JBL LSR 305 2-way active studio monitor

5" Two-WayPowered Studio Monitor

Bi-amplified Studio Monitor with Magnetically-Shielded 5" Low Frequency Transducer and 1" Soft-Dome High Frequency Transducer and Image Control Wave Guide. Class-D 41 Watt RMS Amplifier for LF, and 41 Watt RMS Amplifier for HF. Balanced XLR and ¼" TRS Inputs with Detented Level Control, HF and LF Trim Controls. LSR305 Includes US Power Cord. LSR305/230 Includes international Power Cord.

FEATURES

• Image Control Waveguide:
  • The Image Control Waveguide was developed for JBL's new flagship M2 Master Reference Monitor and with the introduction of the JBL 3 Series, is now included for the first time in an affordable, compact reference monitor.
  • The patent-pending design of the Image Control Waveguide precisely controls the sound emanating from the speaker in the vertical and horizontal planes ensuring the presentation at the listening position is neutral and accurate.
• JBL Transducers are legendary for their performance. The 3 Series long-throw woofer and its damped woven composite Neodymium tweeter are designed from the ground up to reproduce the powerful transients and micro dynamics of your mix. These drivers deliver impressive deep bass and smooth high frequency response beyond the range of human hearing.
• JBL's Patented Slip StreamTM low frequency port design works in concert with the woofer to produce deep bass response at all playback levels. The double-flared shape of the port is precisely engineered for greater low-frequency extension and reduced turbulence.
• Big Power, Big Sound - 3 Series efficient Class D Amplifiers provide abundant power to deliver the output and dynamic headroom needed for the most demanding production styles
• Professional Balanced Inputs - Balanced XLR and 6 mm TRS inputs give you the options you need to connect your 3 Series to any signal source while maintaining professional signal quality.
• Selectable Input Sensitivity - The -10 dB/+4 dB sensitivity switch ensures compatibility with a broad range of signal sources, allowing you to connect the 3 Series to high output professional gear without any danger of input overload.
• LF Trim and HF Trim "TRIM" switches for both the Low and High Frequencies give you excellent control over the 3 Series sound in "your" room. Use these to fine-tune the amount of bass and treble you hear to compensate for room acoustics, program material and your personal taste.
• JBL Professional Reliability - Prior to becoming a production-ready design, each 3 Series model is subjected to JBL's tough 100 hour power test, in which the speaker is required to play continually at full output for 100 hours without failure. This demanding test ensures your 3 Series speakers will deliver years of reliable performance.
• JBL LSR Design - Your Music Needs a Point of Reference - While most manufacturers take only a single on axis measurement of the speaker's performance, this doesn't tell how it will sound in your room. JBL's LSR Linear Spatial Reference design criteria requires seventy-two measurements yielding more than 1,200 times more data, enabling JBL to engineer a speaker that "sounds right" in any working space. With LSR design, 3 Series Studio Monitors deliver superior accuracy regardless of the size and shape of your room, so your mixes "hit their mark" when heard on any playback system.

SPECIFICATIONS

PRICE PER UNIT

S3X-V

Using the newly developed 4” HexaCone midrange and 9” HexaCone woofer combined together with the X-ART tweeter creates the unique S3X-V control monitor.

A step up over the smaller models, the S3X-V is capable of producing more power and volume along with a more detailed and homogeneous sound that will impress even the most experienced sound engineer. Whether the complex sonic images of an orchestra or the smooth tone of a jazz trio, the S3X-V reveals even the finest nuances of any material. The driver assembly of the S3X-V allows long time, non-fatiguing listening sessions.

Reviews: "Wonderfully detailed...”

“Wonderfully detailed, with an exceptionally transparent mid-range. [...] ADAM make the leap to a three-way speaker design that seems to pay dividends in clarity and separation. [...] I think it would be fair to say theyʽre the best sounding ADAM monitors Iʽve reviewed.” (Sound On Sound, 12/2009)

“No doubt, the S3X-V deserve the title Reference Monitor. With this series, ADAM Audio proves to have a very good feeling for meeting the specific demands of the sound engineerʽs guild, creating studio standards at the same time. [...] A precision tool combined with a luxury good.” (www.96kHz.de, 03/2010)

The CMS 50 is the most compact monitoring loudspeaker of all the Focal Professional range. Its design permits listening from 50cm away, while still keeping the possibility of the monitors at a great distance from one another without damaging the soundstage. The 5” mid-woofer reaches down to 55Hz, while offering a controlled bass and a totally linear midrange. The midrange register of the CMS 50 has unequalled neutrality in its price range. The Al-Mg inverted dome tweeter offers outstanding dynamics and a degree of definition in the treble that allow precise measurement of reverb and other effects which are normally very difficult to assess.

Features
Ruler-Flat Response 52Hz to 20kHz, + 1.5 dB

Benefit: Sound true to actual recording

Benefit: Any pair of speakers is a matched pair

Active Technology

2 FR (Fast Recovery) Series Amplifiers; HF 40W; LF 100W

Benefit: Precise dividing slope, correct phase, and low distortion

Benefit: Minimal chance of speaker damage due to overdriving

Servo Loop Woofer Technology

Electronic control and dampening

Benefit: Speaker output is as true to incoming signal as possible

Frequency Response Controls

80Hz low-cut switch; 3-position live/dead switch (-2bdB, Normal and +2dB)

Benefit: Excellent response in a variety of acoustic environments

Wide Sweet Spot

Custom-designed die-cast wave guide

Benefit: User hears the same thing across a wider range of motion

3-Position Acoustic Space Switch

Compensation in bass response for half-space (-2dB) and quarter-space (-4dB) placement

Benefit: As close-to-flat performance as possible regardless of placement in room

Applications
Professional Recording Studios

Home and Project Studios

Film (THX) and Post Production Studios

Home Theater Installations

Acoustic Performance
Free Field Frequency Response: 52Hz - 20Hz

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