Marantz HD-AMP1
Housed in an elegant compact chassis that occupies just over 1 square foot of desktop or shelf space, the HD-AMP1 digital integrated amplifier features high resolution D/A conversion and compatibility with a wide range of uncompressed high resolution audio formats, including WAV, ALAC, FLAC and AIFF, and is also capable of decoding DSD tracks with compatibility of all 3 DSD sampling frequencies - 2.6/5.2/11.2-MHz (DSD is the audio format of SACD).
The powerful digital amplifier section features cool-running wide bandwidth and wide dynamic range Class D audiophile amplifier technology, delivering 35 watts per channel into 8 ohms and 70 watts per channel into 4 ohms, providing compatibility with the widest range of speaker types and impedances.
Featuring 2 USB ports, 1 on the front and 1 on the back, the HD-AMP1 lets you connect your favorite iDevice or USB drive to the front panel USB port, and your PC or Mac to the rear panel USB-B port to stream your high resolution audio tracks, and it features advanced noise isolation to guard against digital noise from degrading the high resolution sound.
Equipped with Marantz Musical Digital Filtering, our proprietary DSP filter technology, the HD-AMP1 lets you choose from 2 digital filter algorithms so you can precisely tailor the sound to your liking. The reference-class ESS SABRE DAC features 32-bit/384-kHz decoding for the highest resolution and widest dynamic range with today's advanced audiophile hi-res tracks.
The analog sections feature our exclusive HDAM-SA2 modules, including the analog front end block, the D/A converter block and in the dedicated headphone amplifier block.
There are 2 optical and 1 coaxial digital inputs, along with 2 analog inputs, so you can connect the widest range of source components.
The elegant chassis features a solid brushed aluminum front panel along with luxurious woodtone side panels.
KEF Q750
Q750 is the intermediate model for the Q Series floorstanders. Featuring the KEF signature Uni-Q driver array paired with an impressive 165mm (6.5 inch) aluminium bass driver and two matching ABRs, the Q750 delivers astonishing sonic reproduction.
"Sit anywhere" Uni-Q sound
At the heart of the evolved Q Series is the Uni-Q driver array. The signature innovation places the tweeter in the acoustic centre of the midrange and bass cone, bringing the acoustic ideal of a single point source closer than ever to realisation. The result is a more detailed, accurate three-dimensional sound image, which is dispersed more evenly throughout the room than is possible with any conventional speaker. Uni-Q's ultra-wide dispersion is further enhanced through KEF's 'tangerine' waveguide over the tweeter dome.
Damped tweeter loading tube
With the addition of the damped tweeter loading tube providing a gentle termination of sound produced from the back of the tweeter, lower treble performance is improved dramatically and a new low-distortion inductor on the crossover provides cleaner bass.
New system design
The closed box midrange cabinet design reduces the load on the Uni-Q midrange cone, increasing clarity and detail while delivering cleaner, punchier bass. Midrange clarity is enhanced again through improvements to the mid-bass driver that allowed the DC blocking capacitor to be eliminated. Its removal also created a more natural bass roll-off between the drivers.
Beefier LF drivers and ABRs
Low-frequency (LF) drivers now have a larger roll surround, along with a new suspension to produce cleaner bass at high volumes. A new cone structure improves midrange clarity, and an enhanced Auxiliary Bass Radiator (ABR) with a new surround and rear suspension delivers better controlled and more impressive bass.
