Alctron
Alctron UM900 USB condenser microphone 16bit 48KHZ cardioid
A USB condenser microphone with 16-bit/48 kHz conversion, cardioid pattern and 20 Hz–18 kHz response for clean voice capture
- Plug-and-play USB connection means no extra interface needed
- 16-bit/48 kHz A/D conversion delivers studio-grade digital audio
- Cardioid polar pattern rejects noise from back and sides
- 16 mm back electret capsule captures clean, crisp sound
- 20 Hz–18 kHz frequency response covers full vocal range
For streamers and podcasters
The Alctron UM900 is a USB condenser microphone built for podcasters, journalists, students and voiceover artists who want studio-quality sound without an external audio interface. It connects directly to a computer via a standard USB port and works immediately on Windows and Mac systems with no driver installation required. The cardioid polar pattern focuses on sound from the front while rejecting unwanted noise from the back and sides. A 16mm back electret capsule captures clean, crisp audio reproduction for recordings and live streams.
Limited to 16bit 48KHZ conversion
The built-in A/D converter tops out at 16bit resolution and a 48KHZ sampling rate, which covers standard broadcast and streaming needs but does not reach high-resolution audio specifications. Frequency response spans 20Hz to 18KHz, capturing the full audible range for speech and vocals. Plug-and-play operation relies entirely on the host computer's USB audio class driver, so advanced routing or hardware monitoring features depend on software rather than the microphone itself. Users needing higher bit depths or sample rates must use a separate interface.
Cardioid pattern rejects side noise
The fixed cardioid polar pattern is the single specification that determines whether this microphone suits your environment. It excels at isolating a single speaker in untreated rooms by attenuating sound arriving from the rear and sides. Buyers who need to capture multiple voices around the microphone, record ambient soundscapes or switch between polar patterns for different scenarios will find this pattern too restrictive. The included shock mount helps reduce low-frequency vibration, but the directional characteristic remains the defining constraint.
Highlights
- Plug-and-play USB connection means no extra interface needed
- 16-bit/48 kHz A/D conversion delivers studio-grade digital audio
- Cardioid polar pattern rejects noise from back and sides
- 16 mm back electret capsule captures clean, crisp sound
- 20 Hz–18 kHz frequency response covers full vocal range
Specifications
No published specifications for this item yet.
Questions about this item
Should I choose the 16bit/48KHZ version or a higher-resolution model?
The UM900 captures at 16bit/48KHZ, which meets broadcast-quality standards for podcasting, streaming and voice-over work; higher sample rates are only needed for professional music production.
What does the 16bit/48KHZ figure mean when I record on my computer?
It means the built-in converter digitises your voice at CD-quality resolution — 16-bit depth and 48 KHZ sampling — so recordings are ready for streaming or editing without an external interface.
Does the USB connection limit the 16bit/48KHZ performance in practice?
The standard USB audio class link carries the full 16bit/48KHZ stream natively on Windows and Mac, so the microphone delivers its rated resolution without extra drivers or bandwidth bottlenecks.
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