PSC 221 Phase Shifter OWNERS MANUAL POWER CLASSTM CONTENTS (click on a topic to view) Congratulations Functions Features and Specifications Maximizing Performance Installation Maximizing Performance Installation Troubleshooting Wiring System Diagram 1 Wiring Block Diagram Functions Warranty
Congratulations and thank you..... for choosing PrecisionPower audio epuipment. At PrecisionPower we proudly design, engineer and manufacture audio products at our facility in Phoenix, Arizona. Our award winning engineering team utilizes innovative technology to consistently deliver Absolutely State of the Art performance, sound quality, reliability, and value.
FEATURES / SPECIFICATIONS Adjustable left and right channel phase shift control Phase control ByPass switch Left and right 180 phase shift switch Gold-plated RCA input and output connectors PWM Power Supply Remote turn-on capability L.E.D. power indicator Designed and Handcrafted in the U.S.A. Specifications Signal-to-Noise Ratio >102 dB Total Harmonic Distortion (1KHz) 0.
INSTALLATION / MOUNTING Placement The PSC-221 has been designed to accomplish two basic objectives: 1) Make the subwoofer sound like it’s in the front of the car (even when the subwoofer is in the back of the car). 2) Raise the perceived soundstage to ear level and solidify the center image (even when your front speakers are closer to your feet).
INSTALLATION / MOUNTING NOTE: Before beginning, disconnect the negative (-) terminal of the battery to prevent an electrical short to ground. Reconnect the negative terminal only after all connections have been made. Mounting To prevent damage to the Phase Shifter while driving, mount it in a secure place. Choosing the appropriate location will depend upon your vehicle and the complexity of your system design. Typical mounting locations would be in the same location as your amplifiers and or crossovers.
WIRING eject BASS LEFT 1 2 5 6 3 4 7 8 Trk 1 TREBLE BALANCE VOLUME TRACK RIGHT FOWARD PPI MAR KET ING DPT REVERSE NOTE: Before beginning, disconnect the negative (-) terminal of the battery prior to working on the positive (+) terminal to prevent a short to ground. This is important, unless you want to spend the rest of your life with a nickname like "Sparky," or "Smokey." Reconnect the negative terminal only after all connections have been made.
WIRING The next step is to connect the Power, Ground, and Remote wires to your PSC-221. The power wire should run from the mounting location through the vehicle to the battery or power distribution block. Avoid sharp corners, creases, and sharp body parts. When passing through any metal wall (i.e. firewall etc.), a grommet must be used to prevent the wire from chaffing and shorting to ground. The ground wire should be of the same gauge as the power wire.
FUNCTIONS Bypass Switch: Gives you the ability to switch from the unadjusted system to the phase corrected system for easy comparision Phase Invert Switch: Gives you the ability to invert the signal. Left and right channels can be seperately inverted. RCA Inputs: Connect the RCA cables from the head unit, preamplifier, or another processor here.
FUNCTIONS RCA Outputs: Connect RCA cables from the PSC-221 to the amplifier Phase Controls: Use these two controls to adjust the amount of phase shift for left and right channels.
MAXIMIZING PERFORMANCE WIRING Adjustments To make the adjustments easier, it is recommended that you create a temporary extension cable for the power, ground, remote and preamp cables that will allow you to extend the PSC-221 to the drivers seat. This will enable you to make adjustments while listening to the system. For a starting point, set both the left and right phase controls to the fully clockwise position, the phase invert switches to the out position and the ByPass button to the out position.
MAXIMIZING PERFORMANCE These illustrations show the effect the phase shift controller has on your perception of the sound stage “image” as you adjust each control. NOTE: It is important to remember that both controls should be moved in unison but in opposite directions after you have achieved your starting image so you don’t lose the up front sub stage you have acquired in your initial adjustments.
TROUBLE SHOOTING NO SOUND Is the LED lit? YES Check Input cables for signal by connecting them straight to the amplifier NO Check Power and Remote turn-on wire for voltage. Make sure Ground wire is secure. ANY SOUND NOW? YES Problem is in the PSC-221.See your local Authorized PrecisionPower Dealer or call 1-800-62POWER. NO Problem is elsewhere in the system. Check head unit and amplifiers. SOUND IN ONE CHANNEL ONLY Reverse left and right RCA outputs.
SYSTEM ONE Power -ø o In-Clip 11 BACK TO CONTENTS
BLOCK DIAGRAM 12 BACK TO CONTENTS
WA R R A N T Y Three-Year Limited U.S.A. Warranty This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. PrecisionPower warrants its products to be free from defects in materials and workmanship under normal use and service for a period of three (3) years from the date of original purchase when the unit is installed by an Authorized Dealer.
