Introduction
The Shure Beta58A is a dynamic vocal microphone that has become a staple in live sound and KTV venues worldwide. If you're an AV integrator or venue investor looking for reliable, high-performance microphones, understanding its specs and real-world performance is key. This review breaks down the Shure Beta58A specs, typical use cases, and why it remains a popular choice—especially when you can source tested used units from Acoustrade.
Key Specifications
The Shure Beta58A is a supercardioid dynamic microphone designed for professional vocal use. Here are the core specs:
- Type: Dynamic (moving coil)
- Polar Pattern: Supercardioid
- Frequency Response: 50 Hz – 16 kHz
- Sensitivity: -51.5 dBV/Pa (2.6 mV/Pa)
- Impedance: 150 ohms
- Connector: XLR
- Weight: 278 g
- Body: Die-cast metal with hardened steel grille
These specs make it ideal for isolating vocals on loud stages and reducing feedback—a common challenge in KTV rooms and live venues.
Performance and Sound Quality
The Beta58A is known for its presence boost in the upper midrange, which helps vocals cut through dense mixes. Its supercardioid pattern offers tighter off-axis rejection compared to the standard SM58, making it a better choice for stages with high SPL or multiple monitors.
The microphone handles high sound pressure levels (SPL) without distortion, so it works well for both soft ballads and powerful rock vocals. In KTV settings, this means clearer, more defined vocals even when the backing track is loud.
Build Quality and Durability
Shure built the Beta58A to survive touring. The die-cast metal body and hardened steel mesh grille resist wear and tear. The internal shock mount reduces handling noise, which is a plus for handheld use. Many rental companies and integrators choose it because it holds up over years of use.
Common Use Cases
- Live vocals: Lead and backing vocals in bands, solo performers.
- KTV venues: Ideal for private rooms and stages where feedback control is critical.
- Houses of worship: Clear speech and singing in reverberant spaces.
- Conference and presentations: When a rugged, reliable mic is needed.
Why Buy a Used Shure Beta58A from Acoustrade?
Acoustrade specializes in tested used pro-audio equipment. Every Shure Beta58A we sell is inspected for performance and cosmetic condition. For venue investors and AV integrators, this means:
- Cost savings without sacrificing quality.
- Global shipping with proper packaging.
- Consistent stock of popular models like the Beta58A.
We also carry a wide range of microphones, amplifiers, speakers, line arrays, and mixers to outfit entire venues. If you're building a KTV or live sound system, we can help you source everything in one place.
FAQ
Q: What is the difference between the Shure Beta58A and the SM58?
A: The Beta58A has a supercardioid polar pattern (vs. cardioid on the SM58), higher output, and a presence boost. It offers better feedback rejection and is often preferred for loud stages.
Q: Is the Shure Beta58A good for KTV?
A: Yes. Its supercardioid pattern and high SPL handling make it excellent for KTV rooms where feedback and loud backing tracks are common.
Q: Can I use the Beta58A for recording?
A: While it's primarily a live vocal mic, it can be used for recording loud sources or in untreated rooms where its tight pattern helps isolate the voice.
Q: Does Acoustrade test used microphones before selling?
A: Absolutely. Every used microphone, including the Beta58A, is tested for audio quality and functionality before being listed.
Q: What should I check when buying a used Beta58A?
A: Check the grille for dents, the XLR connector for tight fit, and test for any distortion or intermittent signal. Buying from a reputable dealer like Acoustrade ensures these checks are done for you.
