OVATO - Speaker NAIM - Free user manual and instructions

USER MANUAL OVATO NAIM

Constructed on the rigid foundation of a pressure die-cast aluminium plinth, the Ovator S-400 and S-600 comprise visually stunning leaf-spring decoupled enclosures fitted with two custom designed rigid paper cone bass drivers. Located above the bass drivers, within nested and decoupled enclosures, is a uniquely advanced Balanced Mode Radiator. The Balanced Mode Radiator (BMR) drive unit reproduces the full bandwidth from the low midrange crossover point to well above audibility with a flat frequency response, minimal distortion and consistently wide dispersion.

Encasing all of this, each stunning Ovator curved-panel enclosure is an outstanding example of contemporary aesthetic industrial design. The form is striking yet subtle and with four real wood and one solid colour finishes available, it integrates effortlessly into domestic settings of any style.

Music played from the Ovator is a revelation. The uncoloured, detailed and natural coherence of the Balanced Mode Radiator combines with the rhythmic clarity and accuracy of the twin bass driver system endlessly to reveal previously unheard musical details and insight. Stereo imagery and recorded ambience are portrayed with scale and depth that remains consistent across the listening room, and with either Ovator model, an entire music collection becomes new again. The speaker is the point at which recorded music leaves the world of electronics and becomes real. With the Ovator, the reality is a musical experience that sounds live and real.

OVATOR

The Range

Beginning with the S-600 and now joined by the S-400, the Ovator Range is the result of a four-year development programme and represents both a remarkable new expression of proven Naim speaker engineering and a technological advance that, quite literally, recasts the accepted ground rules of electro-acoustics.

S-600

Featuring twin 200mm bass drivers and an 85mm BMR in a 60 Litre enclosure, the S-600 is designed for larger listening rooms and for use with upper echelon Naim amplification. With bass extension down to 28Hz and maximum levels that can do full justice to the dynamic range of live music up close, the S-600 offers the ultimate in wide bandwidth and dynamic music making.

S-400

With twin 165mm bass drivers and a 46mm BMR in a 40 Litre enclosure, the S-400 is designed for more modest listening rooms and can be used with less ambitious Naim amplification. Low frequency response still reaches down to 36Hz however and the S-400 gives only very little away to the S-600 in terms of dynamics and maximum level. The S-400 gives nothing away in music making however.

Balanced Mode Radiator explained

The Ovator Balanced Mode Radiator (BMR) is the result of many years of intense effort in both development and manufacture. Not only does the design of such a driver demand great intellectual understanding, but consistent manufacture requires extraordinarily fine specification and control of the physical characteristics of its components. The underlying concept of the BMR is to engineer a practical implementation of the theoretically wide bandwidth and linear acoustic output of an unconstrained vibrating diaphragm. In practice, this is achieved by attaching balancing masses to a constrained diaphragm in carefully calculated locations. Such "mode balancing" modifies the diaphragm's vibrational behaviour so that it simultaneously operates in pistonic and vibrational modes to generate wide-bandwidth acoustic output with a flat frequency response, consistent dispersion and low distortion. Thanks both to the BMR's exceptional inherent performance and to the absence of any mid/high frequency crossover discontinuity, it takes just a moment's listening to appreciate the Ovator breakthrough levels of musical coherence, timing and clarity.

The BMR units in both the S-600 and S-400 are isolated in their own nested enclosures, a 12.7mm wall thickness extruded aluminium tube in the case of a the S-600 and a 10mm wall thickness composite tube in the case of the S-400. Both the S-600 and S-400 BMR isolation tubes extend the full depth of the enclosure and are gradient filled with damping materials selected through technical analysis and critical listening.

BMR Isolating Enclosure

The S-600 and S-400 BMR drivers comprise a honeycomb diaphragm driven by a voice-coil immersed in a twin neocymium magnet system optimised for linearity through finite element analysis. The pressure die-cast chassis provides the rigidity necessary to ensure that every last note of musical detail is accurately reproduced.

BMR Driver

The S-600 BMR module, comprising the driver and its enclosure, is suspended within the main enclosure by circular front and rear duralumin leaf-springs, while the S-400 BMR itself incorporates a high-Q elastomeric suspension system The resulting isolation in both systems decouples at a frequency many octaves below the BMR pass-band.

BMR Suspension

1 Balanced Mode Radiator (BMR) driver for mid and high frequencies
2 Front BMR suspension plate
3 Elastomeric decoupling system
4 Rigid grilles with high percentage open area
5 Pressure die-cast drive unit chassis with FEA-designed triangular rear section

6 Bass drivers with computer-optimised motor systems
7 Low diffraction baffle
8 Computer-modelled crossover
9 High-pressure die-cast plinth
10 Hardened stainless-steel spikes
11 BMR isolating enclosure
12 BMR suspension system to reduce cross coupling

13 Rear BMR suspension plate
14 Mass damped multicomposite panel enclosure with internal bracing
15 Decoupling leaf spring between enclosure and plinth
16 Custom input terminal system
17 Rear spike adjustment system

Specifications

Ovator S-600

Frequency Response (in room)	28Hz - 35kHz
Sensitivity	88dB for 2.83Vrms i/p
Nominal Impedance	4Ω (Minimum Impedance 3.2Ω)
Suggested Power Amplifier Rating	25 - 150W (8Ω rating)
Weight	61 kg
Dimensions (inc. spikes and grilles)	1168 x 401 x 434mm (H x W x D)

Ovator S-400

Frequency Response (in room)	36Hz - 35kHz
Sensitivity	88dB for 2.83Vrms i/p
Nominal Impedance	4Ω (Minimum Impedance 3.8Ω)
Suggested Power Amplifier Rating	25 - 130W (8Ω rating)
Weight	31 kg
Dimensions (inc. spikes and grilles)	1060 x 330 x 345mm (H x W x D)

Finishes

Please note due to the nature of wood, actual finishes may vary slightly to those photographed.

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