Parasound A 23 manual Understanding the Indicators on the a

Page 13

UNDERSTANDING THE INDICATORS ON THE A 23

10

 

 

AAC Present Indication

When the A 23 is plugged into a live AC outlet, a soft blue halo glows behind its On-Offbutton and its red “P” Badge glows faintly. These indicate that the unit is plugged into a live AC outlet, even when it is turned off.

BOn and Off Indications for Both Manual and Automatic Modes

When the A 23 is first turned on, the soft blue glow behind the On-Offbutton turns red for about five seconds and then becomes a brighter blue.

CChannel Status Indicators

These are two small round indicators in the center of the recess in the front panel. The indicator on the left displays the status of the left channel and the indicator on the right displays the status of the right channel.

DNo Illumination:

When the A 23 is turned off, these indicators are off.

EBlue Illumination of Channel Status Indicator:

When both channels are operating normally, these both glow blue.

FNo Illumination of Channel Status Indicators:

A blue channel indicator will stop glowing if there is a fault in its corresponding amplifier channel. If this occurs for either channel, the halo glow behind the On-Off button will also change from blue to red.

GHigh-Temp Indicator

This indicator is near the right side of the panel recess. It will glow red if either channel overheats.

HLevel Controls

We recommend that you rotate the Left and Right Level controls to their maximum clockwise positions, marked THX Reference. Refer to Level Controls in Technically Speaking for more information about setting level controls.

IGround Switch

The Ground switch can assist in reducing audible hum caused by ground loops in your system. Leave this switch in its Normal (down) position unless you hear hum through your speakers (you’ll only be able to hear this hum after your entire system is installed and operating). You can try the Lift (up) position to eliminate it. Please refer to the Technically Speaking section for detailed technical information about the causes of ground loops and what you can do about them.

A

B

C

 

G

 

 

 

 

D

E

F

H

I

 

H

50

 

 

 

 

 

 

3

C A U T I O N

 

 

 

Image 13
Contents Amplifier Congratulations and Thank You for Choosing Parasound Thank YOUParasound Staff Unpacking Your a Keeping Records for Future ReferenceAmplifier Table of ContentsRack Mounting Your Parasound a Placement Guidelines for Your aLeft and Right Balanced Input Jacks Before ConnectingWhat You’ll Need To ConnectLeft and Right Unbalanced Inputs Loop Out Connector Speaker Wire Length and Gauge thickness Connecting Speakers to the aSpeaker Terminals Correct Speaker Polarity is ImportantIMPORTANT! Before Trying Bridged Mono Configuring the a 23 for Bridged Mono OperationTurn Off Delay in the Audio Mode Connecting an Active Audio Source for Automatic On-OffManual and Automatic Turn ON-OFF Options Manual On-Off from the Front PanelAutomatic ON-OFF Connecting the a 23 to Trigger Another Component Understanding the Indicators on the a AC Power Connections Connecting the AC Power CordAC Voltage Selection Switch Maintaining Your a Trouble Probable Cause Remedy Troubleshooting GuideIf All Else Fails -Call Us for Help Servicing Your aBare Speaker Wire Ends Audio Trigger Sensitivity AdjustmentTechnically Speaking Balanced and Unbalanced LinesLoop Out Jacks Choosing Brands of Interconnect Cables and Speaker WireLevel Controls Parasound a 23 Design Overview Class A-A/B Operation Output StageTotal Protection Relay ProtectionParasound a 23 Specifications Parasound Products, Inc Battery Street, San Francisco, CA

A 23 specifications

The Parasound A 23 is a highly acclaimed power amplifier recognized for its performance and versatility in high-fidelity audio systems. Designed for both audiophiles and casual listeners, it offers robust sound quality, making it a popular choice in the world of home theater and music reproduction.

One of the standout features of the Parasound A 23 is its power output. The amplifier is rated at 125 watts per channel into 8 ohms, and it can deliver 200 watts per channel into 4 ohms. This substantial power allows it to drive a wide range of speakers effectively, from more sensitive models to those requiring additional power. The A 23’s high current capability ensures that musical dynamics are accurately reproduced, resulting in a responsive and engaging listening experience.

Built using a Class AB topology, the A 23 balances efficiency and sound quality. Class AB amplifiers like this one maintain low distortion levels while delivering the warmth associated with tube amplifiers. The careful engineering provides a natural sound, ensuring that vocals and acoustic instruments are rendered faithfully. The dual-mono design minimizes crosstalk and maximizes separation between channels, enhancing stereo imaging.

Another characteristic of the Parasound A 23 is its versatile connectivity. It features both balanced XLR and unbalanced RCA inputs, allowing you to integrate it seamlessly into various audio setups. The design includes a high-quality power supply with a large toroidal transformer, which contributes to the amp's stability and reliability. The robust build quality is evident in its all-steel chassis, ensuring durability and performance in any environment.

The A 23 also incorporates several advanced technologies, such as a soft-start circuit that prolongs component life and increases reliability. The amplifier is equipped with reliable thermal protection circuitry, preventing overheating and ensuring long-term operation without issues.

In conclusion, the Parasound A 23 is a powerful and versatile amplifier that delivers outstanding audio performance. Its blend of high power output, Class AB design, dual-mono architecture, and solid construction make it an ideal choice for those looking to elevate their audio experience, whether in a home theater system or a dedicated listening room. With its combination of features and durability, the A 23 stands out among amplifiers in its class.