Cabinet Design

The outside and inside geometry is extremely important for a well controlled and balanced sound radiation.

Inside the cabinet there should be no objects near to the driver cone. This to avoid high energy first reflections that will hit more or less particially the cone surface that generates distortion. This is the case in most rectangular speaker cabinets. The smooth curved spreading side walls in the Daluso cabinets reduce this effect significantly in cooperation with a sound wave diverting back wall. The picture (right) shows the geometries.


Low-Energy-Loss Design

We call it that way because there is too much to loose inside a speaker cabinet. Energy losses instantly degrades the sound quality and sound performances in many ways. Over the years we did many trails of relocating and reducing inside (dampening) material to a specific amount in specific locations. We don’t cover all inside walls with dampening material like most other speaker manufacturers do. The sound would loose all its vividness and natural dynamic properties.


Speaker Drivers Selection

For both tweeter and woofer units we use ceramic driver of the German Company: Accuton Thiel & Partner GmbH. Simply one of the best!


Some Driver Tuning Aspects

Because Accuton ceramic tweeter driver tend to sound slightly harsch in the upper frequency range (above 15 kHz) we did some slight tuning which cuts out this harschness without loosing the vivid sound. Specifically in less dampened listening rooms you will experience a much smoother, nicer and more natural sound, even gaining a more natural dynamic sound of voices

and instruments at different sound pressure level.

At the back of each driver we applied a few Harmonix tuning bases to avoid agressive, harsch sounding resonances and to improve the overall tonal balance.


Crossover Filter Design

In all Dutch Statement speakers we use Series crossover filters. The filter design is exactly the same for all models exactly the same. Only a few values of resistors and capacitors will differ slightly.

We use this approach to reach a near to identical sound for all three models. This is very important to get a homogeneous and well balanced sound in home cinema applications.

We also achieved very slight differences in the electric impendance, varying between 5,6 and 5,9 Ohms minimum. This makes all three models also suitable to be connected to a Tube (Valve) amplifier.

Crossover filter components are exclusively AudynCap capacitors and Tritec HQ-inductors.


Internal Wiring, Soldering and Terminals

For internal wiring we choose a 2,5 mm solid core

copper cable. Eventough the series crossover filter carries 7 electronic components there are only 6 solder joints  with silver in one loudspeakers All other electric joint are mechanically based.

The gold plated speaker terminals are invisibly located under the pedestal (foot) only suitable for speaker cable that carry spade connectors.

Dutch Statement Features


Bass Ports Location

The bass ports, which never look nice in a loudspeaker cabinet, are invisible integrated in the cabinet construction. Two bass ports are located in the round shaped side walls. The openings face down, left and right next to the pedestal (foot).

There are several advantages with this approach:

• you don’t see the bass ports

  1. we can vary the ports in length depending on

   the type and amount of speaker drivers

  1. in most listening room situations there will be significantly less disturbances by standing waves and room modes.


Accessories:

Small metal spikes

Harmonix RF-909X Spike Bases