Item # 108256280 | Customer Ratings: ( 4 Based on 5 reviews)

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MXL 840 Small Diaphragm Instrument Microphones (Pair)
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A dynamic duo of condenser mics made for getting every nuance of your sound during recording.

This MXL 840 pair captures every detail of instrument recordings. These twin mics have small diaphragm capsules and cardioid polar patterns for precise directionality. A fast, transient response makes the 840 pair ideal for drum overheads. Acoustic guitars, pianos and strings sound just as rich, and high SPL handling capabilities make these mics perfect for recording horns too. Position each 840 microphone in the perfect spot using the included shockmounts for complete isolation from room vibrations.

MXL 840 Small Diaphragm Instrument Microphones (Pair) Features:

  • Includes shockmounts for perfect placement
    Ideal for drum overheads, acoustic guitars, pianos and strings
    Cardioid polar pattern to focus in on the sweet spot
    Fast transient response for extra accuracy
    Small-diaphragm capsule that captures extra detail
    Internally wired with Mogami
    Includes two shockmounts and a microfiber cleaning cloth
    Sharkskin and nickel finish

MXL 840 Small Diaphragm Instrument Microphones (Pair) Specifications:

  • Type: Pressure gradient condenser
    Capsule size: 22mm
    Frequency response: 30Hz-20kHz
    Polar pattern: Cardioid
    Sensitivity: 15mV/Pa
    Impedence: 110Ω
    Equivalent noise: 20dB (A-weighted IEC 268-4)
    S/N ratio: 74dB (Ref. 1 Pa A-weighted)
    Max SPL for .5% THD: 137dB
    Power requirements: Phantom power 48V ± 4V
    Weight: .2lb/280g
    Size: 22mm x 134mm (.87" x 5.28")

MXL 840 Small Diaphragm Instrument Microphones (Pair)

3 year parts and labor warranty. (MXL990 and MXL991 have a 1 Year Parts and Labor Warranty)

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 5 reviews)
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  • Affordable solution for drummers with home studios.

    As reviewed by Christian Francis on 1/10/2014

    I picked up a pair of MXL 840's about 6 months ago to serve as overheads for my drum kit in my home studio. The results have been surprisingly good using a modified Glyn Johns 4 mic set up. Sound wise, the MXL 840's are clean and clear with no muddiness, while at the same time not being harsh or brittle sounding. Now I'm not saying to throw out your $1,000 C414s, but the 840's do prove that you don't have to spend thousands to get a decent sound. I have also paired a single 840 with a Rode NT2a, a large diaphragm condenser, to record my acoustics with great results as well. Admittedly, I have since picked up a second NT2, so those will be my overhead pair, allowing me to use the 840s as spot mics for the hats, under the snare, a distance stereo pair, or anything else that needs a little something extra. At $150 for 2 condenser mics and 2 metal shock mounts, you really can't go wrong with these little guys.

    2 of 2 people found this review helpful.
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  • MXL 840 Small Diaphragm Microphones

    As reviewed by Clayton Bulice on 1/4/2013

    The phones were more than I expected from the box. I expected two microphones alone, but they also came with shockmounts. It has made a huge difference in the quality of sound coming through the microphones. We have used them for amplifying our church choir. The difference was noticed from the first use two ways. First, the recording was 100% better than with 2 microphones standing in front of the choir. (We record directly through the sound board). Second, the congregation could hear better (louder) and more clearly than before. This is such a bargain. And the staff at Guitar Center were so knowledgeable about what would work in our situation.

    2 of 2 people found this review helpful.
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  • Good Value for Price -- Effective If Properly Implemented

    As reviewed by Adam Lansky on 9/26/2013

    The MXL 840 is an entry-level small diaphragm condenser microphone that works well as an instrument mic on acoustic guitar, auxiliary percussion, violin, drum overheads & potentially piano. They have a generally "bright" sound but are certainly not "brittle". In a pinch, it can even be used as a vocal mic if places 45 degrees off-axis from the vocalist -- keep it about 8" away from the vocalist's mouth & aim at the forehead. USE A POP FILTER! As an professional audio engineer & music producer, I own two stereo pairs of the MXL 840. They are not my go-to mics for instrumentation, but I find myself using them as spot mics in orchestral performances with good results. They come in a foam-padded box complete with shockmounts & extra suspension bands. The most important thing to keep in mind is that 99% of the time... YOU GET WHAT YOU PAY FOR! If you are plugging this microphone directly into an interface without an outboard preamp, you can expect average sound quality, but it still is superior to a USB microphone. A good cable matters: Cheap cables = cheap sound. Drop some dollars on a XLR cable with quad-conductors & good shielding like Mogami or Live Wire Elite. Although these mics may not produce any award-winning recordings, they are perfect for beginning recordists that need to record stereo in good detail!

    1 of 1 people found this review helpful.
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Questions about the 840 Small Diaphragm Instrument Microphones (Pair) (108256280)

PO Box 4769
Westlake Village, CA 91359
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