I’m using a SM58 microphone with a Scarlett 2i2 audio interface. How do I connect and use?

Connect SM58 to RO03 XLR input. Link RO03 output to 2i2 6.35mm Line In via XLR-TRS cable or 6.35mm TRS cable. Set 2i2 gain to minimum, then adjust RO03 gain slowly for a healthy signal level.

Can I connect two microphones to the RO03 at the same time?

No, you can only use one input at a time. The two input ports cannot work simultaneously.

Can I connect this preamp to an outdoor speaker?

Yes. Use a 6.35mm TS cable from the RO03’s TS output to the Mic or Line input on your speaker.

What’s the difference between the 3 output jacks on the RO03?

The XLR and TRS outputs are identical, offering more cable options. The TS output is an attenuated signal, ideal for connecting to non-professional devices.

Do I need to turn on 48V phantom power on my audio interface for condenser mics?

No. Simply enable the 48V phantom power on the RO03 itself.

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rodyweilマイクロフォンプリアンプ Preamp gain booster(ダイナミックコンデンサー用)mic最大75dbオーディオインターフェースのライブストリーミング用ゲイン

Product ID: 766206613

Details

Recommended Uses For Product
Singing
Brand
Rodyweil
Connectivity Technology
XLR
Connector Type
XLR
Special Feature
Uses a battery
Compatible Devices
Audio

⚡48V phantom power for condensers

🔊Up to +75dB clean gain

🎙️Dual channel input for dynamic & condenser

HK$1084

Duties & taxes included

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Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎤 Elevate your live stream audio game with pro-level clarity and power!

PRO GRADE CONNECTIVITY - Balanced XLR output plus 3.5mm line and mic outputs for flawless integration with any audio interface.
ULTRA LOW NOISE DESIGN - Full-balanced circuit ensures ultra-clean sound with minimal interference—your audience will hear every detail.
VERSATILE PHANTOM POWER - 48V phantom power supports both dynamic and condenser microphones seamlessly.
DUAL CHANNEL FLEXIBILITY - Simultaneously amplify one dynamic and one condenser mic with two independent inputs.
MAXIMIZE YOUR MICS POTENTIAL - Boost your audio signal up to a pristine +75dB gain for crystal-clear streaming and recording.

This compact, metal-bodied microphone preamp delivers up to +75dB of clean gain, supports both dynamic and condenser mics via 48V phantom power, and features dual inputs with balanced XLR and 3.5mm outputs. Designed for live streaming and professional audio setups, it ensures ultra-low noise and crystal-clear sound reproduction.

Specifications

Power Source	Corded Electric
Material	Metal
Signal-to-Noise Ratio	75 dB
Number of Channels	2
Manufacturer	Rodyweil
UPC	616859152007
Batteries Included	Yes
Batteries Required	No
Item Model Number	RO03
Special Features	Uses a handheld battery
Product Dimensions	9 x 10 x 11 cm; 400 g

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