SKU: 80499832841

TOPPING A50S Balanced Headphone Amplifier AMP Preamplifier

Sale price$128.69 Regular price$142.99
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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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Description

TOPPING A50S Balanced Headphone Amplifier AMP PreamplifierMeet The New A50s TOPPING designed the aluminum chassis of the new A50s for maximum durability and heat dissipation. The casing CNC machined to precision from a solid block of aluminum and accommodates a thermal conductive column. The thermal column transfers the heat generated from the op amps and power supply to the surrounding aluminum case, dissipating the heat. Optimized design allows the A50s to maintain its tiny footprint, preserving a good

 

Meet The New A50s

TOPPING designed the aluminum chassis of the new A50s for maximum durability and heat dissipation. The casing CNC-machined to precision from a solid block of aluminum and accommodates a thermal conductive column. The thermal column transfers the heat generated from the op-amps and power supply to the surrounding aluminum case, dissipating the heat.

Optimized design allows the A50s to maintain its tiny footprint, preserving a good appearance with no seams or visible screws. Aluminum is an excellent material because of its high thermal conductivity and structural strength.

 

Ultra-High Performance Balanced NFCA Modules

NFCA modules result from TOPPING’s intensive research and development into headphone amplification technology, and the flagship A90 was the first amplifier from TOPPING that incorporated these modules. NFCA modules ensure low noise levels and distortion under all conditions and when used with all headphones.

The A50s leverages TOPPING’s revolutionary NFCA (Nested Feed Composite Amplifier) modules in a balanced configuration. Besides the balanced NFCA modules, A50s also uses ultra high gain feedback (UHGF) technology.

A revolutionary voltage-current hybrid architecture provides exceptionally low noise and distortion performance. The result is a drastic improvement in sound quality, with no hint of noise or distortion.

The high current output makes the A50s suitable for driving low impedance, while the high voltage output benefits high impedance headphones. A virtually nonexistent ultra-low noise floor of 0.3uV makes the A50s it a superb choice for sensitive IEMs.

High power output, exceptional dynamic range, and an unprecedented ultra-low noise floor allows the TOPPING A50s to deliver a performance unmatched by any other headphone amplifier regardless of its topology.

6.35mm SE & Balanced 4.4mm Outputs

Despite having only single-ended RCA inputs, the TOPPING A50s headphone amplifier’s internal circuitry is internally balanced. The front panel features a 6.35-millimeter single-ended output and a 4.4 -millimeter balanced output.

The balanced 4.4mm output of the A50s provides the benefits of balanced headphone output, such as higher power output, high voltage swing, and avoiding any mains noise. Thus, A50s can separately power single-ended headphones through the 6.35mm SE output and balanced headphones via the 4.4mm balanced output.

High-Performance Amplifier & Preamplifier

Besides being a headphone amplifier, the A50s is also a state-of-the-art preamplifier. A pair of single-ended RCA output on the rear panel provides a preamp output connection to a power amplifier or powered speakers, delivering superb performance.

The volume knob on the front panel adjusts the volume of the RCA preamp outputs. The low output impedance of 20 ohms ensures smooth integration with many devices.

Automatic Switching between Amp & Preamp

Unplugging the connected headphones will activate the analog preamp mode of the A50s. Preamp mode switches off the headphone amplifier section of the A50s. Plugging the headphones back in starts the headphone amplifier section deactivates the preamp section, allowing the A50s to allow the A50s to function as a pure headphone amplifier.

Dual Selectable Gain Settings

The gain levels of the A50s allow for easy switching between 0dB/6dB (single-ended) and 6dB/12dB (balanced) using the power/gain switch button on the front panel. The dual gain settings and headphone outputs give users the ability to adjust the headphone amplifier according to their listening preferences.

The noise level for single-ended output is 0.3uVrms and 0.4uVrms in low and high gain, respectively. At all gain settings, the noise floor and dynamic range of the A50s are miles ahead of the competition on all outputs and gain settings.

Power Output @ 2Vrms & Maximum Power Output

A50s will deliver up to 3.5W of power into 32 ohms & 760mW in 300 ohm loads on its 4.4mm balanced output with both channels driven. When using a source that provides a signal level of 2Vrms, the A50s will output 1950mW into 32 ohms and 208mW into 300 ohms.

Near-Zero-Ohm output impedance

The near 0-Ohm output impedance of the A50s produces a high damping factor that minimizes frequency-based reactive-load impedance shifts and ensures a predictable frequency response. The high damping factor ensures adequate control over the connected headphone's drivers, allowing for powerful bass and accurate sound reproduction.

What‘s in the box:

  • 1 × A50s Headphone amplifier and preamp
  • 1 × 15V DC adapter
  • 1 × 6.35mm to 3.5mm adapter
  • 1 × User manual
  • 1 × Warranty card

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 80499832841

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My new favorite summer sandal!
Size: 8.5, Color: Bay Fog
I am loving these shoes so far this summer! The color is so cute, perfect for a light summer palette. It's the perfect light purple that doesn't make me look pale or washed out. For reference, I have fair to light neutral skin tone. They are SO comfortable - a little too comfortable for a shoe, it's more comfortable than my ugg slippers! They do take a second to put on as you have to either force your ankle in without unstrapping the back - don't judge me - or undo them. Thankfully they have a strap to help get them on easily. I love these shoes. I am a medium width, but I think these have some wiggle room since both the straps are velcro and adjustable somewhat. They are easy to walk in, hold onto the foot, have been more balanced than some others I have had in this platform style, and are very cushioned to walk in. Slight arch support to me but I have somewhat high arches so if you are more flat footed or standard arch these will give you even better support. Really impressed with these. They are more casual but work with many different outfits from sundresses to jeans. For me, these were a great buy and I will be wearing them all summer.
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Sonia
Houston, US
★★★★★ 5
Comfort and style
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Like walking on clouds with support. Thank you Ugg’s. Perfect size 8.5 Will buy again.
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Jennifer
Phoenix, US
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Style, Comfort
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If I could give a Ten Star review, I would. Hands down the most comfortable pair of sandals I have ever owned. I wore them 16 days straight while touring Italy. Comfortable and goes with all of your outfits. They pack well in a suitcase too. Light weight.
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Lexington, US
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Wonderful
Super comfy and easy on and off, yet stylish imo! I could walk miles in these as a 56 yo and have worn them for three years! I hope they never stop making them. The only tweek I would suggest is to cover the footbed with leather or suede not cloth so they would last longer!
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