Large Diaphragm Studio Condenser Microphone with Pad and Roll Off

The A133 is a large-diaphragm condenser microphone ideal for vocals, choir, piano, acoustic instruments, and overheads. Featuring a contemporary, compact design, the A133 is the perfect choice for podcasting, professional audio production, studios, and live stage performances.

Housed in a precision-machined aluminum body, the 33 mm fixed-charge capsule features a gold-sputtered diaphragm for wide, natural frequency response. With its well-behaved cardioid polar pattern, the A133 faithfully captures the detail of the performance while rejecting room noises and other unwanted, off-axis sounds.

A double woven steel mesh grille and ultra-thin acoustic foam offer exceptional pop resistance for podcasting and vocals. Behind the grille, the open-air design of the capsule mounting system allows the A133 to deliver transparent, uncolored sound.

Proprietary impedance control between the capsule and circuitry ensures consistent and reliable performance across a wide range of environments.

A unique and highly effective internal shock mount isolates the capsule from mechanical vibrations and touch noise, eliminating the need for a bulky external shock mount.

The switchable 10 dB pad and bass roll-off ensures you’re ready for any recording or live performance situation.

Offering studio performance in a road-worthy package, the A133 also comes with a protective zippered carrying case.

Requires 48-52 V phantom power. For best results, the A133 should be used with a high-quality mic preamplifier and microphone cable.


  • Large 33 mm condenser capsule
  • Cardioid polar pattern
  • Proprietary internal shock mount
  • Low noise preamp circuitry
  • Switchable 10 dB pad and bass roll-off
  • Designed, machined, assembled, and tested in the USA

Where To Buy
  • Specifications
  • What’s in the Box?
  • Reviews
  • Videos
Transducer / Capsule Technology 33 mm fixed-charge condenser / 29 mm 3.4 micron gold-sputtered diaphragm
Frequency Response 40 Hz – 20 kHz
Polar Pattern Cardioid
Output Impedance 150 ohms
Sensitivity 23 mV / Pa @ 1 kHz
Signal to Noise Ratio 84 dB
Maximum SPL 140 dB (150 dB with pad)
Dynamic Range 130 dB
Equivalent Noise Level 10 dBA
Operating Voltage 48 V (± 4 V) Phantom
Connector 3-pin XLR m
Materials / Finish Body: Machined aluminum Grille: Steel alloy
Weight 280 g / 10 oz
Download Spec Sheet

1x A133 Microphone
1x Protective zippered carrying case
1x DCLIP Heavy-duty nylon molded snap-on clip

Media Reviews

All Things Gear: A133 condenser mic review: A small condenser that packs an impressive bite
“With its ingenuity in design and extreme portability in mind, there’s no question this mic will prove itself as a welcome addition to your mic locker.”