The Model S - Fantastic realism and sound-staging, in an elegant package.
What Hi-Fi gave the MonoPulse Model S a five star review 
, saying,
"other loudspeakers sound blurred and hazy by comparison."
"Extraordinary powers of timing and resolution; ... timing almost ridiculously good. Music is delivered with a sublime rhythmic precision, a shapely sense of phase and beat.
Major upgrade. We have just completed a multiple upgrade of the Model S. This includes improved bass control, a smoother top end with better off-axis response, and a quieter upper-mid.
Physical improvements include a lowered terminal panel, a recessed carrying handle in the rear, and extended spike holders giving a twenty-percent bigger footprint.
Slim and elegant. Still a perfectionist design, craftsman built to each order, the Model S is more conventional looking. That, added to the range of colours, enables it to complement almost any furnishing scheme. We are always happy to send sample swatches to help with your choice.
MonoPulse impulse and time alignment is maintained, delivering fantastic realism and sound-staging. For a technical explanation click on The Quest
Dimensions. 92cm high x 18cm wide x 20cm deep, and 12Kg each.
With power. Offering 250 watts maximum and 150 watts continuous power.
Frequency response. From 27Hz to 22kHz
Impedance. 8 ohms nominal and minimum. That minimum impedance is touched at five at points across the frequency range. The result is a wonderfully balanced load for any valve amplifier.
Sensitivity. We specify the sensitivity at 87dB. The high drive-impedance reduces the measured figure, but these speakers are very efficient, so give good output. The combination is ideal for valve amplifiers, and also makes the Model S less sensitive to differences between solid-state amplifiers.
We recommend valve amplifiers have a minimum of around 18 watts, and solid state amplifiers around 35 watts.
Drive units. This slim package manages to embody 160mm, polypropylene-coned LF drivers with 54mm 4 layer aluminium voice-coils, in generous enclosures to give big bass.
The HF drive units are ferrofluid-cooled, 28mm, silk-domed, with neodymium magnets, and rated at 500 watts for 10ms.
Shown left in Biscuit cloth, with Metallic Black steel tops. This also shows the new extended spike holders. Just visible below the badge is the new wide-dispersion HF mounting. This also angles the HF unit upwards. They combine to reduce directionality.
Shown above right, the rear carrying handle. This is recessed and enables the speakers to be lifted with one hand.
Crossovers. The drive units are coupled with a patented asymmetric crossover, using only film capacitors and air-spaced coils.
The HF circuit is fourth-order, with 24dB per octave attenuation from 3kHz. This gives superb protection of the HF units. The LF crossover is second order.
To the right, the high gloss rolled-steel tops - upper, the lacquered brushed bare metal finish - lower Metallic Burgundy.
For more specification and usage details, slick scroll down or click here
A real "audio soul" review was done in Slovenia by Matej Isak for the Mono & Stereo high-end audio magazine. In his conclusion he says "instantly captivating and hard to forget. MonoPulse S speakers leave you in special harmonious mood, like long decayed notes from masterfully played piano."
Click http://www.monoandstereo.com/2010/10/monopulse-s-speakers-review.html
What Hi-Fi giving the Model S their top, award.
The Model Ss do one thing well - like Jimi Hendrix did just one thing well. They do that one thing so staggeringly well that you could spend years enjoying that talent."Look at all the Model S reviews
To the left, the new lowered terminal panel and the extended spike mounting, increasing the footprint area by 20%.
For full surround-sound with the fantastic MonoPulse realism, in a matched and balanced system, we offer units based on the high specifications of the 250 watt, Model C. The total maximum power is 1,350 watts.
Model CM - Centre unit, 45cm wide x 19cm high x 20cm deep.
Model CW - Wall mounting units - 35 high x 18cm wide x 20cm deep.
Floor or stand mounted Model C pairs can also be used as rear units. Our dealers will negotiate on price for any surround-sound sets.
Return to the top Or Return to Home
The Model S - use and specification details.
Design Objective.
All MonoPulse loudspeakers have the primary objective of realism and precise imaging by time-domain synchronism of the impulses and musical leading edges in sounds.
The Model S is also a top quality hi-fi loudspeaker in all other respects, featuring a bass response down to 27Hz, and an HF response to 30kHz.
Description.
To achieve this realism, MonoPulse uses a unique technique, precisely offsetting its drive-units, then combining them with a patented asymmetric crossover, using only film capacitors and air-spaced coils.
The HF circuit is fourth-order, with 24dB per octave attenuation from 3.5kHz. This gives superb protection of the 28mm, ferrofluid cooled, silk domed, HF units.
The LF element is second order. The bass response of the 160mm LF units, in generous box volumes, is extended with a reflex tuning point at 39Hz, giving an in-room response down to 27Hz.
Positioning for bass.
The centres of the LF units are 75cm from the floor. Try to avoid having the front of the speakers also 75cm from side walls or rear walls. If one has to be less, try to make the other one greater. Close to a rear wall is OK, if they are about 1.5 metres or over from side walls - or vice versa. But remember that many speaker installations are not able ideally positioned - so these guidelines should be treated as a help to achieving the best in any situation - not an absolute rule.
The bass alignment is sub-flat, to meet the likely preferences of audiophile equipment owners, but if there is unwanted bass emphasis, we can supply (FOC) bass damping adaptors to be fitted in the downward-firing bass ports.
Positioning and Imaging.
A normal placement is with the units about 2.5 metres apart at a listening distance of about 3 metres. The MonoPulse impulse accuracy will also give excellent central imaging with the units further apart or closer in than normal. This ability can be useful if there are positioning problems, particularly in small rooms. 3 metres apart at a distance to the centre point of just 2 metres, taking the units into peripheral view, can give a dramatically wide sound-stage, while the MonoPulse precision maintains accurate central imaging.
Adjustment for HF Response.
It is a by-product of impulse accuracy that these speakers are quite directional and ‘sweet spot’ in character. This does mean that the upper-register subjective response can be adjusted, either pointing the units directly at the listening position for maximum treble, or more parallel to reduce it.
Adjustment for Listening Height.
The Model S focus of time-domain synchronism is optimised for listening at a height of 90cm – perfect for a low sofa or chair. For a higher position, adjustment can be made by tilting the units slightly backwards. A 5mm front/rear spike length difference, raises the focus by 10cm at 3 metres distance. This way, very exact acoustic focus can be maintained – but outside this they will perform as normal hi-fi loudspeakers.
We can supply extra-long spikes for more extreme adjustment or for clearance and stability on thick carpets.
Alternative nylon "spikes" with rounded ends can also be supplied which are more suitable for hardwood floors.
Cables and Connections.
The terminal panel will take 4mm plugs, 7mm spades, or 5mm bare wire. If using plugs, for quick temporary connection, remove the coloured bungs, but for permanent placement use the holes in the posts and lock the plugs down with the screwed caps.
The HF terminals are the upper ones, the LF the lower, and the units can thus be bi-wired or bi-amped.
The interconnection cables needed, will depend on the system and the layout - please consult your dealer.
Running in. We recommend that the speakers are run in for at least 50 hours at the intended listening volume, with occasional spells at a higher volume.
Warranty. MonoPulse loudspeakers are covered by a one year warranty.
Repairs. In the unlikely event of overheating damage to an HF unit which is protected by a fourth-order filter, access is by removal of the rear terminal panel.
There is no removable cover behind the LF unit, but this and the cloth can be replaced at the factory or by a competent repairer.
For spare HF units and other repairs, contact your dealer.
Other specifications.
Nominal impedance 8 ohms, minimum 8 ohms.
Power handling, 300 watts maximum, 150 watts continuous.
Sensitivity, 87dB.
Height, 92cm. Width, 18cm. Depth, 20cm. Weight, 14.5Kg per unit.
Below, and a pair in Biscuit cloth and Metallic Black steel.
Return to the top Or Return to Home
And a pair in dramatic Electric Blue and Metallic Black. (Note that this does not have the extended feet of the current model)
