M-Audio AV42 Monitor Speakers ACTIVE 4” 20W RMS (PAIR)

• 4-inch polypropylene-coated woofers for tight, accurate bass
• 1-inch ferrofluid-cooled silk cone tweeters for clear, pristine highs
• OptImage IV tweeter wave guides for superior imaging and detail
• 20-watt per channel amplifier with Class A/B architecture
• RCA inputs for connecting gaming systems, DJ gear, mixers, and more
• Front-panel 1/8-inch stereo auxiliary input for connecting your laptop or desktop computer, MP3 player, or other audio sources
• Front-panel 1/8-inch headphone output
• Front-panel volume control
• Acoustically-inert MDF cabinet with bass reflex design for deep, rich sound
• Attractive black vinyl laminate finish

• Type: Two-way desktop reference speaker
• Low-Frequency Driver: 4" diameter, polypropylene-coated, with high-temperature voice coil
• High-Frequency Driver: 1" diameter, silk cone tweeter
• Frequency Response: 75 Hz – 20 kHz
• Crossover Frequency: 2.7 kHz
• RMS SPL: 101.5 dB @ 1 meter
• Signal-To-Noise Ratio: > 90 dB (typical, A-weighted)
• Input Connectors: Left and right RCA line input, and 1/8" aux input
• Polarity: Positive signal at "+" input produces outward low-frequency cone displacement
• Dynamic Power: 20 watts continuous, per channel into 4 Ω
• Input Impedance: 10 k Ω unbalanced
• Input Sensitivity: 100 mV pink noise input produces 90 dBA output SPL at 1 meter with volume control at maximum
• Protection: RF interference, output current limiting, over temperature, turn on/off transient, subsonic filter
• Indicator: blue power LED for aligning wave guide
• Power Requirements: 100-120V/~50/60 Hz, 220-240V/~50/60 Hz; powered via detachable 2-conductor line cord
• Cabinet: Vinyl-laminated MDF

• 150W active studio monitor with 8" military-grade Kevlar low-frequency driver and 1.25" silk dome tweeter
• Bi-amplified design delivers a sound that's both powerful and precise
• Custom waveguide ensures accurate dispersion for an incredibly tight soundstage
• Optimized rear-mounted port produces defined low-end response with bass extension down to 37Hz
• Acoustic Space Control tailors your monitor to your mix space
• Volume control for dialing in the perfect playback level
• Balanced combo input allows for flexible installation
• Front-panel LED shines brightly when the speaker is positioned at an ideal angle

• Frequency Range: 37Hz – 22kHz
• Crossover: 2.0kHz
• Maximum Peak Input Level: -2dBU
• Input Types: Balanced 20kO XLR, and TRS
• Unbalanced: 10kO TS
• Input Sensitivity: -12dBU
• HF Driver Size: 31.8 mm (1.25“)
• LF Driver Size: 203 mm (8“)
• Amplifier Power: 150W Class A/B
• HF Driver Power Amp: 70W
• LF Driver Power Amp: 80W
• Port: Rear internally flared
• Controls: Yes
• Magnetic Shielding: Yes
• AC Input Voltage: 100–120V, 50/60 Hz 220–240V, 50/60 Hz
• Enclosure Construction: MDF
• Enclosure Finish: Black PVC
• Baffle Construction: Injection-molded ABS
• Baffle Finish: Matte black with Soft-touch
• Dimensions (HxWxD): 384 mm x 250mm x 302mm (15.1” x 9.8” x 11.9”)
• Weight: 10.5 kgs (23.1 lbs)
• Display Carton (HxWxD): 398mm x 345mm x 482mm (15.6” x 13.5” x 18.9”)
• Shipping Carton (HxWxD): 412mm x 359mm x 502mm (16.2” x 14” x 19.68”)
• Shipping Weight: 12.8kgs (28.22lbs)
• Configuration: 2-Way bi-amp
• System Type: Active Monitor
• Fuse Rating: 220–240V~ T1AL, 250V 100–120V~ T2AL, 250V
• Power Consumption: 150W
• Shape: Bass-reflex

PRICE PER UNIT

A revolutionary formula: 2 x 7 = 77

In some set-ups it can be advisable to use a horizontally designed speaker rather than a vertical one. Until now, such monitors were only available within the SX top line.

The brand new A77X, due to its outstanding features, might become a true game changer: Equipped with the same advanced technologies as the A7X, it therefore is very similar to the two-way speaker. The A77X, however, distinguishes itself by much higher, compression-free maximum sound pressure levels and dynamics. Due to its power and radiation characteristics, it also is perfectly suited for both near- and midfield monitoring.

Driver technology

Like all models of the AX series, the A77X features the ADAM proprietary X-ART tweeter. The ʽXʼ stands for ʽeXtended frequency responseʼ and thus for one of the features of the Accelerating Ribbon Technology that has been drastically improved: the frequency response. It now extends all the way up to 50kHz. In addition, the X-ART tweeter has higher efficiency and higher maximum sound pressure levels.

The two 7” woofers are identical with that of the A7X. With their large voice coils (1.5”) and powerful amplifiers, they are capable of both very high maximum sound pressure levels as well as very deep registers. The woofers do not cover the same frequency bands: while both of them are responsible for the (sub-) bass frequencies up to about 400Hz, only one of them reproduces the midrange. This prevents interferences between the two drivers. For stereo setups the A77X is available in A and B versions in order to guarantee a precise stereo image.

Amplifiers / controls

Each driver has its own dedicated amplifier. A 50W A/B amp is responsible for the X-ART tweeter, while the bass-/midwoofers are driven by a 100W PWM amp each. The front panel includes a power switch and a control for the volume that retains the volume setting independently from the on/off switch.

The rear panel features several additional controls: a gain for the high frequencies (± 4dB) and two shelf filters for high and low frequencies.
To ensure greater compatibility, there are both XLR (balanced) and RCA (unbalanced) connectors.

Review samples:

“… a refreshing change“
"… if you liked the A7X youʼll like the A77X even more, and if the companyʼs smaller near-fields werenʼt your cup of tea, the A77X are definitely worth another listen. They are not much bigger than a two-driver cabinet design, so should slip into any installation where a near-field speaker will fit, but the extra low/ mid frequency drivers mean that the bass is more naturally extended and the mid-range clearer and more detailed. I like the A77X a lot and they make a refreshing change from the usual mid-priced near-field speakers." AUDIO MEDIA magazine / February 2012

“… wide and spacious soundstage with solid left/right imaging“
"… they are fun and easy to work with, covering all the essential functions required of high-end monitors with aplomb." MusicTech magazine / April 2012

    * Active studio monitors with USB audio interface
    * 4.25-inch magnetically shielded, inverted cone, copolymer woofer
    * 1-inch silk dome high frequency driver
    * 2 x 20 watts of internal stereo power
    * Two combination mic and instrument/line inputs
    * Two 1/8-inch stereo headphone outputs with level controls
    * Includes Cakewalk® Sonar LE music production software
    * Mic and instrument/line gain control with clip LED
    * 16-bit 44.1kHz/48kHz
    * Stereo RCA and 1/8-inch aux inputs
    * 2-position switch for no-latency direct stereo and mono monitoring
    * Mix control to balance computer and audio sources
    * USB and speaker cable included