HRS-130
Omnidirectional Loudspeaker
Reference Series
Award Winning Loudspeaker
The HRS-130 is derived from our best -selling Borderland Mk IV loudspeaker. It uses a single carbon fibre German Physiks DDD driver mounted on top of a compact, octagonal, floor standing cabinet, with a downward firing 10-inch woofer set in its base. While it may be our entry level model, it uses the same DDD driver as the rest of our loudspeaker range, including the flagship Gaudi Mk III. Consequently, it can give the listener a very real taste of the audiophile nirvana that the Gaudi can provide. Despite its comparatively compact cabinet, it can punch well above its weight. It will allow the listener to enjoy a convincing concert experience in modest size rooms, whilst also being able to perform well in larger spaces.
Immersive three-dimensional stereo imaging
“The HRS-130’s crossover provides excellent integration of the DDD driver and woofer, so that they work together seamlessly, to create a detailed, three-dimensional stereo image that immerses you in the music. This was very well described by the reviewer Dick Olsher, when he reviewed the HRS-130 in the respected American audio magazine The Absolute Sound.”
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The HRS-130 was able to generate such a palpable soundstage that I felt at times that I could walk right into it. In fact, I did just that a couple of times—got out of my chair and walked into the soundstage. It was spooky getting behind one of the speakers while continuing to experience a realistic presentation. (Don’t try this with a typical box speaker.)”
Dick Olsher, The Absolute Sound, November 2017
Outstanding transparency
The DDD driver provides the HRS-130 with an extremely high level of transparency. This opens a new window on to your music collection, by helping to reveal fine detail and ambience information that you would normally only expect to hear at a live performance.
Exceptional dynamics
Due to its very low moving mass, the DDD driver gives the HRS-130 an exceptional dynamic response. This allows percussion to be more realistically reproduced and it also makes it easier to follow the various threads in a performance, even at high levels. This is especially beneficial when listening to large scale orchestra works.
Well controlled and extended bass
A 10-inch downward firing woofer located in the bottom of a sealed enclosure provides deep and well-defined bass with excellent control. This is the same high-quality unit that is used in our more expensive PQS-402. To provide a smoother bass response, the HRS-130’s bass system uses a Helmholtz resonator.
This consists of a small additional cavity located in the top of the cabinet, which is linked to the main bass enclosure by a small opening.
By carefully selecting the resonator’s resonant frequency, unevenness in the bass response is avoided.
The revolutionary DDD driver
The heart of all German Physiks loudspeakers is our revolutionary DDD driver. This is an omnidirectional driver with an exceptionally wide frequency range. Despite its simple appearance, it is in reality an extremely sophisticated design.
It provides 8 important advantages to all German Physiks loudspeakers and this combination is what sets them apart from other loudspeakers.
A realistic stereo image more like you experience in the concert hall.
A stereo image that is enjoyable in almost all positions in your room.
An exceptionally coherent sound.
Accurate portrayal of musical instruments’ tonal characteristics.
An exceptional transient response.
Being omnidirectional they are comparatively quick and easy to set up.
The DDD driver’s low moving mass reduces cabinet resonances.
The carbon fibre DDD driver is physically extremely rugged.
Easy to set-up and use
The DDD driver’s omnidirectional radiation pattern and wide frequency range make the HRS-130 less critical of its position in the room than conventional loudspeakers, so they are comparatively quick and easy to set up. Another advantage of being omnidirectional is that no toe-in adjustment is required, which further simplifies the set-up procedure.
With a cabinet footprint of only 325mm x 325mm (12.8” x 12.8”), the HRS-130 is easy to fit into even a modest sized room. Don’t let this deceive you though, as the HRS-130 will drive rooms up to 75 square metres (792 sq ft) in size.
Separate inputs are provided for the woofer and DDD driver crossover inputs, allowing single or bi-wire connection.
Jumpers on the loudspeaker’s rear panel allow the high frequency output level to be adjusted in 4 steps: -2dB, flat, +2dB and +4dB, enabling the user to easily compensate for the variations in the absorption of high frequencies that can occur due to different types of furnishings and room construction.
Low resonance cabinet design enhances transparency
Colouration caused by resonances in a loudspeaker cabinet, where the cabinet itself starts to radiate sound energy, can seriously degrade the sound quality by obscuring detail. To counter this, the HRS-130, like our more expensive Borderland Mk IV, uses an octagonal cross-section cabinet. The panels on this cabinet are smaller and stiffer than those of an equivalent size square section cabinet would be. Critically placed internal bracing further increases rigidity.
A special damping material called Hawaphon® is applied to the inside of each panel. This adds mass to the panel to reduce the resonant frequency and its internal structure very effectively converts vibration energy into heat. Hawaphon® achieves a broadband attenuation of structure-borne sound of more than 50dB, which is a remarkably high figure.
To damp resonances of the air within the cabinet, the whole of the inside of the cabinet is lined with a thick layer of high-density felt.
Designed for a lifetime of listening pleasure
As you would expect from a German product, the quality of construction and reliability are first class. We use the same quality of parts in the this speaker as in our reference products, where we design for a minimum life expectancy of 25 years.
Meticulous care and attention are paid during manufacture. Prior to assembly all components and materials are subject to a rigorous inspection. We also carry out detailed inspections at each stage of the manufacturing process. We can afford to do this as we build our products by hand in small batches. After assembly, the performance of each loudspeaker is measured. It is then burnt-in for at least 12 hours and then measured again. Once the burn-in process is complete, each loudspeaker is given a final detailed physical inspection before being packed.
Finish Options
To achieve a luxurious look that matches their outstanding sound quality, all our loudspeaker cabinets are hand-built and finished in Germany by skilled cabinet makers.
The standard finishes are high-polish polyester in black or white, carbon fibre and macassar, walnut cluster and pappel cluster high-polish veneers.
Other high-polish veneers and high polish polyester in custom colours are available to special order. Please consult your dealer for details.
Impedance – 4 ohms
Frequency Response – 29 – 24,000Hz
Power Handling – Nominal 120W / Short term 200W
Amplification Required – Minimum 70W/4 ohm
Crossover Frequency – 220Hz
Crossover Slopes – DDD section 12dB/octave electronic & 18dB/octave acoustic
Woofer section – 12dB/octave electronic & 18dB/octave acoustic
High Frequency Adjustment – -2dB, flat, +2dB and +4dB centred at 8,000Hz
Sensitivity – 86.9 dB for 1W at 1m
Operating Principle – 2-way loudspeaker with 360° surround radiation using
the German Physiks DDD driver
Input Connectors – 2 sets of WBT nextgen™ binding posts
Drivers – 1 x carbon fibre DDD driver / 1 x 10-inch woofer
Recommended Room Size – 10 - 75 square metres / 106 – 792 square feet
Dimensions – 325mm W x 1,160mm H x 325mm D (12.8" W x 45.7" H x 12.8" D)
Weight – 37.4kg / 82.3lbs
Warranty – 5 years
As part of our process of continually improving our products, we reserve the right to change specifications without notice
DDD Loudspeakers Models
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![A line drawing of the German Physiks HRS-130 Omnidirectional Loudspeaker.]()
The HRS-130
LOUDSPEAKER
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![A line drawing of the German Physiks Borderland MK IV Omnidirectional Loudspeaker.]()
The Borderland MK IV
LOUDSPEAKER
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![A line drawing of the German Physiks Borderland MK IV Omnidirectional Loudspeaker.]()
The Carbon MK IV
LOUDSPEAKER
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![Line drawing of a vintage shelf with two stacked washbasins and two washing machine or dryer units.]()
The PQS-302
LOUDSPEAKER
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![Black and white line drawing of a building with two large circular structures, possibly a factory or industrial facility, with a tall chimney on the left side.]()
The PQS-402
LOUDSPEAKER
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![Line drawing of a Lidar sensor mounted on a traffic light pole with three circular traffic lights.]()
The Loreley MK III
LOUDSPEAKER
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![Black and white line drawing of a large speaker with four circular speaker cones on a black background, with an attached cylindrical object on the right side.]()
The Emperor MK II
LOUDSPEAKER
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The Gaudi Mk III
LOUDSPEAKER
