Demo Mic Sale

It's time to clear out the warehouse of prototypes, custom mic builds, b-stock, and refurbs! Everything here is discounted well below its value.

The letters A-Z were arbitrarily assigned for the sole purpose of identifying which mic goes with which photo(s).

These mics can be shipped within the 50 US states only. Each mic has a 45-day warranty.

Small Diaphragm

Mic L and Mic N are MicParts SDC-84 ($499), with ultra low-noise JFETs. They ship with a zipper pouch and isolation mount. These mics might have minor cosmetic blemishes.

Mic M is a Snare Mic ($499), built into a first-generation mic body. It ships in a zipper pouch with an isolation mount. The mic might have cosmetic blemishes.

Medium Diaphragm

Mic D is an Audio-Technica AT3035, which we purchased via Ebay. Our AT3035 mod kit retains the stock medium-diaphragm capsule, but replaces the entire circuit with a variant of our EXF1. It is a transformer-coupled, single stage JFET circuit based on Neumann's KM84 design. The mod kit retains the mic's pad and filter features, which are controlled via two small switches on the rear of the mic body. Value: $80 for the donor mic, $149 for the circuit mod kit, $125 for labor = $354. The mic includes its original Audio-Technica shockmount. 

Mic E is a brand new S-25 ($349) which we built to confirm that a new batch of PCBs was made to spec. It includes a robust swivel mount and plastic clamshell storage case. Note: this mic is compatible with this shockmount.

Mic K is a Focusrite Scarlett Studio, upgraded with the EXF1 circuit and TSB2555 capsule. Functionally, this is identical to our T-25 Microphone ($339). We include a swivel mount and zipper pouch. Note: this mic is compatible with this shockmount.

Mic Q is a prototype T-25 microphone ($339), built into a first-generation mic body with a silver finish and silkscreened logo (before we made MP badges). It has a chrome C12 style grille. It includes a swivel mount and plastic clamshell case. 

Mic R is an old prototype S-25 microphone ($349) built into a first-generation mic body with a silver finish. The end cap is black. The mic includes a swivel mount and plastic clamshell case.

Mic V is a modified Apex 435 with our ETL1 circuit and TSB-2555 capsule; it is essentially the same as the MicParts S-25 ($349) in 3rd-party mic body. It includes a silver swivel mount.

Large Diaphragm

Mics A, B, and C are Studio Projects C1, of varying generations. Please note: All three mics have our "MP" diamond logo badge, applied after photos were taken.

• Mic A is a first-generation C1 (cobranded 797 Audio), with no switches. This mic is in excellent cosmetic condition. It has an early version of what would later be called our "Platinum" edition circuit mod, which is a $299 service.
• Mic B is a 797 Audio C1 with a single switch to enable either pad or HPF. The mic has minor scratches on the body. The circuit includes our "U87 EQ" circuit mod; the mic has been tuned by hand. We also rebuilt the input circuit to direct-couple the capsule to the circuit, which provides a cleaner audio signal path at a critical point of the circuit. Value: $160 for the donor mic + $199 for the upgrade = $349 (a bargain for a mic that goes head to head with a $3500 U87).
• Mic C is a third-generation Red Badge C1 with two switches (3-way pad switch, separate 3-way HPF switch). The mic has minor scratches on the body. The circuit includes our "U87 EQ" circuit mod; the mic has been tuned by hand. We have also upgraded all the electrolytic capacitors to our own bespoke audio-grade capacitors.

Mic F is a brand new MicParts Multitrack Microphone ($1299); it includes a Y-cable to split the mic's 5-pin output to two XLR3M connectors for plugging in to two preamps or two interface channels. (You could optionally upgrade to our hand-built Gotham/Neutrik Y-cable.) The Multitrack Mic allows recording the front and rear sides of the mic simultaneously to 2 tracks, which enables you to create any polar pattern (Omni, Cardioid, Fig8 or any intermediate pattern) for that performance later, during the mix process. This mic is finished in a beautiful custom blue metallic powdercoat. This discounted bundle deal does not include a shockmount; the compatible mount is not normally sold separately, although if you order this Cutaway mount with the mic, we'll supply the version of the Cutaway mount that is actually compatible with this mic. 

Mic G is a Groove Tubes GT55 modified with the T84-55 circuit kit and an RK-47C capsule. The mic's pad and filter switches are supported by the new circuit. Value: $125 for the donor mic, $229 for the circuit kit, $99 for the capsule, $125 for the build, $69 for the bundled Cutaway shockmount = $647. Included: zipper pouch, Cutaway shockmount. This mic is essentially identical to our T-47 ($599), with external switches for pad and filter rather than internal switches for pad and Omni. This mic has 2.5dB lower output than the other GT55/RK-47 mic in this sale; if you compensate for the level delta via preamp gain, these two mics would be matched (meaning the frequency response is within 1dB from 20 Hz - 20kHz once you add 2.5dB of gain to this mic). 

Mic H is a new MXL CR78. We gutted the mic and installed our high-performance MP-V57 transformerless circuit and a special RK-12 capsule reserved from an early production run, circa 2016. The mic has an internal pad switch. Value: $38 for the donor mic, $149 for the circuit, $129 for the capsule, $125 for the build = $441. The mic ships in original CR78 packaging with an MXL swivel mount. If you'd like to upgrade the mic's mount, this mic is compatible with this shockmount. 

Mic J is a new MicParts T-12 ($599), built to verify a new production run of PCBs. It has internal switches for pad and pattern (cardioid/omni). The mic has minor cosmetic blemishes (light scratches) on the end cap at the bottom of the mic. It ships in a zipper pouch with a swivel mount. If you'd like to upgrade the mic's mount, this mic is compatible with this shockmount. 

Mic P is an MXL V67 "Heritage Edition" with our T-84 circuit kit and a special RK-12 capsule reserved from an early production run, circa 2016. The mic has an internal pad switch. It is essentially a Cardioid-only version of the T-12 ($599) in an MXL mic body. It ships with the original MXL clamshell storage case, shockmount, and chrome pop filter (pictured here). Value: $140 for the donor mic/mount/case, $229 for the circuit, $129 for the capsule, $125 for the build = $623.

Mic S is a MicParts S3 with the K67D capsule used in the T-67 kits. This capsule is not currently sold separately; it is unique among all K67s we've ever heard or tested in that it does not need in-circuit EQ. Said another way, this capsule retains the generally neutral voicing that the K67 is known for, but unlike every other K67 capsule, it is not too bright when used on circuits with a linear frequency response. The bass response is tight and predictable, not wooly or overbearing. The mic's response is within 1dB of flat up to 8kHz; the presence boost peaks at +1.5dB just above 10kHz, above which is a gradual rolloff. For comparison: typical Chinese LDCs have a high-frequency peak of +4 to +6dB; which is why those mics sound bright and harsh. The S3 circuit contains a socketed EQ capacitor that you can change to a larger value if you wish to darken the top end of the mic's response. Changing this EQ cap does not require soldering; just plug in any value of up to 1000pF (although practically speaking anything larger than ~330pF will be too dark because the mic isn't bright right now). This mic uses the first-generation S3 metalwork with a painted 'micparts' logo; see photo. It ships in a plastic clamshell storage case (which might show signs of wear) with an elastic shockmount. Comparable value: the S3-87 costs $699.

Mic T is a one-off custom that combines our high-performance V57 transformerless circuit with an RK-12 capsule. The circuit has a pad switch, located inside the mic. The circuit's response is linear, which means it retains all the "air" generated by the capsule. The frequency response is very smooth, within 1.4dB up to 14kHz! This mic has high output, so it will excel on voices and acoustic guitar but won't be happy on loud cabinets or drum overheads (although it does have a pad switch, so it should work on moderately loud sources). It would make a great VO mic due to the very low noise floor.  This is basically our S-12 ($579) in a smaller mic body. It ships with a zipper pouch and heavy duty swivel mount. The body has minor cosmetic blemishes.

Mic W and Mic X are 3-pattern mics with one of our earliest circuit upgrade kits, called the "Linear 87." The circuit and transformer were designed by Samar Audio. Mark from Samar manufactured these transformers, specifically for this circuit. The mic bodies have been powdercoated in a textured matte black finish, which might have some rub or wear marks. A switch on the front of the mic controls pattern (cardioid, omni, fig8). Two switches on the rear control the pad and HPF. Mic W has our exclusive K67D capsule (from the T-67 kit). Mic X has an RK-12 capsule. You could think of these as multi-pattern versions of the T-67 ($599) and T-12 ($599) microphones. These mics do not include mounts, because we do not have any compatible mounts; try the Rycote USM-L. 

This chart shows the difference in frequency response for the two "Linear 87" mics, compared to a typical Chinese mic and a Neumann U87. The U87 has the thinnest low end of the bunch. The Chinese mic has the rising/hyped/harsh high frequency response typical of cheap condenser mics (+4dB @ 10kHz). Both these L87 mics are fantastic on vocals, with rich harmonics, a very slight scoop (-1dB) in the 5-7kHz range to reduce sibilance, and a very smooth top end. Mic X (RK-12) has fuller bass. Mic W (K67D) has tighter bass and more extended, airy top end.

Mic Y was a Sterling ST77, although the only parts of the original mic that remain are the body and chassis. We've replaced the capsule with our exclusive K67, and the circuit with our T-84 (based on the Neumann KM84), using our custom transformer. The grille is our own tapered 60mm design, significantly more attractive than the stock grille which is ridiculously tall. The finished mic will be great for VO, vocals, acoustic guitar, any acoustic strings. The mic has a flat response (within 1dB) to 8.5kHz, with a gentle lift centered at 10kHz (peaking at +1.7dB). This mic does not include a shockmount; the compatible mount is not normally sold separately, although if you order this Cutaway mount with the mic, we'll supply the version of the Cutaway mount that is actually compatible with this mic. This mic is essentially our T-67 ($599) without the omni pattern switch, in a larger housing. The donor mic was purchased used, and shows signs of heavy wear; if we were keeping it we'd repaint it.

Mic Z is a Groove Tubes GT55 modified with the T84-55 circuit kit and an RK-47C capsule. The mic's pad and filter switches are supported by the new circuit. Value: $125 for the donor mic, $229 for the circuit kit, $99 for the capsule, $125 for the build, $69 for the bundled Cutaway shockmount = $647. Included: zipper pouch, Cutaway shockmount. This mic is essentially identical to our T-47 ($599), with external switches for pad and filter rather than internal switches for pad and Omni. This mic has 2.5dB higher output than the other GT55/RK-47 mic in this sale (Mic G); if you compensate for the level delta via preamp gain, these two mics would be matched (meaning the frequency response is within 1dB from 20 Hz - 20kHz once you add 2.5dB of gain to this mic).