FAQ - SP10 Wireless Stomp Pedal

Start Here

New to the SP10? Watch this short video for a quick overview of the basic setup and operation.

EverSync SP-10 Wireless Stomp Pedal — Operation Guide

Quick Start

Three steps — follow along once and you're ready.

1 Power On & Set Up
  • The receiver can be powered by USB-C, a power bank, or a 9V adapter
  • Press and hold the power button on the transmitter to turn it on
  • When using a SonoFlex microphone, switch it to 2-wire mode

＊ The transmitter and receiver are paired at the factory — you only need to re-pair when switching devices.

2 Adjust Sensitivity & PAD

Use the sensitivity control and PAD (which attenuates overly strong input signals) to get a cleaner sound.

  • For loud sources (such as sax or guitar pickups), turn PAD on
  • For violin or quieter instruments, turn PAD off
  • Play at your loudest while testing, and set the sensitivity so the level goes past the middle mark of the volume bar
3 Choose the Right Adapter Cable

Choose the matching official adapter cable for your microphone or pickup and connect it to the transmitter.

Part Code Adapter Type Compatible With
CW03A 3.5mm to 3.5mm SonoFlex microphone (2-wire mode)
CW03B 3.5mm to 3.5mm SonoFlex microphone (3-wire mode only)
CW052 3.5mm to Microdot female DPA microphones
CW06 3.5mm to 6.3mm TS 6.3mm TS instrument pickups
CW07 3.5mm to XLR female Dynamic XLR microphones (no phantom power)
CW041B 3.5mm to TA4F Mipro microphones
Adapter cables for the CLV21A transmitter

Overview of adapter cables for the CLV21A transmitter.

SP10 transmitter 3.5mm input polarity

SP10 transmitter 3.5mm input polarity definition.

＊ Not sure if your microphone is compatible? See FAQ Q1 below.

FAQ

Q1. Can I use the microphone I already have?

Most common microphones and instrument pickups work with the SP10 — you just need the right adapter cable, or a third-party adapter. The SP10 transmitter uses a Sennheiser-compatible 3.5mm connector and supports Mic / Line signals (including high-impedance signals).

For the adapter cable chart, see Quick Start STEP 3 above. Below are additional compatible microphones and usage notes.

Other Compatible Microphones

  • Sennheiser instrument microphones (e908B, MCM114) — direct connection, no adapter needed
  • AKG C519 M (TA3M) — requires a third-party adapter
  • Shure Beta 98H/C (TA4M) — requires a third-party adapter
CW07 supports dynamic XLR microphones only. Condenser microphones that require phantom power are not supported. You can also use any Sennheiser-compatible 3.5mm adapter for other microphones.

Not sure about compatibility? Send us your microphone model or a photo of the connector and we'll help you confirm the right cable.

Q2. How do I factory reset the receiver and transmitter?

When pairing fails or a device behaves unexpectedly, factory resetting both units and re-pairing usually fixes it.

Receiver Factory Reset

  1. Press and hold Audio and Radio together for about 5 seconds
  2. The reset is complete when a confirmation message appears on the screen

Transmitter Factory Reset

  1. Keep the transmitter powered on
  2. Press and hold PAIR and MUTE together for about 3 seconds
  3. The LED will indicate the reset status — once done, re-pair both units
Pairing is successful when the receiver screen shows the transmitter connection status and the transmitter LED stops flashing.
Q3. What power options does the SP10 receiver support?

The SP10 receiver has no built-in battery. It supports two power options:

  • 9V DC power adapter (center-negative)
  • USB-C 5V power — power banks supported

If You Hear Noise

  • Use a well-isolated power source, such as an audio-grade power adapter or a power bank
  • Noise usually comes from power quality or grounding issues — try switching the power source first before troubleshooting elsewhere
Q4. How do I adjust FX Blend?

If you can't find FX Blend on the receiver, it's most likely because you're in wireless mode — in that case, adjust it on the transmitter.

  • Wireless mode: Adjust FX Blend on the transmitter — the receiver has no effect
  • Wired mode: Adjust FX Blend on the receiver — the transmitter has no effect
Q5. I connected a cable and want to go wireless — why is there no sound?

In short: as soon as any cable is plugged into the receiver, wireless is automatically turned off. To go wireless, unplug all cables.

This is because the receiver automatically decides which input to use — when multiple sources are connected, it only activates the one with the highest priority. The order is:

  1. SonoFlex wired input (using the dedicated CW03B cable) — highest priority
  2. 6.3mm wired input
  3. Wireless reception (paired with the transmitter) — lowest priority

So when you want wireless but get no sound, the first thing to check is whether a cable is still plugged into the receiver. Unplug the wired inputs and wireless will take over.

Connector Locations

  • SonoFlex input (3.5mm, upper-right): Connect SonoFlex directly to the receiver with CW03B. Highest priority — once connected, it disables all other inputs
  • 6.3mm wired input (right side): Connect instrument pickups directly with a standard 6.3mm instrument cable
  • Wireless mode: Pair the receiver with the transmitter, and make sure no cables are plugged into the receiver
SP10 wireless connection diagram

SP10 wireless connection diagram.

SP10 wired connection diagram

SP10 wired connection diagram.