






Shure SM4-K-KIT Studio Condenser Microphone Kit
- 1-inch dual-diaphragm brass capsule
- Cardioid condenser XLR microphone
- 140 dB SPL handling
- Patent-pending RF interference shielding
- Shock mount and magnetic pop filter
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The Shure SM4-K-KIT is an XLR condenser microphone package for home recording, streaming, voice work, and instrument capture. It is designed for creators who want a dedicated studio microphone with straightforward analog connectivity rather than a USB-only setup. The kit pairs the SM4 microphone with a shock mount, removable pop filter, stand adapter, and carrying case.
The SM4 uses a cardioid pickup pattern to focus on the sound in front of the microphone while reducing unwanted sound from the sides and rear. Its 1-inch dual-diaphragm brass capsule is voiced for controlled low frequencies and detailed high frequencies. This makes it suitable for vocals, acoustic instruments, amplifiers, drums, horns, and other recorded sources.
For modern recording spaces, the SM4 incorporates Shure's patent-pending interference shielding technology. Its woven mesh Faraday cage and internal pop filter help reduce radio-frequency interference and vocal plosives before the signal reaches your recording chain. The result is a cleaner starting point for editing, mixing, podcast production, and live-stream content.
The microphone handles up to 140 dB SPL with a 1 kΩ load at 1% THD, allowing it to accommodate loud sources such as guitar amplifiers and drums. Its 15 dB SPL typical A-weighted self-noise and 125 dB dynamic range support detailed recording across a wide range of source levels. A broad sweet spot is intended to help provide more consistent close-mic results with reduced proximity effect.
Because the SM4 is an analog XLR condenser microphone, it fits naturally into an upgradeable studio system built around an audio interface or mixer. It requires +48 V phantom power and an XLR connection, so it is not a direct USB microphone. The included shock mount and magnetic pop filter make this kit especially practical for vocal recording, desktop studio setups, and camera-facing content creation.
Key Features
- Dual-Diaphragm Capsule: A 1-inch brass capsule captures controlled lows and detailed highs.
- Cardioid Pattern: Focuses on the intended source while reducing off-axis room noise.
- RF Interference Shielding: Helps block interference from phones, laptops, and Wi-Fi devices.
- High SPL Handling: Records loud instruments up to 140 dB SPL.
- Dual-Stage Pop Filtering: Internal filtering and the removable pop filter reduce plosives.
- Studio Kit Accessories: Includes a shock mount, stand adapter, and carrying case.
Design & Installation
The SM4 has a rugged die-cast zinc housing with an all-metal exterior designed for regular studio use. Its low-profile side-address form helps keep the microphone visually unobtrusive for video production and streaming. The kit's A4SM shock mount helps damp mechanical vibrations, while the A4PF magnetic pop filter attaches directly to that mount.
Mount the microphone in the included shock mount on a stable microphone stand, then use the supplied brass stand adapter if needed. Connect its male 3-pin XLR output to an audio interface or mixer with an XLR cable, then enable +48 V phantom power. For close vocals, attach the magnetic pop filter; for instruments, adjust placement and input gain to suit the source level.
| Brand | Shure |
|---|---|
| Model / SKU | SM4-K-KIT |
| UPC | 042406812511 |
| Product Type | Home recording microphone kit |
| Microphone Type | Condenser (externally biased) |
| Address Type | Side-address |
| Capsule Configuration | Dual diaphragm |
| Capsule Size | 1 inch |
| Capsule Material | Brass |
| Polar Pattern | Cardioid |
| Frequency Response | 20 Hz to 20,000 Hz |
| Output Impedance | 150 Ω at 1 kHz, open-circuit voltage |
| Sensitivity | -38 dBV/Pa at 1 kHz, open-circuit voltage |
| Sensitivity Output | 17.8 mV |
| Sensitivity Reference | 1 Pa = 94 dB SPL |
| Signal-to-Noise Ratio | 79 dB |
| Maximum SPL | 140 dB SPL |
| Maximum SPL Test Condition | 1 kHz, 1% THD, 1 kΩ load |
| Self-Noise | 15 dB SPL, A-weighted typical |
| Dynamic Range | 125 dB |
| Dynamic Range Load | 1 kΩ |
| Polarity | Positive diaphragm pressure produces positive voltage on pin 2 relative to pin 3 |
| Output Connector | Three-pin professional audio XLR, male |
| Phantom Power Requirement | 48 V DC |
| Phantom Power Current Draw | 5.3 mA |
| Housing Material | Die-cast zinc |
| Construction | All-metal |
| Microphone Weight | 463 g |
| Microphone Weight (Imperial) | 1.02 lb |
| Maximum Diameter | 52 mm (2.05 in.) |
| Microphone Height | 138.6 mm (5.46 in.) |
| Overall Length With Mount | 149.7 mm (5.89 in.) |
| Handle Diameter | 19.5 mm (0.77 in.) |
| Base Diameter | 31 mm (1.22 in.) |
| Interference Protection | Patent-pending RF interference shielding technology |
| Integrated Pop Filter | Yes |
| Shielding Mesh | Woven mesh Faraday cage |
| Included Shock Mount | A4SM |
| Included Pop Filter | A4PF detachable magnetic pop filter |
| Included Stand Adapter | Brass mic stand adapter |
| Included Carrying Case | A4CC zippered carrying case |
| Included Microphone | SM4 Home Recording Microphone |
Does the SM4-K-KIT connect directly to a computer by USB?
No. The SM4 has a male 3-pin XLR output and requires an audio interface or mixer for computer recording. The connected interface or mixer must provide +48 V phantom power.
What else is needed to start recording?
You need an XLR cable, a microphone stand, and an audio interface or mixer with an XLR microphone input and +48 V phantom power. An XLR cable and audio interface are not listed among the kit contents.
What is included with the SM4-K-KIT?
The kit includes the SM4 microphone, A4PF detachable magnetic pop filter, A4SM shock mount, brass mic stand adapter, and A4CC zippered carrying case. These accessories are specific to the studio kit configuration.
Can this microphone be used for loud instruments?
Yes. The SM4 is rated for a maximum SPL of 140 dB SPL at 1 kHz and 1% THD with a 1 kΩ load. Shure identifies high-SPL sources such as drums, guitar amps, and horns among its intended recording uses.
Is the pop filter removable?
Yes. The included A4PF pop filter is detachable and magnetic, attaching to the included shock mount. The microphone also has an internal pop filter for additional plosive reduction.
Is this a cardioid or multi-pattern microphone?
The SM4 has a fixed cardioid polar pattern. It is designed to emphasize sound arriving from the front while reducing off-axis pickup.
Shipping
- Free 2nd-Day Air shipping on this item
- FREE Next-Day Air on orders over $499
- Orders placed on business days are typically processed the same day, delivery estimates are shown at checkout.
Warranty & Returns
- Authorized Dealer — 100% authentic products with full manufacturer warranty
- 60-Day Returns — Hassle-free returns, see our return policy for details
- Price Match Guarantee — We match verified prices, see policy for terms

Shure SM4-K-KIT Studio Condenser Microphone Kit


















