Custom Bass Guitar Amplifiers, Speakers, Cabinets, by Euphonic Audio

1491 Eryn Circle
Suwanee, GA 30024

Telephone: (678) 474-9636

EA Bass Guitar Amps and Cabs

MIXED COMPANY bassist Doug McAlexander switched to Euphonic Audio amplifiers and cabinets after 21 years. Doug is a freelance bassist who makes his living working live shows and studio recording sessions. He, like many other bass players, was always on the lookout for smaller cabinets that didn't sacrifice tone. According to Doug, Leland Sklar, Kim Stone, Michael Rhodes, and others, Euphonic Audio delivers the best tone on the planet. Doug said he would have purchased EA just for the tone, no matter what size. But it just so happens that they are extremely small and easily portable. Doug's entire rig fits behind the rear seat of his mini-van and still allows room for the entire family to travel comfortably.

The ultimate test for Doug was an orchestral gig that he was engaged for during the entire month of December. He explains: "Boomy rooms are always a nightmare for bassists. When we try to adjust our rig so we can hear, the sound man or conductor says we're too loud. The real problem is the room. However, "hot spots" in bass cabinets can cause certain frequencies to jump out and react to the room in such a way that the bass seems too loud. But if you turn down to compensate, you lose clarity, especially on the high strings. EA cabinets don't have these hot spots! They are the only bass cabinets made that employ "transmission line technology", a complex engineering and manufacturing feat that eliminates parasitic resonances. I was able to experience the difference first hand right after I got my first EA combo. I was in this concert hall fit for a choir, not a band. It has a high vaulted ceiling made of hardwood. There was a HUGE bass build-up in the center of the room, right where the soundman was located. I was using the house combo (a reputable brand) and I couldn't distinguish one note from another. The soundman said I was too loud. I decided I was not going to go through this for an entire month. I politely left the stage with their combo and returned with my Euphonic Audio combo. I had total clarity without high volume. The concertmaster walked over to me after the performance and wanted to know what I had done. He said that I had the best bass tone he had ever heard, and yet it wasn't overpowering. When he saw the "little guy" he was amazed and decided that he needed one for his concert hall. Enough said! I put my Eden Cabinets up for sale shortly thereafter."

INDEX (Click text to advance to area of interest)

Photos and Specifications
The Magic Formula behind EA
Price List
Testimonial
Ordering Information

Euphonic Audio Speakers, Amps, and Combos

(Click photo for detailed specs.)

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The "Magic Formula" behind EA

"Four on the Floor" - Transmission Line Cabinets

Imagine a tuba stuffed into a rectangular box. The tuba’s mouthpiece is mounted to the rear side of the woofer. That is the concept of the Transmission Line Cabinet. In a transmission line, the sound wave from the back of the woofer is channeled down a long pathway filled with a fibrous bundle of wool or another synthetic material. Transmission line cabinets can be designed to have a smoother and more extended low frequency output than a corresponding vented enclosure given the same internal volume.

In EA’s Transmission Line Cabinets very low frequencies exit the end of the transmission line. This can extend the low frequency response one-half octave below the fundamental resonance of the driver.

In EA’s Transmission Line Cabinets, the back wave of the woofer does not bounce off an interior wall and radiate back into the room through the thin cone of the woofer as in most sealed or ported enclosures. These multiple echoes color the sound. Without these multiple echoes the EA Transmission Line Cabinets produce an extremely clean and accurate sound.

There is less pressure in a transmission line to excite strong enclosure resonance as in a sealed or ported box. In sealed or ported cabinets, enclosure resonances can usually only be controlled, not eliminated as in EA’s Transmission Line Cabinets.

The additional output provided by the transmission line is accomplished by modifying the cabinet impedance (load seen by the amplifier). The impedance of a cabinet varies with frequency. The nominal impedance is generally 4 or 8 ohms. This is the impedance of the cabinet at a fixed frequency (250Hz is a sensible frequency to use since it will give the same result whether the cabinet is a closed box, vented or a transmission line). The impedance of the vented 2x10 cabinet at 41Hz (open E string) is 11 ohms and the impedance of the transmission line 2x10 cabinet at 41Hz is 9 ohms. The cabinet volume and drivers are identical but the amplifier is now supplying 22% more power at 41Hz to the transmission line cabinet.

Finally, the Transmission line cabinets can be tuned over a broad spectrum where the vented enclosure is tuned over a narrow spectrum. Using the same two cabinets in the previous example, the impedance of the vented 2x10 at 31Hz (open B string) is 20 ohms and the impedance of the transmission line enclosure is 9 ohms. At 31Hz the amplifier is supplying 122% more power to the transmission line enclosure. This would account for the additional 4dB additional output that the transmission line cabinet has over the vented cabinet.

Together, the extended low frequency response, the lack of multiple echoes from the inside of the box, the elimination of wall resonance, cabinet impedance and cabinet tuning account for the extremely clean, well controlled and powerful sound in all of EA’s Transmission Line Cabinets.

Currently EA is the only manufacturer of Transmission Line Cabinets for Musical Instrument applications. The widespread use of transmission lines in musical instrument cabinets is not evident due to the added design and engineering complexity. The manufacturing of a transmission line enclosure entails the use of jigs or the more preferred method of using a Computer Numerical Control (CNC) router to machine grooves in the panels to precisely locate the various internal baffles. Currently there is not an off the shelf program or set of tables for designing transmission line enclosures due to the complex factors of a transmission line cabinet.

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Price List

This is "boutique" gear. Allow 30-90 days delivery - prepaid orders get priority.

*Part #*	Description	MSRP	Our Price	Qty.	Purchase?
EA-NL-210	2 x 10" plus tweeter bass speaker cabinet, 500W, 8-Ohms	US$1,195	US$895
EA-NM-410	4 x 10" plus tweeter bass speaker cabinet, 1000W, 8-Ohms, w/casters	US$1,795	US$1,345
EA-CXL-112E	1 x 12" coaxial bass speaker cabinet, 350W, 8-Ohms, lightweight	US$895	US$669
EA-WZ-112E	1 x 12" Wizzy Series lighweight bass speaker cabinet, 200W, 4-Ohms	US$645	US$479
EA-WZ-112P	1 x 12" Wizzy Series lighweight bass speaker cabinet, 200W self-powered speaker for use with your favorite preamp	US$1,445	US$1,045
EA-iAMP-200	200W into 4-Ohms bass amplifier	US$995	US$745
EA-iAMP-200-Combo	1 x 12" Wizzy cabinet and iAMP-200 amplifier Amp and cabinet shipped separately.	US$1,645	US$1,195
EA-iAMP-500	500W into 4-Ohms bass amplifier	US$1,195	US$895
EA-iAMP-500-Combo	1 x 12" Wizzy cabinet and iAMP-500 amplifier Amp and cabinet shipped separately.	US$1,845	US$1,345
EA-iAMP-800	800W into 4-Ohms bass amplifier	US$1,495	US$1,119
EA-iAMP-800-Combo	1 x 12" CXL cabinet and iAMP-800 amplifier (500W into 8-Ohms) Amp and cabinet shipped separately.	US$2,445	US$1,795
EA-i200-PC	Padded Gig Bag for iAMP-200	US$104	US$78
EA-i500-PC	Padded Gig Bag for iAMP-500	US$104	US$78
EA-i800-PC	Padded Gig Bag for iAMP-800	US$119	US$89.25
EA-112-PC	Padded Case for CXL-112	US$99	US$74.25
EA-210-PC	Padded Case for NL-210	US$99	US$74.25
EA-410-PC	Padded Case for NM-410	US$99	US$74.25
EA-WZ112-PC	Padded Case for WZ-112	US$99	US$74.25
EA-WZ112P-PC	Padded Case for WZ-112 Powered	US$99	US$74.25
EA-i200500-RE	Rack Ear Kit for iAMP-200/500	US$49	US$36

Prices subject to change without notice.

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Testimonial

Dear Doug,

I appreciate the fact that, because of you, I now have the best Pro quality equipment! Recently I was in Guitar Center. I played a $6000 Fodera, a $3300 Zon, and a few other basses. None of them had the versatility, comfort, overall tone, and easy playability of my Roscoe basses. Likewise with the Thomastik-Infeld hand-made strings and Euphonic Audio bass speaker cabinets. The SWR rig that I was playing out of came no where close to the accurate sound that my i-Amp350 gives me. The kicker was, the SWR cabinet had eight 10-inch speakers and yet could not out-perform the EA with its single coaxial 10-inch!!!!!!!!

I can honestly say that because of your ministry and professional support I have grown as a bassist and overall musician. What I like about you is your frankness and your ability to bring about the truth of the Gospel and the music industry and you're not afraid to share it with people. I also like how you take your ideas and put them into existence, like making the Roscoe basses and the other Pro quality equipment you use available to others at reduced prices. (I think selling the Roscoe basses was my idea!!! smile ha! ha!) But seriously Doug, from the bottom of my heart I say thanks!!! Here are a few pictures of my Roscoes and me playing them for your use to promote your endeavors with Keith and whatever. Don't use them as a dart board!!!!

Bassist Cedric Sanders with Nashville recording artists, David and Nicole Binion Here I'm with Nashville recording artists David and Nicole Binion.

Fretted: exhibition quilt over Honduras mahogany, estate ivory nut and Brazilian rosewood fingerboard.

Fretless: quilt maple over swamp ash with lined birdseye diamondwood fingerboard. All with Thomastik strings of course. Thanks to being spoiled by playing through Professional Bassist Douglas McAlexander's collection of Finely Handcrafted Roscoe Basses!!!

God Bless,

Cedric Sanders

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Ordering Information

To place an order, click Add To Cart. Verify all the items you want are listed in your cart along with the desired quantities, then click Print to order by mail (pay by check or money order) or Process order online (for credit card orders). Enter your billing address (exactly as it appears on your credit card statement), daytime phone number, and shipping address, if different from your billing address, then click Continue. The exact price, including shipping and handling, will be calculated. You can then print out the order form and mail your payment (check or money order in U.S. funds payable to Arsis Productions) to 1491 Eryn Circle, Suwanee, GA 30024, or enter your credit card information to process your order immediately. Your order will be shipped promptly. If we are temporarily out of stock (we try to keep CXL-112's in stock - but due to high demand they aren't always available), we will ship as soon as the product is available.

NOTICE: All sales shall be considered as final. No returns. Please consult manufacturer for warranty claims. Prices subject to change without notice.

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To schedule a time to audition a bass amp or cabinet, or to get a price quote, call Arsis Productions at (678) 474-9636.

Discounted Thomastik-Infeld Guitar and Bass Strings

Discounted Roscoe Custom Bass Guitars

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