1. Welcome

2. Maidstone…… Christmas 2013

6. 2014 P6 Agenda today Muon upgrade enhancement Blade Two The Reference

7. Muon - update

8. 2014 P8 KEF’s ‘ultimate’ statement product Muon Projects where the brief is to create ‘the ultimate’ are few and far between. But that was precisely what KEF set out to achieve with the Muon The result combined KEF’s most sophisticated acoustic technologies with the sensual, organic forms of visionary designer Ross Lovegrove The unique shape of the Muon cabinet derives from the convergence of Lovegrove’s distinctive design aesthetic with the physics of sound

9. 2014 P9 Enhancing the ‘Ultimate’ The latest iteration of KEF’s landmark innovation, the unique Uni-Q ‘point source’ driver array A specifically designed and engineered aluminium trim ring A crossover completely redesigned to incorporate our engineers’ latest thinking in terms of seamlessly integrating the output of all of the drive units New Uni-Q array 11 th Generation Uni-Q ‘point source’ driver array

10. 2014 P10 Significant Midrange Improvements The result of years of painstaking refinement Dedicated MF driver Optimised alignment between the tweeter, tangerine waveguide and the midrange cone Eliminates destructive interference One of the greatest innovations in loudspeaker technology An aluminium trim ring was designed to sit between the cabinet and Uni-Q driver to ensure that sound waves can travel smoothly along the baffle without compromising sound dispersion

11. 2014 P11 New Crossover Incredible bass performance The modifications to the Muon update crossover decreased the group delay Changing from a fourth to a first order crossover in the LF range significantly reduces the group delay between 50 and 200 Hz Coupled with the astonishing extension provided by the ACE (Acoustic Compliance Enhancement) technology within the Muon enclosure Provides a tighter and better controlled bass and probably the best all round bass performance of any domestic loudspeaker

12. 2014 P12 A New Level of Performance Seamless integration of all drivers The sonic characteristics of the latest Uni-Q point source driver array required the frequency response of the Muon update to be rebalanced accordingly The Muon update boasts a first order crossover on the LF for even deeper bass extension HF and MF crossovers have been carefully redesigned to exploit the advantages of the exotic Muon shape and the Uni-Q point source driver array

13. 2014 P13 Summary Muon enhancements

14. 2014 P14 This meticulous re-engineering delivers outstanding dynamics, with unsurpassed clarity and immaculately defined sonic imagery over a listening area no conventional speaker can rival Now more than ever, Muon remains arguably the finest audiophile loudspeaker ever made Summary Muon

15. Blade Two

16. 2014 P16 Evolution…. A painstaking refinement of the concept made the impossible a reality - Blade released 2011 The result of three of years research - Concept Blade realised 2009 To expand the range with a smaller model that packs the same technology and engineering excellence - Blade Two

17. 2014 P17 The acoustic centres of the HF and MF drivers in the Blade’s Uni- Q array and also the four LF drivers are mounted symmetrically equidistant, so that their acoustic centres occupy exactly the same point in space. SAS sounds coherent across the entire frequency range, with noticeably more precise imaging than is possible from any conventional speaker. Same Single Apparent Source Configuration

18. 2014 P18 Technological Sophistication MF Hybrid Cone magnesium/lithium/aluminium, braced with liquid crystal polymer Optimised dispersion because of the flat surround Fully decoupled Uni-Q array Large voice coil with nodal drive to boost power handling and minimise thermal compression Exactly the same Uni-Q as Blade The perfect acoustic point source

19. 2014 P19 New 6.5 inch bass drivers 4 bespoke 6.5 inch drivers in each cabinet, desgined to perfectly integrate with the Blade Uni-Q array Vented couplers for clean lucid bass performance, even when played very loud Decoupled diaphragms further aid performance Conventional driver Blade driver vented coupler

20. New Finishes

21. 2014 P21 Blade Two - Snow White Silver Uni Q Driver Blade Two - Diamond Black Silver Uni Q Driver

22. 2014 P22 Blade Two - Racing Red Silver Uni Q Driver Blade Two - Light Metallic Silver Silver Uni Q Driver

23. 2014 P23 Blade Two - Warm Metallic Grey Silver Uni Q Driver

24. 2014 P24 Blade Two - Frosted Blue Frosted Blue Uni Q Driver Kent Engineering and Foundry Editions

25. 2014 P25 Blade Two - Frosted Copper Black Rose Gold Uni Q Driver Kent Engineering and Foundry Editions

26. 2014 P26 Blade Two summary Same acoustic design philosophy as Blade - Unique Single Apparent Source Configuration Same advanced driver technology - Latest Uni-Q driver array and LF drivers Same striking appearance - The form is dictated by acoustic considerations rather than mere styling alone Expansion of the Blade loudspeaker range - Blade Two provides ease of positioning and placement within smaller environments where space is at a premium

27. Introducing…. THE REFERENCE

28. 2014 P28 ‘Reference’ is a term used (and abused) by many loudspeaker companies but owned by only one: KEF When the engineers at KEF develop a new loudspeaker, they build a prototype as near to perfect as possible This then becomes ‘The Reference’ to which every production loudspeaker must exactly conform Why a ‘Reference’ loudspeaker?

29. 2014 P29 Heritage Each generation of the Reference Series sets a new benchmark Every loudspeaker is hand-assembled to perform within 0.5dB of the reference prototype Exact pair matching delivers perfect stereo reproduction - these revolutionary speakers won instant acclaim for their superior acoustic precision Background What is a KEF ‘Reference’ loudspeaker? Model 105 (1977-79) Model 105/4 (1980-82) Model 105/2 (1979-87) Model 107 (1986-89) Model 107/2 (1990-96) Model 207 (2001-2006) Model 207/2 (2006 – 2014)

30. 2014 P30 Heritage “A description was needed to convey the idea that every loudspeaker is subject to test and scrutiny at all significant stages of assembly – culminating in a final test comparison with a laboratory maintained reference standard, which in practice is the final approved prototype. Hence the method became the name of the new series: Reference.” - Laurie Fincham, Engineering Director 1968-1991 It all started in 1973…

31. 2014 P31 3 years of development Over 25,000 engineering man hours In excess of $1,000,000 investment The New Reference Range

32. 2014 P32 Engineering and Technology Dr Jack Oclee-Brown - Head of Acoustics

33. 2014 P33 Philosophy - The KEF Advantage ● Rigorous engineering and attention to detail ● In-house loudspeaker driver design and manufacture ● Many years of experience and a culture of new ideas ● Industry-leading in-house software for acoustic simulation

34. 2014 P34 ● Unique constrained damping bracing system ● Flexible port technology Low Acoustic Colouration

35. 2014 P35 ● Incorporating Blade technology ● Extensive use of computer modelling ● The driver motor systems have been specifically designed with ultra-low distortion in mind New class-leading drivers

36. 2014 P36 ● Interchangeable ports to adjust bass response – to suit different environments or tastes User-selectable bass alignment

37. 2014 P37 Model 5 prototype directional response data Smooth, balanced frequency and dispersion response

38. 2014 P38 ● The overall distortion performance of The Reference is extremely low particularly in the critical midband THD measurement Model 5 at an output level of 90dB 1m. Industry leading distortion performance

39. Comprehensiv e White Paper

40. 2014 P40 QUESTIONS? jack.oclee-brown@kef.com

41. 2014 P41 Range Overview

42. 2014 P42 Design Details Multi-layered Aluminium composite baffle Strikingly distinctive, high quality composite material provides strength and rigidity Features 5 layers of aluminium sandwiched between a dense composite resin Through-bolt fixings increase cabinet rigidity Carefully cut driver profiles make sure the surface from the driver to the cabinet is smooth for evenly distributed sound waves

43. 2014 P43 Design Details Terminal panel design Combined port and terminal panel in one moulding on The Reference 1 Integrated ‘Link’ feature – no need for separate links or wires Easy single / bi-wire selection with terminals that cannot be lost Accepts all standard connection methods Easy and reliable connection Unique binding posts complement overall metal theme

44. 2014 P44 Plinths and Spikes Reference 3 and 5 are solidly grounded on a plinth and spike set Precision-engineered plinth has a built-in spirit level for ease of levelling Spike sets are cleverly designed for ease of adjustment, with the screws neatly concealed by a smart machined cap Easy height adjustment procedure (all done from the top) Easy first-time setup Design Details

45. 2014 P45 Bespoke Stands Available for Reference 1 Precision-engineered plinth with built- in spirit level for ease of levelling The same spike set as floor standing models Discreet cable management channel at the rear of both stands to keep the cabling neatly out of sight The Reference 1 stand, provision is made for bolting the speaker to the stand for maximum rigidity The vertical upright can be filled with inert material for greater stability and acoustic damping Design Details

46. 2014 P46 Finishes Luxury Gloss RosewoodSatin American WalnutDeep Piano Black Satin and Gloss Pair-Matched Wood Veneers Piano Lacquer

47. 2014 P47 Kent Engineering and Foundry Editions Copper Black AluminiumBlue Ice White To celebrate KEF’s unrivalled heritage of continuous innovation, as well as the part that the legendary Reference Series has played in consolidating KEF’s reputation among serious audiophiles, KEF has commissioned two bespoke editions of the latest range Featured models: REFERENCE 3 REFERENCE 5

48. 2014 P48 Reference Ci – THX certified The Ci5160RL-THX LCR speaker and Ci3160RLB in-wall subwoofer help to add versatility and flexibility to a Reference home theatre setup Featuring the same 165mm (6.5 inch) Uni-Q ‘point source’ driver array and 165mm (6.5 inch) MF/LF drivers for perfect integration within a Reference home theatre system All the drivers are housed within a rigid aluminium front baffle to eliminate unwanted vibrations The Ci3160RLB is powered by a specifically designed, powerful KEF KASA500 system amplifier Ci3160RLB In-wall Subwoofer Ci5160RL-THX LCR speaker

49. 2014 P49 The Reference - summary All totally new ground up design - KEF’s ‘Total system design’ approach -Drivers are strictly pair matched within a +/- 0.5dB tolerance Latest KEF driver technology - Very latest Uni-Q driver array and LF drivers -Three-way designs Striking visual design - FEA designed cabinets -Luxury real wood veneers and piano finish -Unique Kent Engineering and Foundry Editions Versatile range - Five models suitable for serious two-channel or AV applications - Ci Reference models add further flexibility to theatre applications

50. Thank You!