Parasound HALO A23+ Power Amp

Parasound HALO A23+ Power Amplifier

The Parasound HALO A23+ Power Amplifier delivers clean, detailed power in a compact chassis designed by legendary engineer John Curl.

The Parasound HALO A23+ is a high-current, two-channel Class A/AB power amplifier offering 160 watts per channel into 8 ohms, 240 watts per channel into 4 ohms, and up to 500 watts bridged mono into 8 ohms. It provides the same sonic excellence as its larger HALO A21+ sibling but in a more compact format for smaller systems and modern living spaces.

Its dual-mono layout with separate power supplies for each channel ensures exceptional imaging and channel separation. The Parasound HALO A23+ features upgraded circuitry, larger power transformer, increased filter capacitance, and refined components for improved dynamics and low noise.

Balanced XLR and unbalanced RCA inputs, level controls, loop outputs, and a 12 V trigger make the Parasound HALO A23+ ideal for both high-end stereo systems and integrated home theater setups. It runs the first few watts in pure Class A for warmth and detail before transitioning seamlessly to high-current Class AB operation for control and headroom.

With smooth, natural tonality and effortless drive, the Parasound HALO A23+ Power Amplifier delivers musical transparency and authority well beyond its size and price.

In Stock. For assistance or product questions, call 443-402-5055 or text 443-402-5064 to reach our team. All Elite Audio is an authorized Maryland dealer and operates a full home audio showroom.

Key Specifications
Power Output (Stereo): 160 W × 2 @ 8 ohms
Power Output (Stereo): 240 W × 2 @ 4 ohms
Power Output (Bridged Mono): 500 W × 1 @ 8 ohms
Class A Operation: First few watts per channel
Frequency Response: 5 Hz – 100 kHz (+0/-3 dB)
THD: < 0.06% at full rated power
Input Impedance: Balanced 66 kΩ / Unbalanced 33 kΩ
Signal-to-Noise Ratio: > 112 dB
Gain: 29 dB
Dimensions (W × H × D): 17-1/4" × 4-1/8" × 15"
Weight: 27 lbs
Finish: Black or Silver

Top 20 Questions About Parasound HALO A23+ Power Amplifier

What is the output power of the Parasound HALO A23+ Power Amplifier?
It produces 160 watts per channel into 8 ohms, 240 watts per channel into 4 ohms, and 500 watts bridged mono into 8 ohms.

Does the Parasound HALO A23+ run in Class A?
Yes. The first few watts operate in Class A before switching to powerful Class AB operation for dynamic control.

Is the Parasound HALO A23+ suitable for demanding speakers?
Yes. It easily drives 4-ohm speakers and maintains stability under challenging loads.

Who designed the Parasound HALO A23+ Power Amplifier?
It was designed by renowned audio engineer John Curl, known for his legendary amplifier designs.

What makes the Parasound HALO A23+ different from the older A23?
The A23+ features a larger transformer, greater filter capacitance, improved signal path, upgraded components, and more power.

Can the Parasound HALO A23+ be bridged?
Yes. In bridged mono mode it produces 500 watts into 8 ohms, ideal for powering a single high-demand speaker or subwoofer.

What type of inputs does the Parasound HALO A23+ offer?
It includes both balanced XLR and unbalanced RCA inputs, with individual channel gain controls.

What are the dimensions of the Parasound HALO A23+ Power Amplifier?
It measures 17-1/4 inches wide, 4-1/8 inches high, and 15 inches deep, making it compact for its power rating.

How heavy is the Parasound HALO A23+ Power Amplifier?
It weighs approximately 27 pounds.

What is the damping factor of the Parasound HALO A23+?
The amplifier offers high damping for precise, controlled bass performance.

Can the Parasound HALO A23+ Power Amplifier be used for home theater?
Yes. Its loop outputs and trigger control make it perfect for multi-channel or theater front-channel systems.

What type of power supply does the Parasound HALO A23+ use?
A high-current toroidal transformer with increased filter capacitance ensures dynamic headroom and low distortion.

What are the available finishes for the Parasound HALO A23+ Power Amplifier?
It comes in black or silver with premium end caps.

Does the Parasound HALO A23+ feature protection circuitry?
Yes. It includes DC offset, short circuit, and thermal protection for reliability.

Can I bi-amp speakers with the Parasound HALO A23+?
Yes. The amplifier’s design allows flexible bi-amp configurations.

Is the Parasound HALO A23+ Power Amplifier quiet?
Yes. It has a signal-to-noise ratio greater than 112 dB for extremely low noise operation.

What preamp pairs best with the Parasound HALO A23+?
The Parasound HALO P6 is a popular match, offering balanced outputs and tone control compatibility.

How does the Parasound HALO A23+ sound compared to larger HALO models?
It delivers the same sonic signature—smooth, transparent, and musical—at slightly lower output power.

Is the Parasound HALO A23+ easy to integrate into an existing system?
Yes. Balanced and unbalanced inputs, triggers, and loop outputs make setup simple in both stereo and theater systems.

How can I get expert advice before buying the Parasound HALO A23+?
For assistance or product questions, call 443-402-5055 or text 443-402-5064 to reach our team at All Elite Audio, your authorized Maryland dealer with a full home audio showroom.