Condenser Microphone Mod Service

Upgrade your signal path at the beginning!

Put an end to edginess, muddiness, noise, and thin, grainy, overly bright sound.

Do you have problems overdubbing? Things just get worse, and nothing sits right in the mix? It probably seems like there's not enough EQ in the world to fix it—and there isn't.

You can't solve the frequency response and performance problems of inexpensive microphones with EQ. Likewise, the problems can't be solved with replacement capsules, grille removal, or that slightly more expensive model—it's probably the same mic with a new paint job.

The only true solution is the replacement of the components that are the actual cause of the problems.

After modification, mixing your microphone tracks will be easier and the sound will be better, allowing you to focus on your project, instead of fighting with your microphone. If this sounds like what you've been looking for, you may ship your microphone to me for professional modification at your convenience.

Please contact me with any questions, and also visit my FAQ page.

The choice of professionals worldwide.

Music studio mixing console. John Bonnell Mic Mods, your source for professional premium electronics upgrades to studio microphones, preamps, and signal processors.

"WOW WOW WOW! This MXL V67G sounds absolutely fabulous and has got a very low noise floor! … Biggest bang for the buck—unbelievable. …"

—Michael Obst


Specialty Mods

Rode NT1000 Modified by John Bonnell.

Rode NT1000 mod—Perhaps the best all-around modded mic you can own. Extremely versatile with a neutral-warm sound. Put it in front of anything, and press record. Sounds equally great on male and female vocals, as well as violin, flute, sax, acoustic guitar, electric guitar amps, and drum overheads.

Rode NT2-A Modified by John Bonnell.

Rode K2 mod—A superb modded microphone. If you want that warm, deep, rich feeling of classic vocals, this will get the job done. Excellent on instruments, as well. Many have favorably compared my modified Rode K2 to the AKG C12. The modifications elevate it the top line microphone it was meant to be. The FET versions, NT2-A and NT2000, are equally excellent.

Rode NTK mod—A cross between the NT1000 capsule and the K2 circuit. Excellent all-around.

Schoeps mod—Many transformerless microphones are copied from Schoeps. Some use large diaphragm capsules, which real Schoeps mics do not, but it makes little difference in the overall character. With this mod, the mic comes very close to the real thing, full of all the life a truly professional microphone should have. Notable Schoeps copies include: MXL 603, MXL 990, MXL 991, Apex 185, Studio Projects C1, Rode NT1/NT2, MXL V63M, Avantone CK-40 (Stereo), Superlux S502 ORTF, etc., etc., there are literally too many identical mics to list.

U87 mod for select microphones—Following vintage Neumann schematics and design, and using difficult to source parts and Neumann specified values and tolerances, top-line performance is achieved. Low self-noise, higher output, serious life and character like that of the classic U87. Available for: MXL V67G, MXL 2001, ADK A-51, ADK S-51, Golden Age FC1, Golden Age FC3, CAD GXL3000, CAD Trion 6000, SE2000, Apex 420, Apex 430, Apex 480, T.Bone SC 450, Cascade M20U, MXL 3000.

U47 mod for select microphones—More of "in the style of the U47," rather than a strict clone, this is a complete circuit replacement, based on the U47. Jensen transformer, NOS 5840 tube, the best components throughout the mic, a signal path capacitor that will melt butter, and dual patterns, cardioid and omni, remotely controlled from the power supply. Available for: Nady 1050, Nady 1150, Apex 460, Avantone CV-12.

Golden Age Project (GAP) Pre-73 mod—An excellent copy of the Neve 1073 design, with low quality and incorrect stock components. It can be modded to be as close to an actual Neve as anyone could ever hope for.

Avoid costly DIY mistakes! Have your microphone professionally modified.


"…He wasn't just blowin' smoke—it sounds really good! The harshness and brittleness are gone, but the detail remains. Let me say it again—the NTK really sounds good!…"

—Don Francisco


Condenser Mic Repair Service

Is your condenser microphone silent, distorted, or otherwise non-functional?

Inquire with details of problem for an estimate.

Most problems such as static, noise, popping, or intermittent silence (cutting out), are typically caused by the same components I replace in a standard mod procedure. Sometimes more work is required. Very rarely does a capsule need replaced.

I can also usually repair and improve mics that have been modified by others, though this will entail an additional fee.

Turnaround time will necessarily be longer for atypical repairs.

Mic Mods:

ADK
A-51,
S-51,
A6,
SC-1,
SC-2,
SC-T
AKG
Perception (200,
220,
400,
420,
820),
C1000
Apex
180,
185,
190,
191,
415,
420,
430,
435,
460,
480,
520,
530,
540,
550,
580,
591
Audio-Technica
AT2020,
AT2021,
AT2035,
AT2050,
AT3035,
AT4021,
AT4022,
AT4031,
AT4033,
AT4040,
AT4041,
AT4047,
AT4049,
AT4050,
AT4051,
AT4053
Avantone
CK-1,
CK-6,
CK-7,
CV-12,
CV-28,
CK-40,
BV-1
Behringer
B-1,
B-5,
B-2,
B-2 Pro,
C-1,
C-2,
C-3,
C-4,
T-1,
T-47
Blue Microphones
Spark,
Bluebird,
Baby Bottle,
Mouse
CAD Audio
e70,
GXL1200,
GXL2200,
GXL2400,
GXL3000,
Trion 6000,
Trion 8000
Carvin
CTM100,
M90S
Cascade
M20U,
M39
Gauge
ECM-84,
ECM-87,
ECM-47
Golden Age Project
FC 1 MKII,
FC 2 ST,
FC 3,
FC 4,
FC 4 MC,
TC 1,
TC-3
M-Audio
Sputnik,
Solaris,
Luna,
Pulsar,
Nova
Monoprice
600700,
600800
MXL
190,
440,
441,
550,
551,
600,
603,
604,
606,
770,
840,
870,
880,
890,
909,
910,
920,
960,
990,
990 Stereo,
990s,
990XL,
991,
992,
993,
2001,
2003,
2006,
2010,
3000,
4000,
4000XL,
9000,
9090,
Genesis,
Gold 35,
MCA SP1,
MCA SP2,
Revelation,
V6,
V57M,
V63M,
V67G,
V67GS,
V67I,
V67I Tube,
V67N,
V67Q,
V69,
V77,
V88,
V89,
V177,
V250,
V900
Nady
SCM-800,
SCM-900,
SCM-960,
SCM-1000,
SCM-2090,
CM-90,
CM-95,
CM-100,
CM-2S,
TCM-1050,
TCM-1100,
TCM-1150
Oktava
MK-012,
MK-219,
MK-220,
MK-319
Rode
NT1,
NT2,
Classic,
NT1-A,
NT1000,
NT2-A,
NT2000,
NT3,
NT4,
NT5,
NT6,
NTG,
K2,
NTK,
NTV,
Classic II
SE Electronics
SE1000a,
SE2000,
SE2200,
SE4400,
Z5600,
SE1a,
SE2a,
SE3,
SE4,
SE5,
GM10,
T2,
Gemini 5,
Gemini II,
X1
Sterling Audio
ST31,
ST33,
ST44,
ST51,
ST55,
ST59,
ST6050,
ST66,
ST69,
ST77,
ST79
Studio Projects
C1,
C3,
C4,
T3,
LSD2,
CS1,
CS5
Superlux
S241,
CM-H8,
S502
T.Bone
EM 700,
EM 800,
EM 9600,
EM 9900,
Retro Bottle,
Retro Tube,
SC 140,
SC 400,
SC 450,
SC 600,
SC 1000,
SC 1100,
SC 1200,
SCT 200,
SCT 700,
SCT 800,
SCT 2000

Preamp Mods: