DTQWT, built by Kenny, The Netherlands
Copyright 2014 © Troels Gravesen


 Hi Troels,
To start with, I would like to thank you for sharing all these wonderful DIY projects online. I’ve been building DIY speakers for the past 20 years, but never managed to find a design that could compete with vintage 10-inch speaker, until now.
After contemplating to build the Cyclop and the Jenzen Next, I eventually decided to build the DTQWT-mkII T35 due to the high sensitivity.
The woodworking of the DTQWT is fairly complex. Although having some experience in building speakers, this time I found an interior builder to do it for me. I was quite surprised by the size of the cabinets at the moment of delivery. These speakers are HUGE! The cabinets are made of Black MDF and 24mm birch plywood covered with oak veneer. All internal panels are made of 18mm MDF. The weight of these speakers turns out to be around 50kg each.
The speakers are running for a month already. The first time I connected the speakers I immediately noticed the coherent sound of the JA8008 with the tweeter. I was surprised how good and realistic it was, but unfortunately it wasn’t what I expected.  Coming from a Scanspeak bass reflex tower, the bass of the DTQWT (before break in) was disappointing. After pulling and pushing the membranes of the woofers by hand as you recommended, the bass immediately improved. The sound got a lot better over time, now after a month break in time, I can honestly say that these speakers already are the best I’ve ever had, expecting it would get better after a longer break in time. I really enjoy the high fidelity sound of the DTQWT, detailed, transparent, coherent, tight bass, great dynamics and very realistic.
Kind regards, Kenny Tang, The Netherlands.