Harman-Kardon 223/223XL, 234/234XL Rack MOUNTING, Grounding and Safety Troubleshooting

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2-Way, 3-Way

223/223XL -234/234XL

9

4-Way Crossovers

RACK MOUNTING, GROUNDING AND SAFETY

TROUBLESHOOTING

NO SOUND

ABNORMAL AUDIO OUTPUT

anyway, it will not detract from the true stereo picture of the source mate- rial.

We have provided 4 rack screws and washers for easy mounting in stan- dard audio racks. You should avoid mounting the unit near large power transformers or motors. Route the AC cord away from audio lines and plug it into a power source close by. If the power cord must cross over audio lines, you should take care to have them cross at 90 degree angles.

The input and output connectors are balanced/unbalanced 1/4” TRS- type connectors. The tip of the plug is wired as hot (+), the ring is wired as cold (-), and the sleeve is wired as the ground or shield.

The 234/234XL-223/223XL crossovers have differentially balanced input and output circuits. Balanced wiring is recommended, even with unbal- anced source devices, especially when running long paths. Twin-conduc- tor, shielded cable is more reliable since it does not depend on the shield wire itself to complete the signal connection. Using twin conductor cable, a broken shield may only result in a slight increase in noise or hum due to the lack of shielding. You may also use unbalanced cables to connect to and from the crossover.

If there appears to be no power:

Check that either the stereo or mono LED on the front panel of the 234/234XL-223/223XL is lit.

Check that the power cord is seated properly in the back panel of the crossover and that it is plugged into an active AC power source.

If there appears to be power, but no audible signal:

Confirm that active audio lines are connected to the crossover’s inputs and outputs.

Check that both the input and output gain controls are advanced suffi- ciently.

Check to make sure that you have turned up the amplifiers’ outputs.

Ensure that the proper mode for your setup has been selected via the rear panel mode switches.

Check the LF Sum switch.

Check the x10 switch. This changes the range of the crossover fre- quency from 45 - 960 Hz to 450 Hz - 9.6 kHz.

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Contents 223/223XL -234/234XL Mains Plug Warning 223/223XL -234/234XL 223/223XL -234/234XL Way, 3-Way Way Crossovers Warranty IntroductionOW/M ID Inspection223/223XL -234/234XL 4-Way Crossovers X10 LED 223/223XL -234/234XL5Panel Operations 234XL Rear PanelAudio Connections Electrical Connections Rear PanelFeatures Rack MOUNTING, Grounding and Safety Troubleshooting Weak AND/OR Distorted Audio Dbx 234/234XL-223/223XL SpecificationsDeclaration of Conformity 223/223XL -234/234XL Harman International Company

223/223XL, 234/234XL specifications

The Harman-Kardon 234, 234XL, 223, and 223XL are classic receivers that have made their mark in the audio equipment landscape, offering a blend of functionality, performance, and aesthetic appeal. These models are notable for their ability to deliver rich, high-fidelity sound, making them a sought-after choice for audiophiles and casual listeners alike.

One of the main features of the Harman-Kardon 234 and 234XL is their superior power output. These receivers boast a robust power rating, allowing them to drive a wide range of speakers effectively while maintaining sound clarity and depth. The 223 series shares this powerful performance, making it suitable for smaller rooms or setups where space is a constraint without sacrificing audio quality.

Both models are equipped with multiple input options, enabling users to connect a variety of audio sources such as turntables, CD players, and even modern streaming devices. This versatility is complemented by their user-friendly interface, which includes clearly labeled controls and an intuitive layout, simplifying the user's experience.

The Harman-Kardon 234 and 234XL utilize advanced audio technologies, including the proprietary Harman-Kardon circuitry, designed to minimize distortion and enhance sound fidelity. These receivers also incorporate features such as tone controls for treble and bass adjustment, allowing listeners to customize their audio experience according to personal preferences and room acoustics.

In terms of build quality, both the 234 and 223 receivers exhibit a premium construction with a sleek, classic design that resonates with enthusiasts of vintage audio equipment. Their durable enclosures not only protect internal components but also enhance the aesthetic appeal in any home or studio environment.

Additionally, the Harman-Kardon 234XL features an enhanced heat dissipation system, ensuring optimal performance even during extended listening sessions. This is an important consideration for audiophiles who often engage in long listening periods without compromising on quality.

With a reputation for reliability and performance, the Harman-Kardon 234, 234XL, 223, and 223XL receivers stand out in the landscape of audio equipment. Their combination of powerful amplification, versatile connectivity, and rich sound quality continues to make them relevant for those seeking an exceptional audio experience. Whether used for music playback, home theater systems, or simply enjoying the nuances of sound, these receivers deliver a satisfying performance that resonates with audio lovers around the globe.