

DPA 3511ES Stereo Kit with Matched 4011ES Cardioid Microphones
PRICE ON ENQUIRY
DPA 3511ES (now DPK4011) piano stereo kit: two matched 4011ES compact cardioids with side cables, mounts for in-piano, XY, ORTF, A/B and hanging. Available in India from Shivansh Electronics, Kolkata, West Bengal, India.
VISUAL GUIDE — See Every Photo, Spec & Setup Step (PDF)
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Acoustics (4011ES)
| Directional pattern | Cardioid |
| Principle of operation | Pressure gradient |
| Cartridge type | Pre-polarised condenser |
| Frequency response | 20 Hz - 20 kHz |
| Effective frequency range, ±2 dB, at 30 cm (11.8 in) | 40 Hz - 20 kHz |
| Sensitivity, nominal, ±2 dB at 1 kHz | 10 mV/Pa; -40 dB re. 1 V/Pa |
| Equivalent noise level, A-weighted | Typ. 18 dB(A) re. 20 µPa (max. 20 dB(A)) |
| Equivalent noise level, ITU-R BS.468-4 | Typ. 25 dB |
| Distortion, THD < 1% | 136 dB SPL RMS, 139 dB SPL peak |
| Dynamic range | Typ. 121 dB |
| Max. SPL, THD 10% | 144 dB SPL peak |
| Matching tolerance (frequency response and sensitivity) | ±1 dB |
| Phase deviation for kit | < 10° |
Electrical (4011ES)
| Rated output impedance | 100 Ω |
| Cable drive capability | 100 m (328 ft) |
| Output balance principle | Impedance balancing |
| Common mode rejection ratio (CMRR) | > 40 dB |
| Power supply (for full performance) | P48 (phantom power) |
| Current consumption | 3.5 mA |
| Connector | XLR-3M. Pin 1: shield, Pin 2: signal + phase, Pin 3: - phase |
| Maximum output voltage, RMS | 2.2 V |
| Polarity | +V at pin 2 for positive sound pressure |
Physical (4011ES)
| Weight | 109 g (3.8 oz) |
| Microphone diameter | 19 mm (0.75 in) |
| Capsule diameter | 19 mm (0.75 in) |
| Microphone length | 35 mm (1.38 in) |
| Temperature range | -40°C to 45°C (-40°F to 113°F) |
| Relative humidity (RH) | Up to 90% |
| Colour | Matte black |
Product overview
The DPA 3511ES is a complete stereo kit with two compact 4011ES cardioid microphones with active side cables, factory-matched within ±1 dB on frequency response and sensitivity across the microphone's entire frequency bandwidth. DPA now offers it as the DPK4011 Piano Stereo Kit.
It is a versatile, compact piano kit, tailored for clean sound and limitless creativity. Widely described by professionals as natural, warm and detailed, with a classic listener perspective and a balanced top-to-bottom response, it suits high-fidelity piano recordings in the studio or live, solo or in ensembles.
The microphones are only 3.5 cm (1.4 in) long with a low-key appearance, so they fit inside both upright and grand pianos at all desired positions, with the lid open or closed. The integrated cable lets them hang from the ceiling for precise, repeatable positions and angles when spot miking orchestra sections or ambience, and they are equally ideal for unobtrusive table use.
The fittings in the kit allow hanging, fixed XY or ORTF mounting, and the stereo boom also allows A/B positioning. A shock mount doubles as a swivel joint for fixed mounting on microphone stands, or with one of the enclosed magnets for placement inside the piano.
| Matched response and sensitivity | ±1 dB |
| Microphone length | 3.5 cm |
| First order, pressure gradient | Cardioid |
| Dynamic range, typ. | 121 dB |
Key features
- Two factory-matched 4011ES cardioid microphones with active side cables
- Matched within ±1 dB, phase deviation < 10°
- Natural, warm and detailed piano sound with a balanced top-to-bottom response
- Fits inside upright and grand pianos, lid open or closed
- Hanging, XY, ORTF and A/B mounting
- Shock mount with swivel joint and magnets for internal placement
- Protective carrying case
Made for
- High-fidelity piano recording, studio and live
- Solo piano and piano in ensembles
- Hanging spot microphones for orchestra sections
- Ambience recording
- Unobtrusive table use
In the box
- 2 x 4011ES pencil microphones (matched stereo pair)
- 2 x SM4000-C Suspension Mount for pencil mics
- 2 x DUA0041 Foam Windscreen for pencil mics with active cable
- 1 x UA0897 Shock Mount for pencil microphone
- 1 x CXO4000 Compact XY/ORTF Stereo Holder
- 2 x MC4001 Microphone Clip for MMP-E preamp with active cable
- 2 x DUA9003 Gooseneck Mount Modular
- Protective carrying case
- Documentation: calibration chart
DPA 3511ES: frequently asked questions
Is the 3511ES the same as the DPK4011?
Yes. DPA states that the DPK4011 Piano Stereo Kit was previously known as the 3511ES Stereo Kit with Matched 4011ES Cardioid Microphones.
Will the microphones fit inside my piano?
Yes. Thanks to their compact 3.5 cm design they fit inside both upright and grand pianos at all desired positions, with the lid open or closed.
Which stereo techniques does the kit support?
Hanging, fixed XY or ORTF with the CXO4000 holder, and A/B positioning with the enclosed stereo boom.
How are the microphones powered?
Both run on P48 phantom power with 3.5 mA current consumption and drive cables up to 100 m (328 ft).
Can it be used beyond the piano?
Yes. It is ideal for unobtrusive spot miking such as hanging or table use, including spot miking orchestra sections and ambience from the ceiling.
Where can I buy the DPA 3511ES in India?
The DPA 3511ES is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.
Workflow 1: Grand piano, lid open or closed
Pianists and recording engineers.
Connections
| Connect | To |
|---|---|
| 2 x 4011ES | Magnets or shock mount inside the piano |
| Active XLR cables | Recorder with P48 |
Setup
- Place the microphones inside the piano at the desired positions.
- Close the lid if wanted.
- Connect both channels and switch on P48.
Tip: The compact microphones fit inside at all desired positions.
Workflow 2: Upright piano
Pianists and engineers, in the studio or live.
Connections
| Connect | To |
|---|---|
| 2 x 4011ES | Magnets or clips inside the piano |
| XLR x 2 | Console with P48 |
Setup
- Fit the microphones inside the upright piano.
- Set the gains.
Tip: A natural, warm and detailed listener perspective.
Workflow 3: XY or ORTF pair
Recording engineers.
Connections
| Connect | To |
|---|---|
| 2 x 4011ES | CXO4000 Compact XY/ORTF Stereo Holder |
| CXO4000 | Stand via the UA0897 shock mount |
Setup
- Mount the pair in the CXO4000 in XY or ORTF.
- Fit it to a stand with the swivel shock mount.
- Record both channels.
Tip: The shock mount also acts as a swivel joint.
Workflow 4: A/B pair
Engineers recording piano in ensembles.
Connections
| Connect | To |
|---|---|
| 2 x 4011ES | Enclosed stereo boom |
| XLR x 2 | Recorder with P48 |
Setup
- Mount the pair on the stereo boom for A/B.
- Set the spacing and record.
Tip: The microphones are matched within ±1 dB.
Workflow 5: Hanging spot microphones
Engineers in concert halls.
Connections
| Connect | To |
|---|---|
| 4011ES | SM4000-C Suspension Mount |
| Active side cable | Console with P48 |
Setup
- Hang the microphones from the ceiling in the SM4000-C mounts.
- Aim at the orchestra section or room.
Tip: Precise, repeatable positions and angles.
Workflow 6: Unobtrusive table use
Broadcast and recording users.
Connections
| Connect | To |
|---|---|
| 4011ES with DUA0041 windscreen | Table |
| XLR | Input with P48 |
Setup
- Place the low-key microphone on the table.
- Connect and set the gain.
Tip: Only 3.5 cm long.








