We are a small business specialising in DIY home audio speakers, full range speaker kits, speaker cabinet flat packs and custom speaker design. We are the official UK/EU Markaudio and Hypex distributor. We can supply range of loud speaker kits using these Markaudio point source speaker drivers, along side the other speaker components we retail like Jordan, Cube, Neutrik, Hypex and more traditional multi way speaker kits. We also offer our own line of amplifiers that offer a high performance to cost ratio.
As speaker cabinet builders, we are particularly pleased to be able to offer some of the best DIY speakers available, using the best loudspeaker drive units, as an alternative to commercial speakers and electronics that genuinely compete on sound quality at a fraction of the cost, whilst maintaining the manufacture of these products in the United Kingdom wherever possible.
“The single-driver performance is certainly rather different from the far more widespread ‘speakers with bass’ approach. After the last couple of months experience I’ve come to the conclusion that it’s not only entirely valid, but actually a superior approach…” Paul Messenger
Hypex Nilai500DIY 500W Mono Kit (£690.00 UK VAT added in cart)
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.
SA-01 Stereo Power amplifier (250W) (£590.00 UK VAT added in cart)
I was sceptical that a class D amp would suit my system and musical preferences so to cut to the chase - SA-01 amp installed and running with some speakers that had sat unused for at least 12 yrs !! Unsurprisingly it took a good couple of hours for the the speakers to ' wake up ' and the new amp and cables to get their mojo going ,
This is without doubt the quietest amp I have experienced -absolutely ink black nothingness and absolutely neutral in character , this made low level listening a real pleasure and captured a lot of musical nuances I had missed ! The speakers still need a bit more of a workout and final positioning etc - the SA-01 so far has been a total delight , great value for money and strongly recommended .
I cannot fault Stefan and his level of service ,
Tozzi Two (pair) (£371.00£352.45 UK VAT added in cart)
The Tozzi Two are a fantastic pair of speakers with a neutral transparent sound that is musical, engaging and tonally accurate. These were selected for their flat frequency response and low mass single-driver-single-suspension concept and do not disappoint. The shallow cone profile and symmetrical waveguide allow natural imaging and a wide sound dispersion. The aluminium-ABS enclosure is high quality, very rigid and has reassuring weight to it. Gold-plated banana plug contacts at the back is great, along with a bass port to slightly increase bass extension. Bass extension is respectable but limited. However, these could be blended with a pair of bass woofers such as the CHR-120 (which have a similar cone profile) with simple crossovers to produce an incredible full-bandwidth system.
My pair cost £410 altogether; I was so impressed that I bought a second pair. Applicable for both musical enjoyment and critical listening; I use Graham Slee Proprius monoblocks for speaker amplification and the result is professional studio-standard sound for nearfield desktop listening, in my opinion. Thank you Mark Fenlon for producing this product at an affordable price point.
Hypex Nilai500DIY 500W Mono Kit (£690.00 UK VAT added in cart)
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!
MA-01 Flexible amplifier (From: £566.02 UK VAT added in cart)
I have had my two MA-01's with 15 channels of NC25xMP amplification between them for over 18 months so I guess now is a good time to write a review. These are paired with a Monolith HTP-1 and they are a perfect match. If I mute the HTP-1 and crank up the volume there is no background noise or hiss of any kind. With the HTP-1 unmuted the sound is a pure pleasure. The built in fans have come on a few times after some extended movie watching sessions in a warm room so I'm glad they are there. The fans are silent running so the only time you can notice them is after the end credits.
I am glad that I went for some custom laser etched front panels for these, it made them look really professional and well worth the extra cost. I will probably add some more matching MA-01's fitted with bridged NC502MP modules for subwoofer duty in the future.
Alpair 11 MS- Gold/Grey (single driver) (£75.00 UK VAT added in cart)
My son has these built into small ported cabinets for his monitors when mixing at home. He loves them completely. He has use of a professional studio now yet he still loves the 11MS in the small cabinets the best. It’s the accuracy and, of course, the full range and point source advantages. Good enough for his ears means plenty good enough for mine!
SA-01 Stereo Power amplifier (250W) (£590.00 UK VAT added in cart)
Stefan offers a stellar service, and the build quality on this device is simply flawless, it's on a totally different level to anything I've picked up from typical retailers.
I can't rate it highly enough. Everything has been thought through to the smallest detail, exactly the right component parts, and every feature of the fabulous hypex implemented perfectly. I've been listening 12-16 hours a day since I received it, it hasn't broken a sweat, stayed nice and cool. Product flawless, wouldn't change a thing, service excellent, I have the opposite of regrets here, nil, this is one of those rare products you buy and it brings you joy for decades.
Hypex NCORE NC400 Mono-Block Amplifier DIY Kit (£523.52 UK VAT added in cart)
After much deliberation, research and saving-up, I bought a pair of these and some leads from Stefan at KJF Audio. They are incredible. Everything required is included and these build up into some very sturdy, high-class looking blocks - oozing quality. The build is easy - an hour each, even if going carefully, so they are an assembly job rather than a kit. No soldering. No multimeter. No screen/buttons/settings/nonsense. The instructions could be fuller, but you cannot really go wrong, and others have made videos that you can follow if you lose your nerve. Power - enough to lift the roof. Sound - incredible - see Amir's review at ASR... these modules were chart-topping for many years, you cannot do much better. The cables were beautifully made too.
These are power amps for the connoisseur and deserve to be twinned with capable speakers and a pure signal. I doubt I will ever buy another - they are built to last.
I cannot recommend more highly. And great service too - fantastic to be able to support an independent UK company, and a European centre of expertise with a single purchase.
Alpair 5.3 - Gold/Grey (pair) (£70.83 UK VAT added in cart)
Well what can i say. These little 3" drivers are quite astonishing. I was not quite expecting the level of detail airiness that these little drivers produce and the low end will really make you smile as low end like that really should not be coming from drivers so small. I have them in a aperiodic reflex running off my 40w valve amplifier and there simply a plesure yo listen to needless to say i was up till 3 in the morning just listening to music. enough said.
Tozzi One (pair) (£163.00£133.33 UK VAT added in cart)
Quick review after owning the Tozzi Ones for a day and listening for about 10 hours so far.
Coming from a pair of desk mounted Kef LS50 speakers.
Driven by an Arcam SR-250 amplifier and the source is a mix of Amazon Ultra HD and FLAC lossless conversions of my CD collection.
Amplifier is handling the signals digitally and I am using its internal X/over to send 100Hz and below to an SVS 12" SB1000 pro subwoofer.
For some background info, the system started as a desk system as is now and I was happy enough but thought the LS50s where not giving their best.
A momentary swap for their smaller active LSX speakers confirmed this as the soundstage opened up and definitive left and right speakers disappeared - but the highs where not as sharp and detailed as the 50s, which left me underwhelmed and they went back.
Then I moved the room around to give the LS50s space and proper stand mounting. This instantly brought them together and they do sound very nice indeed with 6 foot between them and about 7 foot away as a listening position.
Unfortunately, that didn’t work as a working room layout, so back to the desk setup.
Back came the problems. Definitive left and right and no real cohesiveness to the sound. It was all clear and defined etc, just didn’t disappear beyond the drive units when I closed my eyes.
The tozzi ones however, sound everything the Kefs didn’t on the desk. They are positioned on axis in a 40 inch triangle to me and simply disappear. Staging and tonal quality is great, highs are smooth and very listenable. Not as sharp as the LS50 but that’s to be expected and they don’t necessarily sound any worse for it.
The sub helps quite a bit clearly but the initial thoughts from me is that they perform like a big pair of smooth sounding speakers, rather than a sub/sat combination that always leave me feeling cold and unimpressed.
From the listening position and setup I require, the Tozzi kit ultimately sounds better overall than the LS50 speakers. It is simply more listenable.
It is quite a task moving the room around, but I may do it to see how the Tozzi sound as ‘proper’ hifi speakers, although I suspect volume and room filling sound will be there downfall at that point as they simply don’t have the displacement. Would be interesting to find out if I get the time though.
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