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Related Manuals for Genelec Home Theater System
Summary of Contents for Genelec Home Theater System
- Page 1 Residential and Home Theater Loudspeaker Systems Design and Installation Guide...
- Page 2 Residential and Home Theater Speaker Systems Design and Installation Guide Version 5 Genelec Document BBAG007b Copyright Genelec Oy 11. 2006...
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Page 3: Table Of Contents
Home Theater Product Range 1.4.1 Products Overview 1.4.2 Enclosure Colours and Finishes 2. Planning the Installation of Genelec Products Terms used in this Guide Room Size Specification Listening Distance Front Loudspeakers - A Model for Every Requirement Center Channel Loudspeakers 2.5.1... - Page 4 Mid and High Frequency Treatment Room Modes, Reflections and Wall Behind the Loudspeaker Cancellations Home Theater Performance - The Right Combination of Products 6. Production and Quality Standards Genelec Manufacturing Process Safety Consideration Guarantee and Maintenance ISO 9001 Standards Product Awards...
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Page 6: Products And Technology
This guide has been created to help in the specification and installation of Genelec Residential and Home Theater Speaker Systems. Many questions arise from customers’ perspective and installers’ experience and it is hoped that this guide will give a better sense of direction and an improved Genelec Home Theater experience. -
Page 7: Directivity Control Waveguide
Directivity Control Waveguide In 1983 Genelec designed a loudspeaker system that was radically unique in shape and acoustical properties. The entirely smooth and curved enclosure provided no sound coloration of the drivers and excellent control of the sound dispersion into the room. - Page 8 180 W amplifier on the LF driver, 120 W on the proprietary Genelec 5” midrange driver and another 120 W on the 1” dome tweeter. All drivers are magnetically shielded. It is recommended for room volumes up to...
- Page 9 12” three-way system has a 180 W amplifier on the LF driver, 120 W on the pro- prietary Genelec 5” midrange driver and another 120 W on the 1” dome tweeter. All drivers are magnetically shielded. It is recommended for room volumes up to...
- Page 10 AIW26 In-Wall The AIW26 is Genelec’s answer for the need to hide powerful side and rear loudspeakers. The AIW26 comes as a complete ported enclosure fitting into a standard 2 x 4” wall structure. The 6.5” woofer and the ¾” dome tweeter drivers are each connected to separate 120 W amplifiers housed in the RAM1 amplifier module.
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Page 11: Enclosure Colours And Finishes
Most processors available today have unbalanced RCA outputs and all of the Genelec Home Theater Systems have XLR balanced line inputs so the DI8A is an excellent way to ensure noise free transmission of the signal. Gain adjustment switches allow the gain of each channel to be increased by +6 dB if the output level of the processor is insufficient for the loudspeaker input. -
Page 12: Room Size Specification
SPL is required in the listening area, then there is a model in the product line to satisfy most needs. The Genelec range has a consistent design philosophy from the 6020A all the way up to the 1036A. This is clear from the outside but is also true of the parts that cannot be seen. -
Page 13: Center Loudspeaker Enclosure Location
2.5.3 Center Loudspeaker Enclosure Orientation In the case of Genelec’s larger three-way center channel systems, the bass/mid crossover frequency is much lower so the horizontal off-axis cancellations do not occur here. There will however be a cancellation at the mid/treble driver crossover but this can be overcome by orienting the DCW vertically so that the crossover cancellation is then in the vertical direction, i.e. -
Page 14: Surround Loudspeakers - Dipoles Vs. Direct Radiators
A Genelec direct radiator, whose off-axis response is smooth and natural sounding, will provide a good solution for the new extended bandwidth surround sound formats (SACD and DVD-Audio) and still work in any sonic environment. -
Page 15: System Building - How To Mix And Match
Genelec has worked very hard to have an efficient system that has appropriately specified amplifiers AND has very low distortion. More subwoofers can be added to increase the maximum SPL of the bottom end of the frequency response in a larger system. See Table 1 for details about multiple subwoofers. - Page 16 ** Such recommendations assume that the system is bass managed at 40Hz. More subwoofers may be required for a higher crossover frequency. Consult Genelec for detailed subwoofer solutions for this sized installation. Figure 3. - Examples of balanced loudspeaker combinations for different sized applications...
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Page 17: Selecting The Right Model
HT324A or larger as the HT315A should only be used up to 7.6 m (25’). If there are any doubts about product selection for a particular room then please contact Genelec for advice. It is better to specify the correct system the first time so there are no problems after the room is finished as unnecessary fixes affect the reputation of the installer and Genelec. -
Page 18: Audio Cables And Wiring
IEC mains input socket and an On/Off switch. Remote Control Section Genelec Home Theater products have a power management section that allows the installer to enable or disable the ‘Autostart’ function as well as the ‘Power’ and ‘Standby’ indicator LED’s on the front of the loudspeaker enclosure. -
Page 19: Cable Requirements
2.12.2 Cable Requirements Genelec respects the dealer’s right to sell customers any good quality cable with good quality termina- tions that they feel is suitable for the installation. However, a few observations are detailed below: Loudspeaker cables are not required in Genelec systems (except for the AIW26 and AIW25 In-Walls and AIC25 In-Ceiling) as the amplifier is, in smaller systems, built into the loudspeaker enclosure. -
Page 20: Remote Control Cables
2.12.5 Wiring the Cables The input stages of all Genelec loudspeakers are designed to the highest standards, as used by broad- casters and music studios all over the world. They have electronically balanced inputs. In other words, transformers are not used so this means that the system is capable of electrically interfacing to either balanced or unbalanced sources. - Page 21 Figure 4. RCA unbalanced line to XLR balanced line wiring diagram Figure 5. High level amplifier output to XLR balanced line input wiring diagram NOTE: For 100 W amplifiers, double the resistor wattage values shown in the diagram made otherwise there could be a loss of input signal level (e.g. XLR pin 3 left floating will result in a thin and weak sound) or induced hum (e.g.
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Page 22: Operating Voltage And Power Requirements
2.13 Operating Voltage and Power Requirements Each Genelec Home Theater loudspeaker is delivered with a mains power cable with an appropriate plug for that country. The active electronic and power amplifiers are meant to be connected to an earthed mains connection (3-core mains). -
Page 23: Practical Installation Considerations
In Practice: Genelec recommends that its loudspeakers be positioned at least 1.2 m (4 ft) off the floor so the floor reflection does not dominate the frequency response. If the loudspeaker is placed close to the floor, for example, below a screen, two things happen: a deep and wide notch occurs in the bass (typically... -
Page 24: Subwoofer Positioning
Figure 6. ITU-R BS.775-1 Recommended Loudspeaker Positioning in Recording Studios around 100-200 Hz) and the loudspeaker is loaded which increases the entire bass output. Subjec- tively, the result is a muddy but thin sounding bass and midrange masking which makes speech less intelligible. -
Page 25: Bass Management
* If the subwoofer is positioned far away from the front loudspeakers, for example, on one side of the room or at the rear of the room, it may be necessary to lower the crossover frequency from 80 Hz down to 60 Hz in the bi-amplified systems to avoid localizing the subwoofer. ** Consult Genelec for subwoofer solutions for this sized installation... -
Page 26: Cabinet Mounting
3.4.1 Main Loudspeakers Genelec loudspeakers can be mounted into cabinetry. Experience has shown that the void to the sides and top of the loudspeaker should be filled as much as possible with insulation or dense open foam. This usually helps keep the cabinetry resonances under control and inaudible. Some setting of the Bass Tilt control may then be necessary to compensate for the additional loading on the bass driver - see Section 4.2.2 Using the Room Response Controls. -
Page 27: Installing Remote Amplifiers
There are no cooling fans on these adapters so they can be mounted inside the listening room and hidden so that the loudspeaker cable can be kept short. Two types of Genelec rack adapters exist. Rack Adapter (1037-412) This model can be used for the HT210 / HT210B and HT312A models. -
Page 28: Acoustically 'Transparent' Screens
However, care must still be taken as placing the loudspeaker too close to the screen can have a negative effect on the mid band frequencies. There should be at least 30 cm (12”) between the loudspeaker and the screen. Contact Genelec for recommendations on individual models. -
Page 29: The In-Wall Loudspeaker Systems Installation
3.8.1 General installation The Genelec AIC25 In-Ceiling loudspeaker and AIW25 and AIW26 In-Wall loudspeakers share the same basic structure with a separate loudspeaker enclosure and its dedicated amplifier module. All the necessary hardware for mounting the loudspeaker enclosure into a wall structure is provided with the kit. -
Page 30: Installing The Aiw26 In-Wall Loudspeaker Enclosure
Painting the Loudspeakers The visible parts of the loudspeaker (grill and its surround) can be spray painted to match the wall colour and interior decorations. Environmental Requirements for the RAM1 and RAM2 Amplifier modules The dual power amplifiers of the amplifiers generate some heat when used at full power. To avoid overheating, ensure that there is good airflow around the amplifier and no other heat sources close to it. -
Page 31: The Room Response Controls
4 dB. In all cases, this boost has to be compensated otherwise a natural sound balance will not be heard. This is achieved by using the unique Genelec Room Response Controls featured on all Home Theater loudspeaker models. -
Page 32: Using The Room Response Controls
The phase change control on Genelec subwoofers is actually a phase delay (0°, -90°, -180° and -270°) at 120 Hz so some simple maths is required to find the correct setting. For example, if the subwoofer is an extra 2.1 m (7’) away from center of the listening area compared to the center loudspeaker then the phase... -
Page 33: Balancing The System
so that listening is a pleasurable experience. Note that if the loudspeaker is placed behind a cloth or a perforated projection screen, then the Treble Tilt or Treble Level control can probably be set to 0 dB to compensate for the energy loss due to the sound absorption of the fabric in front of the treble driver. Tables 7 and 8 can be used as a rough guide of how to set the dip switches. -
Page 34: Other Processor/Decoder Settings
Other Processor/Decoder Settings Usually the loudspeakers’ bass management is implemented in the surround processor or decoder. So, for the Genelec Home Theater loudspeakers to perform in an optimum way, here are various basic rec- ommendations on processor/decoder settings: Small or Large? When selecting the menu ‘Speaker Type’... -
Page 35: Room Construction And Acoustics
To get the real benefit of such structures, they have to be constructed with extreme care and with proper supervision. Genelec recommends the use of a well-qualified room acoustician AND a contractor with experience designing Home Theaters or similar type rooms, such as music studios. -
Page 36: Mid And High Frequency Treatment
How can these low frequencies be controlled? There is one traditional but effective way of controlling low frequency energy and that is to build what is called a “¼ wavelength bass trap.” This bass trap is built over an area greater than 66% of a reflecting surface (typically the hard back wall). The idea is to convert the acoustic air movement (velocity) into heat energy and hence absorb the sound. - Page 37 Graph 2. A flat reverberation time (RT) Graph 3. High bass RT (red) and high treble RT (blue) Room Modes, Reflections and Wall Behind the Loudspeaker Cancellations Room Modes Every room (with the exception of a perfect anechoic chamber) has a set of resonant frequencies. These frequencies and their relative strength in the sound field are defined by room geometry and surface materials.
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Page 38: Room Modes, Reflections And Wall Behind The Loudspeaker Cancellations
To properly deal with boundary reflections, reflective surfaces should be minimised and some absorption should be placed near the loudspeakers. Also, by using Genelec controlled directivity loudspeakers, the ratio of direct versus reflected sound is significantly increased. -
Page 39: Production And Quality Standards
Production and Quality Standards Genelec Manufacturing Process Quality assurance is highly emphasized in the production process at Genelec Oy. In the spirit of Quality Policy, everybody in the organisation is committed to quality. Continuous improvement and zero-defect principles are part of the daily work. Quality assurance process in manufacturing is based on compre- hensive incoming inspection, electrical testing of all amplifiers, acoustical test of all products and finally checking visually all products before packing. -
Page 40: Further Advice And Information
7073A Active Subwoofer was honoured with the 2003 EQ Blue Ribbon Award. Further Advice and Information Further product information and installation advice can be found on the Genelec Home Theater web site (www.genelec-ht.com). Also, look out for Genelec dealer and installer training seminars organized by... -
Page 41: Copyright Genelec Oy
Residential and Home Theater Loudspeaker Systems Design and Installation Guide www.genelec.com Genelec Document BBAG007b. Copyright Genelec Oy 11. 2006 In Sweden please contact International enquiries: In the U.S. please contact: In China please contact: Genelec Sverige Genelec, Olvitie 5 Genelec, Inc., 7 Tech Circle Beijing Genelec Audio Co.