How a Cellist Took a DPA 4099 Wireless for a 100K-Subscriber Multi-Scene Livestream

Cellist YOYO Wu (YOYO Cello) recently held a YouTube livestream to celebrate reaching 100,000 subscribers (watch the stream). To let YOYO move gracefully between the performance and Q&A segments, the camera team reached out to CloudVocal for a wireless input and monitoring solution, including going DPA 4099 wireless for the cello itself. With the EverSync Wireless IEM for monitoring and the SP-10 Wireless Stomp Pedal for wireless input, the stream came together beautifully. Below we walk through a few setup details, so anyone looking to go wireless for input and monitoring can see how it all fits together.

Multiple scenes create the need for wireless input and monitoring

Reaching 100,000 subscribers was a milestone, so YOYO’s team wanted to make it a memorable occasion, not just another livestream. Instead of one fixed camera angle, they designed several distinct on-screen scenes and moved between performance and Q&A to keep it visually engaging. That ambition came with a practical catch: the moment a performer starts moving and scenes start changing, wired input and monitoring get in the way of both movement and sound control

To let the performer move freely while keeping the stream’s audio clean, the answer was clear: both input and monitoring had to go wireless (if you have questions about how wireless transmission works and where latency comes from, start with this intro to wireless principles).

SP-10: taking the DPA 4099 wireless

For miking the cello, YOYO has a mic he’s used to: the DPA 4099. Until now, he’d always run it wired.

Because this stream needed freedom to move, we provided the EverSync SP-10, letting YOYO keep his familiar mic while sending the sound wirelessly to the mixing console, feeding straight into the stream’s OBS system and out to the fans watching on the other side of the screen.

With this setup, YOYO could move anywhere during scene changes while the cello signal stayed rock-solid.

EverSync IEM wireless monitoring, for nailing pitch detail

Music channels demand higher audio quality, and things are easily fall apart if the gear can’t keep up. The cello in particular is a fretless instrument where pitch is extremely hard to control, so hearing the instrument and the backing track clearly is essential for intonation and overall balance.

The EverSync IEM is built for exactly this. Going wireless lets him hear his own playing and the backings while staying alert to the director’s cues in his ears, keeping everything on track (if you’re not yet familiar with IEM monitoring, take a look at this IEM intro).

At the console: two wireless systems, no interference

At the console, the SP-10’s input signal goes into the mixer’s Input, while the mixer’s Monitor Out feeds the EverSync IEM, forming a complete wireless input-and-monitoring chain. The two devices run on separate bands with their own proprietary protocols (SP-10 on 2.4GHz, IEM on 5.8GHz), so they stay well clear of interfering with each other.

SP-10 and EverSync IEM specs at a glance

Item	EverSync SP-10	EverSync IEM
Role	Wireless input: sends the mic / instrument signal wirelessly to the console	Wireless monitoring: sends the mixer signal wirelessly back to the performer’s ears
Wireless band	2.4GHz proprietary protocol	5.8GHz proprietary protocol
System	Bodypack transmitter + pedal receiver	Transmitter + bodypack receiver (1T1R base, expandable to multiple receivers)
Source compatibility	3.5mm interface; CW-series adapter cables support DPA MicroDot (CW052), Sennheiser / SonoFlex (CW03A), 6.3mm instrument (CW06), and dynamic XLR mic (CW07); can supply power to the mic	Transmitter 2-in / 2-out 6.3mm jacks; receiver with built-in 100mW headphone amp, in-ear earphones recommended; no built-in preamp or phantom power
Power & battery	Receiver: DC 9V (pedal standard) or USB-C; transmitter has a built-in battery, ~3 h USB-C charge for ~10 h of use	Transmitter: DC 9V (pedal standard) or USB-C; receiver has a built-in battery, ~3 h USB-C charge for ~8 h of use
Latency	6 ms – Low-latency mode 9 ms – Standard mode	<5 ms
Price (USD)	$329.00	$299.00

Wrap-up: wireless input and monitoring can be one system

We’re glad Cloudvocal could be part of this milestone for YOYO Cello. If you’re planning a livestream or performance that needs wireless input and monitoring, whether for strings, winds, or singer-songwriters, take a closer look at the EverSync series:

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Photos courtesy of the YOYO Cello camera team, published with permission from both parties.