FAQ - SonoFlex Instrument Microphone

Quick Start

Three steps — follow them once and you're set.

1 Pick the right cable, set the right mode

This is the most important step. Start with how you're using it:

  • Wired XLR output (to a mixer or audio interface) → set the base to 3
  • Wireless bodypack → match your brand in the table below to choose the cable and mode
Wireless bodypack Connector Cable Switch Mode Adapter
Sennheiser / EverSync SP-10 3.5mm CW03A 2 Not required
DPA Microdot 2 Pin CW02 2 Not required
Shure TA4F 4 Pin CW041A 3 Not required
Mipro TA4F 4 Pin CW041B 3 Not required
AKG TA3F 3 Pin CW03A 2 Required (buy link)
Audio-Technica Hirose 4 Pin CW03A 2 Required (buy link)

＊ The wrong mode can cause abnormal volume or extra noise. Not sure of your specs? Send us your transmitter model or a photo of the connector and our team can confirm.

2 Connect signal and power

SonoFlex is a condenser microphone — it needs power to produce sound. Connect it to the right device for your setup:

  • Wireless: connect to the wireless transmitter (bodypack), which supplies power
  • Wired: connect via XLR to a device that provides 48V phantom power (audio interface, mixer, or preamp)

＊ Plugging XLR straight into a portable speaker often produces no sound, because most speakers don't supply phantom power. See Q1.

3 Mount on the instrument and aim

Align the base groove with the cross-shaped tab on the mount, then turn clockwise until you hear a "click" to lock it in place. Bend the gooseneck to aim the mic head at the instrument's sound source.

＊ The gooseneck has no angle limit and can be adjusted freely for each instrument. Can't find a mount that fits? See Q5.

Frequently Asked Questions

Q1. No sound at all when connecting XLR to a portable speaker?

This usually means the speaker doesn't supply 48V phantom power. SonoFlex is a condenser microphone and can't be driven without phantom power — often resulting in no sound at all.

Portable speakers like the Bose S1 Pro Plus or Roland Cube Street have an XLR mic input, but most don't provide phantom power.

SonoFlex needs a device with 48V phantom power

  • Audio Interface
  • Mixer
  • Preamp
  • A speaker that supports phantom power

To perform with a portable speaker, use a wireless setup instead — the bodypack supplies power.

Q2. Signal clipping, distortion, or loud button noise with Sennheiser AVX?

When using SonoFlex (Mode 2) with a Sennheiser AVX + CW03A adapter cable, if you get signal overload, need heavy attenuation, or hear amplified button clicks, it's usually a gain mismatch in the AVX system.

Adjust AVX transmitter input sensitivity

  • Adjust Input Sensitivity / Gain in the AVX transmitter menu
  • Lower the input gain, or enable a setting with Attenuation / Pad
  • Most users need the lowest gain for the signal to fall into the normal range

Check AVX receiver output level

  • Make sure the mixer or PA receives the AVX signal at Line Level
  • If connected at Mic Level by mistake, the system boosts the signal again, causing overload

If it's still abnormal after adjusting, send us your mixer model and a screenshot of your settings and our team can take a closer look.

Q3. What do 2 / 3 on the microphone base mean?

2 / 3 switches between two-wire and three-wire mode. The difference is whether the mic's audio signal and bias (power) are combined or separated. Set it to match your device for correct power delivery.

Mode Wiring Signal & bias
2 (two-wire) Ground (GND) + signal bias and audio share one line
3 (three-wire) GND / audio / bias all three are separate

For the setting that matches your brand, see Quick Start STEP 1 above.

Q4. Is there an angle limit on the twist lock?

No angle limit. Once mounted, the gooseneck bends freely toward the 12 / 3 / 6 / 9 o'clock positions, so you can fine-tune the pickup spot for each instrument.

For mounting instructions, see Quick Start STEP 3 above.

Q5. What if no mount fits my instrument?

Email us at service@cloudvocal.com with your instrument type and model, plus photos of the shape, tube diameter, or mounting point. We'll assess an existing compatible option, a prototype in development, or a simple workable modification.

Q6. What should I do about feedback (squealing)?

Feedback is a loop: the mic picks up the speaker, the sound is amplified, then picked up again — producing a sharp squeal. Try these directions:

Direction What to do
Placement Keep the mic from facing the speaker directly — angle it away and keep adequate distance
Volume Lower the amp or speaker volume
Directionality Use a more directional mic (e.g. cardioid)
EQ Cut the feedback-prone frequencies (which vary by instrument and room, so find them on site)