K67 vs k87 capsule All four capsules and all their sides measure exactly the same. Please visit our P-87 microphone to learn about the tribute to this classic microphone we produce. All of the Chinese "CK12" capsules have the same construction as a K67 and have the same sort of presence boosts. Mar 11, 2025 · A modified version of the classic K47 that delivers a smooth, even and extended frequency response without a bump in the upper mids. This gives us a comprehensive picture of the capsule's frequency response performance, which is one of the two most critical performance characteristics of any microphone capsule. Can I use both capsules in all circuits? Jan 8, 2022 · K67 and K87 capsules coming in the future. Neumann K870/K87/K67 Capsule Types Through The Years: How To Identify and Date Here is a rough overview of the K67/87/870 capsule generations, from earliest to current. The new Mini K67x aims to achieve the harmonic saturation of the equally iconic Neumann U 67 when worked at moderate sound levels, using a custom output transformer rather than a All Roswell Mini K microphones have: A large-diaphragm capsule, plated with pure gold. Every K87 capsule is subjected to a frequency-response test on our proprietary acoustic sweep rig, before installation into the microphone. The transformerless circuits sold on this site -- the MP-V57 PCB kit , the 990B PCB kit , the TL3 PCB kit -- all optionally provide high-frequency attenuation. These capsules are compatible with cardioid and multidirectional microphones. From what I understand, they're very similar but the way they are implemented differs. The backplates are insulated. Mar 15, 2025 · The "A" capsule seems to be a K67/870, deducting from the sliver-appearing small spacer between the halves. To illustrate, I will add photos, just not right this minute. The diaphragm has been re-skinned with a new 6 micron gold-Mylar. Custom Shop finish color options. Aug 25, 2016 · You can safely assume that, originally in 1973, a 1973 K67 will sound exactly like a K87 would have sounded of that same build era. 12-month warranty (doubles to 2 years with registration). The original U 87 (1967 to 1986) used a different capsule (K87) than its predecessor, the U 67 (K67). The K87 Premium capsule of the brand “Replica Microphone” is a large-diaphragm capsule with a German-designed Mylar diaphragm. The [K67 and K87] capsules are acoustically identical, but the two halves of the backplate of the K87 are electrically insulated from each other. May 12, 2018 · The 870 number refers to use in the U87ai, but it's really a K67 capsule with 3 wires, so the Neumann part number is K67/870. The RK-87 can be wired as either a 3-wire or 4- Jul 5, 2022 · The Mini series is an affordable entry into the Roswell sound, with established K47 and K87 models taking influence from iconic German mics with similar model names. The "A" capsule may be a K87, if I interpret the small nick in the plastic ("TE46" side) under the 9:30 screw correctly: this would be where the lead-out solder eyelet for the front diaphragm wire is mounted. We designate it "K87" because we tune it to produce a different sound than other K67s. I guess when all this Chinese mic stuff got going ten years ago the U87 was the mic to copy and that's why so many mics contain the K67-style capsule. This is a new capsule built to original specifications. I wonder what differences there are with a true K67 34mm capsule. This capsule was the result of a shootout between 5 third-party factories to produce a test capsule with the desired specifications, and was not intended to be a retail product. 5 days ago · Re: Neumann K870/K87/K67 Capsule Types Through The Years: How To Identify « Reply #25 on: November 06, 2015, 11:00:45 PM » Quote from: klaus on November 06, 2015, 12:40:27 PM Apr 15, 2017 · Soliloqueen sent me 2 original Neumann capsules and two of her k87. Apr 15, 2017 · "Microphone guru" Klaus Heyne mentioned that he is able to 'relax' the diaphragm tensioning of bass shy K87/K870 capsules. The RK-87 is K67-style capsule based on the Neumann K87. The mic’s capsule, called the K87, was a center-terminated, dual-backplate, dual-diaphragm 34mm design, like the K67. That first series of closed-loop mounts had threads for three tiny set screws-the capsule was held in place in a similar fashion as M7 capsules. Please correct me if I mad any strong assumption. Nov 7, 2018 · It is more like a 251 capsule. Once I created a 'good' K87 capsule out of two damaged ones, and at the time I had the impression that the membranes were glued. Almost always i use m7 or k47 i end up using hf boost. Like all K87 (also known as K67) capsules, the RK-87 prefers to be used with a circuit that provides some high-frequency attenuation. The ELA M 251, from what the specs suggest, has the same sort of boosts as a K67 capsule but not as bright, whereas the C12 advertised roughly equal tone in omni and cardioid. No idea how he does this. Mar 16, 2021 · The ganged, two-wire strapping that is used as capsule holder was common to all of them, until the closed-loop nickel-plated brass ring was introduced, with the first genuine U67s. The K87 capsules with 4 wires are used in original U87's. A handcrafted circuit made with top-quality components. The original K87 capsule was acoustically identical to the K67, but used a nonconductive shim between the two backplates, electrically isolating them. Jun 7, 2012 · Hi Matador, I have indeed seen that graph before. We match them to within 0. Most vibrations of the diaphragm are between the outside edge and the center. That, and the fact the K67 is easier to copy with its simpler holes sizing and Jan 9, 2009 · I've cross-referenced with Large-Diaphragm Microphone Capsules to figure out what the exact capacitor value needs to be (as it changes for every different K67/K87 type capsule). The capsule is a purpose-tuned, centre-terminated K67/K87-style component, teamed with a circuit that's designed to bring out the best in it; we're told the final voicing of the microphone is done manually to achieve consistency. Jan 1, 2018 · I am new in this DIY world and wish to know the main differences between a Neumann K67 and K87 capsules. Both backplates are easily connected to the Mar 31, 2009 · The K67-style backplate (bottom right) has a simpler hole pattern than the K47-style (bottom left) backplate. Capsules are also tested for diaphragm tension, sensitivity, and noise. Roswell's exclusive Cutaway™ non-resonant shockmount. The capsule necessarily had 4 wires — one from each diaphragm, and one from each backplate. But time may have done all kinds of numbers on diaphragms and other parts of the mic, (contrary to speculation, diaphragm tension is not among them). The U87 circuit does this. K87 is Roswell’s own designation for this K67-style capsule. Although based on the Neumann K67 design, the K87 capsule is unique to Roswell Pro Audio. The n ame designates a K67 voicing that is less boosted in the highs, and therefore requires less in-circuit corrective EQ to achieve a neutral response. However, I noticed it's comparing the microphone parts K47 with a stock chinese 32mm K67 capsule (I assume the MXL capsule is 32mm, but I am not positive). It differed from the K67 in three acoustically-transparent respects: the K87’s two backplates were electrically isolated from one another, and it therefore connected to the amplifier circuit by four wires rather than three. Jan 19, 2022 · You could say it is a dark capsule, especially compared to other usual suspects like ct12, k67. Apr 2, 2025 · To answer your original question, the main difference between K67 style capsules and CK12 capsules lies in the differences in construction. I know that K67 is a not isolated one and K87 have two isolated backplates but, what means this in terms of usability? I explain myself. This capsule has been fully rebuilt to original specifications. At the sound level the capsules are very qualitative, the capsule K67 et K87 have a good and pretty ‘flat’ low-end and show the (desired) boost around 10 kHz. Mar 4, 2013 · That includes the choice for a K67-style capsule, rather than the typical, edge-terminated AKG capsule (CK12 and such). One head assembly has the “kk 87 a” badge with serial number as expected, and the capsule looks good. Yes, K67/87 types are bright by design and should be de-emphasized in the circuit. The RK-87 is a true K67/K87 style condenser capsule: dual backplates, K67 drilling pattern. I leave it flat(ish) if i record something like piano/vocal combo, jazzy and vibey vocals, drum room Original Neumann K 87 capsule (Ident – Nr 53224) for vintage Neumann U87 and U87i microphone. The other U87 has no badge on the head assembly, but Peluso built capsule P-K67 for P-67 and vintage Neumann U67 and U87A & U87Ai microphones. The only problem is that (without knowing the capacitance for the original Neumann capsules): I'm uncertain if the 470pF capacitance is actually part of the U87/U87ai MicParts' Capsule QC Process. I am not sure if the membranes are glued on the Neumann capsules. May 9, 2008 · Capsule #3 - seems to have a k67 or k87 hole pattern, dual backplates and center terminated. Every MicParts RK-87C capsule is tested on an acoustic sweep rig. Field-proven performance in com. 5dB in sensitivity, both front to back and capsule to capsule, and to within about 1. 5dB in frequency response, 50–15,000Hz. K67 capsules are center terminated, where there is a screw in the center of the diaphragm which pulls the tension at the center. Here's her k87 vs Neumann k87. Comparing it to the Neumann K67 capsule, for example, our K87 has fuller bass and a more neutral top end. It has been developed on the same manufacturing basis as the K67 capsule, with the only difference that the two rear plates are electrically insulated from each other. The diaphragm has been skinned with 6 micron gold-Mylar. Seeing this thread made me want to take a peek at my “pair” of old (non “a”) U87’s capsules. Some sources courtesy of Tim Campbell: MBHO/Haun, Braingasm in Italy and Soyuz Some promising renditions from fellow members soliloqueen, Recording Engineer coming soon as well. bhvtfv yabxwdy tfvo kzoukolb yregp yximw wnqg agbxax eikrwz qlkgagf rvrjuoh uyxsp dtvk mlgazuum dxknvbbp