Shure KSM44
A side-address studio condenser that carries a 492-gram heft and a switchable trio of polar patterns — the workhorse Shure built to be the last large-diaphragm mic in the locker.
Overview
The first thing a collector notices is the weight. At 492 g (17.4 oz.), the KSM44 sits on a stand like it means it, and the aluminum carrying case it ships in — the A44ASC — is built to travel. This is a side-address, externally-biased condenser with a dual-diaphragm capsule, and the manual describes those diaphragms as dual 1-inch, ultra-thin 2.5 μm, 24-karat gold-layered, low-mass Mylar. That combination is the reason the mic behaves the way it does: the low-mass diaphragm moves quickly, and the dual-diaphragm design lets Shure offer three patterns from one capsule.
Those three patterns — cardioid, omnidirectional, and bidirectional — are selectable on the body, and they're the heart of the mic's flexibility. A cardioid setting for a vocal, omni for a room or an ensemble, figure-8 for a mid-side pair or a Blumlein array. The frequency response is quoted at 20 to 20,000 Hz, and the output impedance is a low 50 Ω, which means the mic will happily drive long cable runs without drama. Shure recommends a minimum input load impedance of 1000 Ω at the preamp, noting that higher impedance improves the performance figures — a useful reminder that this mic rewards a decent front end.
The feature set is where the KSM44 shows its studio manners. There's a switchable 15 dB attenuator for close-miking a kick drum or a screaming guitar cab, and a three-position low-frequency filter — flat, a gentle –6 dB/octave rolloff below 115 Hz, or a steeper –18 dB/octave below 80 Hz. That third position is the one engineers reach for to tame proximity effect on a close vocal or to kill stand rumble. Shure also built in a subsonic filter that eliminates mechanical vibration below 17 Hz, and an integrated three-stage "pop" protection grille to keep plosives off the capsule. The internal shock mount is there to decouple the capsule from handling and stand noise, and the furnished ShureLock Cristal elastic shock mount (A44ASM) does the same job at the stand interface.
The electronics are worth a paragraph of their own. Shure's Prethos Advanced Preamplifier Technology is the headline, and the manual credits it with extremely low self-noise, wide dynamic range, fast transient response, and ultra-low distortion. The common-mode rejection is quoted at greater than 50 dB across 10 to 100,000 Hz, and the mic is specified to suppress RF interference. Inside, Shure used gold-plated internal and external connectors and premium components — the kind of detail that matters more to a tech than to a buyer, but that shows up in a mic's long-term reliability. Power comes from 11–52 V DC phantom power (IEC 61938), drawing a maximum of 5.8 mA; the manual notes the mic performs best at 48 V and will run with slightly reduced headroom and sensitivity down to 11 V. The output is a balanced three-pin XLR, male, with positive pressure on the diaphragm producing positive voltage on pin 2 relative to pin 3.
The applications Shure lists read like a studio checklist: solo and background voice, voice-over and broadcast; acoustic instruments including piano, guitar, drums, percussion, and strings; brass and woodwind; low-frequency sources like double bass, electric bass, and kick drum; overheads for drums and percussion; choral and orchestral ensembles; and room ambience on a guitar amp or drum kit. That breadth is the point of a mic like this — one capsule, three patterns, and enough SPL handling to survive a close kick drum without flinching.
Reception in the period press was warm. Mix (May 2004, p.51) ran a quote from producer Eddie Kramer calling the KSM44 a great all-around condenser with amazing presence on vocals, and the same review noted an excellent natural quality, good presence, and a nice open top end. Pro Audio Review (January 2001, p.16) put the retail price at $1,340, with a street price expected well below $1,000 — which the reviewer called great value. That same review drew a deliberate line between the KSM44 and its sibling the KSM32, concluding that while the two look alike and are clearly related, they're different enough that a serious collection wants both. It's a fair read: the KSM44's multi-pattern flexibility and its pad and filter switches make it the more versatile of the pair, and the period pricing made it a serious alternative to the large-diaphragm condensers that dominated the market.
For collectors and studio owners today, the KSM44 is a mic that has aged gracefully. The furnished accessories — the ShureLock Cristal shock mount, the swivel adapter, the aluminum case, the velveteen pouch, and the spare elastic cords (RK383) — are the parts that go missing first, so a complete example is worth more than a bare mic. The optional A32WS windscreen, A32ZB padded bag, PS-6 Popper Stopper, and the A42PF magnetic pop filter with A42SM rubber shock mount are all still catalogued as accessories, which helps keep a working example serviceable. The mic is CE-marked and conforms to the European EMC Directive, and Shure's European support address in Heilbronn is printed in the manual for anyone chasing parts.
What the KSM44 asks of an owner is simple: a preamp that meets the 1000 Ω minimum, a balanced XLR cable, and 48 V phantom power. What it gives back is a mic that covers vocals, acoustic instruments, overheads, and room ambience without apology, with a self-noise figure and a dynamic range that the Prethos preamp was specifically built to deliver. It's not a small mic, and it's not a cheap one on the used market when complete — but it's the kind of tool that earns its stand space.
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.