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Introduction to AV123 and your new 
Rocket UFW-12 Subwoofer  

At AV123, our absolute highest 

priority begins and ends with you, 
the customer.  You can rest as-

sured that if you’re not 100% sat-
isfied with your purchase within 30 

days from your original receipt 

date, you may return your product(s) for a 

prompt refund in full (excluding shipping 
charges) no questions asked.  In addition to the 

expert advice available on our website, or 
through our trained advisors, there is simply not 
a safer way to buy.  At AV123, misleading and 

high-pressure sales tactics are a thing of the 
past.  Not only do we offer you the tools and re-

sources necessary to fully evaluate your pur-
chase before the order is placed, we’ll back each 

and every sale after the fact with our in-home 
trial period.  

 
We’ve done our best to provide you with prod-
ucts and services meeting or exceeding your ex-

pectations.  However as good as our products 
are, they do not match our dedication to each 

and every sale.  Should you need any further 
assistance in the future with your A/V system, 

you can bet that AV123 will be there supporting 
and assisting you as you make your way to your 

next level of audio/visual enjoyment. 
 
The Onix Rocket UFW-12 (Ultra Fast Woofer) is a 

very potent and agile subwoofer.  Special care 
and attention was given to the UFW to ensure 

clean, accurate, and extremely detailed low-end 
performance in both music and home theater 

systems.  Features include a 1000-watt ampli-
fier, single band parametric equalizer, adjustable 

crossover, and phase adjustment for easy in-
room placement.  This flexibility will result in a 
seamless blend with all Onix loudspeakers, as 

well as those from other manufacturers. 

Section 1—Product Overview 

 

1.1 Control Panel Features (see figure 1.1) 

 

A. Power switch 
B.  Power On Indicator – Glows brightly when 

the unit is on.  Glows dimly when unit is 
in standby.  The unit will automatically 

turn on in the presence of an audio signal.  
Approximately 15 minutes of signal ab-
sence will cause the subwoofer to go into 

standby mode.  To fully turn off the unit, 
please unplug it from the wall. 

C.  Line Fuse – The UFW-12 is equipped with 

a 10-amp fast blow fuse (120V).  Always 

replace with the same rating. 

D.  Power Cord – A standard IEC socket al-

lows removal of the power cord. 

E.  L/R connection.  Use this connection when 

you also are utilizing the UFW-12’s built-

in crossover.  It is OK to use only the ‘L’ 
or ‘R’ input alone. 

F.  LFE connection.  When using your proces-

sors crossover, use this connection. 

G.  Crossover Adjustment – This controls the 

high-frequency cut off.  Generally this is 

set to 80Hz if used.   We will cover this in 
detail later in the manual. 

H.  Phase – This controls the phase of your 

subwoofer relative to the rest of your 
speakers.  Flip this switch while you listen 

at your listening position for the most 
bass. 

I.  Gain – This control allows you to match 

the output of your main/satellite speakers 

to the sub.  Set this to the lowest level 
when powering your system for the first 
time.  When calibrating your system, do 

not exceed 75% gain.  You’ll want some 
room for adjustment...try to avoid setting 

the gain in either your receiver (through 
the channel “trim” menus) or your sub-

woofer near maximum levels.  Doing so 
will also minimize the potential for a dis-

torted input signal. 

J.  EQ – Single band parametric equalizer.  

Includes controls for Frequency, Band-

width and Level.  Use these controls to 
modify the frequency response at any 

point.  The frequency range is 18Hz to 
80Hz…bandwidth from 0.1 to 1.0 oc-

taves…and a level adjustment from –
14.5dB to + 6dB. 

 
 
 

Содержание Rocket UFW-12

Страница 1: ...Rocket UFW 12 Subwoofer Enjoyment Guide Yours exclusively through 2150 W 6th Ave Suite L Broomfield CO 80020 Toll Free 1 877 543 7500 e mail info av123 com ...

Страница 2: ...know that the real test is how you feel about your subwoofer several months from now That s why AV123 will continue to work hard to earn your respect with technical advice and customer service that is second to none in our in dustry You can visit the AV123 website www av123 com at any time for up to date product information answers to FAQ s or to seek advice from the AV123 community at our online ...

Страница 3: ... Section 3 Connecting Your UFW 12 Subwoofer Section 4 Setting Up Your Surround Processor or Receiver 4 1 Small or Large 4 2 Simple Calibration 4 3 Crossover Settings 4 4 UFW 12 Phase Adjustment Section 5 Advanced Calibration and Correction 5 1 Performing a Room Frequency Sweep 5 2 Interpreting the Results 5 3 Advanced Parametric EQ Adjustments Section 6 Proper Care and Feeding 6 1 Warranty Policy ...

Страница 4: ...r manufacturers Section 1 Product Overview 1 1 Control Panel Features see figure 1 1 A Power switch B Power On Indicator Glows brightly when the unit is on Glows dimly when unit is in standby The unit will automatically turn on in the presence of an audio signal Approximately 15 minutes of signal ab sence will cause the subwoofer to go into standby mode To fully turn off the unit please unplug it ...

Страница 5: ... bottom of your UFW 12 Subwoofer On uneven surfaces use these feet to help compensate Brass Discs To protect your hard flooring surface we have also included metal discs to provide a contact point between your speaker spikes and the floor To use simply place the disc under the spike such that the small indentation is aligned with the point of each foot Rubber Feet As an alternative to both methods...

Страница 6: ...at you will find this fea ture an indispensable tool for shaping your sub woofer into the way you d like to hear it Flat clean and powerful More on this in section 5 2 2 Subwoofer Location The low frequencies played by your UFW 12 sub woofer tend to be non directional due the ex traordinarily long wavelengths involved As a result regardless of where your subwoofer is placed it should not be easily...

Страница 7: ... since much of the stress of producing deep bass will be eliminated Consequentially your loudspeakers should sound cleaner and more controlled An easy and user friendly way to test different methods and frequencies for crossing over your subwoofer is to use low frequency sweeps re corded on special program material One of our favorite is the AVIA Guide To Home Theater DVD Specifically the tones th...

Страница 8: ...or sound engineer of the film intended 4 3 Crossover Settings Your UFW 12 Subwoofer features a continuously variable crossover that allows you to set a low pass filter at any point between 30Hz and 200Hz In addition many popular receivers and surround processors also feature built in electronic cross overs please consult your receiver s instruction manual If present we recommend raising the UFW s ...

Страница 9: ...to 120Hz and record the SPL for each frequency played f Important Note The Radio Shack sound meter uses C weighting for its readout This compen sates for the inaccuracies of the human ear at low frequencies We want to measure the actual response As a result a correction key is needed to ensure proper response before your final measurements are plotted We suggest gather ing the data using the readi...

Страница 10: ... 0 the width of the area you ll be cutting or boosting will be a full Frequency Hz 30 50 80 73 67 79 one octave corresponding to an overall width start to finish of double the frequency half above AND below your center point In this ex ample we estimate the beginning of the peak in figure 5 3 to be at about 25Hz and the end of the peak at about 80Hz a range of around 55Hz However the 45Hz point is...

Страница 11: ...el Now that we ve defined our peak s width we move on to the goal of this exer cise to flatten it out For this we need to de cide how much boost or cut will be necessary In our sample data our center frequency 55Hz corresponds to a gain of right about 74 dB However as you can see in the above figure the rest of our curve is flat at about the 69 dB level Thus in this example a 5dB cut applied to ou...

Страница 12: ...e for up to 60 days after the date of purchase After 60 days the product must be returned to AV123 for repair only and return shipping costs are the responsibility of the customer All ques tions should be directed to customer service 6 2 Stay in Touch Remember that personalized tech support is only a phone call away Call USA toll free 877 543 7500 or worldwide at 303 543 7500 Whether you need tech...

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