ULTIMATUM XLS Loudspeaker

The Ultimatum XLS is a stand mounting loudspeaker of compact proportions, delivering the bass

weight, scale and dynamics of a significantly sized floorstander. The mid/bass drivers in the XLS are

mounted isobarically which when aligned correctly, as in the XLS, gives deep clean bass delivery.

Combining this authority with the superb sounding Sonomex domed XL high-frequency unit is the art

of the Ultimatum.

The XLS cabinet is constructed from slow-

growing birch plywood, chosen as it is

consistent and has the best resonance

behaviour. The front baffle is from precision

routed controlled density fibreboard

coupled to the front of the cabinet by

means of a polyethylene membrane. This

makes an extremely inert platform for the

mid/bass and high frequency drivers.

The main Mid/Bass driver is a special

version of the Neat 168mm driver with an

aluminium phase plug to aid dispersion and

reduce dynamic compression.

Despite its modest proportions, the XLS

delivers a complete full-range performance

which eclipses many much larger designs.

Specifications HF Unit 26mm SONOMEX Domed XL Super HF Units 2* EMIT 25mm planar/ribbon Bass / Midrange Driver 2* 168mm NEAT Bass/Mid Unit with Aluminium Phase Plug Dimensions (hwd): 37x22x38cm. Enclosure type: Multi-chamber, multi-driver array, incorporating isobaric internal cavity, plus upward firing super-tweeters.

Sensitivity: 88dB/1 watt. Recommended amplifier power: 25 – 200w. Impedance: 6 Ω average. Minimum 4 Ω. Weight: 15Kg. Shipping weight: 35Kg. per pair.

A sealed sub-volume contains the main HF drive unit a modified

SEAS XL SONOMEX domed XL unit with additional damping and

support.

A separate sub-volume contains two EMIT type super tweeter

drive units. Those used in the Ultimatum series extend to 40kHz

fire upwards and operate quietly. Their output, though inaudible

to the human ear, affects the content within the audible frequency

range and lends an open, airy quality to the presentation.

The crossover is a minimalist four-element type (plus damping &

attenuating resistors) employing precise-tolerance, low-loss air-

cored inductors and high tolerance polypropylene film & foil

capacitors. The speaker exploits predominantly first-order

crossover slopes and mechanical roll-offs for a natural, uninhibited

performance.

“The Ultimatum is a labour of love and the end result

of painstaking development and refinement. Such

quality doesn't come cheap, but Neat's Ultimatum

deserves recognition as amongst the very best there

is, irrespective of price.”

Standard finishes: figured birch, black ash, natural ash, oak, cherry, walnut, rosenut. Premium high-gloss finishes: piano black, piano white, velvet cloud, red velvet cloud

Neat Acoustics Ltd. 29B Harmire Enterprise Park Barnard Castle, Co. Durham, DL12 8XT, UK

Tel: +44 1833 631021 Fax: +44 1833 630022 www.neat.co.uk

ULTIMATUM XL6 Loudspeaker

The ULTIMATUM XL6 is a multi-chamber, multi-facet loudspeaker system incorporating six drive units per

enclosure. The visible drive units are mounted on sub-baffles, attached to the main enclosure via a polyethylene

membrane.

The ULTIMATUM XL6 loudspeaker is floorstanding design which adheres to all the

principles that have marked out the ULTIMATUM project and given it such enduring

success. The ultra-rigid birch-plywood enclosure, innovative baffle-decoupling

technology, 'isobaric' bass loading and use of twin EMIT ribbon-type super-tweeters

are employed here to deliver the ULTIMATUM promise of a lifetime of musical

enjoyment.

The enclosure comprises five discrete internal cavities each optimised for purpose. The Bass and Mid/Bass

volumes are large to suit the tuning while the HF cabinet is small to increase rigidity and to stop back pressure from

the Mid Bass driver adversely affecting the rear chamber of the tweeter. The two EMIT supertweeters are similarly

isolated.

ULTIMATUM XL6

The main structure is damped 18mm Birch Plywood, whilst the drive unit baffles are constructed from a 45mm

thick 'sandwich' of Birch Plywood, Polyethylene and MDF. This provides a rigid non-resonant platform, which is

ideal for optimal performance of the drive units.

The two hidden isobarically loaded Neat 168mm main drivers are flux optimised for purpose and use dustcaps for

rigidity.

The main Mid/Bass driver is a special version of the Neat 168mm driver with an aluminium phase plug to aid

dispersion and reduce dynamic compression. Its enclosure is loaded by a low Q reflex tuning.

A sealed sub-cavity contains the main HF drive unit. A separate sub-cavity contains two EMIT type super-tweeter

drive units.

Two bass-only drive units are located at the bottom of the cabinet, in isobaric configuration, with one unit on the

bottom panel facing downward. Acting as a passive subwoofer, these units are linked together and both receive the

same signal, in phase. There is a sealed cavity in between the two units, and the main enclosure is reflex-tuned.

The HF Unit is a modified SEAS XL SONOMEX domed XL unit with additional damping and support.

The crossover is a minimalist 4 element type (plus damping & attenuating resistors) employing precise-tolerance,

low-loss air-cored inductors and newly-developed polypropylene film & foil capacitors. The speaker exploits

predominantly first-order crossover slopes and mechanical roll-offs for a natural, uninhibited performance.

Specifications

HF Unit 26mm SONOMEX Domed XL Super HF Units 2* EMIT 25mm planar/ribbon Bass / Midrange Driver 168mm NEAT Bass/Mid Unit with Aluminium Phase Plug Bass Units 2* 168mm NEAT Bass Units Dimensions (hwd): 100x22x37cm. Enclosure type: Multi-chamber, multi-driver array, incorporating isobaric internal cavity, plus upward firing super-

tweeters. Sensitivity: 87db/1 watt. Recommended amplifier power: 25 – 200 watts. Impedance: 8 ohms average. Minimum 5 ohms. Weight: 34Kg. each. Shipping weight: 85Kg. pair.

Standard finishes: figured birch, black ash, oak, cherry, walnut and rosenut.

Premium high-gloss finishes: piano black, piano white, velvet cloud, red velvet cloud

Neat Acoustics Ltd.

29B Harmire Enterprise Park Barnard Castle, Co. Durham, DL12 8XT, UK Tel: +44 1833 631021 Fax: +44 1833 630022 www.neat.co.uk

ULTIMATUM XL10 Loudspeaker

The ULTIMATUM series of high-performance loudspeakers was launched in 1999. The XL10 is the

result of a complete revision of the flagship MF9 model, building upon that model’s strengths in

order to deliver a world-class full range performance.

The ULTIMATUM XL10 loudspeaker adheres to all the

principles that have ensured the ULTIMATUM series such

enduring success.

The ultra-rigid birch-plywood enclosure, unique baffle-

coupling technology, 'isobaric' bass loading and twin EMIT

ribbon-type super-tweeters are just some of the elements of

the design that delivers the ULTIMATUM promise of a lifetime

of musical enjoyment.

The enclosure comprises eight discrete internal cavities each

optimised for purpose and each different. The bass volumes

and mid/bass volumes are larger to suit the tuning while the

main HF cavity is small to increase rigidity and to stop back

pressure from the mid/bass driver adversely affecting the

rear chamber of the tweeter. The two EMIT super tweeters

are similarly isolated.

The main structure is damped 18mm Birch Plywood sourced

from Scandinavian slow-growing forests as this ensures the

densest, most consistent material. The drive unit baffles are

constructed from a 45mm thick 'sandwich' of Birch Plywood,

Polyethylene and MDF. This provides a rigid non-resonant

platform, which is ideal for optimal performance of the drive

units.

“The Ultimatum is a labour of love and the end

result of painstaking development and

refinement. Such quality doesn't come cheap, but

Neat's Ultimatum deserves recognition as

amongst the very best there is, irrespective of

price.”

Neat Acoustics Ltd. 29B Harmire Enterprise Park Barnard Castle, Co. Durham, DL12 8XT, UK

Tel: +44 1833 631021 Fax: +44 1833 630022 www.neat.co.uk

There are two separate isobaric loaded sub-bass sections,

each with its own enclosure volume and tuning. These use

the latest version of Neat’s 168mm drive unit, which has

been developed and refined over a twenty-year period.

The two sub-bass sections are critically tuned independently

to maximize room location flexibility.

The main mid/bass drivers are special versions of this unit,

with an aluminium phase plug to aid dispersion and reduce

dynamic compression. Again the volumes are of different

sizes to reduce any possible resonant character.

A sealed sub-cavity contains the main HF drive unit. This is a

modified SEAS XL SONOMEX domed XL unit with additional

damping and support.

A separate sub-cavity at the top of the enclosure contains

two EMIT type super-tweeter drive units.

The crossover is a minimalist 5-element type (plus damping

& attenuating resistors) employing precise-tolerance, low-

loss air-cored inductors and newly developed polypropylene

film & foil capacitors. The speaker exploits predominantly

first-order crossover slopes and mechanical roll-offs for a

natural, uninhibited performance.

Specifications

HF Unit: 26mm SONOMEX Domed XL

Super HF Units: 2* EMIT 25mm planar/ribbon

Bass / Midrange Units: 2* 168mm NEAT Bass/Mid Unit with

Aluminium Phase Plug

Bass Units: 4* 168mm NEAT Bass Units

Dimensions (hwd): 150x22x37cm.

Footprint (wd): 35x51cm

Enclosure type: Multi-chamber, multi-driver array, incorporating

isobaric internal cavity, plus upward firing super-tweeters.

Sensitivity: 89db/1 watt.

Recommended amplifier power: 25 – 300 watts.

Impedance: 8 ohms average. Minimum 5 ohms.

Weight: 60Kg.

Shipping weight: 140Kg. per pair.

Standard finishes: figured birch, black ash, natural ash, oak, cherry, walnut, rosenut. Premium high-gloss finishes: piano black, piano white, velvet cloud, red velvet cloud

ULTIMATUM XLi Loudspeaker

The ULTIMATUM XLi is a big-sounding design housed in

an elegant room friendly enclosure.

The ULTIMATUM XLi loudspeaker is floorstanding design which adheres to all the principles that have

marked out the ULTIMATUM project and given it such enduring success. The ultra-rigid birch-

plywood enclosure, innovative baffle-decoupling technology, 'isobaric' bass loading and use of twin

EMIT ribbon-type super-tweeters are employed here to deliver the ULTIMATUM promise of a lifetime

of musical enjoyment.

The enclosure comprises six discrete internal cavities each optimised for purpose. The mid/bass

volume is optimised to suit the tuning of the iso-baric loaded main drive units while the HF cavity is

small to increase rigidity and to stop back pressure from the Mid Bass driver adversely affecting the

rear chamber of the tweeter. The two supertweeters are similarly isolated.

ULTIMATUM XLi

The main structure is damped 18mm Birch Plywood, whilst the drive unit baffles are constructed

from a 45mm thick 'sandwich' of Birch Plywood, Polyethylene and MDF. This provides a rigid non-

resonant platform, which is ideal for optimal performance of the drive units.

The mid/bass driver is a special version of the Neat 168mm driver with an aluminium phase plug to

aid dispersion and reduce dynamic compression. Its enclosure is loaded by a low Q reflex tuning.

A separate sub-cavity contains two EMIT type super-tweeter drive units.

The HF Unit is a modified SEAS XL SONOMEX domed XL unit with additional damping and support.

The crossover is a minimalist 4 element type (plus damping & attenuating resistors) employing

precise-tolerance, low-loss air-cored inductors and newly-developed polypropylene film & foil

capacitors. The speaker exploits predominantly first-order crossover slopes and mechanical roll-offs

for a natural, uninhibited performance. The crossover network is housed in its own separate cavity,

thus isolating it from the magnetic fields created by the drive units.

Specifications

HF Unit 26mm SONOMEX Domed XL

Super HF Units 2* EMIT 25mm planar/ribbon

Bass / Midrange 2* Neat driver 168mm NEAT Bass/Mid Unit with Aluminium Phase Plug

Dimensions (hwd): 100x22x37cm.

Enclosure type: Multi-chamber, multi-driver array, incorporating isobaric internal cavity, plus

upward firing super-tweeters.

Sensitivity: 88db/1 watt.

Recommended amplifier power: 25 – 200 watts.

Impedance: 6 ohms average. Minimum 4 ohms.

Weight: 33Kg. each. Shipping weight: 82Kg. pair.

Standard finishes: figured birch, black ash, oak, cherry, walnut and rosenut.

Premium high-gloss finishes: piano black, piano white, velvet cloud, red velvet cloud

Neat Acoustics Ltd. 29B Harmire Enterprise Park Barnard Castle, Co. Durham, DL12 8XT, UK

Tel: +44 1833 631021 Fax: +44 1833 630022 www.neat.co.uk