KURZWEIL KS-40A Active pair of nearfield monitor

KS-40A Overview

Our motto, "It\'s The Sound" applies to not only keyboards, but to every step in the process of making music.... And so Kurzweil is pleased to present a new line of affordable, compact self-powered monitor speakers. The first model to be introduced, the KS-40A system, is a solid value, competing favorably with other monitors in and above its price range.

We believe the most accurate sound comes from the right combination of ingredients. Housed in a heavy, thick-walled, non-resonant wood cabinet, the KS-40A\'s sport a magnetically shielded, two-way, bass reflex design and a compact footprint.

Featuring a premium 3/4" dome tweeter and wide-range 4" woofer, 20Wrms system amplification and separate volume and bass adjustments, the KS-40A\'s are an ideal monitoring solution for the personal project studio or keyboard setup.

High frequencies are crisp and clear, low frequencies are balanced and warm, imparting a transparent sound to the KS-40A\'s with equal amounts of presence and clarity. For musicians who are on a budget but are unwilling to compromise when it comes to sound quality, the KS-40A\'s are the perfect compliment to our other affordable, high quality product lines like the SP and PC3LE series.

Suggested Retail Price: please see your local distributor
Availability: please see your local distributor

All specifications subject to change without notice.

All specifications subject to change without notice.

PRICE PER UNIT

ADAMs A7 & A7X: the evolution of a legend

The predecessor to the A7X, the A7, became the most famous of all ADAM monitors in a very short time. Not only has it been reviewed over three dozen times with outstanding results, it has also received numerous awards. The A7 quickly gained mass appeal, praised in many of the worldʼs largest internet forums. Still today, the A7 are the reference monitors in many smaller studios.

With the A7X, ADAM Audio proudly presents the evolution of a legend. It takes everything that made the A7 such an outstanding speaker to a new level.

Driver technology

The first aspect that distinguishes the old from the new model is the 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 a higher efficiency and higher maximum sound pressure levels.

The perfect integration with the lower frequencies has been achieved with a newly designed 7” midwoofer. It has been redesigned with a much bigger voice coil (1.5”) and is driven by an amplifier with twice the power compared to its predecessor. This combination produces an amazing sound and pressure levels with an almost distortion-free musical reproduction.

Amplifiers / controls

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

On the rear panel are 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.

PRICE PER UNIT

The smallest big sound ever...

With the A3X, ADAM Audio present their smallest monitor to date, making it perfectly suited for all environments where space is limited but sound shouldnʼt be constricted. The A3X combines a tiny footprint with the much acclaimed ADAM sound quality by using the X-ART tweeter for the higher frequencies, a guarantee for crystal clear music reproduction.

A 4.5” (basket) driver handles the lower registers. The diaphragm is made from carbon fiber, a material that is very light but very stiff and therefore capable of delivering colouring-free sound. Two built-in 25 Watt amplifiers powers each of the drivers directly.

Stereolink

A very handy and exclusive technology found in the two smaller AX monitors is the Stereolink. This is accomplished by a pair of additional RCA connections that allow for a bypass of the second stereo channel to the other speaker.

This new technology connects two A3X speakers in such a manner as to allow the user the option to control the overall stereo volume of the system from either speakerʼs gain control. This makes the A3X a natural for "mixer-less” desktop applications where overall system volume needs to be adjusted easily.

Controls and Connectors

The front of the A3X sports dual ports for surprisingly low frequency response down to 60Hz. The front panel also has power and gain controls. The rear panel includes a tweeter gain control as well as balanced (XLR) jacks and unbalanced (RCA) jacks, allowing for greater connection flexibility. There are also two M6 (6 mm) metric screw threads for stand/wall mounting.

Review: "Highly recommended“

"Iʼve used various monitors for my computer work before, but never of the caliber of the A3X series. Before these, I would have to redo my mixes significantly when transitioning from the small cheapies to the big 'real ones'. The ADAM Audio A3Xʼs save me a step by providing both great sound in a compact format and by changing mundane audio task-work into a quality listening experience. If you use good monitors from the outset, youʼll learn your music that much faster so that when it comes time for mixdown and mastering on your big boxes, youʼll already be acclimated to your songʼs subtler sonic aspects—aspects revealed only by the A3Xʼs with their sweet, smooth top end, and impressive handling of bass frequencies. Highly recommended.“
(Jon Chappell, Harmony Central, 03/10)

Review: "...one of the best compact monitors“

"ADAM´s A3X as the smallest monitor with a X-ART tweeter to date has convinced us in every respect. It´s one of the best compact monitors we have ever reviewed and with its almost shameless low price it´s worth every penny. (Professional Audio, 05/10)

The Genelec 8130A Digital Monitoring System has a 192 kHz/24 bit digital audio interface.
Due to its compact size, integrated construction, excellent dispersion and precise stereo
imaging, the 8130A is ideal for near field monitoring, mobile vans, digital audio workstations,
broadcast and TV control rooms, surround sound systems, home studios, multimedia
applications and also for use with computer soundcards. The Directivity Control Waveguide?
(DCW?) technology provides excellent frequency balance even in difficult acoustic
environments.
The integrated design allows the amplifiers and the drivers to be calibrated as a single unit,
eliminating the effects of component tolerances and ensuring consistent quality.
The all-aluminium Minimum Diffraction Enclosure? (MDE?) and advanced Directivity Control
Waveguide? (DCW?) technologies are carefully matched with advanced amplifier and electronics
circuitry. The low frequency response extends down to 55 Hz (-3 dB) while distortion is extremely
low due to a uniquely new rear reflex port design.
The 8130A has been specially designed to have a sufficient LF extension for most situations.
However if greater SPL's and a lower cutoff frequency are required, it can be complemented
with Genelec 7050B subwoofer.
The 8130A is very easy to set up and use, the only connections required are the mains supply
and the input signal. The female XLR input connector can be fed with either AES/EBU formatted
digital signal or analog line level audio signal. The Genelec 8130A automatically detects analog or
digital signals and directs them to the correct signal paths.

Technical Specifications
Input word length 16 - 24 bits
Input format AES/EBU
Digital input XLR female
Connector type 
Input Sampling rate
No de-emphasis  29 - 200 kHz
Input Sampling rate
Using de-emphasis 
Peak per pair with music material 108 dB SPL @ 1m
Drivers
Bass 5" magnetically shielded
Midrange -
Treble 3/4" metal dome, magnetically shielded
Crossover frequencies 3 kHz
Free field frequency
response 58 Hz - 20 kHz (± 2 dB)
Amplifier power /ch
Bass 40 W
Midrange -
Treble 40 W
Speaker dimensions (H x W x D)
mm 285 x 189 x 178 mm (Height with Iso-Pod? 299 mm)
inches 11 1/4 x 7 7/16 x 7 1/16" (Height with Iso-Pod? 11 13/16“)
Amplifier dimensions* (H x W x D)
mm Integrated in the speaker cabinet
inches 
Speaker weight 5.6 kg (12.3 lb)

High-Resolution, Active 2-Way Reference Studio Monitor with 5.25" Kevlar Woofer

• Ultra-linear studio monitor with true active design
• Precision Class A/B amplifiers with active protection circuits: 50 W for LF / 25 W for HF
• Ultra-high resolution, ferrofluid-cooled 1" dome tweeter for ultimate sound reproduction
• Long-throw 5.25" woofer with deformation-resistant Kevlar cone for ultimate bass response
• Ultimate dispersion characteristics and extremely large "sweet spot" owing to advanced wave guide technology
• High-precision crossover network with 4th order Linkwitz-Riley filters
• Adjustable to a wide range of acoustic conditions
• Separately controlled limiter for low and high frequency overload protection
• Magnetic shielding allows placement near computer monitors
• “Planet Earth" power supply for maximum flexibility (100 - 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
• Servo-balanced inputs with XLR, 1/4" and unbalanced RCA connectors
• High-quality components and exceptionally rugged construction ensure long life
• Conceived and designed by BEHRINGER Germany

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