Description
The Hypex Nilai500 Mono Kit brings cutting‑edge Nilai® Class‑D amplifier technology into the hands of DIY audio enthusiasts. Designed around the state‑of‑the‑art Nilai500DIY module and paired with the robust PS500DIY regulated power supply, this kit delivers audiophile‑grade performance with ultra‑low distortion, superb linearity, and exceptional efficiency.
With an output of 500 W at 2 Ω, 525 W at 4 Ω, and 260 W at 8 Ω, the Nilai500 Mono Kit has the power to drive demanding loudspeakers effortlessly, while maintaining pristine clarity and dynamic control. Its advanced design minimizes heat dissipation and noise, ensuring long‑term reliability and uncompromised sound quality.
Assembly is straightforward—no soldering required. The kit includes all components, a complete cable harness, mounting hardware, and clear instructions, making it accessible for both beginners and experienced builders. A step‑by‑step video guide is also available, so you can achieve professional‑level results with ease.
Thoughtful features such as a 12 V trigger input, front‑panel on/off switch, and adjustable LED brightness control make integration seamless. Optional faceplates allow you to personalize the look of your build, while pairing with the Hypex PreAmplifier Kit creates a complete high‑performance audio system.
Whether you’re building a dual‑mono powerhouse or expanding a multi‑channel setup, the Hypex Nilai500 Mono Kit offers the joy of DIY with the performance of a reference‑grade amplifier. Experience the next generation of Hypex Nilai® amplification—where efficiency, reliability, and uncompromised sound meet.
Warranty: 5 years / 20,000 hours
Key Features
- Ultra Low Distortion
- Very Low Idle Power
- Very Low Noise
- Very Low Output Impedance
- Incorporates Audiophile Components
Specifications:
Inputs
- 1 x Balanced XLR
- 1 x Trigger 12V
Outputs
- 1 x Gold Plated Binding Post Set (Banana plug, Spade plug or Bare wire)
This Hypex Nilai500 Mono kit contains:
- Complete DIYclassD Nilai500DIY mono case “matte black”,
- Complete internal cable harness,
- PS500DIY power supply,
- Nilai500DIY amplifier module,
- All needed mounting materials,
- Easy to follow assembly instruction,
- 1.5mm Allen key,
- 2.5mm Allen key,
- TX-10 Torx key,
- TX-20 Torx key
In addition, you will need the following tools to complete the assembly:
- Wire cutter (or combination pliers)
- 5.5 mm hex nut driver (or combination pliers)
- 7 mm hex nut driver (or combination pliers)
- 3.5 mm flat type screwdriver
Datasheets and manuals:
Up to date documents can be found on the manufacturer page
Technical Data
| Technology | Nilai |
| Power (2Ω) | 500W @ 2Ω, 1 kHz, THD < 1% |
| Power (4Ω) | 525W @ 4Ω, 1 kHz, THD < 1% |
| Power (8Ω) | 260W @ 8Ω, 1 kHz, THD < 1% |
| Channels | 1 |
| Weight | 3.45 kg |
| Dimensions mm | 205*300*80 mm |
| Mains voltage input | 100 – 240Vac |
| Automatic input voltage selection | universal mains |
Alternative un-branded faceplates are available in pairs for this kit
David Herd –
The kit is very simple, anyone with some common sense can put these kits together! It is a few months now since I put mine together and I have to say I’m very happy with the mono-blocks. Initially I had a slight hum problem because I was running the pre-amp section of my integrated valve amp, using unbalanced adaptor cables. The Nilai’s still sounded excellent and didn’t take too long to “run in”. I then managed to get a valve pre-amp with balanced outputs; hum problem solved but the pre-amp now had to be run in. The combination now sounds pretty stunning I think. Plenty of power on tap, black backgrounds and sweet (But not sugary!)highs, clean and well defined low end. Midrange is detailed, acurate (Timbre) and agile. Brass sounds like brass and strings – cello, violin and guitar – are pure and realistic (If the recording is up to it!). These kits are not cheap, but I think they still represent a clear bargain. The rest of the system is; Auralic Aries G1, Oppo udp 205 (Mainly used as a DAC, but also for disc spinning.) Pro-Ject Pre-amp RS (New old stock), Hypex Nilai 500’s and Audiophysic Spark III speakers. All power is routed through a Puritan psm156 (DC blocker). Thoroughly recommended. KJF audio was spot on for service and a pleasure to deal with!
Chris Legg (verified owner) –
I’ve had my Nilai monos for just over a year now so I thought perhaps time to give some feedback. First, the buying experience. If you feel nervous about dealing with a small business like KJF, don’t be. Stefan was a pleasure to deal with (and he has a dry sense of humour!). He very readily got back to Hypex on a small post-sale issue, which was in fact caused by my home crafted power lead. Now, making the kits. It really was easy. Just take it steady, follow the visual instructions and you get there. No soldering required. It helps to slacken off the casing screws slightly when sliding the lid panel into place, but that’s all I can really add here. The casework is a series of panels which fit precisely – very precisely! – together. Serviceable rather than beautiful, the finished unit has a distinct sense of solidity. How does they sound? I would use terms like ‘quick’, ‘detailed’, ‘open’, ‘non-fatiguing’. But I’m not sure how much that helps anyone else. The fact is I don’t really notice them now. I just listen to the music. So if these Hypex Nilai500s have a ‘sound’, I really, really like it. Any criticisms? The standby button is tiny, invisible on the casework and I have to locate it by feel. A circular, edge illuminated switch like my RME DAC would have been preferable. That’s it. Otherwise, these are really great pieces of kit.