THE PQS-100 PLUS
The PQS-100 Plus has been designed in response to numerous requests for a lower cost and more compact German Physiks loudspeaker. The challenge was to do this without compromising the speed, transparency and coherence that German Physiks loudspeakers are famous for. This versatile design will give excellent results in both high-end stereo and 5.1 surround systems. When used in 5.1 systems, its excellent bass response obviates the need for a sub-woofer. Its ability to produce detailed and realistic stereo images, which can be enjoyed by many listeners from a wide range of positions within the room, is especially useful in home theatre applications. It is also suitable for centre and rear channel use in multi-channel systems, where larger German Physiks models are being used for the main loudspeakers. In addition, it is well suited for use in galleries, shops and other public places where very high quality sound is required and the sound source must be unobtrusive.
A Wolf in Sheep’s Clothing
The PQS-100 Plus is physically compact, so does not take up a lot of space. This makes it ideal for the smaller room. Despite its compact size, the PQS-100 Plus is capable of driving even quite large rooms to high levels. Whether used in a small or large room, it produces fast, clean and agile bass, which makes the listener think that a much larger loudspeaker is being played. The high quality of the bass provided by the PQS-100 Plus is matched by the high quality of the performance provided by its DDD driver. This gives the excellent speed, dynamics and resolution that German Physiks loudspeakers are famous for and helps to produce the sense of reality that is the essence of a musical performance.
Excellent Driver Integration
A problem with multi-way loudspeakers is how to integrate the drivers so that the listener is not conscious of different parts of the audio range coming from different parts of the loudspeaker. The PQS-100 Plus solves this problem in three ways. Firstly, the DDD driver covers the range from 120Hz to 24,000Hz, so the vast majority of the audio range is covered by just one driver. The DDD driver crosses over to the woofer at 120Hz and the ear’s ability to spatially locate sounds at this frequency is far less acute than it is in the 2,500Hz to 3,000Hz region, where conventional two-way designs cross over. Secondly, the woofer is physically located very close to the DDD driver, which makes the two drivers appear as one source. Thirdly, by making the woofer fire downwards, its radiation pattern more closely matches the omnidirectional pattern of the DDD driver.
5.1 Surround System Possibilities
The table below shows some suggested configurations for 5.1 surround systems using the PQS-100 Plus.
The DDD Driver
The DDD driver is used on all German Physiks loudspeakers and the same quality of driver is used on all models from our entry level product, to the top of the range Gaudi. This revolutionary driver gives the same very important advantages to all German Physiks designs and is what sets them apart from our competitors.
The PQS-100 Plus is relatively tolerant of where it is positioned in the room, making it easy to set up. It may be set against the wall, or placed into the room.
Low Cabinet Colouration
The PQS-100 Plus solves the problem of cabinet colouration by having a minimalist cabinet. This is machined from heavy MDF panels, which are inherently very stiff and non-resonant. The cabinet’s rounded shape has been carefully chosen to minimise resonances. The outside of the cabinet is reinforced with a layer of carbon fibre. This provides additional stiffness and therefore resonance suppression. A special damping material called Hawaphon is applied to the inside surfaces of the cabinet. Hawaphon is a polymer sheet containing a matrix of small cells filled with very fine steel shot and was originally developed as an anti-surveillance measure for use in military and government buildings. It adds mass to the cabinet to further reduce the resonant frequency and the ability of the shot in the cells to move against each other provides a very effective way of converting vibration energy into heat. Hawaphon achieves a broadband attenuation of structure-borne sound of more than 50dB: a remarkably high figure. Additional damping is provided by the application of bitumen damping sheets and unwanted air resonances are prevented by the use of high density felt sheet.
Hand Finished Cabinets
The main body of the PQS-100 Plus cabinet is finished in carbon fibre, hand polished to a high gloss. The other parts of the cabinet are finished in black and grey Nextel.
Custom Made Stands
The PQS-100 Plus system includes a set of high quality PQS-Plus stands, which are quick and easy to assemble. They are made from non-resonant MDF and are finished in black and grey Nextel. They provide an ideal mount for the PQS-100 Plus, while being visually unobtrusive. A shorter version of the PQS-Plus stand is available to special order. Please contact German Physiks for details.
The PQS-100 Plus Specifications