December 1999
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Precision Alignment Made Simple
Review By Steven R.
Rochlin
My love affair for these product
began during the CES of 1998. While walking through the usual maze of ho-hum displays
my bloodshot eyes gazed upon what seemed to be a full Formula 1 racing outfit!
Formula 1 racing is my love, my soul, my passion! Needless to say i went gaga. Those who know me realize my deep
love for all things Ferrari. From the substantial to the mystique, once you
have been bitten by the "Prancing Horse" bug there seems to be no
turning back (and why would you want to?). The point? Formula 1 is like high-end audio
where even the most minute details are thoroughly explored. Small, almost immeasurable
advancements in a full setup can spell the difference between
winning and losing a race. Of course every Formula 1 team uses the most
state-of-the-art tools for consistency and utmost precision. So why is it that
for system set-up a high-end system owner uses lousy tape measure... or worse
still
"by one's eye" for proper speaker placement setup? Would you align
your automobile's front tires "by eye"?
Get real! Your home music reproduction system is an investment
as is your car. Would you want the manufacture it to
simply judge parts alignment during the initial design "by eye"? And
how about your home you systems resides in? Shall we build that by eye too?
How about the
initial land survey taken to achieve your property lines? So if all these
professions use high precision tools for proper alignment how about high
performance audio? Well it is now time i
introduce you to the ultra-precise, totally accurate, Formula 1 meticulousness of speaker
placement. Welcome to the Sound Alignment Systems' (SA-S) Laser Tools Checkpoint
Professional system.
The Checkpoint system consists of various laser pointing
products, laser accessories plus speaker Stackers and Base Plates. To give a
basic overview simply think of how a land surveyor completes their job. We are
referring to high-precision work where mistakes are not forgivable.
What the wise men at SA-S. have done is make available tools much like a surveyor
for the truly died-in-the-wool "audiophile" and system contractor to
accurately setup their speaker systems. Of course the videophile will use this
system for projector and screen alignment if they truly value proper
placement. As for audiophiles, once you have decided where the basic
positioning for the speakers and listening position are, then it is
mapping time.
SA-S
provides the professional installer with various grids to properly map frontal
(front of the room),
intermediate (approximately front 1/3 of the room) and center positioning
(center room). This positioning could translate into
being either the listening position or component location. Once all the basic positioning
is well planned within the grid we can then use the SA-S's various laser
tools and accessories for absolute precise placement.
As
for accessories, they offer quite a few, though the main ones i used here the
magnetic Mag Switch and Base plate. The Mag Switch attaches to the back of the
laser tool (shown here in red) and attaches to the metal black Base Plate that
has been attached to the speaker (preferably near the center). The laser then
projects a red dot from the front. In my room the dot then shined on the rear
wall and i was able to mirror-match the right and left speakers by insuring
the red laser dot was hitting the wall at precisely the same alignment spec
per each speaker's given proper positioning. So what happens if you want to
insure vertical or horizontal alignment, or set-ups that use multiple speaker surround
sound setup?
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SA-S also offers accessories such as the Line Lens (green) or
the Beam Splitter (red). The Line lens converts the single laser point into a
laser line so that i got a straight line shining on to my sound room's rear
wall. The Beam Splitter allows the usual dot to shine straight out of the
front, but it also shines a dot 90 degrees simultaneously. This allows for
absolute alignment to, say, those who desire perfectly square aligning of a
system. Both accessories also rotate 360 degrees about the Lens Adapter Base and works in conjunction with the Protractor for degree referencing.
There are other accessories
offered, yet the above are the ones i used the most. The SA-S website gives
full details of all the available accessories.
Well,
those and the R2D1 or R2D2 Rotary Base. The R2-D1 is a single plate Rotary
Base designed for tabletop or surface use and the R2-D2 is a double plate
Rotary Base designed to be used on any surface application. Suffice to say i
use the R2D2 unit. The really cool thing here is that it also fits onto any standard camera, video, light stand! For dudes like me who use professional medium-format
photographic gear, the SA-S helps to establish the "zero" plane of reference for height and to calibrate product layouts for those important photo shoots.
The complete SA-S system brings a professional and thorough
set of tools and procedures to insure a system is 100% aligned within it's
environment. As much as i tried to describe the step by step procedure, the
simplicity of the description on the SA-S website did a better job so here it
is:
Component Placement
Sonic Alignment
In the first step, "Component Placement", do not worry "which way" anything points. Simply set the actual paired speaker system symmetrically, meaning equal distance and height from the listening position. Each pair should be equal and opposite as in two front, two rear, etc. Use the SA-S layout sheets to aid in diagramming of this layout position so you can return to a particular set up that sounds the best after the alignment. Use the A-1 Box on the layout sheets as the listening position and simply measure and "plot" your components on the layout sheet. An outline of the room dimensions plotted on the layout sheet grid also helps orient this procedure. By using the layout grid sheets and the footage or distance scales to reference (i.e. the 5' front and 5' to left) for each component, the angle is then easily referenced by looking at the layout grid and locating which angle line is closest. In this case, you would see 45( as the angle of reference and now be able to confirm the actual footage "out and over" to make each side or pair equal in layout.
Now that this is established, let's set the "sonic alignment". This may require two steps, the first being to zero the alignment and secondly to set any desired toe or offset if required by recommendation or just to establish your own listening preference.
Take your Standard or Pro-SA-S unit with the Standard or Mag Switch attached and simply set the back of the unit flush against the face of the speaker enclosure as close to the main drivers as possible. Use your index and middle finger to straddle the SA-S unit, putting pressure on the front of the switch holding the back of the alignment switch flush on the enclosure. Now simply point the dot by moving the speaker enclosure to the exact listening position. Use the back of the chair or anything else as the target in the primary listening location. You have just "zeroed" the sonic alignment. Move from speaker to speaker to zero each enclosure exactly to the listening spot. When all are zeroed, test the sound.
This may be the optimum layout for many speakers and the recommended layout for many speaker manufacturers. Test for yourself. If toe and offset are required or desired this in an easy and exact second operation.
Hold the toe/offset Angle Guide with both hands in front of you. Look at the A-1 position box on the sheet. That (the A-1 box) is theoretically the speaker and it is facing "frontal" just as your eyes and body are. (Hopefully)
Look at the toe chart and establish what degree of toe you wish to try to achieve. Find the appropriate degree line and follow it on the sheet to where it intersects with the exact distance that the speaker is away from the target location or "where the dot is hitting". Remember that your speakers are zero, so looking at the toe chart will show you exactly the distance in inches from the -0- dot to move the laser dot and establish the desired toe angle you have chosen at a given distance.
Go back to your layout plot and write in the toe degree number on each component you have plotted. Now you have an exact component and toe angle plot sheet from which to reference the sound. Try three or four different toe setups with differing component placements. "Plot" each setup on a new layout sheet and you can easily go back to exactly the one you liked the best for a particular music selection. You may develop a specific layout for jazz, a second for rock, and so forth. Each one is easily repeatable with a few short SA-S procedures. We obviously recommend you advance to the pro-SA-S accessories and advanced layout procedure, using Base Plates, the Mag Switch, Lens Kits and a host of other professional tools. You can easily setup and certify the most demanding sound systems, although, as you can see, basic SA-S work can be easily accomplished with use of a standard SA-S unit and alignment switch.
Ok, so you have the tools, you read the instructions and you
have precisely aligned your entire system. So what is the benefit. Ahhh, here
is where the men are separated from the boys. The men use the SA-S system as
it brings their system into such precise focus that it will scare the pants
off 'em. This includes my very well aligned system, which previously was setup
precisely through measuring, was actually a bit off in some spots. Admitting
off by a little bit, yet still not perfect. Once my system was fully SA-S laser
aligned i was amazed how the depth of field was even more in focus and in fact
became slightly deeper too! There was a small yet perceptible "opening
up" of the envelopment. i would surmise the reason for the more opening
up and envelopment is because the phasing precision of the right and left
speaker now reach each ear at precisely the same time. This, in turn, gives a
more unified sound cues to my ears. This is why we have time and phase aligned
speakers, so it makes sense to time and phase align the speakers as they are
within your sound room.
The bottom line here is that the SA-S is so important and so
very impressive it has been given the THX blessing. While the system is not
cheap, my feelings are that anyone who truly wants to have their system
properly setup should investigate using these tool for themselves. If you
claim to be a professional sound contractor, your customers deserve your using
the SA-A system. In fact all high-end stores should offer the usage of the
SA-S system to their customers. As for "professional" reviews such
as myself, how do they know the speakers are truly setup correctly if they do
not use the SA-S system? As for me, it's a keeper. Within the past three
months this system has been used with standard box speakers, horns and panels.
SA-S should be commended for finally offering the true music lover and music
professional tools for proper systems alignment. Your system and your ears
will thank you. As always... Enjoy the Music!
Manufacture's Reply
Steve,
A quick note to say thank you for the very thorough and positive review.
Your very good, and it's good to know that the industry is represented so well by you and
Enjoy The Music.com™.
Sincerely,
Tom Rodgers
Sales Manager
Sound Alignment Systems by Checkpoint
Email: sassales@gte.net
Fit and Finish |
95 |
Value for the Money |
95 |