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Novafidelity HA500H Silver DAC and Headphone Amplifier


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The HA500H is a premium Hybrid Headphone Amplifier, DAC, Pre-Amplifier and Asynchronous USB DAC for audiophiles. It is equipped with two(2) ECC82 vacuum tubes and solid state OP Amp, which will work as preamp stage for the headphone section, and will work as out stage for the pre-out section, while solid state transistors are built in at power amp stage for headphone section. So, you can select one out of Tube and OP Amp according to character of music, your feelings and mood.

All music has its own character. Some music need to be reproduced clearly and dynamically, others will be better when they are played warmly and smoothly. The HA500H will be the best device that will let you choose different sonic signature in reproducing music according to your feelings and music character.
The HA500H offers impedance selector(High/Low) with which you can choose one of High or Low impedance, which suits better your headphones.

Equipped with two(2) Sabre³² ES9018K2M DAC(one DAC per channel), additional multicore microcontroller for high performance USB Audio DAC, completely isolated circuit design for analogue and digtial section with customised SMPS and Toroidal Transformer and high quality aluminium enclosure crafted precisely by CNC machine with beautiful glass-sanding finish, the HA500H will be Reference Level Hybrid Headphone Amplifier, DAC, Pre-Amplifier and Asynchronous USB DAC for audiophiles


  • Tick Hybrid(Vaccum Tubes & Solid State Electronics) Headphone Amplifier
  • Tick Hybrid Premium Digital to Analog Converter
  • Tick Pre-Amplifier
  • Tick Asynchronous USB DAC

Dual ESS Sabre³² ES9018K2M DACs

Two(2) Sabre³² ES9018K2M DAC chips are built in for right and left channels separately. The world's best performing 32Bit audio DAC solution, the ES9018K2M offers unexampled DNR(Dynamic Range) of up to 127dB and THD+N(Total Harmonic Distortion plus Noise) of -120dB. As the HA500H is circuit-designed with two DAC chips allocated for each channel separately, its Dynamic Range will be far increased and much better sound quality can be guaranteed

Two (2) ECC82 Vacuum Tubes

Based on Novafidelity's exclusive technologies to match up solid state electronics with vacuum tube, the HA500H was developed to let audiophiles and music lovers experience mellow and enthralling sound adding warmth and depth to the music. A pair of ECC82 Vacuum Tubes are installed for preamp stage of headphone section and for out stage of pre-out section. It delivers a breathtaking sound enough to attract audiophiles' attention

Isolated Power Source Circuit Design and Toroidal Power Transformer

To minimise idle noises and electrical interference, power source for digital and analogue section is isolate designed. Instead of cost-effective laminated steel core transformers, the HA500H applied the customised high quality toroidal power transformer which ensures excelled power efficiency and minimises exterior magnetic fields.

Perfect Asynchronous USB DAC and Hi-Res Audio

For audiophiles and music lovers who use PC, X50D or X50Pro as source device, the HA500H will be a perfect Hybrid Asynchronous USB DAC, which will surely deliver a wonderful sound by using the high precision clock inside to drive the audio signal precisely and dual ESS Sabre³² Reference DAC chips inside to convert digital signal to analogue. The HA500H USB DAC Input supports MQA(Master Quality Authenticated), Native DSD64/128/256 and PCM signal up to 32Bit/384Khz

Wireless Playback via aptX Bluetooth

As HA500H offers Bluetooth receiver which allows you to play music files in your mobile devices wirelessly via the HA500H. It supports A2DP and AVRCP profiles and SBC (Subband codec), aptX, AAC and MP3

12V Trigger Input and Output

Ideally, it is best way to power on in order of a source device, DAC, Pre-amplifier and Power Amplifier when power on hifi audio systems, Of course, the reverse order is recommended when turn off the power. The HA500H offers 12V trigger output and input. When it is used as a pre-amplifier, its trigger output can power on the connected power amplifier automatically when the HA500H is powered on. If you connect its trigger input to the trigger output of the connected source device, the HA500H can be turned on automatically when the source device is powered on.

Selectable Headphone Out Impedance

The HA500H offers the feature to select Headphone Output Impedance(High/Low), so that you could set to proper impedance for optimal sound quality and the best matching with your headphones' sensitivity. You may select one of High and Low. The HA500H's volume can be precisely and seamlessly controllable via the bundled cute remote control. The headphone amplifier also provides separate adjustments for the impedance and sensitivity of the connected headphones, as well as different levels of the audio sources. This features allow headphones between 16 ohms and 600 ohms to be worked perfectly with the HA500H with wonderful sound quality.

High Connectivity

The HA500H offers very high connectivity. As it provides Analog Inputs(Balanced and Unbalanced), Digital Inputs (Coaxial, Toslink, AES/EBU), I²S Input(HDMI) and USB Audio Input, you can connect various source devices to the HA500H almost without limitation. Especially, the HA500H can be connected to the I²S HDMI Output of the X50Pro and X50D perfectly to play Native DSD, MQA and up to 384Khz PCM with great sound quality. For outputs, it offers Balanced/Unbalanced Line Outputs and Balanced/Unbalanced Headphone Outputs.

Remote Control

A cute remote control is provided to control the HA500H remotely. It will allow you to do volume control, mute, setting, input change, source device selection, etc

Convenient Operation With 5 Inch Screen

5inch TFT LCD screen on the front will help to operate the HA500H easily and to get information how it is working. VU meters provide precise metering with a classic feel that matches with the warm, analog tone from the tubes

Outlooking Design & Build Quality

The HA500H is very rigidly and clearly structured, and it has simple and noble exterior design with top quality beautiful glass-sanding aluminium, which is crafted minutely by CNC machine. The five(5) inch screen is located on the centre of front with two smart ventilation sections for the vacuum tubes located on the top surface. This is another eye-catcher for the HA500H. For the rear and bottom side, 2mm high quality steel is used to give stability and rigidity along with additional resistance from external vibrations. The HA500H is immensely solid desktop headphone amplifier and DAC with total weight of 6.9Kg

Breathtaking Sound Quality & Hi-RES Audio

Experience dramatic, unbelievably natural and brilliant sound created by a combination of vacuum tubes and solid state electronics technologies. The HA500H will deliver the warm and mellow sound created by two(2) ECC82 vacuum tubes, and also transparent and dynamic sound by a pair of high quality OP Amp. Feel rich, simply magnificent and delightful sound with an extraordinary amount of details regardless of headphones of any impedance. The HA500H can support DSD64/128/256, MQA and up to 384KHz PCM Hi-Res Audio to deliver magnificent sound quality that is as close as possible to the master recording level at studio.

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.


Input Specification

Analog Unbalanced (RCA) - Input impedance: 47K ohm, Default 2Vrms (controllable 1 ~ 4Vrms
Balanced (XLR) - Input impedance: 47K ohm, Default 4Vrms (controllable 2 ~ 8Vrms)
Digital COAXIAL x 1 - Sample Rate: up to 192Khz
Toslink x 1 - Sample Rate: up to 192Khz
AES/EBU x 1 - Sample Rate: up to 192Khz
I²S HDMI x 1 - Native DSD256, DoP(Max DSD128), PCM up to 384Khz, MQA
Bluetooth Input Bluetooth 4.2 - Profile: AVRCP/A2DP, Format: SBC, aptX, AAC, MP3
USB DAC Audio USB B Type x 1 - USB Audio Class 2.0, Support up to PCM 32Bit/384Khz, Native DSD256, MQA384Khz

DAC Specification

DAC Performance - Sabre³² ES9018K2M Dual DAC (One per each channel) Sabre³² ES9018K2M Dual DAC Balanced Line Out( XLR x 2) Dynamic Range: 130dB(Max 4Vrms/8Vrms, Stereo) THD+N:0.0004%
Unbalanced Line Out (RCA x 2)) Dynamic Range: 130dB (Max 2Vrms/4Vrms, Stereo) THD+N:0.0004%

Analog Balanced Line Out (XLR) Specification

Rated Output Level(High/Low) High - 8Vrms / Low - 4Vrms
Frequency Response 10Hz ~ 80KHz: +/- 0.1dB
20Hz ~ 20KHz: +/- 0.01dB
THD+N @ 1KHz(20Hz ~ 20KHz) < -105dB (< 0.00056%)
Channel Separation -110dB
Signal-to-Noise Ratio < -113dB

Analog Unbalanced Line Out (RCA) Specification

Rated Output Level(High/Low) High - 4Vrms / Low - 2Vrms
Frequency Response 10Hz ~ 80KHz: +/- 0.1dB
20Hz ~ 20KHz: +/- 0.01dB
THD+N @ 1KHz(20Hz ~ 20KHz) < -105dB (< 0.00056%)
Channel Separation -110dB
Signal-to-Noise Ratio < -112dB

Headphone Balanced Output Specification

Rated Output Power 600 ohm, 485mW per CH, 120mW per CH
16 ohm, n/a, n/a
Frequency Response 10Hz ~ 80KHz ±0.5dB
10Hz ~ 80KHz ±0.15dB
THD+N@1KHz(20Hz ~ 20KHz) 0.001% (-100dB)
0.0012% (-99dB)
Signal-to-Noise Ratio < -111dB
< -113dB

Headphone Unbalanced Output Specification

Rated Output Power 125mW per CH
31mW per CH
Frequency Response 10Hz ~ 80KHz ±0.5dB
10Hz ~ 80KHz ±0.5dB
THD+N@1KHz(20Hz ~ 20KHz) 0.009% (-81dB)
Signal-to-Noise Ratio < -106dB
< -110dB

General Specification

Model name HA500H
Display 5.0" TFT LCD(800 x 480 pixels)
Interface Key & Jog(Volume/Scroll), IR Remote Control
Trigger Input Max. 12V
Output Max 200mA, 12Vl
Headphone Out Pin Order Balanced(XLR-4pin) - 1: L+, 2: L-, 3: R+, 4: R-, Shell: Ground
Unbalanced(6.35mm) - Tip: L, Ring: R, Sleeve: Ground
Recommended Headphone Impedance 16 ohm ~ 600 ohm
Power Supply AC 110-120V~ / 220-240V~, 50/60Hz Auto-sensing
Power Consumption 50W(Operation)
Material Front, Body, Top, Knob -High quality and beautiful glass-sanding aluminium crafted by CNC
Rear, bottom - High quality steel
Dimensions H x W x D Without feet - 85 x 270 x 333mm
With feet - 90 x 270 x 333mm
Weight 6.9 Kg

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.

Novafidelity HA500H Black DAC and Headphone Amplifier

Novafidelity HA500H Black DAC and Headphone Amplifier


Part Exchange Available

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We can take back any type of product we sell, from cables, to projectors, speakers, amplifiers, AV receivers, subwoofers and more.

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Pay monthly plans up to 60 months, on loan values between £500 and £25000. Minimum order value of £556.

0% IF6 6 Months
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0% IF24 24 Months
15.9% IB36 36 Months
15.9% IB48 48 Months
15.9% IB60 60 Months

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Please note: the above quotation is an indicative cost and actual monthly payments may vary by +/- 2p per month.

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