sE Electronics BL8 Boundary Microphone

$ 339.00 $ 269.00

Delivering an all-metal, tank-like build quality and extreme flexibility for a range of live and studio applications, the BL8 Boundary Microphone from sE Electronics sports a half-cardioid, 3-micron true condenser diaphragm for exceptional sensitivity in the low-frequency range, making it ideal for kick drum miking. With onboard controls for two different low-cut frequencies (80 or 160 Hz), two different attenuation levels (-10 or -20 dB), and two different EQ voicings (Classic or Modern), the BL8 is versatile indeed, deftly handling ambient room miking, pianos, and more with exceptional clarity.

The transformerless, class-A circuitry in the BL8 ensures enough headroom to avoid distortion and an ultralow-noise signal with plentiful transparency. The tour-ready enclosure sports a dent-proof grille and gold-plated XLR contacts to survive the rigors of the road, and the durable design can also support the Kelly Shu Flatz Isolation System, ideal for heavy touring applications. This microphone includes a carry pouch for safe transport.

Low Cut
This switch allows you to curb low-frequency response at two different frequencies (80 or 160 Hz) or leave it flat. For applications like room miking or speech, the low-cut switch reduces unwanted footfall noise and rumble. It can also be used to minimize proximity effect.

Attenuation Pad
The attenuation pad reduces the microphone's signal by 10 or 20 dBs when activated, preventing loud sources from overloading your mixer, preamp, or audio interface. In its center position, the pad is deactivated, and the microphone's output is unaffected.

It is recommended that you initially activate the 10 dB attenuation when miking a kick drum. For very loud sources, you may need to activate the 20 dB attenuation. Moderately loud sources should be fine at the 0 dB setting.

The ideal studio kick drum tone is often different than preferences in a live sound environment. Similar to the award-winning kick-drum mic, the V KICK, the BL8 offers Classic and Modern character voicings.

These options both cut and shape the low-mid frequencies to emphasize transients and punch. In its center position, the capsule's neutral response is retained, which is ideal for a plethora of other applications.

Swappable Capsule
The capsule inside the BL8 can be swapped for an alternative, such as the sE8 omnidirectional capsule, to allow for an even greater range of applications. Simply turn the screw at the center of the mic's grille until its loose, remove the capsule retainer screw, and replace.

Surface Mounting
Using screws, the BL8 can be mounted to a surface, wall, ceiling, or the lid of a grand piano. Simply open the microphone as you would if you were changing the capsule.

The two mounting points are covered with black stickers; remove them with a sharp tool. Then, use a sharp tool to punch through the underlying protective foil, and mount as desired with screws (not included).

Box Contains

    sE Electronics BL8 Boundary Microphone
  • 1 x sE Electronics Microphone

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Easy 30 Day Return Policy

If you are dissatisfied with your purchase for any reason, you may return it to Kellards within 30 days of the purchase date, subject to the conditions and exclusions below.

You may initiate a return or exchange by requesting an RMA at

Securely affix your return label to the outside of the shipping package. Return shipping fees are the responsibility of the customer. We recommend you ship via insured ground service with a tracking number. We cannot be responsible for lost packages.

Return Address

Kellards Return
3237 Greenpoint Ave.
Long Island City NY 11101

Eligibility Conditions

Please read conditions below. If all conditions are not met, Kellards reserves the right to refuse the return or to charge a minimum 15% restocking fee. All returned items must be in new condition, in their original unaltered box (including an intact UPC code) and must include all packing material, blank warranty cards, manuals and accessories. Kellards can only refund the original purchase price. Shipping and handling fees are nonrefundable.

Nonreturnable Items

  • Electronic software downloads
  • Opened consumable items (e.g., film, tapes, paper, bulbs, CD, DVDs, ink cartridges, etc.)
  • Underwater equipment that has been submerged

Defective or Damaged Items

Defective items may be repaired, exchanged or refunded at our discretion for the same model or manufacturer's equivalent model.


Please allow 3-5 business days for mail-in exchanges to be processed.

Refunds & Credits

Once we receive and inspect your item(s), we will credit your account. Please allow 5-7 days for a credit to appear on your account. In most cases, we will issue your refund in the same way you made the original purchase.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.