This area of the site is being produced primarily to publish documents and information leaflets about KEF products from the period of interest.

Documents - includes some original KEF documents which have been reproduced with kind permission of GP Acoustics (UK) Ltd. These are clearly indicated as KEF documents in the text supplied.

Leaflet entitled Units published by KEF Electronics (10 74 UN3). This contains technical information about KEF Drive Units (B139 SP1044, B200 SP1014, B110 SP1003, T27 SP1032) and Dividing Networks (DN12 SP1004, DN13 SP1015, DN13 SP1017). It also explains why KEF replaced paper diaphragms with plastics.

Leaflet entitled Units published by KEF Electronics (10/73/UN-1). This contains technical information about KEF Drive Units (B139 6171, B200 SP1014, B110 SP1003, T15 6236, T27 6535) and Dividing Networks (DN8 6305, DN12 SP1004, DN13 SP1015, DN13 SP1017). It also explains why KEF replaced paper diaphragms with plastics.

Leaflet entitled ASSEMBLING KEFKIT3 published by KEF Electronics (GA6990/5M/1175). This contains information relating to the construction of a KEFKIT3.

Leaflet entitled KEFKITS published by KEF Electronics (KK/3 GA6802/20M/4.75). This contains information about KEFKITs generally and about KEFKITs 1 and 3 in particular.

Leaflet entitled KEFKITS published by KEF Electronics (no reference number for leaflet). This contains information about KEFKITs generally and about KEFKITs 1 and 3 in particular.

B139 SP6171, T27 and B110 installation leaflets. Probably these leaflets were produced by KEF (no reference numbers for leaflets)

Information sheet supplied to me by Dave Dlugos which explains the KEF naming conventions used for drive units and speaker systems.

Photocopy of a KEF Brochure (written in German) bought by me in 2003 and scanned. This brochure entitled 'KEF selbst bauen' (KEF Build It Yourself) has 43 pages and contains a wealth of information about kits (including Model 104ab and Cantata), the Constructor Series (Models CS1, CS1A, CS3, CS5, CS7), drive units (T33A SP1074, T52B SP1072, T27A SP1032, B110 SP1003, B110 SP1057, B200G SP1075, B200 SP1014, B200 SP1039, B139B SP1044, BD139 SP1037, BD139B SP1082, B300 SP1071), crossovers (DN12 SP1004, DN13 SP1017, DN13 SP1106, DN19/20 SP1064/1058, DN22 SP1065) and constructional and/or details for other speaker systems (including Schlüsselfertig, Karussell, Spitze, Satelliten, Durchblick, Schlank und rank, Triangel, Horn, Metronom). Much of this material will be referenced from elsewhere on the site but it is also included in entirety here for anyone with the time and bandwidth to download the pages and read them.

Leaflet entitled C Series published by KEF Electronics (10/73/C-3). This contains information about the KEF C Series speakers including the Concerto, Cadenza, Chorale, Cantor, and Coda.

PDF of a KEF Document entitled 'Model 104ab.......a story of improvement' supplied to me by Dave Dlugos. The document provides some background to the development of crossovers in the 104ab.

Two leaflets (written in German) bought by me in 2003. One provides the B139 SP1044 Specification (I suspect that this document was published by KEF) and the other provides a list of Construtor Series drive units and crossover units and their prices at the time (Document published by KEF).

Leaflet entitled 'KEF CELESTE IV INSTALLATION INSTRUCTIONS' published by KEF Electronics LTD (Part No PL226EN01)

Brochure entitled 'KEFKITS 104aB Cantata' which was supplied to me as a PDF file by Erik De Vocht <erik@webhaus.be> on Mon Dec 15, 2003. Erik is happy to send electronic copy in PDF format on request.

Brochure entitled 'the speaker engineers' which was supplied to me as a PDF file by Erik De Vocht <erik@webhaus.be> on Mon Dec 15, 2003. Erik is happy to send electronic copy in PDF format on request. This ducument which is written in Dutch contains information about Corelli, Calinda, Cantata, 103 and 104aB.

KEF Constructor Series Leaflets (including CS1, CS3, CS5, CS7). These leaflets which supply details for the respective speakers (cabinet construction, crossover and technical specification) were supplied to me in electronic form by Steve Bell <sbell.home@lineone.net> on Friday and Saturday 2 and 3 January 2004. Higher resolution electronic copies may be obtained by emailing enquiries or Steve Bell.

The leaflet associated with the CS1A was supplied to me in electronic form by John Smith on Sat 26 March 2005.

KEF Constructor Series Leaflet CS9. This leaflet which supplies details of the cabinet construction, crossover and technical specification was supplied to me in electronic form by Colin Royle <colin@hifiloudspeakers.info> on Tuesday 10 February 2004. Higher resolution electronic copies may be obtained by emailing enquiries or Colin Royle.

KEF REFERENCE SERIES MODEL 103.2 INSTALLATION INSTRUCTIONS (KEF Part Number PL224 EN01). Instructions in English, German and French. Originals supplied by Steve Bell (email sbell.home@lineone.net) Friday 9 January 2004. Higher resolution electronic copies may be obtained by emailing enquiries or Steve Bell.

Leaflet entitled 'KEF Data Sheet B200.G SP1075' published by KEF Electronics (Part No PL348 EN01). Supplied in electronic form by Colin Royle Thursday 26 February 2004

Leaflet entitled 'T27 Installation' published by KEF Electronics. Copy supplied by Keith Martin on Thursday 28 February 2004.

KEF Brochure entitled "1961-1986 KEF LOUDSPEAKERS" - Part Number PL 557 EN01. Contains some details of: Models 107, 105.2, 104.2, 103.3, 102; KUBE; C80, C60 and C40; C Series - C40, C30, C20 and C10; KEF Constructor Series drive units - B300B, B139B, B200G, B110A, T27A, T33A, T52B; and Automotive Series. Electronic copies supplied by Greg Fuller on Friday 30 January 2004

Brochures entitled 'Corelli Calinda Cantata' and 'If you're serious about sound' which were supplied to me as a single PDF file (1.4MB) by David Lee on Friday 5 November 2004. The brochures provide specifications for Corelli, Calinda, Cantata, Model 103, Model 104aB, Model 105. and have some information about B139, B200, B110, T27.

KEF REFERENCE SERIES MODEL 104 MANUAL (KEF Part Number 7/73/104-M3). Originals supplied by Paul Larner on Wednesday 19 January 2005. Supplementary pages dealing with 104ab also included.

KEF KM1 Leaflet 1. This leaflet which supplies details and technical specifications of the KM1 was supplied in paper/photocopy form by Allen Edelstein on Thursday 29 December 2005.

KEF KM1 Leaflet 1. These documents which supply details, technical specifications and photographs of the KM1 were supplied in electronic form by SpeakerGuru on Monday 9 January 2006.

KEF REFERENCE MONITOR LOUDSPEAKER MODEL LS5/1AC. This paper which supplies details and technical specifications of the LS5/1AC was supplied by SpeakerGuru on Thursday 5 January 2006

KEF Reference Series Model 105 Series II Installation Instructions. Electronic copy of booklet supplied on 18 January 2006 by Colin Royle

KEF Reference Series Model 101 Installation Instructions and promotional item. Electronic copies and information supplied on 18 January 2006 by Colin Royle

KEF Brochure c1978. This is a KEF sales brochure from around 1978. The brochure covers the "Corelli, Calinda, Cantata, 104aB and the 105 series. It is a black and white six page- lette fold out with the speaker line on one side and sales jargon and contact information on the other. Electronic copies supplied by forum member Ronald on Thursday 2 March 2006

Leaflet entitled 'A New Dimension in High Fidelity' published by KEF Electronics (Part No PL398EN01). Supplied in electronic form by Colin Royle on Tuesday 26 May 2006. Contains information about: Carina II, Caprice II, Coda III, Cantor III, Carlton III, and the Reference Series Models 101, 105.2, 105.4. Also contains information about the ULS 40 (Universal Loudspeaker Stand), and drive units B139B SP1044, B200A SP1014, B110A SP1003, T27A SP1032.
KEF leaflets, scanned and provided by SpeakerGuru on Monday 22 Oct 2007. These have been combined into a single pdf for ease of viewing and download. Leaflets provide photographs and details of Celeste, Portable Celeste, Group 4 Cantata, Duette, Duette Deluxe, K2 Baffle, T15 Tweeter, B139 Woofer, B1814 Woofer, T27, B139 Mk 2 Woofer, T15 Mk 2 Tweeter, DN8 and DN9 dividing networks.
KEF Kube200 schematic and layout provided by SpeakerGuru on Monday 22 Oct 2007. These have been combined into a single pdf for ease of viewing and download.

KEF 107/2 KUBE schematic provided by SpeakerGuru on Tuesday 9 Oct 2012. (pdf for ease of viewing and download)
KEF leaflet entitled KEF REFERENCE SERIES KUBE 104/2. Provided by SpeakerGuru on Monday 12 Nov 2007 in electronic form. (KEF Part No. PL 566 ENO)
KEF Booklet entitled KEF REFERENCE SERIES MODEL 109 - THE MAIDSTONE - INSTALLATION MANUAL. Provided by Andrew Goloskof (Proffski) on Monday 11 Aug 2008 in electronic form.
Compressed but screen readable copy - 24 pages - 2MB (pdf)
Best quality copy - 24 pages - 20MB (pdf)
KEF Booklet entitled KEF REFERENCE SERIES MODEL 102 - INSTRUCTION MANUAL. (Part No PL554EF01) Provided by A Pyrro (Forum user ID Pyrro) on 31st July 2011 in electronic form.
PDF copy - 24 pages - 2.4MB (pdf)
KEFTOPICS – Technical bulletins covering aspects of development, design and use of loudspeakers.
International Issue Volume 1 No.1A .  Provided by SpeakerGuru on Friday 1 June 2012 in electronic form.
Volume 3 No.3 entitled MAINTAINING QUALITY STANDARDS IN PRODUCTION.  Provided by SpeakerGuru on Thursday 31 May 2012 in electronic form. (KEF Part No. KT211 EN02)
Volume 3 No.4 entitled HIGH EFFICIENCY WITH SMALL ENCLOSURES.  Provided by SpeakerGuru on Wednesday 30 May 2012 in electronic form. (KEF Part No. KT150 EN01)
Volume 4 No.1 entitled OVERLOAD PROTECTION – Power limitations of the Loudspeaker/Amplifier combination.  Provided by SpeakerGuru on Monday 14 May 2012 in electronic form. (KEF Part No. KT256 EN01)
Volume 4 No.2 entitled CROSSOVER FILTERS – An integral part of overall system engineering.  Provided by SpeakerGuru on Friday 18 May 2012 in electronic form. (KEF Part No. KT257 EN01)
Leaflet entitled Units published by KEF Electronics (02 74 UN-2). The original document was sent to me by Ted Rook August 2013. The document contains technical information about KEF Drive Units (B139 SP6171, B200 SP1014, B110 SP1003, T15 SP6236, T27 SP6535) and Dividing Networks (DN8 SP6305, DN12 SP1004, DN13 SP1015, DN13 SP1017). It also explains why KEF replaced paper diaphragms with plastics.