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Gradient R-5 – The Golden Ear Award winner from The Absolute Sound magazine.
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The bass part consists of two 12" long throw woofers. They are assembled on an open baffle, giving the low frequencies a “figure eight” or dipole radiation pattern similar to most panel loudspeakers. These two woofers operate up to 200Hz.
An ordinary box speaker radiates in all directions at low frequencies. This has the unfortunate effect of generating standing waves in all dimensions. In the typical listening room, standing waves distort the sound at frequencies below 200Hz. Gradient Revolution does not excite standing waves between the floor and the ceiling, it can only generate them in the direction of the radiation pattern.
The woofer section of the Revolution can be rotated and directed to minimize undesirable standing waves in the listening area. This ability to “tune” out standing waves in the bass is unique. The result is a smooth, articulate bass response which has correct musical pitch and dynamics.
When compared to the conventional closed box or bass reflex systems, you will get the same sound pressure level at only one third of acoustic energy. Thus, the room colouring effects are much less annoying and your neighbour will hear less of your bass lines.
The new Gradient Revolution is utilizing our latest coaxial technology. A 176 mm pre-coated reed paper cone handles frequencies up to 2.5 kHz. High frequencies from 2.5 kHz to over 20 kHz are reproduced by a 25 mm Al/Mg-dome tweeter placed at the apex of the midrange cone. Such a point source is generally accepted as an ideal sound source for its excellent phase and amplitude response. The end result is an extremely accurate, stable and three-dimensional soundstage.
To minimize reflections from the speaker cabinet, the coaxial element is mounted in a spherical enclosure. The sphere is an ideal form with no structural interfaces and discontinuities.
The symmetric spherical housing leaks “anti-sound” from the opening behind the sphere, cancelling backward radiation and early reflections from the surfaces behind the loudspeaker. Thus, from 200 Hz up, the speaker radiates sound mainly in the forward direction. The rear radiation is effectively damped by having a power ratio of 100 to 1. Special attention has also been taken that the radiation patterns are consistent at all frequencies. In a nutshell: the room influence to the sound remains very small, giving the new Revolution a very similar sound characteristic in many rooms.
Acoustic sophistication
Enjoy the elegant minimalism of the Gradient R-5, available in black, white, or a stylish black & white combination. Easily customize its appearance with interchangeable loudspeaker grills, which can be obtained separately.
Experience effortless connection with the Gradient R-5, featuring the premium Neutrik speakON connector as Gradient's standard choice. The lockable speakON not only ensures convenience but also enhances safety, establishing a superior electrical connection unmatched by any other speaker connector.
The new Gradient Revolution is stylish whether the woofers are directed to the side or front. The easy-to-connect speaker connector is located on the bottom of the speaker, from where the speaker cable can be routed freely in the desired direction or even directly to the floor structures if one want the cable to be out of sight.
Gradient loudspeakers are manufactured from high quality materials and components. The performance of the drivers used have been tested before the assembly. After the assembly, a precision measuring system ensures that all speakers are of a similar high standard. The inspection marking and the serial number are located on the back of the speaker.
In line with Gradient's unwavering commitment to quality, the R-5 is meticulously crafted by hand in Finland. This dedication to craftsmanship not only ensures exceptional quality but also guarantees the longevity of your investment. Gradient has been granted the right to use the Key Flag symbol as a sign of Finnish work.
"...I think, the Revolution R-5 sets some sort of industrial standard for what it is for a loudspeaker to be non-speaker-like, intangible. If you want to know what it means that the speaker vanishes entirely, gets out of the way of the music, try to hear these speakers. We didn’t do a direct comparison, but my hunch is that the new Revolution sounds, if possible, even more airy and immaterial than the old one."
Kari Nevalainen, INNER, October 2022
"The Gradient R-5 Speakers have a special ability to vanish from the listening room. They do not draw attention to themselves in any way, leaving us alone with the music. They can be set up in pretty much any way, and they will still play optimally. When set precisely, they will disappear."
Wojciech Pacuła, High Fidelity, January 2023
Description:
3-way floorstanding loudspeaker
Frequency range:
50 – 25000 Hz (±2 dB), 30 Hz (-6dB)
Sensitivity:
88 dB (2.83V/1m)
Tweeter:
1 x 25 mm coaxial Al/Mg dome
Midrange:
1 x 176 mm pre-coated reed-paper cone
Woofer:
2 x 300 mm long throw
Crossover point:
200 Hz, 2500 Hz
Amplification needed:
50 – 250 W
Nominal impedance:
6 Ohm, minimum 5 Ohm
Inputs:
Four pole Neutrik speakON connector or pair of binding posts
Enclosure:
Advanced techno polymer | Bass: dipole | Midrange & treble: cardioid
Placement:
Floorstanding
Dimensions (W x H x D):
420 x 1040 x 320 mm
Weight:
25 kg
Finish:
Black or white with black or white grille
