Reviewer: Marja & Henk
Financial Interests: click here
Sources: PS Audio PWT; Dr. Feickert Blackbird MKII/DFA 1o5/Zu DL-103; Phasure XX-PC;
DAC: Phasure NOS1 DAC; PS Audio Direct Stream DAC [loaner];
Streaming sources: XXHighEnd; iTunes; Devialet AIR; La Rosita Beta; Qobuz Desktop,
Preamp/integrated/power: Audio Note Meishu with WE 300B (or AVVT, JJ, KR Audio 300B output tubes); dual Devialet D-Premier; Hypex Ncore 1200 based monoblocks; Trafomatic Kaivalya; Trafomatic Reference One; Trafomatic Reference Phono One; Music First Passive Magnetic;
Speakers: Avantgarde Acoustic Duo Omega; Arcadian Audio Pnoe; Podium Sound One; WLM Sub 12; Sounddeco Alpha F3; dual Zu Submission MKI; Soltanus Virtuoso ESL
Cables: complete loom of ASI LiveLine cables; full loom of Crystal Cable cables; full loom of Nanotec Golden Strada; Audiomica Pearl Consequence interconnect; Audiomica Pebble Consequence; PTP Audio Blok20 [in for review]
Power line conditioning: PS Audio Powerplant Premier; PS Audio Humbuster III; IsoTek Evo 3 Syncro; AudioMica Allbit Consequence
Equipment racks: Solid Tech and ASI amplifier and TT shelf
Indispensable accessories: Furutech DeMag; ClearAudio Double Matrix; Franc Audio Ceramic Disc Classic; Shakti Stones; Akiko Audio sticks; Kemp polarity checker
Online Music purveyors:,,  
Room treatment: Acoustic System International resonators, sugar cubes, diffusers
Room size: ca. 14.50 x 7.50m with a ceiling height of 3.50m, brick walls, wooden flooring upstairs, ca 7 x 5m with a ceiling height of 3.50m, brick walls and concrete floor downstairs.
Price of review item:  DSP-6 (DSP/DAC/amp all-in-1) €349; A-408 subwoofer amp €299; S-30 satellite speaker €498; H-100 cornerhorn subwoofer €199

Reckhorn of Germany. Call us ignorant but in all the years we’ve been active in audio land, we never heard of the company, let alone its products. So when the review request came along, we were first of all interested in what had caused that oversight in our product awareness. We thus followed Google is your Friend which netted links to URLs of the company with .net, .com and .org extensions plus forum discussions mostly in German and on the topic of home cinema. The homepage contains a small piece about the man behind the company and his vision: "Mr. Klaus Reck has been working for over 40 years with speakers and their design. In addition to his basic knowledge in the audio field are decades of practical experience with speaker components and the recognition for the need of low-cost production of very good but inexpensive products. Such knowledge has produced many patents and products such as subwoofer amplifiers, electronic crossovers, corner horn subwoofers, body shakers and car speakers. These have been sold worldwide in the tens of thousands. The high customer satisfaction is reflected in customer opinions, forums and reviews."

With this short intro as guide, we also realized that it’d been a very long time since we reviewed anything truly inexpensive. Budget friendly is as close as we’ve gotten. This made us accept the review solicitation on the condition that we’d get a complete Reckhorn set. For Klaus that was no problem. He emailed that we could expect a shipment of the initially requested DSP-6 digital xover/DAC/amp augmented by an A-408 subwoofer amplifier, a pair of S-30 active satellites and an H-100 cornerhorn sub. All this including the DSP software is offered at a going price of—hold on to your hat—€1’350. Yes, that’s for the lot! After our acceptance almost by return mail, we received two large boxes. The smaller one contained the H-100 cornerhorn subwoofer below which at 11kg seemed quite light. Most subwoofers start at 20kg. Those which claim to really go down add lots more to prevent wandering around the room whilst creating proper enclosure inertia against the considerable mechanical forces unleashed.

Not so with the Reckhorn. Here the trick is in the horn design combined with a driver contrived by Herr Reck. The enclosure is a cylinder of bent MDF, 36.5cm in diameter and some 77cm high. Inside sits a baffle dividing the cylinder in half. That baffle is braced on the front by a triangular piece of MDF connecting baffle to curved wall. High on that baffle and close to the capped cylinder top sits the H-100 woofer. Together with the top plate, baffle and semicircular bottom plate, the H-100 woofer has its own enclosure. According to the formula ∏ x radius x radius x height)/2, the volume of the enclosure is around 40 litres. Another 40 litres form the front-loaded horn. But that’s not all. Remember how the full name of the H-100 is cornerhorn? In the wild ‘60s of the previous century, corner horns were quite popular. Low-output tube amps and a clever cornerhorn concept could deliver real low frequencies with decent sound pressure without having to rely on huge contraptions. A standalone horn able to hit 20Hz needs a length of 18 metres and a mouth of some 20m². Not practical when any room already has its own built-in horn facilities: the walls and floor! Wherever two walls meet in a corner, there’s a third boundary called the floor. That’s your horn. In this fashion, the H-100 is raised 5cm by means of a single pin to be screwed on. That pin rests in a provided glue-on rubber mount such that the cylinder leans against both walls in the corner whilst the floor pin keeps the cylinder pushed against the wall and provides the necessary air gap to let the horn breath. It’s as simple as that but just think of it.