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


Available Mods and Pricing

Rode NT1000 Modified by John Bonnell.

Rode Microphone Mods

Rode NT1-A Mod ($200)—A more mid-rangey, rough-and-tumble version of the NT1000, which can be used successfully in many different situations.

Rode NT1000 Mod ($200)—One of the best all-around modded microphones 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 Mod ($250)—The FET version of the K2, and equally excellent. Three selectable polar patterns.

Rode NT2000 Mod ($250)—The FET version of the K2, and equally excellent. Fully variable polar patterns.

Rode K2 Mod ($500)—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. My modifications elevate it to the top line microphone it was meant to be!

Rode NTK Mod ($500)—Fixed Cardioid pattern, otherwise identical to the K2. Excellent all-around.

Rode NT4 Mod ($500)—A solid stereo mic.

Rode NT5 Mod ($300)—A great SDC.


MXL 990-Schoeps Mod by John Bonnell.

Schoeps Mod (Schoeps copy)—Most transformerless microphones are copied from Schoeps, which are $1,600+ small diaphragm condensers used in high-end recording studios. Some copies use large diaphragm capsules, which real Schoeps mics do not, but it makes little difference in the overall character. At a fraction of the cost of a real Schoeps mic, my Schoeps Mod is an unbeatable alternative for those seeking real studio sound on a budget! This isn't some nonsense three component mod from the internet or an eBay kit, this is a comprehensive suite of modifications and upgrades that transform your microphone into a bonafide studio classic!

Comparison video of a modded MXL 990 to a vintage Neumann U87i.

The Schoeps Mod is $250 for:

Apex
180,
185,
415,
435
Avantone
CK-1,
CK-6,
CK-7
Behringer
B-2
CAD Audio
e70,
GXL1200,
GXL2200,
GXL2400
Cascade
M39
Gauge
ECM-84,
ECM-87
Golden Age Project
FC 4
M-Audio
Pulsar
Monoprice
600700,
600800
MXL
440,
441,
550,
551,
600,
603,
604,
606,
770,
840,
870,
880,
909,
910,
920,
990,
990s,
990XL,
991,
992,
993,
2006,
Cr-24p,
MCA SP1,
V6,
V250,
V57M,
V63M
Nady
CM-90,
CM-95,
SCM-800,
SCM-900,
SCM-1000
Rode
NT1 (Original Model),
NT2 (Original Model)
Sterling Audio
SP30,
SP50,
ST31,
ST33
Studio Projects
C1,
C3,
C4
Superlux
S241
T.Bone
SC 140,
SC 400

The Schoeps Mod is $500 for:

Avantone
CK-40
MXL
990 Stereo
Nady
SCM-2090
Studio Projects
LSD2
Superlux
S502

MXL V67G-U87 Mod by John Bonnell.

U87 Mod (U87 copy)—Following vintage Neumann schematics and design principles, using difficult to source parts and Neumann specified values and tolerances, top-line performance is achieved. Your microphone will have lower self-noise, higher output, and serious life and character like that of the classic U87. The real u87 alternative. The real sound, at a fraction of the price of a vintage Neumann!

Comparison video of a modded MXL V67g to a vintage Neumann U87i.

The U87 Mod is $400 for:

ADK
A-51,
S-51
AKG
Perception 200,
Perception 220
Apex
430,
530
Cascade
M20U
Golden Age Project
FC 1 MKII,
FC 2 ST
MXL
2001,
3000,
V67G,
V67GS
SE Electronics
SE2000
Sterling Audio
ST77
T.Bone
SC 450

The U87 Mod is $500 for:

AKG
Perception 400,
Perception 420
Apex
420,
480,
520
CAD Audio
GXL3000,
Trion 6000
Golden Age Project
FC 3
Sterling Audio
ST79

Audio-Technica Microphone Mods—Correcting the various issues with these mics, allowing them to perform at their best.

The Audio-Technica Mod is $200 for:

Audio-Technica
AT2020,
AT2035,
AT2050,
AT3035,
AT4031,
AT4033,
AT4047,
AT4050

Golden Age Project (GAP) Pre-73 Mod ($600)—An excellent copy of the Neve 1073 preamp design—with low quality and incorrect stock components. Following original Neve design principles, I mod it to be as close to an actual Neve as anyone could ever hope for. Serious studio sound!


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


Please contact me to place an order.

Condenser Mic Repair

If your condenser microphone is silent, distorted, or otherwise non-functional, please inquire with details of the 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.


Ordering:

Shipping Guidelines

USA orders:

Return shipping is included, per shipping guidelines.

International orders:

Please contact for return shipping costs.

International shipping costs average $8-$50.

Payment options:

PayPal Acceptance Mark

As well as Check and Money Order

Payment plans available.

Contact to Order Your Mic Mod