Sven has been a long time Do-It-Yourself Loudspeaker builder and enthusiast.
After many years using a number of the very successful Ground Sound DCN23 digital crossover Sven
decided that now was the time to upgrade. The choice was obvious that it had to be DCN28
so that he also could replace the Lyngdorf digital pre-amplifier - altogether simplifying and having
a shorter signal chain. Sven also invested in a Ground Sound Chassis II 1500 quad channel power amplifier.
A part of the deal was that I Robert delivered the crossover/pre-amplifier and power amplifier and at the
same time made the initial measurements of the system. At the time of delivery the system was 4-way active
consisted of ScanSpeak dome tweeter, Audio Technology C-Quence 15 midrange, Tymphany LAT 500 bass and
JBL LE15B subwoofers. I would say that the initial crossover set-up were very good and Sven also noticed a
significant improvement in the sound reproduction - in fact much more details than ever before!
But in fact there was even more to gain in sound quality in the Listening Position! The fact was that
the tweeter / midrange was placed too high when sitting in the the listening position and this was easily proved
raising ones head some 30cm. And the sound stage also benefited from a closer listening position. Sven had some new
ideas to work on after my visit and I even know he had ideas of chancing the Tymphany LAT 500 bass drivers to
some Seas 8" drivers that he had in stock from a previous build...
Using the DCN28 and measuring the new drivers and boxes it will be an easy and fun task.
- Pre-amplifier/Digital Crossover/DAC: Ground Sound DCN28
- Power Amp 1: Prima Luna Dialogue 4 (Tweeter)
- Power Amp 2: Gamut D200 Mk3 (Bass)
- Power Amp 3: Ground Sound Chassis 1500 (Sub + Mid)
- CD Player: Ayre CX-7
- Blue Ray: Oppo BDP 103 EU
- HTPC with JRiver Software to play hi-res music
- USB Dac: HRT HD
- AC Regenerator: PS Audio Power Plant Premiere
- Projektor: JVC DLA X30
- Cables: Acustic Zen, MIT, Silk, Furutech, Supra
- Connectors: Furutech, Supra
This is initial setup based upon measurements of the individual drivers
A closer look at stereo bench with all of the power amplifiers in sight
The DIY front loudspeaker tower with ScanSpeak, Audio Technology and Tymphany drivers
The corner placed DIY subwoofer with 15" JBL driver
Sven - the proud DIY builder in his acoustical well trimmed Listening Room