B E F O R E Y O U S TA R T
Please inspect each loudspeaker carefully.
Notify your Polk Audio dealer if you notice
any damaged or missing items. Keep the
carton and packing material. They will do
the best job of protecting your speakers
if they need to be transported.
C O M P O N E N T /
C O A X I A L S Y S T E M
I N C L U D E S :
1
Letter
1
Owner’s Manual
1
Online Registration Card
1
12" Polk Audio Vinyl Cut Decal
1
Tweeter Install Tool
1
Driver Mounting Template
1
Tweeter Mounting Template
2
Drivers
2
22mm Ring Radiator Tweeters
2
Tweeter Flush Mount Cups
2
Tweeter Angle Mount Cups
2
Crossover Networks
2
Straight Coaxial Tweeter Posts
2
Angled Coaxial Tweeter Posts (SR6500)
2
Driver Grilles with Logos
2
Driver Grille Mounting Rings
2
Tweeter Grilles with Logos
2
Driver 6" x 9" Adapters (SR6500)
2
Driver 5" x 7" Adapters (SR5250)
2
Driver 5" x 7" Adapter Plugs (SR5250)
2
Tweeter Flush Mount Clamps
2
Tweeter Angle Mount Clamps
2
#6 x 1/4" Pan Head Machine Screws
for Mounting Tweeter Cup
2
Driver Mounting Gaskets
2
Rubber Grommets
for Driver In Coax Mode
2
#6 Split Ring Lock Washers
for Tweeter Cups
2
Tweeter Post Thumbscrews (SR6500)
2
Driver Spacer Rings (SR5250)
4
Driver Spacer Rings (SR6500)
4
#8 x 1" Flat Head Sheet Metal Screws
for Mounting Crossover
8
#8 x 1/2" Pan Head Sheet Metal Screws
for Driver Mounting
8
#8 x 3/4" Pan Head Sheet Metal Screws
for Driver Mounting
8
#8 x 1 1/2" Pan Head Sheet Metal
Screws for Driver Mounting
8
Driver Mounting Clips
N E C E S S A RY T O O L S
Phillips Head Screwdriver
Flat Blade Screwdriver or
Door Panel Removal Tool
Electric Drill
1/4" & 1/8" Drill Bits
Reciprocating Saw or Razor Knife
Magic Marker for Marking the Cutout
(New Location Only)
Metal Cutting Tool
(Hole Saw, If You Intend to Cut Metal)
Metal File
A Supply of Solderless Connectors
Speaker Wire: 16-Gauge or Larger
Safety Glasses
Wire Strippers & Cutters
Crimping Tool
T W E E T E R S
WARNING:
Do not operate the tweet-
ers without crossover networks.
Damage to the tweeter from thermal
overload will result without the protec-
tion provided by a crossover and will
void your warranty.
The Polk Audio Signature Reference
tweeter, in component setup, offers
two mounting options for installation
flexibility.
(See Figure 6)
NOTE:
If you choose to operate the
system with an active crossover, the
crossover frequency for the tweeter
must be greater than or equal to 3.5kHz
with a minimum 3rd order (18dB/octave)
slope. Please note that the tweeter
could be damaged at excessive listen-
ing levels. For the best tweeter protec-
tion, use the crossovers supplied with
the systems.
T W E E T E R L E V E L
The jumper levels inside the crossover box
adjusts the level (volume) of the tweeter
relative to the mid/woofer. Start with the
jumper in the “0dB” position and listen.
If you want a “brighter” sound, move to
the left position, “+1dB,” (“+2dB”: SR5250)
and listen again. The “+1 dB” (“+2dB”:
SR5250) setting provides the greatest
amount of tweeter output. -1.5dB and
-3dB reduce output to a greater degree.
(See Figure 10)
P O L A R I T Y /
B L E N D I N G
If it seems that the tweeters and drivers are
not “blending” seamlessly, change the polar-
ity of both tweeters by reversing the positive
(+) and negative (-) tweeter wires at the
crossover. Reversing the phase of the tweet-
ers will usually optimize the blending of the
system components when the tweeters and
drivers are located far apart from each other.
A M P L I F I E R P O W E R
R E Q U I R E M E N T S
Your speakers will work well with a variety
of electronic components. As little as 25
Watts (RMS) per channel will deliver ade-
quate listening levels in most cars. If you
intend to play your system at loud listening
levels, more power is necessary to achieve
the best performance. Consult your Polk
Audio Dealer for specific recommendations.
We recommend using an external power
amplifier that has a power rating of 50 - 150
Watts per channel to get the best possible
performance.
P O L K A U D I O C U S T O M E R S E R V I C E 1 - 8 0 0 - 3 7 7 - 7 6 5 5 ( O U T S I D E U S A & C A N A D A : 4 1 0 - 3 5 8 - 3 6 0 0 )
M O N D AY- F R I D AY, 9 A M - 6 P M E S T, P O L K C S @ P O L K A U D I O . C O M
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