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Block Diagram

About Subwoofers

Here are a few bass basics. The ear is far less sensitive to very low frequencies than it is to mid-
range frequencies. A 1,000 Hz sound at 95 dB SPL may seem obnoxious and painful to the ear
while 50 Hz. at 95 dB SPL will seem pleasantly powerful. Musicians, composers, and producers
know this instinctively and create music that contains a great deal of energy below 100 Hz. In order
to properly produce or reproduce this music, an audio system needs to be capable of delivering
much more acoustic output at low frequencies than in the mid band. Note that the capability of
delivering more output should not be confused with the characteristic of low-frequency equalization
boost. A system that is equalized to be perfectly flat may require as much as 20 dB more maximum
SPL capability in the low bass. This is because the requirement for the extra energy is already built
into the music. And contemporary dance music may rely even more on low frequencies for its
power and energy.

To meet this need, speaker designers developed specialized speakers called subwoofers.
Subwoofers are intended to work below 150 Hz. In fact, most subwoofers will sound downright bad
if you try to use them to reproduce sound above 200 Hz. There are even sub-species of subwoofers.
Some subwoofers are designed for extreme low–frequency extension and will go down as low as
20 Hz. This type of performance is usually more useful for cinema effects than for music. A sub that
goes down this low will be very large and probably require a lot of amplifier power. Another variety
of subwoofer that may be more appropriate and practical for portable music applications concen-
trates on delivering “punch”. Punch is what you experience when the kick drum hits you in the
chest. Much of what we think of as punch is in the 80 Hz. region.

Until recently, adding a subwoofer to a system was a complicated matter that required external
crossover networks, extra power amplifiers, and of course the subwoofer itself. The EON Sub G2
simplifies this task by combining all this into a single, simple and light weight system. 

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Summary of Contents for EON PowerSub G2

Page 1: ...EON Sub G2 User s Guide Part Number 981 00059 00 Rev A...

Page 2: ...5 Technical Specifications 6 Frequency Response 6 Available Accessories 6 Controls and Connections 7 Connectors 7 Switches and Controls 7 Indicators 7 Block Diagram 8 About Subwoofers 8 Application Ex...

Page 3: ...r system please review the following for important informa tion on safety and protection of your investment in quality loudspeakers Mounting Suspending EON Speakers EON speakers are designed for porta...

Page 4: ...rom fully penetrating the socket Check the stand specification to be certain it is designed to support the weight of the speaker see specifications Observe all safety precautions specified by the stan...

Page 5: ...Freq 125 Hz Maximum SPL 117 dB 1 m 3 3 ft Dimensions H x W x D 686 mm x 430 mm x 444 mm 27 in x 17 in x 17 5 in Net Weight 19 5 kg 43 lbs Driver Integral frame with one 15 380 mm driver dual neodymiu...

Page 6: ...Powered Mixer and Passive Mid High System for more details Switches and Controls POLARITY The performance of a subwoofer depends on how it interacts with the mid high speaker system Depending on chara...

Page 7: ...even more on low frequencies for its power and energy To meet this need speaker designers developed specialized speakers called subwoofers Subwoofers are intended to work below 150 Hz In fact most su...

Page 8: ...powered speakers 9 T P U T U O P U T N I Rev Norm SIGNAL SPEAKER LEVEL IN PEAK VOLUME POLARITY LINE LEVEL LOOP THRU T P U T U O P U T N I Rev Norm SIGNAL SPEAKER LEVEL IN PEAK VOLUME POLARITY LINE LEV...

Page 9: ...nal engineers will create a separate mix for subwoofers from the Auxiliary buss of the mixer This technique can improve low frequency system performance in a number of ways The system operator has ind...

Page 10: ...Powered Sub with Passive Mid High The SPEAKER LEVEL INPUT on your EON Sub G2 provides a simple and convenient way to add subwoofers to a system with passive 2 way speakers 11 IN THRU IN THRU...

Page 11: ...The EON Sub G2 has no user serviceable fuses Failure of fuses is most frequently a symptom of problems requiring service by a competent technician Troubleshooting Symptom Likely Cause What to do No so...

Page 12: ...escope the audio ground by using an XLR F to XLR M adapter with Pin1 disconnected on one end Re route audio cables away from AC power and lighting cables Excessively long unbalanced cable Use the bala...

Page 13: ...ginal shipping cartons because a charge will be made if replacement cartons are requested Payment of shipping charges is discussed in the next section of this warranty How to Obtain Warranty Performan...

Page 14: ......

Page 15: ...CT INFORMATION Mailing Address 8500 Balboa Blvd Northridge California 91329 Customer Service Monday through Friday 8 00am 5 00pm Pacific Coast Time In the U S A 800 8JBLPRO 800 852 5776 On the World W...

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