Extreme Manual - Henley Designs Ltd.
Contents
1. NL4FC 4 pole 9 5mm 15mm black Clamp Ring Cable runs to each speaker should be kept as short as possible Short cable runs are especially important if the cable is of relatively small cross sectional area If the cable is advertised as directional care should be taken to ensure that its orientation is as recommended Page 5 7 AMPLIFIERS Extreme Series speakers offer relatively high sensitivity and do not require generously rated power amplifiers for adequate volume levels to be achieved in typical listening environments They also offer a relatively easy load to the amplifier and do not make unusually heavy demands on its power delivery No overload protection systems are fitted to Extreme Series speakers so it is possible to cause damage through over driving Such damage can occur whatever the power rating of the amplifier and is not covered by any warranty If ever the sound at high volumes becomes distorted your speakers are at risk of damage In such circumstances the volume must be reduced 9 SPECIFICATIONS Model Extreme 5 Type 2 way closed box loaded LF MF Driver 110mm pressed alloy cone HF Driver 25mm Dome Filter Network 3rd order at 3 0kHz Cabinet Reinforced Structural Polymer Frequency Response 70Hz to 18kHz 3dB Frequency Range 60Hz to 20kHz 6dB Power Handling 125W peak programme Amplifier Compatibility 25 125 Watts into 8 Ohms Nominal Impedance 8 Ohms Sensitivity 89dB2. OWNERS MANUAL 1 INTRODUCTION Thank you for purchasing this Acoustic Energy product As a valued customer we would like to keep you up to date with all news and events including new products exhibitions and exclusive promotions To enable us to communicate these exciting developments please go to our website www acoustic energy co uk and complete the ownership registration form Perhaps more than any other audio product speakers are sensitive to installation so please take a little time to read this manual and to follow as far as practical the guidelines it contains Careful installation will help ensure that your Extreme Series speakers perform optimally Should you have any questions not covered here we are happy to try and answer them either by telephone or email Contact information can be found in Section 11 This manual covers the Extreme 5 and Extreme 8 Following the introduction it is divided into sections covering handling installation positioning mounting connection amplifiers listening specifications warranty and contact information We recommend that you read at least the first six of these sections carefully before installing and using your speakers 3 INSTALLATION Extreme Series speakers are intended to be mounted either vertically or horizontally using the supplied mounting brackets The brackets can be attached to any suitably sound structure Wall fittings Rawlplugs etc and screws are
3. not included but should be chosen appropriately for the type and condition of the structure the brackets are to be attached to Extreme Series speakers are heavy and you must be sure that the structure and fittings chosen are able to support their weight If you have any concerns over the suitability of the structure or doubt in your ability to fix the brackets securely you should seek professional advice and help Extreme Series speakers are weather proof splash proof and suitable for use in outdoor damp dusty or humid applications They can also be installed and used in environments that are subject to long term ambient temperatures between 5 C and 35 C They are not suitable for installation where they will be continually in contact with water Extreme Series enclosures and grilles can be painted to match interior design schemes using domestic matt emulsion paint Take grate care when painting grilles that neither the driver units become contaminated with paint nor that a significant number of the grille perforations become blocked Neutrik Speakon input sockets only are fitted to Extreme Series speakers An appropriate Speakon plug is included with each speaker Page 2 2 HANDLING Extreme Series speakers are precision engineered products that can be damaged by inappropriate handling If the speakers perforated grilles are removed take care not to touch any of the drivers Damage to a driver will at bes
4. of as domestic waste but must be taken to a facility capable of re cycling them and appropriately handling any waste by products Contact your local authority for details of the nearest such facility MN Page 7 EXTREME EXTREME Acoustic Energy Limited 16 Bridge Road Cirencester Gloucestershire GL7 1NJ Tel 44 0 1285 654432 Sales 44 0 1285 656890 Technical Fax 44 0 1285 654430 Email info acoustic energy co uk Web www acoustic energy co uk Manual Part No MA2801
5. e speakers consider the coverage required with respect to the likely listener positions Try and ensure that coverage is even and that as listeners move around the environment their distance to the nearest speaker remains relatively constant Page 3 5 MOUNTING BRACKETS With speaker mounting locations selected the Mounting Brackets can be attached to the mounting surface or structure Diagram Two illustrates the bracket speaker and associated components Use the bracket itself as a template to mark the mounting hole positions employing a spirit level to ensure the bracket is level The mounting holes are provided with key hole slots to simplify attachment At least two screws must be used to attach each bracket Fittings Rawlplugs etc and screws are not included with the bracket but should be chosen appropriately for the type and condition the of structure the brackets are to be attached to Extreme Series speakers are heavy and you must be sure that the structure and fittings chosen are able to support their weight If you have any concerns over the suitability of the structure or doubt in your ability to fix the brackets securely you should seek professional advice and help Upper Attachment Knob Mounting Bracket Lower Attachment Knob Page 4 Once a bracket is securely fixed attach the speaker by offering it up to the bracket and inserting the threaded section of each Attachment Knob in turn t
6. eakers are guaranteed against original defects in materials manufacture and workmanship for one year from the date of purchase Under this warranty Acoustic Energy agrees to repair any defect or at the company s discretion replace the faulty component s without charge for parts or labour This warranty does not imply any acceptance by Acoustic Energy or its agents for consequential loss or damage and specifically excludes fair wear and tear accident misuse or unauthorised modification This warranty is applicable in the United Kingdom only and does not in any way limit the customer s legal rights If you have reason to claim under the warranty please contact your dealer in the first instance Claims and enquiries under the warranty for Acoustic Energy products purchased outside the UK should be addressed to the local importers or distributors Please retain all original packaging materials for possible future use We suggest that you complete details of purchase now and keep this information in a safe place for future reference Name Address Dealer Purchase Date Serial Numbers Acoustic Energy Limited 16 Bridge Road Cirencester Gloucestershire GL7 1NJ UK Tel 44 0 1285 654432 Sales 44 0 1285 656890 Technical Fax 44 0 1285 654430 Email info acoustic energy co uk Web www acoustic energy co uk Products that display the crossed out wheeled bin logo cannot be disposed
7. f bare wire and connect to the screw terminals within the Speakon If using 4 pole Speakon plugs use the terminals labelled 1 and 1 Take care not to connect the negative and positive terminals together and short circuit the amplifier Make connections with the amplifier switched off Once the cable is connected to the terminals the plug can be reassembled The Clamp Ring secures the cable as the Rear Housing is tightened Connect Positive Connect Clamp Ring Plug Body Negative Rear Housing To connect the speakers simply push the Speakon plug into the socket and twist the plug clock wise to lock Twist counter clockwise and pull to disconnect Connection Polarity It is important to ensure that each speaker is connected with the same polarity Positive speaker terminals should always be connected back to amplifier positive terminals and negative speaker terminals connected back to amplifier negative terminals Performance will be degraded if connections are made with incorrect polarity Cable Choice Choice of cable type will be influenced by the application intended for your Extreme Series speakers and the characteristics of other components in your system Your dealer or distributor will be able to advise There are however some simple guidelines to consider The external cable diameters compatible with Speakon plugs are as follows NL2FC 2 pole 4mm 10mm NL4FC 4 pole 5mm 11mm white Clamp Ring
8. for 1 Watt at 1 metre Ambient Temperature Range 5 C to 35 C Enclosure Sealing Specification IP54 Dimensions H x W x D 260 x 160 x 180mm Weight including bracket 3 0kg single unpacked Finish Black or white Acoustic Energy reserves the right to modify product specifications Page 6 8 LISTENING It is wise before listening to your speakers to make one final check of the cables and connections If all appears well begin listening at a relatively low level to confirm that the system is operating as expected Only increase the volume if you are happy with the sound at low levels If you are unhappy turn the system off and re check all the cables and connections Extreme Series speakers may take a little time to run in and similarly the system will also perhaps take some time to reach normal operating temperatures It is unwise therefore to make rapid judgements about the performance of the speakers Your ears too will take some time to adjust to the new sound so revisiting the system set up speaker positioning especially is best left for a few days Extreme 8 2 way closed box loaded 160mm pressed alloy cone 25mm Dome 3rd order 3 0kHz Reinforced Structural Polymer 55Hz to 18kHz 3dB 45Hz to 20kHz 6dB 150W peak programme 25 150 Watts into 8 Ohms 8 Ohms 90dB for 1 Watt at 1 metre 5 C to 35 C IP54 390 x 260 x 260mm 7 0kg single unpacked Black or white Your Acoustic Energy sp
9. hrough the bracket and into the threaded holes in the speaker Tighten the Attachment Knobs while holding the speaker at the desired mounting angle The speaker cable can either be threaded through the elongated hole in the centre of the Mounting Bracket before the bracket is attached or left unattached to the bracket If the cable is to be threaded through the Mounting Bracket make sure that there is enough cable left free to enable easy attachment of the Speakon plug and also that the cable is not trapped behind the bracket when the mounting screws are tightened Connecting the Speakon plugs and speakers is described in the following section 6 CONNECTING Extreme Series speakers are fitted with Neutrik Speakon connection sockets An appropriate Speakon plug is included in each pack Speakon sockets and plugs provide a reliable secure and potentially weather proof connection Either 2 pole Part No NL2FC or 4 pole Part No NL4FC plugs may be used The supplied plug is a 2 pole type 4 pole Speakon plugs can additionally be fitted with a weather proof rubber sleeve Part No BSL WR Speakon plugs and accessories are widely available from audio and electronic component distributors and retailers Diagram Three illustrates the assembly and connection of a 2 pole Speakon plug Remember to thread the cable through the Rear Housing and Clamp Ring before connecting it to the terminals Strip approximately 6mm o
10. t degrade performance and at worst result in complete failure The enclosure surfaces should also be handled sympathetically Any cleaning should only require a soft cloth slightly dampened if necessary Be wary of using any polishes or solvent based cleaning agents The packaging should be retained for future use Neutrik and the names of Neutrik products referenced herein are either trademarks and or service marks of Neutrik The location of speakers within a listening environment is likely to have more influence over their subjective performance than any other aspect of installation It is worth spending some time considering both the finer points of speaker location as well as the larger scale issues of room and speaker layout If you are already familiar with the acoustic characteristics of the listening environment and the way speakers perform in it you may already have a good feel for where to position the speakers However installing any new audio component provides a good opportunity to review an existing set up and perhaps make improvements Extreme Series speakers are not magnetically shielded and should not be positioned in close proximity to magnetically sensitive equipment and media DIAGRAM ONE Stereo and Home Theatre Positioning If a pair of speakers is to be used in a conventional stereo audio system or for the front channels in a home theatre system they should be positioned approximatel
11. y as follows At least 1 0 metre from side walls Between 2 5 and 3 5 metres apart Clear of corners Angled inward towards the listening position At or slightly above listening head height If a speaker is to be used for the centre channel in a home theatre system it should be positioned approximately as follows Directly above or below the display screen If two or more speakers are to be used for the surround channels in a home theatre system they should be positioned approximately as follows e Generally in line with or behind the listening position At least 0 5m above listening head height Diagram One illustrates general home theatre speaker positioning Don t worry if thanks to the architecture or layout of your room it is not practical to follow each requirement exactly The most important thing is to consider the different options that are practical and identify the one that is likely to work best Utility Speaker Positioning If Extreme Series speakers are to be used as multiple utility speakers in an environment where the intention is to provide background music and or public address announcements they should be equally distributed throughout the space and mounted above head height Mono audio is usually preferable in utility applications but if only stereo is available multiple speakers should be connected alternately to the left and right channels In choosing locations for th
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