12/21/2023 0 Comments Clipping detector amplifierTest Configuration for Amplifier In Bridged Modeġ. If testing a Mono amplifier use either Speaker Outputs "A" or "B" on amplifier. If testing a Stereo amplifier repeat test on both amplifier channels.ģ. Slowly increase amplifier GAIN until "raspy" sound emits from speaker.Ģ. Test Configuration for Mono & Stereo Amplifiersġ. Reconnect RCAs from source unit to amplifier system. Once you determine the clipping point of the source unit, DO NOT adjust the source unit's volume control until you have completed amplifier configuration(s) below.Ĥ. Slowly increase volume until "raspy" sound emits from speaker.ģ. Insert 1kHz 0dB test tone into CD Player.Ģ. Solder wire leads and reassemble Alligator Clips with protective sleeves.ġ. Prepare other end of harness by sliding Alligator Clip sleeves over wire ends.ĩ. ![]() Disassemble 1/8” plug and Alligator Clips.Ĩ. Test fitting the components prior to soldering will ensure a proper fit.ġ. Like the previous method, the resistors will be housed inside the 1/8” phone plug shell, so careful preparation is needed. The amplifier voltage divider reduces the amplitude of the signal by 1,000:1 and can handle up to 100 Volts AC (that’s a pair of Power T2500-1bdCP amplifiers connected together in bd-SYNC mode). Solder wire leads and reassemble RCA shell. Prepare other end of harness by configuring RCA shell over wire ends.ĩ. Position heat-shrink tubing in place and carefully heat with lighter to fit.Ĩ. Solder resistors in place and trim off excess leads.ħ. Configure heat-shrink tubing and 1/8” phone shell in the order of assembly.Ħ. Trim red and black 20 AWG wires to approximately 20” length.ĥ. Prepare and trim heat-shrink tubing to proper length.Ĥ. Test fit resistors in place (once soldered, they can be trimmed to size).ģ. Test fitting the components prior to soldering will ensure a proper fit.Ģ. ![]() The resistors will be housed inside the 1/8” phone plug shell, so careful preparation is needed. The source unit voltage divider reduces the amplitude of the signal by 10:1 and can handle up to 10 Volts AC (most source units produce between 2V to 4V RMS). HS-6 in 1/8” Heatshrink Tubing in Assorted Colors NTE EW410 1/8W Metal Resistor 100K Ohms 2% NTE EW310 1/8W Metal Resistor 10K Ohms 2% NTE EW110 1/8W Metal Resistor 100 Ohms 2% If you don’t have wire and heatshrink, the chart also references these part numbers. These voltage dividers “drop” the signal down to a safe level so we can properly drive the mini amplified speaker. These are needed because the sensitivity of the mini amplified speaker is so low, it can easily be over-driven. ![]() Most of the parts needed are used to create two Voltage Dividers one to measure the source unit output voltage, and another to measure the amplifier output voltage. The total cost for these components is around $30. The below chart refers to seven items needed from your local Radio Shack™ store. NOTE: This article is a companion to " How to Properly Set Your Gains (Gain Tutorial)" and is based on the design developed by Richard Clark & Dave Navone of AUTOSOUND 2000 in the early 1990's. These instructions include schematics for building the voltage dividers along with diagrams on how to connect and use them with your mini-amplified speaker. You’ll need a mini-amplified speaker and a couple of voltage dividers. However, if you don’t have access to one, you can build a Do-It-Yourself Distortion Meter for around $30 with parts found at your local Radio Shack™. The best way to do this is with an oscilloscope. The output, an open collector, is able to drive systems with automatic volume control.Properly setting amplifier and processor gains can optimize the Sound Quality and/or Sound Pressure Level of your car audio system. The device provides a circuit for the detection of clipping in the output stages. ![]() Thanks to the fully complementary PNP/NPN output configuration the high power performance of the TDA7360 is obtained without bootstrap capacitors.Ī delayed turn-on mute circuit eliminates audible on/off noise, and a novel short circuit protection system prevents spurious intervention with highly inductive loads. The TDA7360 is a new technology class AB Audio Power Amplifier in the Multiwatt® package designed for car radio applications.
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