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Ver 1.0 Sep 2011

 

11

 

a bs o l u t e  f i d e l i t y

®

 

increments (approximately half an inch at a time) and return often 
to the recordings you have used to adjust the front to back depth 
and soundstage properties of your system. It is easy, yet 
unproductive, to go too far as you will create a boominess in the 
sound. 

Secondly, you may make the mid bass produced by the top of the 
woofer out of proportion with the mid bass produced by the bottom 
of the midrange ribbon. This would tend to sound bloated or thick in 
the mid bass regions. 

Another good rule of thumb is to set the 

BASS GAIN

 for proper 

midbass rather than low bass. The theory is that if the midbass is 
correct, then the low bass should be very close to correct. If the 
midbass is proper and the low bass is still not right, here are some 
other suggestions. 

A good balance between proper low bass extension and a deep 
and spacious soundstage needs to be established to optimize your 
new speaker's performance. This is because large space 
ambience information is largely in the lowest frequencies. The 
wavelength of a 20Hz soundwave is approximately 52 feet (16m), 
so if you want to recreate the soundspace of a cathedral, you will 
need to go lower than even 20Hz. 

In order to achieve what the speaker is capable of we suggest you 
focus your efforts on a proper balance

 

of soundstage elements that 

includes information beyond the left and

 right sides of the 

speakers, front to back depth well behind the speaker, excellent 
focus of instruments and voices with proper vertical information and 
mid bass fill. 

A Genesis loudspeaker system correctly set up, can and should 
provide a soundstage that will “melt the walls” and with pinpoint 
focus, the speakers disappearing completely on a recording 
containing such information. 

Room Treatment 

No room is perfect. To optimize your sonic presentation it may be 
helpful to treat your room. Here are some guidelines: 

1.

 

Front walls

. This loudspeaker is a dipole and therefore 

there is sound coming from both the front and the back of 
the speaker. How the front wall is treated or not treated is 

Summary of Contents for Genesis 2.2 Junior

Page 1: ...2jr...

Page 2: ...MIDRANGE AND TWEETER CONTROLS 5 BEGIN WITH BASS TUNING 5 IMAGING AND SOUNDSTAGE 7 THE REFINEMENT STAGE 9 MAKE ONE CHANGE AT A TIME 9 DEFINING THE SOUNDSTAGE 10 APPROPRIATE MID BASS LOW BASS BALANCE 10...

Page 3: ...ing levels If you are looking for just LOUD this is the wrong loudspeaker A Ferrari and a Caterpillar may have the same price and horsepower but they are very different vehicles and you wouldn t use y...

Page 4: ...dspeakers is only for 90 days unless the Extended Registration Card is sent directly to Genesis Please write the purchase details of your Genesis 2 2 Junior here for future reference Remember send in...

Page 5: ...ntegration of the drivers Since the loudspeakers themselves are 28 inches 0 7m deep the room has to have a minimum length of about 18 feet 5 5m to allow for some space behind the head of the listener...

Page 6: ...e After unpacking we strongly suggest that the crates be dismantled flattened and safely stored away in a cool dry place It is expensive to custom build crates strong enough to transport these loudspe...

Page 7: ...ack of the G2jr These are labelled BASS GAIN LOW PASS TWEETER and MIDRANGE Set them initially pointing straight up the 12 o clock position This is the nominal flat position and will work for the major...

Page 8: ...ut your ribbons The amplifier although it is very efficient also has a thermal cut off to protect against over heating Should the bass amplifiers turn off and the back plate is very hot to the touch t...

Page 9: ...be turned up Use this control if you need a bit more treble or to increase the apparent space of the soundstage Start with this control at the 12 o clock position The MIDRANGE control on the right sid...

Page 10: ...could put a distance scale on the BASS GAIN control Once this relationship between BASS GAIN listening position and the room is understood setting the correct bass level should be relatively straightf...

Page 11: ...one direction If at this point it does not have enough mid bass turn the low pass up to a higher position or alternately position the speakers closer together in order to achieve better lower midrange...

Page 12: ...speakers much beyond 1 3 of the way into the room it is unlikely that pulling them further away is reasonable Too much absorption on the wall behind the speakers will also result in less depth in the...

Page 13: ...s in the depth and width of the soundstage will increase and so will the smoothness of the sound Ultimately it is all about balance You have a number of controls at hand with which to adjust the bass...

Page 14: ...not achieve what you are trying to do The recordings in the Genesis Loudspeaker Set up Procedure have all been carefully chosen so those will be the fall back recordings to use for system set up Appro...

Page 15: ...aker s performance This is because large space ambience information is largely in the lowest frequencies The wavelength of a 20Hz soundwave is approximately 52 feet 16m so if you want to recreate the...

Page 16: ...s undesirable because it is slightly delayed from the original sound This point on the sidewall can be easily determined with the help of a second person and a mirror Sitting in your listening positio...

Page 17: ...we rely on hundreds and hundreds of hours of critical listening There are changes we can make to the crossover that we can measure but can hardly hear the difference And then there are the changes tha...

Page 18: ...order for all frequencies of sound from the loudspeaker to reach the listener at exactly the same time a coherent wave front is important not just time alignment of drivers The ideal is either an infi...

Page 19: ...a point source loudspeaker This is the great advantage that a line source loudspeaker will have over a point source loudspeaker in a large room As a result the change in loudness of the line source i...

Page 20: ...speed of the best ribbon electrostatic designs without the high distortion and poor dispersion that is typically associated with them The G2jr uses twelve of these tweeters configured as a vertical l...

Page 21: ...bass system is an easy one to understand It employs an accelerometer as a sensor to constantly monitor the movement of the woofer cone and continuously compares it to the input signal This comparison...

Page 22: ...niquely designed metal cone driver made for the Genesis servo system Made with a cone of solid aluminium the suspension and voicecoil have been maximized for long distortion free excursion so as to in...

Page 23: ...ecially designed and tuned Dynamic Power Delivery System DPDS power supplies are used one for each speaker with two channels to deliver balanced dynamics which are critical to bass accuracy This impro...

Page 24: ...l defeat this system The spike passes all frequencies to the spike cup and then depending on the diameter of the spike cup it passes only frequencies below a particular frequency A copper penny gets d...

Page 25: ...h Frequency Response 16Hz to 40kHz 3dB Controls Rear Tweeters 1 5 dB Midrange 0 75 dB Bass Gain 12dB 3dB Low Pass 71Hz to 135Hz Input Impedance 4 ohms nominal Sensitivity 91 dB watt 1 meter Amplifier...

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