequency response range: 10  -  20,000  Hz

Equivalent SPL rated at CCIR 468-3: 22  dB

At DIN / IEC 651: 11  dB-A

S/N ratio rated at DIN / IEC at 1 Pa.: 83  dB-A

Max SPL for 0.5% THD: 136  dB-SPL

Size (capsule diameter): 33.0  mm


Directional pattern: Sub-Cardioid

Operation principle (transducer): Velocity

Sensitivity:  12  mV/Pa

Frequency response range: 50Hz - 20KHz

Equivalent SPL rated Noise at CCIR 468-3: 25 dB

at DIN / IEC 651: 13 dB-A

S/N ratio rated at DIN / IEC at 1 Pa.: 81 dB-A

Max SPL for 0.5% THD: 134 dB-SPL

Capacitance:  32 pF

Head Size: Ø 20,5 x 28 mmKR