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Kronos AV
Kronos AV
In the complicated landscape of audio, many companies put stratospheric price tags on great performance. Our mission couldn't be more different. Simply put, we offer the most performance for the money by finding the sweetest spot between price and diminishing returns. We've all been on the consumer side: music lovers, musicians, and audio enthusiasts looking for top-tier sound without breaking the bank.
Everything we do at Parasound is customer-centric because that's how we define value. Most of our customers don't have trust funds and have to work for their money — so we give them their money's worth and then some. Every time another expert compares our product to equipment that costs three times as much, we have succeeded.

Parasound halo A52+ 5.0 Power Amplifier
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  • Sale
  • Regular price £4,399.00
  • Available Worldwide Shipping


  • 180 watts RMS x 5 @ 8 Ω
  • 255 watts RMS x 5 @ 4 Ω
  • 225 watts RMS x 2 @ 8 Ω
  • 350 watts RMS x 2 @ 4 Ω
  • Class A/AB circuitry designed by legendary John Curl
  • Direct coupled - no capacitors or inductors in audio path ensures the cleanest signal
  • Balanced XLR inputs with discrete circuits
  • Full power is rated all the way down to 5Hz for unrestricted low-end bass
  • Custom 1.5 kVA encapsulated toroid power transformer with independent secondary windings for each channel
  • Hand-matched JFETs for input stage
  • Hand-matched MOSFETs for driver stage
  • Beta-matched 15 amp, 60 MHz bipolar output transistors (3 pairs per channel)
  • 100,000 µF power supply filter capacitance
  • DC Servo and relay protection circuits
  • Auto turn on by audio signal or 12V trigger
  • Heavy-duty 24k gold-plated, 5-way speaker terminals
  • 3U chassis with updated cosmetics, rack mountable with HRA3 (sold separately)

Power Output - All 5 Channels Driven 
180 watts x 5, 8 Ω 
255 watts x 5, 4 Ω

Power Output - 2 Channels Driven 
225 watts x 2, 8 Ω 
350 watts x 2, 4 Ω

Power measurements parameters with 120VAC 
0.05% THD, RMS continuous power, 
full audio band (20 Hz - 20 kHz)

Current Capacity: 
45 amperes peak, per channel

Dynamic Headroom: 

Slew Rate 
> 130 volts per microsecond

Frequency Response 
5 Hz - 100 kHz, +0/-3 dB 
20 Hz - 20 kHz, +0/-0.3 dB

Total Harmonic Distortion (THD) 
< 0.05 % at full power 
< 0.03 % at typical listening levels

IM Distortion 
< 0.04 %


Interchannel Crosstalk 
> 78 dB at 1 kHz 
> 63 dB at 20 kHz

Input Impedance 
Unbalanced: 47 kΩ 
Balanced: 94 kΩ, 47 kΩ per leg

Input Sensitivity for 28.28 V Output into 8 Ω 
Unbalanced: 1 V 
Balanced: 1 V per leg 
Total Gain: 29 dB

S/N Ratio 
> 112 dB, input shorted, IHF A-weighted 
> 102 dB, input shorted, unweighted

Damping Factor 
> 1100 at 20 Hz

DC Trigger Requirements 
+9 Vdc to +12 Vdc, 5 mA

Audio Trigger Requirements 
2 mV - 10 mV

XLR Pin Identification 
1 = Ground (Shield) 
2 = Positive 
3 = Negative (Return)

Width: 17-1/4" (437 mm) 
Height without feet: 5-1/4" (133 mm) 
Height with feet: 5-7/8" (149 mm) 
Depth: 20" (508 mm) 
Depth with cables: 21-1/4" (540 mm)

Net Weight 
55 lb. (25 kg)

Shipping Weight 
69 lb. (31.3 kg)

Power Requirement 
Standby: 1 Watt 
Idle: 125 Watts 
Maximum: 1500 Watts

We are still delivering orders as normal. When your order ships you will still receive tracking details. For UK shipments, Our couriers have procedures in place to ensure deliveries are arriving as quickly & safely as possible. Drivers can now sign for your parcels, however will notify you that they have arrived, in order to ensure you receive your parcel. Signing for the parcel has now been stopped temporally for hygiene reasons. Drivers are also working with customer instructions, so you can ask them to leave the parcel in a safe place (doorstep etc...) if you prefer not to come into direct contact with the driver.

There has been no changes to deliveries with Brexit. All deliveries to the UK mainland, Northern Ireland and the Republic of Ireland are operating as normal. No VAT or charges are applicable. 

We have several deomonstation areas in both of our branches. Please give us a call on 03435236169 or email support@kronosav.com to enquire about hearing products at your local branch. 

Please always contact us before to make sure the product(s) are available

Express Deliveries

Express Delivery is FREE on all orders over £50. Express Delivery offers delivery in 24-72 hours from time of purchase. We use premium couriers for this service, mainly DPD & Royal Mail. DPD will offer you a one hour window for delivery to make sure someone is at home, or you can reschedule the delivery if no one is around. 

Standard Deliveries

Here at Kronos AV, we have vast experience with e-commerce sales. Making sure that your parcel arrives undamaged is a huge priority for us. That’s why at Kronos AV, we only use premium couriers for all our orders. All our parcels are shipped with DPD or Royal Mail and are always sent Signed For to make sure it gets to the right person. 

If for any reason your parcel does arrived damaged, please get in touch, and we will be happy to get everything resolved for you. We are always on hand to help!


Delivery is FREE on all orders over £50. In order to offer FREE delivery to UK customers, we use several premium couriers to ensure your delivery arrives safe.

Most large orders (over 2kg) ship using DPD or DHL courier and smaller orders (under 2kg) by Royal Mail signed for services.

The most appropriate courier will be chosen for the items ordered to ensure the quickest possible delivery.

We can offer very generous trade in offers across the majority of our product range. 

Why not ask and see how much you HiFi is worth!

To find out how much your HiFi is worth... Click Here

If you have any question, please feel free to call us on 03435236169 or email support@kronosav.com