The Radial JX44 Air Control is a powerful guitar switching device aimed atconcert touring professionals that employ several guitars, effects and amplifiers on astage. It features four instrument inputs and four amplifier outputs and is equippedwith local and remote-control capabilities to select guitars and amps from multiplepoints on a stage, allowing the guitarist or guitar tech to mute instruments for tuning orset up different amps and effects as needed.

According to Radial president Peter Janis:The JX44 features four instrument inputs and four (to six) amplifier outputs with

remote control capabilities for amps and guitars and mute for tuning. Arear-mountedlocal effects loop for rack-effects and built-in Radial SGI effects loop connects topedalboard up to 300 feet away by adding an off-the-shelf SGI set. A built-in fullyisolated direct box with full re-amplifying capabilities allows acoustic guitars to beconnected on stage and re-recording to be performed in post production. Twooptional remote footswitches may be connected to select guitars or amplifiers.Should the wireless system fail, a panic button re-routes the signal 'hardwire' fromguitar input-Ato amp output-1. Perfect for your next world tour!

“The Radial client base now includessome of the biggest names in the business including Carlos Santana, Buddy Guy,Aerosmith, Toto, Motorhead, Slayer and Def Leppard. When these bands tour, theirguitar technicians are faced with all kinds of challenges: noise from ‘less than ideal’electrical systems; vintage guitar and amps; and wireless systems that can oftenwreak havoc. Many of these bands began using the Radial JD7 studio guitar ampswitcher to solve their on-stage problems. The JD7 is a Class-A distribution amplifierwith Drag™ Control load correction and is equipped with isolated outputs that can be

phase-corrected for various amps.As it was never intended for live use, the JD7 is notequipped with the type of functionality that is required on stage. After consulting withour customers, the direction became clear and this drove us to create the JX44. Weare very proud of what we have achieved and it is without a doubt one of the mostcomplex yet comprehensive pieces of engineering ever made for guitarists.”

Radial Engineering Ltd. · 1638 Kebet Way, Port Coquitlam, BC V3C 5W9 · Tel (604) 942-1001 · Fax (604) 942-1010 · email: info@radialeng.com

PRIMACOUSTIC BROADWAY GETS RAVE REVIEW

AES Fall 2006 Edition

Visit Radial at AESBooth # 1047

The Primacoustic Broadway series of acousticpanels is now shipping and response so far hasbeen very strong. According to national salesmanager Steve McKay:

Broadway panels are made from 6lb per cubicfoot, high density encapsulated fiberglass that isthen covered with an attractive and durable fabric.By limiting the options to 3 colors and four standardpanel sizes, Primacoustic is able to mass-producethe panels and lower the price considerably, so thata basic project studio can now be equipped with 12panels for under $500US retail.

And installation is easy! Various impaling clipsare available to hang the panels on any wallsurface. Simply screw the impalers on the wall andposition the panel at the desired height. If ever youwant to relocate the panels, they simply lift off. Nomore messy glue to deal with!

“Up until now, high-densityfabric-covered acoustic panels have been veryexpensive and therefore, limited to broadcast andhigh-end studio installations. With panels startingat under $50 list, the average person can nowafford to treat their room using the same high-endpanels that the pro's employ.”

RADIAL JX44 AIR CONTROL LAUNCHES AT AES

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Radial Multi-Media Direct BoxRadial Multi-Media Direct Box

Radial Engineering is pleased to announcethat Daniel Lanois, arguably the mosty influentialmusician-engineer-producer today, recentlyadded Radial direct boxes to his recordingarsenal.

In addition to his ground-breaking work withU2, Mr. Lanois has produced and engineeredworks by Bob Dylan, Marianne Faithfull, WillieNelson and Emmylou Harris.

Lanois had this to say about Radial: “

That prettywell sums it up! Thanks Dan!

It isnice to see great sounding, industrial-gradeequipment still being made today!”

Daniel Lanois Picks Radial

The Radial ProAV2 is an over-achieving stereo passive DI designedto interface almost any high-impedance source such as DVDplayers, iPODs, computer sound cards

and musical instruments with lowimpedance mic inputs on a mixing console.

It is equipped with stereo ¼”, RCA, 3.5mminputs and balanced stereo XLR outputs. The

twin transformers convert the impedance,perform the balancing and provide isolation to help

eliminate troublesome ground loops. Perfect forinterfacing consumer audio with professional systems.

Radial Engineering Ltd. · 1638 Kebet Way, Port Coquitlam, BC V3C 5W9 · Tel (604) 942-1001 · Fax (604) 942-1010 · email: info@radialeng.com

Over the past 5 years,Primacoustic has gained a solidfollowing in the home studiomarket with their range of open-cell acoustic panels. The panelsare typically glued to the wallsurface to treat primary andsecondary reflections. Thiseliminates standing waves andflutter echo. But sometimes, folksdo not want to permanently affixthe material to the walls. This iswhere Venice comes in.

Venice is an acoustic panelthat combines the standardPrimacoustic panels with acorrugated plastic backboard.Instead of gluing the panels to thewall, small discreet finishing nailsare used, therefore making it easyto pull the panels off and relocatethem with only minor refinishing.

Panel size is 52” tall x 12”wide. Effective from 500Hz andup. Venice panels come 4 to abox, pre-mounted and glued tothe backboards. Venice; thesimple acoustic system you caninstall in minutes.

PrimacousticVenice DeliversRoman Pillars

The Radial SW8 Switcher is an 8-channel redundant backup switching interfacedesigned for live concert touring and stage shows that employ backing tracks as partof the sound production.

According to company president Peter Janis:The SW8 features two A-B sets of eight input channels with DB25 multipins or

¼” TRS inputs. Eight outputs are DB25 for balanced line-level or mic-level XLRs andtransformer-isolated to eliminate ground loops. A -10dB pad accommodates both+4dB or -10dB levels. Switching is done by depressing the front panel AB selector orauto-switching by recording a drone track and playing it into channel-1 of the SW8.Should the drone disappear, the SW8's alarm LED will illuminate, advising thetechnician a problem is at hand. The SW8 can also automatically toggle to the Binputs as soon as the drone track is lost. A link function accommodates larger 16 or24 track systems. All of this is housed in a single 19” rack space and powered by anexternal 15VDC power supply.

“Today it is common for bands tosupport their live performance with backing tracks as a means to provide theaudience with the type of production that they expect when they hear a record. Forinstance, when Queen performed Bohemian Rhapsody, backing tracks were used toprovide the vocal chorus. This is generally done using one or more stand-alonedigital recorders such as the ones made by Tascam, Alesis, or Radar. Unfortunately,even though these machines are very dependable in the safety of the studio,traveling night after night across the continent in a truck on bumpy roads inevitablytakes its toll and these machines invariably fail due to the inordinate abuse. Whendisaster occurs, a backup recorder is required. The Radial SW8 makes it possible toswitch to an alternate machine either automatically or manually should the need

arise. Before launching the SW8, we consulted a wide number of stage techniciansincluding techs that work with Chick Corea, The Eagles and U2. These guys know allof the ins and outs of road travel and helped us establish a common feature set. Theresult is the Radial SW8.”

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ACOUSTICS 101 FOR STUDIOSJust like large commercial studios, home studios suffer

from acoustical interference that can make it more difficult tomix, especially when surrounded with the sound effects andambiance that now typifies today's stereo and 5.1 surround-sound mixes. In professional studios, the walls arestrategically treated with fabric-covered absorptive panels onthe sides, front, rear and sometimes on the ceilings.

The key to improving intelligibility (or our ability to discernwhat we want to hear and what we do not) is achieved byreducing unwanted reflections from hard wall surfaces. Whathappens is that the direct sound from the speaker arrives at thelistening position first and then the reflected sound arrives afew milliseconds later. These loud reflections cause the brain(human hearing mechanism) to have to ignore the secondsound, thus making us work hard for nothing. In studio, thiseffect is known to contribute to listening fatigue.

The solution is actually quite simple. Sound, especially inthe voice range, is directional. This means that by using simplevectors, you can strategically position acoustic panels wherethey will be most effective. By sitting in the various listeningpositions and simply moving a mirror on the wall to mark theareas where you see the speaker in the mirror, you willestablish the ideal locations on which to position your panels.

The most common surfaces to treat a project studio is onthe side walls in between the reference monitors and thelistening area. These are usually positioned waist-high tocontrol the upper section of the wall, which will be most proneto reflections. By leaving some open space on the wall, youretain some of the natural ambiance of the room, which willyield a more natural sound. Treating either the receive wall orthe transmit wall (behind the speakers) will also help eliminateflutter echo and standing waves that can further deteriorate thesound. This is particularly helpful in square and rectangularshaped rooms where the parallel surfaces work in tandem tocause long trailing echoes.

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To locate the best position for acoustic panels, slide a mirroracross the walls to see the speakers. This will determine theoptimum position for acoustic panel placement.

Once the area has been determined that needs treatment,simply affix Broadway panels to the wall using the impalingclips. The whole process can be done in minutes!

Radial Engineering Ltd. · 1638 Kebet Way, Port Coquitlam, BC V3C 5W9 · Tel (604) 942-1001 · Fax (604) 942-1010 · email: info@radialeng.com

Germany's Microtech-Gefell is expandingits range of hand-made microphones with theGefell M950 wide cardioid. This little giantfeatures a full-sized 1” diaphragm mounted ona triangulated pedestal to eliminate smearfrom nearby body reflections.

The wide cardioid pattern is particularlyadvantageous when recording acousticinstruments where sound is produced frommultiple points. For example, the naturalsound of a guitar is made up of the sound fromthe pick, the resonance from the top, the soundprojecting from the sound hole and thesympathetic vibrations from the strings.

By capturing the whole instrument from asingle mic, the results are much morebalanced and defined tone. The directionalcharacteristic of the cardioid pattern aids tocontrol spill from other sources. In fact, onecould certainly qualify the M950 as a clevercombination of the natural sound of an omniwith the control of a cardioid.

GefellIntrosM950Wide

CardioidCondenser

Let RadialCustom Shopdo the work!

The Radial Custom Shop beganmanufacturing custom cable assemblies andpanels in 1991 and today boasts thousands ofsuccessful clients including Cirque Du Soleil,Sony Broadcast, CBS TV, the Hull Casino andthe Rolling Stones. But don't let these bignames scare you… we offer a complete customrange of solutions that includes simple RCAcables to custom-madeAV panels.

Simply sketch out your needs and fax itthrough to the Radial Custom Shop. Our teamof seasoned professionals will deliver a quoteand delivery schedule to meet your needs.

Tech-File

CBC BROADCASTS WITH GEFELLC B C R a d i o C a n a d a

(Canada's public radio station),recently purchased 15 GefellM930 microphones for on-airuse in their new digital formatstudios. According to CBCEngineering, they tested over 30microphones before selectingthe Gefell M930.

The M930 features a full 1”diaphragm mounted on atriangulated pedestal in thesmallest mic body made today.T h i s r e d u c e s a c o u s t i cturbulence around the mic,delivering a true rendition.Internal electro-optical isolationeliminates ground potentialwhile delivering 80 volts to thecapsule. This results in over140dB of signal handling withless than 7dB-Aof self-noise.

Radial Engineering Ltd. · 1638 Kebet Way, Port Coquitlam, BC V3C 5W9 · Tel (604) 942-1001 · Fax (604) 942-1010 · email: info@radialeng.com

Professional audio interface equipment suchas direct boxes and re-ampers used in livesound and studio recording.

Radial Custom Shop - audio and video cables,panels, snakes and interfaces for recordingand concert touring.

primacoustictm

Acoustic panels, gobos, bass traps anddiffusers for recording, home theatre andbroadcast.

World class transformers and interfaces forhome theatre, recording and live audio andvideo systems.

GefellGefell microphones are handmade inGermany for recording, broadcast, live soundand test and measurement.

MB Quart headphones and headsets for themost demanding audiophiles where addeddurability is needed.

Professional guitar and bass distortion pedals,effects loops, amplifier and cabinet switchersand instrument preamplifiers.

Protective yet highly affordable carry caseswith pick & pluck foam cubes to fit any piece ofgear.

ZEBRACASEPRO AUDIO-VIDEO EQUIPMENT PROTECTION

Made in Canada

Ultra-high performance audio and video cablefor recording, broadcast and audiophiles.

AES exclusive! Primacoustic has launched a new rangeof bass traps in the form of easy to assemble do-it-yourself kits.

According to president Peter Janis:

Two models are offered: The Fulltrap™, which isapproximately 24” wide x 48” high and 8 inches deep and theHalftrap™, which is approximately 12” wide x 48” high and 6”deep. Both traps are made from high-density wood compositewith a black, easy-to-clean melamine finish. The frontabsorptive panel is made from 6lb per cubic foot high-densityencapsulated fiberglass. Behind the panel is a stretchedmembrane that acts as a low frequency resonator. The scienceis based on thermo-dynamic energy transfer, whereby soundpenetrating the Fulltrap causes the glass fibers and membraneto vibrate, which in turn convert the acoustic energy into heat.Estimated low frequency absorption will be between 65Hz and100Hz depending on the final outcome from tests.

Each kit contains the absorptive panel, resonantmembrane, the sides and top, easy-build hardware and wallmounting bracket. Building a Fulltrap™ takes about 15 minutesfrom start to finish!

“The challenge withbass traps is that for them to be effective, they must be large,deep and incorporate an air cavity where the bass can beabsorbed. Because of the size, they become expensive toship. For this reason, most acousticians tend to suggest built-in bass traps as part of the room design, which of course makesthem somewhat expensive. We looked at the huge successIkea is enjoying by providing easy-to-assemble kits that theaverage person can put together with only a screwdriver,stapler and hammer. We then applied this concept to creating abass trap and the result is our new Primacoustic Fulltrap™.”

PRIMACOUSTIC FULLTRAPAMAZING LOW FREQUENCY ABSORPTION ATAN AMAZING LOW PRICE!