OWNERS MANUAL - Sound Network
Contents
1. in It is unwise therefore to make too rapid a judgement about the performance of the monitors Your ears too will take some time to adjust to the new sound so revisiting the speaker positioning is best left for a few days 8 SPECIFICATIONS Model Type LF MF Driver HF Driver Filter Network Frequency Response Power Handling Nominal Impedance AE22 Passive 2 way closed box loaded 200mm pressed alloy cone Underhung 50mm dia voice coil 25mm Ring Radiator Neodymium magnet 3rd order Bessel at 2 0kHz 60Hz to 40kHz 3dB 200W peak programme 8 Ohms Sensitivity 87dB for 1 Watt at 1 metre Input Sensitivity N A Input Impedance N A LF Amplifier N A HF Amplifier N A LF Adjustment N A MF Adjustment N A HF Adjustment N A Dimensions H x W x D 250 x 350 x 300mm Weight single unpacked 10kg Acoustic Energy reserves the right to modify product specifications 9 WARRANTY Your Acoustic Energy speakers are guaranteed against original defects in materials manufacture and workmanship for 3 years 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 modificati2. Speakon plugs are as follows NL2FC 2 pole 4mm 10mm NL4FC 4 pole 5mm 11mm white Clamp Ring NL4FC 4 pole 9 5mm 15mm black Clamp Ring Cable runs to each speaker should be kept as short as possible consistent with each being of equal length 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 Amplifiers The AE22 is a medium sensitivity speaker that demands a relatively powerful amplifier for adequate monitoring volume levels to be achieved in an average studio room A minimum of 75 and maximum of 200 Watts into 8 Ohms per channel is recommended AE22s offer a relatively easy load to the amplifier and do not make unusually heavy demands on its current delivery No overload protection systems are fitted to the AE22 so it is possible to cause damage through over driving Such damage can occur regardless of the power rating of the driving amplifier and is not covered by any warranty If ever the sound at high volumes becomes distorted your AE22s are at risk of damage In such circumstances the volume must be reduced 5 CONNECTING AE22 ACTIVE Each active AE22 must be connected to mains power and signal cables Diagram Three illustrates the rear connection and control panel Mains Connection Mains power is connected via the IEC soc
3. in angle of the monitors may regain some image focus but again this may be at a cost of image width and high frequency balance Learning through experimentation how AE22s behave in your studio will help you find the optimum solution 0 5 metres from back wall 2 5 metres Reflection region Keep similar each side Listening position Page 2 4 CONNECTING AE22 PASSIVE Connecting passive AE22s to an amplifier is fundamentally a simple process However there are some choices to be made and issues to consider concerning speaker cable type Passive AE22s are fitted with a pair of binding post terminals and a parallel Neutrik Speakon socket The binding post terminals can accept stripped wires spade connectors or 4mm plugs Each of these termination methods is potentially equally effective and the choice is likely to be influenced by the type of speaker cable used The Speakon socket and plug provides enhanced security and reliability of connection and is the preferred option An appropriate plug is supplied within the packaging Speakon plugs are also widely available from audio and electronic component distributors and retailers Either 2 pole NL2FC or 4 pole NL4FC plugs may be used Diagram Two 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 of bare wire and co
4. 2 2 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 MA2201_R1
5. OWNERS MANUAL PROFESSIONAL 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 professional audio product monitors are sensitive to installation so please take a little time to read this manual and to follow as far as practical the installation guidelines it contains Careful installation will help ensure that your monitors perform optimally This manual covers both the Active and Passive variants of the AE22 Following this introduction the Manual is divided into sections covering installation positioning passive connection active connection active controls listening specifications warranty and contact information We recommend that you read at least the first six sections carefully before installing and using your AE22s In the case of the AE22 Active please also read the Important Safety Instructions below Important Safety Instructions Ensure that your AE22 Active is set to the appropriate mains input voltage before it is connected to a mains socket The warranty does not cover damage caused by incorrect mains voltage 1 Read these instructions 2 Keep these instru
6. ctions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with dry cloth 7 Do not block any ventilation openings Install in accordance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the grounding type plug A grounding type plug has two blades and a third grounding prong The third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparat
7. ket on the back panel Ensure before connecting to the mains supply that the voltage specified on the panel corresponds to your local mains voltage A mains fuse is located adjacent to the mains socket If the fuse fails it must be replaced by one of the same specification Repeated mains fuse failure indicates a fault which should be investigated by a qualified service engineer The AE22 power switch is also located adjacent to the mains socket Do not switch on until all connections have been made Illumination of the front panel display indicates that the AE22 is switched on PROFESSIONALAE22 HF Adjust MF Adjust LF Adjust Sensitivity O oOo Line Input Balanced XLR Unbalanced Jack Signal Connection The AE22 provides both balanced and unbalanced line level signal inputs for connection to the monitor outputs of the mixing desk digital audio workstation or computer audio interface A three position switch provides 6dB of input sensitivity adjustment The balanced input is via a three pin XLR socket and the unbalanced input via a concentric 6mm mono jack socket Always use high quality professionally terminated signal cables Do not plug or unplug signal cables while the AE22 is switched on ACOUSTIC ENERGY This speaker is NOT magnetically shielded CAUTION Risk of electrical shock Do not open Risque de choc electique Ne pas ouver No user serviceable parts inside Consu
8. lt Owners Manual before use Operate in accordance with Manufacturer s instructions If in doubt refer to qualified service personnel AM022 04 06 POWER INPUT FUSE RATING INPUT POWER 220W SERIAL No Se E Designed and Engineered by Acoustic Energy Ltd England Made in Malaysia Page 4 6 AE22 ACTIVE CONTROLS The AE22 Active is fitted with gain and equalisation controls on its rear connection panel and a control configuration display on the front panel The controls behave as described in the following paragraphs Sensitivity LF Adjust MF Adjust HF Adjust Page 5 Adjusts the AE22 amplifier input sensitivity to suit the output level of the mixing desk workstation or computer interface The three position switch offers 3dB OdB and 3dB OdB sensitivity is equivalent to 0 9V RMS input for maximum rated amplifier output at 400Hz Provides three options of low frequency equalisation Cut applies 3dB of attenuation at 70Hz Flat is the un equalised response and Extend applies 3dB of gain at 40Hz LF Adjust should normally be left Flat Cut is intended to model the LF characteristic of smaller speakers while Extend enables the AE22 to reproduce low frequency programme material or information that may otherwise go unnoticed Maximum volume capability is likely to be reduced when Extend is selected Provides three options of mid frequency equalisation Cut applies 2dB of attenua
9. nnect to the screw terminals within the Speakon If 4 pole Speakon plugs are used connect to the terminals labelled 1 and 1 Once the speaker cable is connected to the terminals the plug can be reassembled The Clamp Ring secures the cable as the Rear Housing is tightened 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 Take care not to connect any negative and positive terminals together and short circuit the amplifier Always make connections with the amplifier switched off 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 Connect Positive Connect Clamp Ring Plug Body Negative Rear Housing Neutrik and the names of Neutrik products referenced herein are either trademarks and or service marks of Neutrik Page 3 Cable Choice Choice of speaker cable type will be influenced by the characteristics of other components in your monitoring system and your dealer or distributor will be able to advise There are however some simple guidelines to consider The external cable diameters compatible with
10. on 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 For any sales technical or spares enquiries contact your local dealer or distributor first AE22 Active 2 way closed box loaded 200mm pressed alloy cone Underhung 50mm dia voice coil 25mm Ring Radiator Neodymium magnet 3rd order Bessel at 2 0kHz 60Hz to 40kHz 3dB N A N A N A 0 9V 3dB gt 10kQ 100 Watts RMS 60 Watts RMS 3dB E 40Hz Q 1 3dB 70Hz Q 1 2dB 400Hz Q 0 5 1 5dB 2kHz to 40kHz 250 x 350 x 330mm 15kg 10 CONTACT 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 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 EN Page 6 as A E
11. or will be able to offer advice Recommended Floor stand Specification Construction Style Direct coupled pillared Mass Loading Preferred Overall height As appropriate for AE22 tweeter to be at head height when seated Top plate Dimensions Minimum width 230 mm Maximum width 330 mm Minimum depth 200 mm Maximum depth 290 mm Top plate interface Direct coupled tri point or damped compliance Floor interface Floor spikes M6 minimum 3 POSITIONING The position of monitors within the studio room is likely to have more influence over their performance than any other aspect of their installation It is worth spending some time experimenting both with the finer points of monitor positioning as well as the larger scale issues of room layout If you are already familiar with the acoustic characteristics of your studio room and the way speakers perform in it you may already have a good feel for where to position your AE22s However installing any new component provides a good opportunity to review an existing set up and perhaps make improvements AE22s are NOT magnetically shielded Magnetically sensitive equipment or media should be kept at least 1m away The position requirements for a pair of AE22s installed in a typically sized and equipped studio room illustrated in Diagram One are as follows Between 1 5 and 3 0 metres apart Placed horizontally with tweeters outermost if the moni
12. tion at 400Hz Flat is the un equalised response of the speaker and Lift applies 2dB of gain at 400Hz Cut and Lift can help compensate in installations that result in an unsatisfactory midrange balance Provides three options of high frequency equalisation Cut applies 1 5dB of attenuation from 2kHz Flat is the un equalised response of the speaker and Lift applies 1 5dB of gain at from 2kHz Cut and Lift can help compensate in installations that result in an unsatisfactory high frequency balance The setting of each control is indicated by the front panel display of the AE22 illustrated in Diagram Four below The front panel display also carries two clip peak indicators which illuminate if either the low frequency or high frequency amplifiers reach their output limit The volume level should be reduced if the clip indicators illuminate more than occasionally AE 0000o ecco 0 0 0 0 LF MF HF SEN PK LF Adjust MF Adjust HF Adjust Sensitivity Clip 7 LISTENING Before using your AE22s for the first time 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 AE22s may take a little time to reach normal operating temperatures and to run
13. toring position tends to be below the horizontal axis and tweeters innermost if the monitoring position tends to be above the horizontal axis Between 0 2 and 1 0 metres from the rear wall Atleast 1 0 metre from the side walls Clear of room corners Don t worry if it is not practical to follow each requirement exactly The most important thing is to experiment with the different options that are practical and find the one that works best AE22s need not be angled inward towards the listening position although adjusting this toe in angle can be effective in fine tuning the AE22s high frequency tonal balance Wherever your AE22s are positioned it is important that each of the pair is located in a similar acoustic environment different environments would be say a curtained area and a solid wall The acoustic character of the walls ceiling and floor of the room in the area where the main reflections between speakers and listening position will occur should also be similar Once your AE22s are connected and working and you begin to become familiar with their performance it is likely to be worthwhile experimenting a little more with their positioning Reducing the distance between the monitors and the rear wall will increase the level of bass and low midrange making the monitors sound warmer The warmth however is likely to be gained at the expense of some mid range clarity and stereo image focus and depth Increasing the toe
14. us has been exposed to rain or moisture does not operate normally or has been dropped 15 The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids such as vases shall be placed on the apparatus 16 The MAINS plug is used as the disconnect device the disconnect device shall remain readily operable 17 To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture Page 1 The AE22 is both a heavy and a relatively delicate precision engineered product that can be damaged by inappropriate handling Please take care when unpacking or moving the monitors not to touch either of the drivers Damage to a driver will at best degrade performance and at worst result in complete failure The packaging should be retained for future use 2 INSTALLATION AE22s are intended to be used mounted horizontally either on a mixing desk meter bridge or on speaker floor stands in relative proximity to the rear room boundary Alternative on wall mounting arrangements such as wall brackets are possible although these may result in less consistent performance If brackets are to be used they should be as rigid as possible and firmly attached to brick built walls The construction style rigidity and dimensions of the floor stands are of critical significance to the performance of the AE22 Stands should broadly follow the specification below Your retailer or distribut
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