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sE Electronics guitaRF Reflexion Filter  From sE

The guitaRF® helps get your amp sounding just the way you want.

sE Electronics


Retail:  $249.00

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Manufacturer's Description from sE

The guitaRF acts as an RF (Reflexion Filter®), an isolator, a double mic stand, and fine-positioning hardware for both your favorite large-diaphragm condenser or ribbon mic AND a dynamic or small-capsule mic. All in one piece of gear, with the ability to perfectly phase-align the two capsules for maximum impact.

For years now, some of our biggest FOH engineer clients (running sound for Tom Petty & The Heartbreakers, Black Sabbath, Paramore, My Morning Jacket, and more) have known that putting a Reflexion Filter in front of their amp cabinets can help reduce stage bleed into their guitar mics. This is especially true with some of our favorite guitar mics like the VR1 and RNR1 ribbons, since they naturally have a figure-8 pattern that leaves them open to whatever else is happening on stage.

This doesn't just help the FOH mix either. Using an RF on a guitar cab or drums can make the multitrack of a live show significantly easier to mix.

Until now, our FOH engineer clients have had to devise their own custom-assembled solutions to help deal with this problem. Now, enter the guitaRF.

With the guitaRF, these custom rigs are now available as an off-the-shelf solution so anyone can get the guitar sounds they're looking for, with minimal stage bleed and coloration.


Not just for live sound.

The guitaRF is equally useful in the studio as well - in fact, when the original Reflexion Filter PRO debuted in 2006, Sound on Sound magazine had this to say:

"I used the Reflexion Filter as a mini-gobo, which made the guitar sound as if it was about half an inch from your face. In my view this product really makes it that bit easier to get a 'pro-studio' sound at home."

- Steve Levine, Sound On Sound (June '06)


...and not just for guitars either.



When you're tracking a singer-songwriter, oftentimes you get the best performance if they sing and play at the same time. But if you want to edit, overdub, or process the vocals and guitars separately - e.g. with delay on one but not the other - it can be challenging if there's too much vocal bleed into the guitar tracks, or vice versa.

With the guitaRF, you can double-mic the acoustic with your favorite small-diaphragm condenser like our sE5 for a crisp high-end, and a ribbon mic like our X1 R for a thick, rich midrange. Then you can angle the guitaRF underneath your vocal mic, and keep the singer's voice from being picked up by either of your guitar mics.

TIP: Try panning your two guitar mics for a wider acoustic guitar spread in a sparse mix.



The guitaRF's included base stand is a perfect height for kick drum. To help keep room or stage bleed out of your outside kick mic, try setting it up anywhere from right in front of the drum head to several feet back.

If you're feeling adventurous, you can remove the rubber-finned pass-through grip (just push it through from the hard back side of the filter towards the foam-lined inside), stick a mic stand boom arm through the hole, and get an inside kick mic AND an outside kick mic in place (see photos below).

TIP: Mounting the guitaRF on a mic stand also allows you to angle it, which may help decrease bleed from the snare and high-hat.



Too much high-hat getting into your snare drum mic? Mount the guitaRF on a mic stand's boom arm, and position it at an angle between the snare and high-hat to reduce the hat bleed into your snare tracks. Then use your favorite dynamic or small-diaphragm condenser (inserted through the guitaRF's pass-through hole) on your snare as usual.



The best way to record a bluegrass band or small jazz ensemble is almost always in a single room, playing together. Some bleed between sources can be fine - and can even help gel the tracks together - but sometimes you want a little more isolation.

This can be especially challenging with upright bass. The guitaRF is perfect for double-miking an acoustic bass and keeping the drums, guitar, and singer out of these mics. You can even try angling one mic towards an F-hole and another towards the bridge for blending purposes.

TIP: Try a condenser and a ribbon for a great blend of crisp highs and full, natural lows.



Remember - there's no "wrong" way to use the guitaRF. If you just need to keep the sound of a room out of your recording, it will help with that. If you just need to quickly double-mic something, it will help with that. Feel free to experiment, and try it on any source you like!



The LDC/ribbon mounting hardware is adjustable across three axes - vertical, depth, and lateral - so you can find the perfect spot for any mic, whether in a shockmount or just on a clip.

This allows you to position both capsules perfectly in phase - or to spread them apart to capture the sounds of both the edge of the cone and the dust cap.

The entire filter + mic assembly can also be moved up and down to position it precisely over the perfect spot on the speaker cone - or, if needed, the filter can be removed from its base and mounted on any mic stand for complete flexibility.



Acoustically, the guitaRF is very similar to our best-selling RF-X, with a four-layer acoustic filter design comprised of the vented outer composite panel, a layer of acoustic-grade wool, an air gap to help with low-frequency isolation, and an inner acoustic foam layer.

The guitaRF also has an integrated pass-through hole with a rubber-finned grip that securely holds just about any dynamic or small-capsule mic on the market.

A double-cable clip is also provided that screws in to the back of the filter, so you don't need to worry about dangling mic cables that could accidentally tug your mics out of position.

Get your mics placed perfectly. Get the sounds you want. Get that stage bleed out of your ribbons. Get a guitaRF.

sE Electronics

About Manufacturer

The sE Electronics story begins withMr Siwei Zou, a hugely talented classical musician from Shanghai who won a top place at the Shanghai Conservatory and went on to become a highly successful player, conductor and composer. He worked closely with the Shanghai Opera and the Shanghai Philharmonic Orchestra as both conductor and recording artist,with several hugely successful classical hit recordings to his name. In 1987 he was invited by California Sonoma State University as a visiting Scholar to serve on the faculty. He continued to teach counterpoint and orchestration as a faculty member in the Music Department at the University. He also studied recording technology under Grammy Awards nominee Professor Warren Dennis Kahn. The sE commitment to exceptional quality can be directly attributed to the company founder Mr. Zou, who in his distinguished career has developed an ingrained instinct and desire for perfection. Wishing to bring this drive for artistic and creative perfection to bear in a tangible way, Siwei started his own microphone manufacturing company. Working with a team of his own top engineers, and experts in the field of electrical engineering at Shanghai University, Siwei designed, built and tested a whole range of new and innovative products. Shunning the common practise of western manufacturers re-branding cheap Chinese microphones, Siwei designed and built his own range of microphones which are now manufactured in his state-of-the-art facility in Shanghai., the ultra-modern face of new China. sE Electronics make only their own products, which means dedication to detail in every aspect of performance and styling without compromise. All sE mic capsules are entirely built by hand. Even the chassis and flight cases are built in-house. In fact when you own an sE microphone you can be confident that every aspect of both the mic and its accessories has had the same unrivalled level of care and passion right throughout its design and manufacture. Even to the level that every single microphone that leaves the facility has undergone a personal listening test rather than simply being put through a machine - and it shows. Launched in Europe in 2003, sE Electronics condenser mics are now the number one brand in the UK and the fastest growing microphone brand in Europe. The brand, in its short history, has already won almost every major European award possible for excellence including the Future Publishing Readers Poll ýMic of the Yearý Award. Although sE is a new line to the USA in 2004, both the sE Gemini and Icis have already won the coveted ýMix Certified Hitý Award and the range is fast finding the same unanimous acclaim and passionate following that it has in Europe. sE is so confident youýll be able to really hear the difference, that they offer a completely free loan service for all of their products! The range includes three superbly tailored ýpencilý instrument mics, two large diaphragm solid-state condensers, two incredible performance tube mics, and the worldýs first dual tube, transformerless, studio mic in the form of the award-winning Gemini.



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