Parasound A 23 manual Parasound a 23 Specifications

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19PARASOUND A 23 SPECIFICATIONS

Continuous Power Output - Stereo

125 watts RMS x 2, 20 Hz-20 kHz, 8 Ω, both channels driven

200 watts RMS x 2, 20 Hz-20 kHz, 4 Ω, both channels driven

Continuous Power Output - Mono

400 watts RMS, 20 Hz-20 kHz, 8 Ω

Current Capacity

45 amperes peak per channel

Slew Rate

> 130 volts per microsecond

Frequency Response

5 Hz-100 kHz, +0/-3 dB at 1 watt

Total Harmonic Distortion

<0.06 % at full power

<0.03 % at typical listening levels

IM Distortion

< 0.04 %

TIM

Unmeasureable

Dynamic Headroom

> 1.5 dB

Interchannel Crosstalk

>80 dB at 1 kHz

>63 dB at 20 kHz

Input Impedance

33 k Ω

Input Sensitivity

Balanced-1 V for 28.28 V output into 8 Ω Unbalanced-1 V per leg for 28.28 V output into 8 Ω

Features and specifications subject to

Loop Output Level

Same as input level

S/N Ratio

> 112 dB, input shorted, IHF A-weighted

Damping Factor

> 800 at 20 Hz

DC Trigger Requirements

+9 Vdc to +12 Vdc, 2 mA

Audio Trigger Requirements

50 mV AC - 200 mV AC

DC Trigger Output Capacity Requirements

+12 Vdc, 150 mA

Dimensions

Width: 17-1/2” (437 mm)

Panel Height: 3-1/2” (88 mm)

Total Height with feet: 4-1/8” (105 mm)

Total Height with rack adapter attached: 3-5/8”

Depth: 13-3/4” (350 mm)

Power Requirement

Standby: 25 Watts

Full Power into 4 Ω: 700 Watts

Net Weight

28 lb.(12.7 kg)

Shipping Weight

35 lb.(15.9 kg)

change without notice.

© Parasound Products, Inc. 2002. V 1.0

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Contents Amplifier Parasound Staff Unpacking Your a Thank YOUCongratulations and Thank You for Choosing Parasound Keeping Records for Future ReferenceTable of Contents AmplifierPlacement Guidelines for Your a Rack Mounting Your Parasound aWhat You’ll Need Before ConnectingLeft and Right Balanced Input Jacks To ConnectLeft and Right Unbalanced Inputs Loop Out Connector Speaker Terminals Connecting Speakers to the aSpeaker Wire Length and Gauge thickness Correct Speaker Polarity is ImportantConfiguring the a 23 for Bridged Mono Operation IMPORTANT! Before Trying Bridged MonoManual and Automatic Turn ON-OFF Options Connecting an Active Audio Source for Automatic On-OffTurn Off Delay in the Audio Mode 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 Troubleshooting Guide Trouble Probable Cause RemedyServicing Your a If All Else Fails -Call Us for HelpTechnically Speaking Audio Trigger Sensitivity AdjustmentBare Speaker Wire Ends Balanced and Unbalanced LinesLoop Out Jacks Choosing Brands of Interconnect Cables and Speaker WireLevel Controls Parasound a 23 Design Overview Total Protection Output StageClass A-A/B Operation 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.
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