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Genesis 1.2 Owners Manual And Set-Up Manual

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  • Page 2 ~ÄëçäìíÉ=ÑáÇÉäáíó Owners Manual and Set-up Guide: Genesis 1.2 Loudspeaker System Contents SET-UP GUIDE 1.1 U NPACKING 1.2 P 1.2 L LACEMENT OF THE ENESIS OUDSPEAKER 1.3 S ERVO ONTROLLED MPLIFIER YSTEM 1.4 P OWER ONNECTIONS 1.5 W OOFER ONNECTIONS 1.6 S...
  • Page 3 CONTROLLED MPLIFIER ROSSOVER 5.7 T ROSSOVER 5.8 C ™ B ORIAN AFFLE INGS AND ASES SUMMARY Genesis Advanced Technologies 654 S Lucile St Seattle, WA 98108 USA Tel +1 206 762 8383 Fax +1 206 762 8389 www.genesisloudspeakers.com Ver 1.0...
  • Page 4 Fourteen years later in June 1993, Nudell, in collaboration with Paul McGowan, introduced to the world the Genesis I – a new benchmark for the reference loudspeaker system. In 1999, the GI was upgraded to become the G1.1, with a longer and larger midrange ribbon, and...
  • Page 5 ~ÄëçäìíÉ=ÑáÇÉäáíó highest frequencies. Despite the use of different materials and technologies – kapton and mylar ribbon, and solid aluminum cones, the crossover between the tweeters, midrange, and woofers cannot be discerned even by trained, experienced listeners. Pace, Rhythm, and Timing: The G1.2 plays rock, jazz, dance music, contemporary, and Latin American as well as it does classical.

  • Page 6: Set-Up Guide

    ~ÄëçäìíÉ=ÑáÇÉäáíó emanating from a performance are reproduced, i.e. sound waves bounced from the walls, floor and ceiling of the venue, attenuated in amplitude and displaced in time, can be resolved in space by two stereo channels. If a reference system can slice time “thinly enough”, and have excellent low-level resolving power, one can experience many such bounces off surfaces;...

  • Page 7: U Npacking

    ~ÄëçäìíÉ=ÑáÇÉäáíó 1 Set-up Guide Now that you have your new Genesis 1.2 loudspeaker system, we realize that you can’t wait to hook it up and start playing! However, this is a big, complex system. There is no “quick” set-up. You will need at least four strong people. Be prepared to allocate 4 to 6 hours to the initial unpacking, set-up and configuration.

  • Page 8: Placement Of The

    Do not try to use spikes or other third party suspension systems. The weight of the G1.2 is more than sufficient to anchor them to the floor. 1.2 Placement of the Genesis 1.2 Loudspeaker The G1.2 requires a large room in order to give the speaker ample space from the walls so that it can perform at its best.
  • Page 9 12 feet in front of the speakers, you have too small a room to accommodate the Genesis 1.2’s. 1.3 Servo-Controlled Bass Amplifier System The 12-channel Genesis Servo-Controlled Bass Amplifier comes in a total of ten (10) modules. It comprises: Left and Right Control Modules with left and right balanced inputs and a pair of control outputs (each Control Module is built as a dual-stereo unit, but only one input is used in each).

  • Page 10: P Ower C Onnections

    1.5 Woofer Connections Included with your Genesis 1.2 is a set of four large cables (with 3 channels each) used to connect the woofer towers to the Servo- Amplifier Modules.

  • Page 11: M Idrange /T Weeter

    ~ÄëçäìíÉ=ÑáÇÉäáíó convenience. Use the pair with red lettering for the right channel and white lettering for the left channel. Connect the appropriate ends to the outputs of your Servo-Amplifier Modules, and the input plate on the woofer towers. It does not matter which connector is attached to which woofer as long as the left/right channels and cable direction are correct.
  • Page 12 +ve and –ve speaker outputs floating above ground. Some of these amplifiers have as much as 36V on their speaker “ground”, and this will damage the Servo-Controlled Bass Amplifier. Please contact Genesis or your dealer if you are unsure. Ver 1.0...
  • Page 13 Transformers into the wall outlet. And you are now ready to begin. Servo-Bass Amplifier Remote Your Genesis 1.2 servo-bass amplifier system is supplied with a Logitech Harmony™ remote control. This is a universal remote control that can also be programmed to control the rest of your music system.

  • Page 14: B Ass C Ontrol A Djustments

    ~ÄëçäìíÉ=ÑáÇÉäáíó Please visit the Harmony Remote website for support, and to activate and configure your remote. 2.2 Bass Control Adjustments Your servo-bass amplifier should be the last thing you turn on in your system, and the first thing you turn off. As a general rule, turn your system on starting at the source to the amplifiers, and turn it off starting at the amplifiers back to the source.
  • Page 15 ~ÄëçäìíÉ=ÑáÇÉäáíó how low the woofers will play, and the low-pass filter determines how high the woofers play to. The frequency that you set these filters to will be the “knee” frequency after which the woofers will attenuate by 6dB per octave, and is not the –3dB point. The high-pass filter and low-pass filter is set using the up/ down/ left/ right navigation ring around the OK button.

  • Page 16: B Egin With The Bass Level

    A possible solution will be to install an additional 20amp circuit in your listening room for each channel of the bass. Also, the Maximum Dynamic Headroom Reservoir (developed for the Genesis Reference Amplifier) is available as an optional upgrade in some extreme situations (that we have not yet encountered in all our testing!!) 2.4 Crossover Controls...
  • Page 17 ~ÄëçäìíÉ=ÑáÇÉäáíó Concentrate on the mid-bass regions (as opposed to the very low bass in your recording) to achieve a natural blend. The voice and the music accompaniment should sound as if it were cut from one cloth, not separate. The reason we use a female vocal to start is that male vocals will have very much more bass content, and the lower bass may obscure the mid-bass crossover point.
  • Page 18 ~ÄëçäìíÉ=ÑáÇÉäáíó When such music is used on the G1.2, you may find that the bass bloated and “fat”. Do not use such music for tuning your system. The G1.2 is capable of a bass response that is flat down to 16Hz. When music with a bass boost (or worse, a rising bass response) is played, there is the danger that the woofers will bottom and/or the current limiters will kick in.

  • Page 19: Phase Control

    ~ÄëçäìíÉ=ÑáÇÉäáíó right for the singer, everybody else in the band. The mystery was solved when we looked at a picture of the recording session, and noticed that the singer was looking down towards her notes, and the microphone was hung over her head. It was no wonder that when the system is correctly adjusted, it sounded like the singer was standing in a pit in relation to the rest of the instruments in the band.

  • Page 20: F Urther Adjustments

    ~ÄëçäìíÉ=ÑáÇÉäáíó Using the remote control you can adjust the woofer's phase angle up or down in five-degree increments. Depending on proximity to walls, open spaces, cavities and cabinets, the gain, low-pass and phase of the left and right woofer towers may be different. The changes are subtle and they usually affect the imaging and soundstage.

  • Page 21: Running-In The

    4.1 Running-in the System We often make the mistake of setting up a “cold” system, and then are disappointed when the system breaks in. For all Genesis loudspeakers, we recommend the use of the IsoTek Full System Enhancement and Rejuvenation Disc. This will reduce the hundreds of hours of run-in time needed to a couple of days.

  • Page 22: Appropriate Mid-

    This simply means that the left and right drivers "work together" as opposed to working independently. With the broad wings of the Genesis 1.2, we have not found this to be a problem. However, if the tweeter-to-tweeter distance is more than 10 feet, or the gap between the two wings is more than 7 feet, you will find that the speakers lose coupling, and the mid-bass suffers.

  • Page 23: Room Treatment

    A Genesis loudspeaker system, correctly set up, can and should provide a soundstage that goes beyond the confines of the walls of your listening room, and yet with pinpoint focus; the speakers disappearing completely on a recording containing such information.
  • Page 24 ~ÄëçäìíÉ=ÑáÇÉäáíó curtain across a window causes only a small amount of absorption. Sidewalls. Because the speaker is a dipole it is less sensitive to the sidewalls. However, as a rule of thumb, it is a good idea to keep the speaker as far away from the sidewalls as is practical.

  • Page 25: The Technology

    The Genesis 1.2 is a near perfect line-source that is over 7 feet tall (nearly the room’s entire height). A line source has no vertical dispersion at any frequency. Hence there is no sound bouncing from either the floor or the ceiling.
  • Page 26 ~ÄëçäìíÉ=ÑáÇÉäáíó Another advantage of the 7-foot line source is that the vertical spectral content of music is virtually the same throughout the length of the line source. Hence, the seating height does not matter with this speaker; unlike point source speakers where it is important for the ears to be aligned with the tweeter.

  • Page 27: Inch Midrange Ribbon

    The Genesis 1.2 uses twenty-six of these tweeters matched to within 1dB configured as a vertical line source (twenty front-firing, and six to the rear). In addition to creating the dipole line source, the output is distributed over many drivers, with each working at very low-stress.
  • Page 28 The history of the Genesis servo-system started from the first introduced in the legendary Infinity™ Servo Statik One in 1968(!) –...
  • Page 29 5.5 The Woofer Tower The Genesis 1.2 features a total of twelve horizontally-opposed 12- inch woofers per channel mounted in a 7ft 3in tall tower operating in unison to control the air mass of the listening room. This means that...

  • Page 30: The Crossover

    ~ÄëçäìíÉ=ÑáÇÉäáíó In the Genesis 1.2, the amplifier was designed as a holistic system of integrated connecting cables, woofers, custom tailored EQ network and remote controlled crossover circuitry. Two separate Servo- Amplifier Modules each with its own 2kVA Power Transformers are used per channel.
  • Page 31 This results in a completely inert baffle from which to launch the midrange and high-frequency soundwave. 6 Summary The Genesis 1.2 contains the knowledge and experience of over 40 years of loudspeaker design. We believe that no other product in the market can approach the sonic realism of the Genesis 1.2.

  • Page 32: Specifications

    Rear Tweeters (+/- 1 dB) Midrange (+/- 0.75 dB) Input Impedance: 4 ohms (nominal) HF Transducers (per side): 26 Genesis 1” Circular Ribbon Tweeters (20 front, 6 rear) Midrange Transducer (per side): Single 75” Ribbon LF Transducers (per side): Twelve Genesis 12” woofers...

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