Name: Topping A70 Pro | Desktop Headphone Amp
Brand: Topping
SKU: TOP-A70PRO-BLK
Price: 499.0 USD
Availability: BackOrder

Topping A70 Pro | Compact Desktop Headphone Amp-Bloom Audio

$499.00

Capture the Pinnacle of Music for Under $500 with Topping A70 Pro

Fully balanced headphone amplifier with 17 Watts of power
Topping designed T'ang-ku-la Module delivers incredible dynamic range with a low noise floor
Aurora UI enhances the experience with a fluid interface design

Topping A70 Pro front silver over mountain landscape

T'ang-ku-la Module

T'ang-ku-la means a mountain that an eagle cannot fly over, the source of the Yangtze River. It symbolizes our spirit of climbing the peak and the ultimate performance of T'ang-ku-la module.

The T'ang-ku-la Module uses a new three-stage feedback circuit. Further reducing noise and high frequency distortion, making the dynamic range rise to an unmatched 147dB new realm. The new technology greatly reduces heat generation, thus greatly improving reliability, extending electronic component life, and reducing thermal noise.

Re-optimized New Circuit Architecture

Newly developed ultra-low noise input stage further improved the noise performance of balanced input and increased the input impedance to 20kQ thus having better compatibility with incoming devices. The gain architecture has also been redesigned to further reduce noise and distortion at high gain states than the previous architecture.

Relay Volume Control with Independent Volume Memory

A70 Pro uses relays and resistor networks to form an R2R volume control module, which provide precise volume control, long service life, and are fully accurate and balanced across channels, even at low volume.

This system combines with 8 volume presets that allow you to switch

Make Ground Loop Noise Disappear

When multiple devices are used in combination, ground loop noise may be encountered. A70 Pro adds a GND/LIFT switch, when ground loop noise is encountered switch to LIFT and the noise will disappear.

Aurora UI Experience

The full color touch screen and touch buttons enhance the user experience with A70 Pro. You can display playback information, FFT, and VU meters. Customizations are available with a simple press of the knob.

Specifications

Topping A70 Pro specifications listing

In the Box

A70 Pro Amplifier
AC Cable
6.3mm to 3.5mm adapter
A70 Pro User Manual
Topping 1 year Warranty Card

Topping A70 PRO

This is a massive step up from the Topping L 70 headphone amplifier which will be my main comparison. At first I thought I pretty much threw away my money because they sound identical, and they pretty much do when first powered on, but after a week or so my opinion changed.

The power supply quality (suppression of various AC/ground noise) and heat dissipation capabilities of the A70 pro are vastly superior. Even the small amount of switching noise from a <$100 pure sine wave inverter feeding a Furman PST-8 (power conditioner) adds artefacts (after some time - not the first 15 minutes) and adversely impacts soundstage presentation (severely) on the L70. Plugging it into inadequate "dirty" AC main - forget it. Not to mention the L70 gets hot fast, especially with GRND switch up.

A70 takes quite some time to get hot, and basically won't unless you leave the GRND switch up for hours on end without proper ventilation. With semi "dirty" AC and inadequate noisy ground at that - just a Furman PST-8.

Somehow, the A70 pro also is the best amp I've tried for very low resistance IEMs like ThieAudio Origin (9 ohms) although you can surely do better (and cheaper) for that use case.

Slaps the Aune S9c ($699) DAC+AMP combo up and down the road even when attached (just for a test) to the $99 (open box) Topping E30 II DAC because of the massively improved dynamics. Via $15 RCA cables at that.

I wanted an amp that can do everything - that is what I got. Nothing has made me even leave low gain yet.

If you have clean AC and quality grounding the value proposition plummets unless you really need the power or features. I'm not rewiring a rental home - perfect for me.

Big thanks to Marty & Matthew for the world class industry defining customer service. Seriously. Personal sentiment excluded you should still buy here so you actually have a warranty as they will enforce it - they price match with apos.audio too FYI :)

Topping A70 Pro | Desktop Headphone Amp