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M-Audio Studiophile BX8a Deluxe 130-watt Bi-amplified Studio Reference Monitors

3.9 out of 5 stars 35 customer reviews

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  • Exceptional driver integration
  • 1-1/4-inch waveguide-loaded high-frequency drivers
  • 8? Kevlar low-frequency drivers
  • 130 watts of bi-amplified power with crossover
  • Magnetic shielding
This item’s packaging will indicate what is inside and cannot be hidden.
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Product Description

Product Description

Recording professionals around the world trust M-Audio Studiophile reference monitors for exceptional sonic accuracy. The new Studiophile BX8a Deluxe system builds on this legacy with new waveguides and enhanced driver integration for greater high-frequency clarity and refined sound. The magnetically shielded monitors feature 8" curved Kevlar low-frequency drivers plus high-temperature voice coils and damped rubber surrounds for durability and fidelity. The 1-1/4" natural silk, waveguide-loaded tweeters deliver a high end that's both clear and easy on the ears. Custom-tuned crossovers distribute 130 watts of bi-amplified power for optimal frequency handling by each driver. Deluxe edition The Studiophile BX8a Deluxe monitors update the best-selling M-Audio BX8a system with a variety of enhancements. The new waveguide delivers a cleaner sound. Custom amplifier tuning enhances the integration between the high and low frequencies, delivering refined spectral balance and a smoother response. An elegant new industrial design completes the package. Kevlar low-frequency drivers To insure a lifetime of service, M-Audio constructed the BX8a monitor's 8" low-frequency driver from woven Kevlar. Kevlar's high mechanical and thermal resilience makes it ideal for use in speaker cones. M-Audio's engineers also created a curved conical design that improves room dispersion. High-damping reliable rubber surrounds provide percussive musical bass, and ensure that the cone reaches its optimal excursion for accurate reproduction. And M-Audio's high-temperature voice coils reduce power compression, guaranteeing that your monitors will deliver full performance hour after hour. Silk-dome, waveguide-loaded, high-frequency drivers M-Audio's high-frequency domes are made from natural silk to counter the high Q ringing that is inherent in the poorly crafted metallic materials often found in other monitors. In addition, M-Audio's new waveguides refine the high-frequency response. M-Audio's FerroF

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Recording professionals around the world trust M-Audio Studiophile reference monitors for exceptional sonic accuracy. The new Studiophile BX8a Deluxe system builds on this legacy with new waveguides and enhanced driver integration for greater high-frequency clarity and refined sound. The magnetically shielded monitors feature 8-inch curved Kevlar low-frequency drivers plus high-temperature voice coils and damped rubber surrounds for durability and fidelity. The 1-1/4-inch natural silk, waveguide-loaded tweeters deliver a high end that's both clear and easy on the ears. Custom-tuned crossovers distribute 130 watts of bi-amplified power for optimal frequency handling by each driver.

Two-way studio reference monitors with exceptional sonic accuracy. Click to enlarge.

XLR and 1/4-inch inputs.

Kevlar drivers with rubber surrounds for accurate reproduction.

Deluxe Edition
The Studiophile BX8a Deluxe monitors update the best-selling M-Audio BX8a system with a variety of enhancements. The new waveguide delivers a cleaner sound. Custom amplifier tuning enhances the integration between the high and low frequencies, delivering refined spectral balance and a smoother response. An elegant new industrial design completes the package.

Kevlar Low-Frequency Drivers
To insure a lifetime of service, we constructed the BX8a monitor's 8-inch low-frequency driver from woven Kevlar. Kevlar's high mechanical and thermal resilience makes it ideal for use in speaker cones. Our engineers also created a curved conical design that improves room dispersion. High-damping reliable rubber surrounds provide percussive musical bass, and insure that the cone reaches its optimal excursion for accurate reproduction. And our high-temperature voice coils reduce power compression, guaranteeing that your monitors will deliver full performance hour after hour.

Silk-Dome, Waveguide-Loaded, High-Frequency Drivers
Our high-frequency domes are made from natural silk to counter the high Q ringing that is inherent in the poorly crafted metallic materials often found in other monitors. In addition, our new waveguides refine the high-frequency response. M-Audio's FerroFlow technology uses ferrofluid liquid cooling to dissipate heat for maximum efficiency and extended usage.

Bi-Amplified Efficiency
Active monitors have a distinct advantage over unpowered monitors because the built-in power amps are specially designed to work with the drivers and crossovers in a tuned system. Bi-amplification further refines the concept by dedicating separate power amps to the highs and lows. Combined with a finely tuned crossover, this design insures that both the high- and low-frequency drivers are asked to deliver only the frequencies they are most efficient at reproducing.

Rear-Ported Cabinet Design
The Studiophile BX8a Deluxe monitor's cabinet is integrally designed with its other components for optimal performance—right down to rounded corners for reduced edge diffraction and superior imaging. Custom rear-port design audibly reduces the turbulence and resulting distortion caused by poorly designed ports.

Magnetic Shielding
Unchecked, the electromagnetic waves emanating from your speakers can wreak havoc with your computer's video monitor or a nearby TV. The BX8a Deluxe is magnetically shielded so that all of your electronic equipment can coexist without interference.

What's in the Box
Two BX8a Deluxe Speakers, Two Detachable AC Power Cords, User's Manual


Product Information

Item Weight 54.3 pounds
Product Dimensions 25.2 x 16.5 x 19.5 inches
Shipping Weight 55.8 pounds
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
ASIN B0014ID03Q
Item model number Bx8a
Customer Reviews
3.9 out of 5 stars 35 customer reviews

3.9 out of 5 stars
Best Sellers Rank #93,454 in Musical Instruments (See Top 100 in Musical Instruments)
#329 in Musical Instruments > Recording Equipment > Studio Monitors
Date first available at Amazon.com October 2, 2001

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Reviews

Top Customer Reviews

By J. Pankow on February 14, 2009
I picked up a pair of BX8a Deluxe speakers on Amazon for a great price. I did some reading online and read about speakers randomly dying after purchase, but the price was just too good and I decided to roll the dice.

Well, 2 months in, my right speaker went bad and never would work properly again. When I would turn it on, the woofer would pop, go full throw, and emit a 60Hz hum. Very bad stuff. I looked at my return / repair options and found I had to return them to M-Audio to get it repaired.

I looked at the M-Audio forums and read quite a bit more about M-Audio speakers failing, and decided I'd take my chances and crack open the speaker to see if I could figure out what was wrong instead of suffering through a potentially long and painful RMA cycle.

3 hours later I had discovered the problem: a short circuit on the main amplifier board, underneath the tweeter's power amplifier chip. The amp is a TDA2052 made by STMicroelectronics. You can look at the datasheet here: [...]

The short was between pins 4 and 6 of this chip, so it was connecting the negative power supply voltage to the audio input pin on both the tweeter and woofer amplifier - very bad! This explains why I could hear 60Hz power line noise on the speaker every time I turned it on.

I was about to start probing each pin on the TDA2052 to see if I could figure out what wire on the circuit board had a problem when I discovered the short between pins 4 and 6. I carefully removed the solder flux and other debris between the two solder pads and plugged the circuit board in, and the problem was gone. You can see a picture of my circuit board and the location of the short here: [...]

As to why the short-circuit suddenly occurred 2 months after purchase - I can only speculate.
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Verified Purchase
BX8 DELUXE
I'm surprised to see several people complaining of blowing these speakers and one of the main problems is that it's very easy to brush-off the volume knob in the rear which should be exactly in the center NO HIGHER, to give you 0.00db and control your output right from your PC/MAC audio console or the DAW/recording software being used by you.
These monitors are not meant to be used for its loud performance or for partying, although if used properly they can pump all night for fun... I have done it, and I've had two pairs with no issues. As with any monitors, they are used for the re-production of accurate sound; like listening to vocal pitch correction errors and artifacts that would otherwise be missed or not be heard with regular desktop speakers or headphones. Utilized greatly for the mixing of choral harmonies and adlibs in reference to each other's dynamics (volume in the mix) while putting these in reference to music mix volume. Also for accurate vocals or instrument panning/surround placement in the mix, as well as capturing when certain lows or highs are too rich or too weak in a mix.
If you increase the volume more than the CENTER POINT, which is where they should be, THEY WILL BLOW, guaranteed.
I have had the original M-AUDIO's Bx8a from 2005 and passed them on... Now I own the new model which is the one I'm posting the review for; the front on these looks slightly different (all black) where the original Bx8a where almost identical but with a gray accent in the front. Now they are "Bx8a Deluxe" THE KNOB IS IN THE SAME PLACE, and they SOUND THE SAME AS THE ONES I HAD.. SAME SOUND DRIVER - PHENOMENAL for the price.
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I looked at many options for covering a 40Hz to 20KHz range in a home studio. That's the frequency response of the PA equipment I'm producing MIDIs for. All things considered, the Studiophile BX8a met those needs at the best price. There's no subwoofer to buy. This one box is it.

The frequency response is very smooth but not reaching as low as I'd like. Bass clarity is moderately good, perhaps hampered by the ports facing my wall. The rest of the frequency response has excellent clarity. I can now hear mixing and EQ problems that I was missing before. It helps get the production right the first time.

I have only a few gripes. The power and gain controls are in back where they're difficult to reach on such a deep speaker. There's no protective cover for these very fragile, close-range speakers. Both speakers have some background buzz regardless of gain and input.
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These sounded great for the first day but then one of the speakers developed a crackling sound - sounded like it was coming from the high frequency speaker - I e-mailed M-audio to get their support and to this day (e-mail sent 3 weeks ago) have not heard from them. Ended up sending them back to Amazon for refund. Amazon was fantastic in their support - credit came quickly.
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I ordered the 8a after living with the M-Audio AV40 monitors and loving the sound, but wanting 'upsize' it with a bit more bass. These speakers deliver the bass in spades, but minus the directionless and china-rattling vibration that accompanies sub-woofers. I've only had them a few days, but even not fully broken in they sound great. I'm hesitant to award 5 stars only because others have reported reliability issues, so I'll report back in a few weeks and amend this review appropriately.

After waiting a few days for break-in, I started trying to identify the reason the sound seemed off-center, even with careful setup measurements. Turned out no upper frequencies were coming from one speaker. Could have been the HF amp, crossover, or a blown tweet. I hated having to return, but Amazon gets a gold star for making it easy to get a quick refund. Very rare these days
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