JBL 4309 6.5-inch 2-way Bookshelf Loudspeaker Pair with Cambridge Audio CXA81 Integrated Stereo Amplifier Bundle
STANDS NOT INCLUDED
THIS BUNDLE INCLUDES:
1 PAIR JBL 4309 6.5" 2-Way Bookshelf Speakers Black Walnut with Black Grills
1 Cambridge Audio CXA81 Integrated Stereo Amplifier with Built-In DAC and Bluetooth
JBL 4309
The JBL 4309 Studio Monitor is a compact, high-performance bookshelf loudspeaker built around the patented JBL 2410H-2 1-inch compression driver mated to patented High-Definition Imaging (HDI™) horn, paired with a 6.5-inch, cast-frame Pure-pulp cone woofer. This combination delivers music with authority and accuracy not possible with traditional loudspeaker designs. The cabinet features a classic JBL studio monitor design with a blue baffle and is finished in a choice of Walnut or Black Walnut furniture-grade satin wood veneers.
4309 Highlights
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Patented High-Definition Imaging (HDI™) horn
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Patented 2410H-2 1-inch (25mm) high-frequency compression driver
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6.5-inch (165mm) cast frame, Pure-pulp cone woofer with 1.5-inch voice coil
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Classic Studio Monitor design with premium finishes including satin Walnut wood veneer with blue grille or satin Black Walnut wood veneer with black grille
Designed and engineered in JBL’s world-famous acoustic engineering facility in Northridge, California, the 4309 Studio Monitor is a showcase of patented JBL acoustics technologies. This bookshelf loudspeaker features a 2-way design with patented High-Definition Imaging (HDI™) horn technology, the patented 2410H-2 1-inch (25mm) compression driver, and a 6.5-inch (165mm) cast-frame, Pure-pulp cone woofer for powerful dynamics and incredibly accurate sound reproduction.
JBL’s revolutionary High-Definition Imaging horn geometry is the result of intense research into the nuances of horn design. In search of exceptional high-frequency detail and uniform directivity for smooth in-room response, JBL engineers pioneered a design that delivers neutral frequency response both on- and off-axis and provides a seamless transition between the high and low frequency drivers.
The JBL 2410H-2 compression driver benefits from the advanced research and applications derived from JBL Professional’s “D2” range of transducers. At the core of the 2410H-2 device is a lightweight polymer, annular diaphragm that improve high-frequency extension by reducing diaphragm mass. The V-shaped geometry of the annular diaphragm reduces breakup modes, eliminating time smear and reducing distortion. The result is incredible dynamics with accurate reproduction and a lack of power compression.
An Ultra High-frequency tonal adjuster is located on the front panel below the horn and allows the sound to be tailored to the specific environment and listener preference. This control works in conjunction with an advanced crossover network design that features air-core inductors, cast wire-wound resistors and low-ESR metallized film capacitors to optimize the performance of the 4309 drive components.
The 4309’s powerful 6.5-inch (165mm) woofer takes advantage of core JBL engineering techniques to ensure very high output with low distortion. The long-throw voice coil in conjunction with the symmetrical field motor design, flux stabilization ring, and copper shorting ring guarantee maximum output with low distortion. A Pure-pulp cone provides a lightweight, rigid diaphragm and helps to eliminate breakup modes ensuring proper pistonic motion throughout the operating band.
The 4309 enclosure is heavily braced with 3/4-inch (18mm) thick walls to provide a solid acoustic foundation and incorporates a bass reflex design with dual front-firing, computer-optimized flared ports. The cabinet features a classic JBL studio monitor design with a blue baffle and is finished in a choice of Walnut or Black Walnut furniture-grade satin wood veneers. A blue (Walnut) or black (Black Walnut) cloth grille completes the elegant appearance. Dual sets of gold-plated binding posts provide a secure connection and offer a choice of single-ended or bi-wire/bi-amplified connections.
Cambridge Audio CXA81
- Award-Winning Sound - 4x winner of What Hi-Fi? Product of the Year
- 80 watts per channel – power to drive the most demanding speakers
- Class AB Amplification – for balanced & efficient performance
- Toroidal Transformer – for incredible sound-staging
- High Quality ESS Sabre ES9016 DAC – to realise digital music at its best
- Digital inputs – TOSLINK, Coaxial & USB Audio Input (up to 24-bit/384kHz & DSD256 digital files from Mac/PC)
- Balanced XLR inputs – for premium connection
- Bluetooth aptX HD input – connect wirelessly to devices, incl. Alva TT V2
Rewarding Performance
Our CXA81 integrated amplifier builds on the foundations laid by the first CX Series, and over 50 years’ experience of building amps. It offers a progressive perspective – effortless, poised and sophisticated. 80 watts per channel give CXA81 complete authority over music, to reveal every emotion and nuance from your whole music collection – be that streamed or on disc.
Your World’s a Stage
The thing that hits you when you hear CXA81 for the first time, is just how detailed everything sounds. You’ll pick up instruments, subtle shifts in tone, and harmonies you’ve previously missed. Close your eyes, and you’ll be able to place every musician in the soundstage. Once you’ve experienced CXA81, there’s no turning back.
Return on Investment
Our engineering team in London invested hours researching, developing, experimenting and, above all, listening to ensure that CXA81 was right. Their goal: to make the most accomplished and absorbing integrated amp in its class. Every component selected, and decision made, based on the desire to deliver the most complete musical picture possible.
Effortlessly Musical
At the heart of CXA81 beats a Class AB power amplifier stage with optimized capacitor values. It takes the musicality of Class A and blends it with the efficiency of Class B. The amp’s short signal path is efficient, leaving little opportunity for interference. The resulting sound is pristine while delivering the emotional impact the artist intended.
Power with Control
Thanks to a generous toroidal transformer, CXA81 delivers a prodigious 80 watts of power per channel. Dual taps into the left and right of the amplification board mean that, in effect, each channel has its own power supply – resulting in a vivid sound stage. Dynamic shifts in music – like those loud then quiet moments – are handled with ease.
Get the Message
Designed to bring your music to life, CXA81’s state-of-the-art digital circuit board includes the cutting-edge ESS Sabre ES9016 digital-to-analogue convertor (DAC). This means digital audio files, up to a heady 32-bit/384kHz or DSD256, are energized – with every subtle detail delivered in full. CXA81 combines unparalleled accuracy with vivid musicality, doing so beautifully.
Get Connected
CXA81 has connectivity covered. As well as digital optical, coaxial and USB Audio, it features stereo RCA inputs, balanced XLR sockets plus wireless hi-res connectivity via Bluetooth aptX HD – perfect for Alva TT V2. You can even connect a second set of speakers, to hear your music in another room.
Designed for Life
Thanks to the relentless dedication of our team in London, CXA81 is a complete solution. Its combination of versatility, power and audio excellence means it can form the center of your musical experience for many years to come. Its elegant, minimalistic lines, crafted from aluminum and steel, will endure both physically and aesthetically.
Specs
JBL 4309 Specifications:
Type 2-way bookshelf loudspeaker
Low Frequency Driver 6.5" (165mm) Pure Pulp cone woofer
High Frequency Driver 2410H-2 1-inch (25mm) annular ring, Teonex® diaphragm compression driver with advanced HDI™ geometry horn
Recommended Amplifier Power 25 - 150 WRMS
Impedance 4 Ohm
Loudspeaker Sensitivity 87 dB/2.83V/1m
Frequency Response 42 Hz - 30 kHz (-6 dB)
Coverage Angle, -6 dB 100 Degrees Hor. x 80 Degrees Ver., from 2kHz to 17kHz
Crossover Frequency 1.6 kHz
Enclosure Type H-braced front-ported bookshelf
Grille Feature Monitor style to match horn mating features, supplied in dark blue (with walnut cabinet) and black (with black cabinet)
Dimensions with grille 16.5” H x 10.25” W x 9” D (419 mm H x 260 mm W x 227 mm D)
Controls UHF tone control
Input Type Dual sets of gold-plated binding posts with shorting straps
Product Weight (Each) 24.2 lbs. (10.98 kg)
Shipping Weight 56.2 lbs. (25.5 kg)
Shipping Units of Measure Pair
Warranty 5 Years
Recommended stand height 24” (609 mm)
Cambridge Audio CXA81 Specifications:
POWER OUTPUT 80W RMS into 8 Ohms, 120W RMS into 4 Ohms
DAC ESS Sabre ES9016K2M
FREQUENCY RESPONSE <5Hz– 60kHz +/-1dB
ANALOGUE AUDIO INPUTS 1x balanced XLR, 4 x RCA
DIGITAL AUDIO INPUTS 1 x S/PDIF coaxial, 2 x TOSLINK optical, 1 x USB audio, Bluetooth (integrated)
COMPATIBILITY TOSLINK optical: 16/24bit 32-96kHz PCM only, S/PDIF coaxial: 16/24bit 32-192kHz PCM only, USB: audio profile 1.0/2.0 (default 2.0), up to 24-bit 384kHz PCM, up to DSD256 or DoP256, Bluetooth: 4.2 A2DP/AVRCP supporting up to aptX HD (24bit 48kHz)
BLUETOOTH APTX HD RECEIVER BUILT-IN Yes
ROON TESTED Yes
OUTPUTS Speakers A+B, 3.5mm headphone, Preamp Output, Subwoofer Output
REMOTE CONTROL Yes
MAX POWER CONSUMPTION 750W
STANDBY POWER CONSUMPTION <0.5W
DIMENSIONS (H X W X D) 115 x 430 x 341mm (4.5 x 16.9 x 13.4”)
WEIGHT 8.7kg (19.1lbs)
BOX CONTENTS CXA81 Integrated Amplifier, Power Cable, 3 x AAA Batteries, Remote Control, Control Bus Cable, Bluetooth antenna, Quick Start Guide, Safety Guide
