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Audio Technica ATM350U Clip-on Instrument Microphone

Audio Technica ATM350U Clip-on Instrument Microphone

The ATM350U is a professional-grade instrument microphone for the bass clarinet, and is a step up from the entry-level Pro35. Its frequency response will ensure your low notes resonate fully, and its high end is nice and open: 40Hz-20kHz. The ATM350UL has a longer goose neck, and is ideal if you're looking for a single-mic setup. If you're going for a dual-mic setup, you can get either the ATM350U or the ATM350UL. Another cool feature of the microphone is that its rugged (metal) universal clamp provides 360-degree swiveling (and tightening) of the goose neck, has rubberized feet to (slightly) dampen instrument handling noise, and has a locking screw so the clamp can't accidentally be opened when you're waltzing around the stage.

The ATM350U has a cardioid pickup pattern, which means it picks up the sound coming from in front of the microphone, and rejects sound from behind. This is generally what you want in a live performance situation.

Now, the bass clarinet emits sound across the full length of the instrument, not just the bell. And, because the instrument is so long, you will likely want to purchase two of these microphones, and affix them to both joints of your instrument. But, if that's out of your current budget, you can absolutely make do with the microphone clipped to the bell, pointing upward at your left hand (see image below).

If you're curious how this sounds on a bass clarinet, you're in luck. Below you can listen to recordings of this microphone in a dual setup (two mics with the clamp and extension bar), solo setup (one mic clipped to the bell, point upward), and compare it to the studio microphone I use for all my recording.

Please note: you will need a mixer with a 48v phantom power supply, or this piece of gear (which I personally use and highly recommend). Most live concert halls/clubs can easily provide phantom power (so you won't need to buy anything for that), but most speakers/amplifiers do NOT. So, in other words, you can't just plug this into your stereo system, or guitar amp, or computer, and expect it to work. (Just want to make that clear! For $119, the ART tube preamp is a great value that will serve you well for a long, long time, so again, I recommend it!)

Finally, if you'd like to try these for yourself but aren't sure if you need one or two (or neither!), you can try these microphones for 10 days. If you would like to return one (or both!) you can, do so if you send me an email first. Microphones are subject to a nominal 3% restocking fee. (which is $9 plus shipping, so yeah, you've got nothing really to lose here!)

Gooseneck length
Prix habituel $300.00
Prix habituel Prix promotionnel $300.00
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SINGLE MICROPHONE SETUP If you’re starting off, you can try one microphone to see if it fits your needs. (You can always get another one.) To position a single microphone on a bass clarinet, regardless of whether it’s a Low Eb or Low C bass, clip it to the bell, and aim it upward. (NOT down toward the bell, unless you like a harsh sound, and a VERY loud low note.) Experiment with positioning to find your “sweet spot.” Refer to the “Single-mic setup” image on the right as a starting point. DUAL MICROPHONE SETUP A dual microphone setup will present a more even volume across all registers, and will fill out the instrument’s low end. Additionally, using the clamp and extension reduces key noise (a low frequency rumble you hear when you press or release the instrument’s keys). If you choose to get two microphones (and the clamp/extension rod), aim the top microphone at your left hand, positioning the capsule about 5-8 inches (12-20 cm) from the instrument. The bottom microphone should be positioned so it is aiming at the SIDE of the lower pad stack, more-or-less toward the Low E tonehole, again at a distance of 5-8 inches (12-20 cm).

Now, here are recordings of the ATM350U with both a single mic setup and a dual mic setup. Audio files listed as “Dry” have no EQ or effects added; those listed as “Reverb Added” have no EQ added, but have reverb added.

And for comparison, here are recordings of the Pro35 instrument microphone I also sell.

For reference, below are recordings of the sE Gemini II Tube microphone I have used for studio recording

Customer Reviews

Based on 1 review
Windy Dankoff

Earspasm is one of the best reference sites for the bass clarinetist. The recordings are useful and inspiring. Michael does a great job of presentation for his products. If I decide to go "pro" quality, he's the one I'll call on. -- Windy in Santa Fe