

- NEWS
- *** DEALS ***
- PRODUCTS
-
BRANDS
-
ALPINE
-
STATUS
-
MOBILE MEDIA STATIONS
-
NAVIGATION SYSTEMS
-
DIGITAL MEDIA RECEIVERS
-
AUDI SYSTEMS
-
BMW SYSTEMS
-
FIAT/IVECO SYSTEMS
-
FORD SYSTEMS
-
MERCEDES SYSTEMS
-
SKODA SYSTEMS
-
TESLA SYSTEMS
-
VOLKSWAGEN SYSTEMS
-
DIGITAL VIDEO RECORDERS
-
CAMERAS
-
MULTIMEDIA
-
INSTALLATION KITS
-
INTERFACES
-
ANTENNAS
-
CABLES
-
AMPLIFIERS
-
ADVENTURE AUDIO SOUND SYSTEMS
-
TYPE-X SPEAKERS
-
TYPE-R SPEAKERS
-
TYPE-S SPEAKERS
-
TYPE-G SPEAKERS
-
TYPE-E SPEAKERS
-
ACTIVE SUBWOOFERS
-
PASSIVE SUBWOOFERS
-
PROCESSORS
-
MARINE SOLUTIONS
-
-
ARGON
-
AUDIOLAB
-
BANG & OLUFSEN
-
BOWERS & WILKINS
-
CANTON
-
CAVUS
-
CHORD COMPANY
-
CLASSÉ
-
COMFORT MAT
-
DALI
-
DENON
-
ELIPSON
-
EUFY
-
FOCAL
-
FOCAL CAR
-
GINEOS
-
GLADEN
-
GOLDRING
-
IN-AKUSTIK
-
AIR
-
MICRO AIR
-
VIDEO CABLES - OPTICAL HDMI
-
VIDEO CABLES - HDMI
-
AUDIO CABLES - RCA
-
AUDIO CABLES - RCA-JACK
-
AUDIO CABLES - JACK
-
AUDIO CABLES - SUBWOOFER
-
AUDIO CABLES - TOSLINK
-
PRE-TERMINATED SPEAKER CABLES
-
AUDIO CABLES - SPEAKER
-
INSTALL
-
PLUGS AND JUMPER CABLES
-
SURGE PROTECTORS
-
TURNTABLE ACCESSORIES
-
AUDIO ACCESSORIES
-
-
JL AUDIO
-
JL AUDIO CAR
-
SPEAKERS C7
-
SPEAKERS C6
-
SPEAKERS C3
-
SPEAKERS C2
-
SPEAKERS C1
-
CUSTOM FIT
-
DSP AMPLIFIERS
-
AMPLIFIERS
-
AMPLIFIERS - ACCESSORIES
-
PROCESSORS
-
SUBWOOFERS W7
-
SUBWOOFERS W6
-
SUBWOOFERS W5
-
SUBWOOFERS W3
-
SUBWOOFERS W1
-
SUBWOOFERS W0
-
SUBWOOFER GRILLES
-
ACTIVE ENCLOSED SUBWOOFERS
-
ENCLOSED SUBWOOFERS
-
CONNECTION SYSTEMS
-
STEALTHBOX VEHICLE-SPECIFIC
-
-
LEAK
-
MARANTZ
-
MILTY
-
MOSCONI
-
NAIM
-
NORSTONE
-
OPERA LOUDSPEAKERS
-
POLK AUDIO
-
Q ACOUSTICS
-
QED
-
QUAD
-
RAIDHO
-
SAPHE
-
SCANSONIC HD
-
SONOS
-
SONUS FABER
-
SOUNDCORE
-
SUMIKO
-
THINKWARE
-
UNISON RESEARCH
-
WHARFEDALE
-
WILSON
-
- OUTLET
- SUPPORT
- SERVICE
- CAREER
- CONTACT
- HOME
- PRODUCTS
- SPEAKERS
-
BOOKSHELF
- SC-N10
- SC-M41
- RESERVE R200
- RESERVE R100
- Signature Elite ES20
- Signature Elite ES15
- Signature Elite ES10
- MONITOR XT20
- MONITOR XT15
- T15
- 805 D4 SIGNATURE
- 805 D4
- 705 S3 SIGNATURE
- 705 S3
- 706 S3
- 707 S3
- 607 S3
- 606 S3
- M-1
- DIABLO UTOPIA COLOUR EVO WOOD
- DIABLO UTOPIA COLOUR EVO
- SOPRA N°1
- KANTA N°1
- ARIA EVO X N°1
- THEVA N°1
- SIB EVO DOLBY ATMOS 2.0
- SIB EVO 2.0
- EXCLUSIVE 4
- RAPTOR 3
- RAPTOR 1
- RAPTOR MINI
- CLASSIC
- NEW REFERENCE 9
- EPIKORE 3
- RUBIKORE 2
- MENUET
- OBERON 3
- OBERON 1
- OPTICON 2 MK2
- OPTICON 1 MK2
- ELECTA AMATOR III
- CONCERTINO G4
- OLYMPICA NOVA I
- SONETTO II G2
- SONETTO I G2
- LUMINA II AMATOR
- LUMINA II
- LUMINA I
- AURA 2
- AURA 1
- DOVEDALE
- SUPER LINTON
- LINTON SET
- LINTON
- SUPER DENTON
- DENTON 85th
- REVELA 1
- QA 7000 LRi
- QA 3030c
- QA 3020c
- QA 3010c
- LEAK SANDWICH 250 WITH STAND
- LEAK SANDWICH 250
- LEAK SANDWICH 150
- CALLAS
- PRIMA V2
- MEZZA V2
- PRIMA
- PLANET L PERFORMANCE
- PLANET L
- PLANET M
- HERITAGE XLS 15
- HERITAGE XLS 11
- HERITAGE XLS 7
- HORUS 6B
- MEZZA V2
Compact Speaker
Introduction
Designing an approximately eight-liter speaker using a midwoofer with an effective diameter of just 105 mm is a classic approach in loudspeaker manufacturing worldwide. However, far from being a simple task, it requires certain design choices that may seem unconventional. Many manufacturers opt for bass reflex tuning that prioritizes low-frequency extension, often at the expense of power handling and, more importantly, damping.
Our approach, instead, focuses on achieving a good balance: providing reasonable low-end extension along with effective damping, without resorting to extreme midwoofer parameters that would ultimately compromise power handling.
The cabinet
For the design of this loudspeaker, we started by ensuring that any coloration caused by vibrations was minimized as much as possible. We used a 4-centimeter-thick front panel and carefully chose the proportions of the cabinet to reduce internal reflections. Given the dimensions, these reflections fall within the midrange frequencies—an especially sensitive part of the audio spectrum. Minimizing all forms of coloration to negligible levels enhances the clarity of subtle signals, improving the sense of ambiance and the accuracy of the reproduced soundstage.
The small size reflex port is positioned at the rear, so the speaker should be placed at least 20 centimeters away from the back wall when in use.
The speakers
Our collaboration with Scan-Speak allowed us to design a midwoofer with customized parameters, enabling a highly damped tuning. The size of the voice coil and the linear excursion of the diaphragm contribute to impressive power handling, even at low frequencies. The choice of an aluminum diaphragm results in a low moving mass and avoids the prominent high-frequency break-ups that would have complicated crossover design.
The tweeter is based on a standard model from the Danish manufacturer, but with a significantly reinforced motor structure to ensure better frequency handling, especially in the midrange. A well-balanced force factor and tailored compliance have led to an exceptionally fast transient response, further enhanced by a carefully designed acoustic phase behavior that emphasizes attack dynamics.
The crossover filter
The crossover network, refined after finalizing the cabinet dimensions and minimizing internal standing waves, is relatively simple in design. It was developed with careful attention to both the acoustic response of the individual filter sections and the phase alignment of each driver, optimized on and off axis. This ensures a soundstage that accurately preserves spatial cues and the depth of the original recording when reproduced in a real listening environment.
The inductors are air-wound using thick-gauge copper wire to minimize series resistance, while the damping resistors are carefully selected to optimize both frequency response and acoustic phase behavior.
Conclusion
At the end of the optimization process, we achieved a loudspeaker that is slim yet robust, with a frequency response that goes beyond being merely flat on-axis and instead delivers impressive real-world performance in-room. Its compact size, ability to be placed close to the rear wall, and particularly enjoyable vocal range make it a true benchmark in both balance and acoustic performance.
- Type: Two-way Bass-Reflex Bookshelf Speaker
- Tweeter: 26 mm Soft Dome Tweeter Double Ferrite Magnet, Alu Front plate
- Mid/Woofer: 150 mm Black anodized Alu Cone Ferrite Magnet
- Sensitivity (2.83 V / 1 m): 88 dB
- Frequency response (-3 dB): 55 Hz - 28,000 Hz
- Nominal impedance: 4 Ω
- Minimum impedance: 3.5 Ω
- Maximum power: 100 W without clipping
- Recommended amplifier power: 25 - 100 W
- Crossover frequency: 2200 Hz
- Dimension cabinet only (W x H x D): 203 x 382 x 372 mm
- Loudspeaker with stand (W x H x D): 312 x 1116 x 439 mm
DOCUMENTS
SALE
Additional info
Other products in category BOOKSHELF
RESERVE R200
POLK AUDIO
Compact Speaker
399 €
RETAIL PRICE
|
324.39 €
PRICE (excl. VAT)
|
See more | Where to buy? |
RESERVE R100
POLK AUDIO
Compact Speaker
299 €
RETAIL PRICE
|
243.09 €
PRICE (excl. VAT)
|
See more | Where to buy? |
Signature Elite ES20
POLK AUDIO
Compact Speaker
199 €
RETAIL PRICE
|
161.79 €
PRICE (excl. VAT)
|
See more | Where to buy? |
Signature Elite ES15
POLK AUDIO
Compact Speaker
179 €
RETAIL PRICE
|
145.53 €
PRICE (excl. VAT)
|
See more | Where to buy? |
Signature Elite ES10
POLK AUDIO
Compact Speaker
139 €
RETAIL PRICE
|
113.01 €
PRICE (excl. VAT)
|
See more | Where to buy? |
MONITOR XT20
POLK AUDIO
Compact Speaker
139 €
RETAIL PRICE
|
113.01 €
PRICE (excl. VAT)
|
See more | Where to buy? |
MONITOR XT15
POLK AUDIO
Compact Speaker
99.90 €
RETAIL PRICE
|
81.22 €
PRICE (excl. VAT)
|
See more | Where to buy? |
T15
POLK AUDIO
Compact Speaker
74.90 €
RETAIL PRICE
|
60.89 €
PRICE (excl. VAT)
|
See more | Where to buy? |
805 D4 SIGNATURE
BOWERS & WILKINS
Compact Speaker
6 749 €
RETAIL PRICE
|
5 486.99 €
PRICE (excl. VAT)
|
See more | Where to buy? |
805 D4
BOWERS & WILKINS
Compact Speaker
4 999 €
RETAIL PRICE
|
4 064.23 €
PRICE (excl. VAT)
|
See more | Where to buy? |
705 S3 SIGNATURE
BOWERS & WILKINS
Compact Speaker
1 999 €
RETAIL PRICE
|
1 625.20 €
PRICE (excl. VAT)
|
See more | Where to buy? |
705 S3
BOWERS & WILKINS
Compact Speaker
1 499 €
RETAIL PRICE
|
1 218.70 €
PRICE (excl. VAT)
|
See more | Where to buy? |
706 S3
BOWERS & WILKINS
Compact Speaker
999 €
RETAIL PRICE
|
812.20 €
PRICE (excl. VAT)
|
See more | Where to buy? |
707 S3
BOWERS & WILKINS
Compact Speaker
749 €
RETAIL PRICE
|
608.94 €
PRICE (excl. VAT)
|
See more | Where to buy? |
607 S3
BOWERS & WILKINS
Compact Speaker
399 €
RETAIL PRICE
|
324.39 €
PRICE (excl. VAT)
|
See more | Where to buy? |
606 S3
BOWERS & WILKINS
Compact Speaker
499 €
RETAIL PRICE
|
405.69 €
PRICE (excl. VAT)
|
See more | Where to buy? |
M-1
BOWERS & WILKINS
Compact Speaker
299 €
RETAIL PRICE
|
243.09 €
PRICE (excl. VAT)
|
See more | Where to buy? |
DIABLO UTOPIA COLOUR EVO WOOD
FOCAL
Compact Speaker
9 999 €
RETAIL PRICE
|
8 129.27 €
PRICE (excl. VAT)
|
See more | Where to buy? |
DIABLO UTOPIA COLOUR EVO
FOCAL
Compact Speaker
8 999 €
RETAIL PRICE
|
7 316.26 €
PRICE (excl. VAT)
|
See more | Where to buy? |
SOPRA N°1
FOCAL
Compact Speaker
4 499 €
RETAIL PRICE
|
3 657.72 €
PRICE (excl. VAT)
|
See more | Where to buy? |
KANTA N°1
FOCAL
Compact Speaker
3 249 €
RETAIL PRICE
|
2 641.46 €
PRICE (excl. VAT)
|
See more | Where to buy? |
ARIA EVO X N°1
FOCAL
Compact Speaker
749 €
RETAIL PRICE
|
608.94 €
PRICE (excl. VAT)
|
See more | Where to buy? |
THEVA N°1
FOCAL
Compact Speaker
359 €
RETAIL PRICE
|
291.87 €
PRICE (excl. VAT)
|
See more | Where to buy? |
SIB EVO DOLBY ATMOS 2.0
FOCAL
Compact Speakers (Pair)
499 €
RETAIL PRICE
|
405.69 €
PRICE (excl. VAT)
|
See more | Where to buy? |
SIB EVO 2.0
FOCAL
Compact Speaker (Pair)
249 €
RETAIL PRICE
|
202.44 €
PRICE (excl. VAT)
|
See more | Where to buy? |
EXCLUSIVE 4
WILSON
Compact Speaker
149 €
RETAIL PRICE
|
121.14 €
PRICE (excl. VAT)
|
See more | Where to buy? |
RAPTOR 3
WILSON
Compact Speaker
149 €
RETAIL PRICE
|
121.14 €
PRICE (excl. VAT)
|
See more | Where to buy? |
RAPTOR 1
WILSON
Compact Speaker
99.90 €
RETAIL PRICE
|
81.22 €
PRICE (excl. VAT)
|
See more | Where to buy? |
RAPTOR MINI
WILSON
Compact Speaker
74.90 €
RETAIL PRICE
|
60.89 €
PRICE (excl. VAT)
|
See more | Where to buy? |
NEW REFERENCE 9
CANTON
Compact Speaker
1 799 €
RETAIL PRICE
|
1 462.60 €
PRICE (excl. VAT)
|
See more | Where to buy? |
EPIKORE 3
DALI
Compact Speaker
4 999 €
RETAIL PRICE
|
4 064.23 €
PRICE (excl. VAT)
|
See more | Where to buy? |
RUBIKORE 2
DALI
Compact Speaker
1 299 €
RETAIL PRICE
|
1 056.10 €
PRICE (excl. VAT)
|
See more | Where to buy? |
OPTICON 2 MK2
DALI
Compact Speaker
599 €
RETAIL PRICE
|
486.99 €
PRICE (excl. VAT)
|
See more | Where to buy? |
OPTICON 1 MK2
DALI
Compact Speaker
449 €
RETAIL PRICE
|
365.04 €
PRICE (excl. VAT)
|
See more | Where to buy? |
ELECTA AMATOR III
SONUS FABER
Compact Speaker
5 999 €
RETAIL PRICE
|
4 877.24 €
PRICE (excl. VAT)
|
See more | Where to buy? |
CONCERTINO G4
SONUS FABER
Compact Speaker
2 129 €
RETAIL PRICE
|
1 730.89 €
PRICE (excl. VAT)
|
See more | Where to buy? |
OLYMPICA NOVA I
SONUS FABER
Compact Speaker
3 999 €
RETAIL PRICE
|
3 251.22 €
PRICE (excl. VAT)
|
See more | Where to buy? |
SONETTO II G2
SONUS FABER
Compact Speaker
1 379 €
RETAIL PRICE
|
1 121.14 €
PRICE (excl. VAT)
|
See more | Where to buy? |
SONETTO I G2
SONUS FABER
Compact Speaker
1 099 €
RETAIL PRICE
|
893.50 €
PRICE (excl. VAT)
|
See more | Where to buy? |
LUMINA II AMATOR
SONUS FABER
Compact Speaker
879 €
RETAIL PRICE
|
714.63 €
PRICE (excl. VAT)
|
See more | Where to buy? |
LUMINA II
SONUS FABER
Compact Speaker
699 €
RETAIL PRICE
|
568.29 €
PRICE (excl. VAT)
|
See more | Where to buy? |
LUMINA I
SONUS FABER
Compact Speaker
529 €
RETAIL PRICE
|
430.08 €
PRICE (excl. VAT)
|
See more | Where to buy? |
AURA 2
WHARFEDALE
Compact Speaker
999 €
RETAIL PRICE
|
812.20 €
PRICE (excl. VAT)
|
See more | Where to buy? |
AURA 1
WHARFEDALE
Compact Speaker
749 €
RETAIL PRICE
|
608.94 €
PRICE (excl. VAT)
|
See more | Where to buy? |
DOVEDALE
WHARFEDALE
Compact Speaker
2 999 €
RETAIL PRICE
|
2 438.21 €
PRICE (excl. VAT)
|
See more | Where to buy? |
SUPER LINTON
WHARFEDALE
Compact Speaker
999 €
RETAIL PRICE
|
812.20 €
PRICE (excl. VAT)
|
See more | Where to buy? |
LINTON
WHARFEDALE
Compact Speaker
629 €
RETAIL PRICE
|
511.38 €
PRICE (excl. VAT)
|
See more | Where to buy? |
SUPER DENTON
WHARFEDALE
Compact Speaker
599 €
RETAIL PRICE
|
486.99 €
PRICE (excl. VAT)
|
See more | Where to buy? |
DENTON 85th
WHARFEDALE
Compact Speaker
399 €
RETAIL PRICE
|
324.39 €
PRICE (excl. VAT)
|
See more | Where to buy? |
QA 7000 LRi
Q ACOUSTICS
Compact Speaker
195 €
RETAIL PRICE
|
158.54 €
PRICE (excl. VAT)
|
See more | Where to buy? |
QA 3030c
Q ACOUSTICS
Compact Speaker
319 €
RETAIL PRICE
|
259.35 €
PRICE (excl. VAT)
|
See more | Where to buy? |
QA 3020c
Q ACOUSTICS
Compact Speaker
249 €
RETAIL PRICE
|
202.44 €
PRICE (excl. VAT)
|
See more | Where to buy? |
QA 3010c
Q ACOUSTICS
Compact Speaker
189 €
RETAIL PRICE
|
153.66 €
PRICE (excl. VAT)
|
See more | Where to buy? |
LEAK SANDWICH 250 WITH STAND
LEAK
Compact Speaker
1 299 €
RETAIL PRICE
|
1 056.10 €
PRICE (excl. VAT)
|
See more | Where to buy? |
LEAK SANDWICH 250
LEAK
Compact Speaker
1 149 €
RETAIL PRICE
|
934.15 €
PRICE (excl. VAT)
|
See more | Where to buy? |
LEAK SANDWICH 150
LEAK
Compact Speaker
599 €
RETAIL PRICE
|
486.99 €
PRICE (excl. VAT)
|
See more | Where to buy? |
CALLAS
OPERA LOUDSPEAKERS
Compact Speaker
2 449 €
RETAIL PRICE
|
1 991.06 €
PRICE (excl. VAT)
|
See more | Where to buy? |
PRIMA V2
OPERA LOUDSPEAKERS
Compact Speaker
1 449 €
RETAIL PRICE
|
1 178.05 €
PRICE (excl. VAT)
|
See more | Where to buy? |
PRIMA
OPERA LOUDSPEAKERS
Compact Speaker
979 €
RETAIL PRICE
|
795.93 €
PRICE (excl. VAT)
|
See more | Where to buy? |
PLANET L PERFORMANCE
ELIPSON
Lifestyle Speaker
NEW!
649 €
RETAIL PRICE
|
527.64 €
PRICE (excl. VAT)
|
See more | Where to buy? |
PLANET L
ELIPSON
Lifestyle speaker
479 €
RETAIL PRICE
|
389.43 €
PRICE (excl. VAT)
|
See more | Where to buy? |
PLANET M
ELIPSON
Lifestyle speaker
279 €
RETAIL PRICE
|
226.83 €
PRICE (excl. VAT)
|
See more | Where to buy? |
HERITAGE XLS 15
ELIPSON
Compact Speaker
1 199 €
RETAIL PRICE
|
974.80 €
PRICE (excl. VAT)
|
See more | Where to buy? |
HERITAGE XLS 11
ELIPSON
Compact Speaker
849 €
RETAIL PRICE
|
690.24 €
PRICE (excl. VAT)
|
See more | Where to buy? |
HERITAGE XLS 7
ELIPSON
Compact Speaker
399 €
RETAIL PRICE
|
324.39 €
PRICE (excl. VAT)
|
See more | Where to buy? |
HORUS 6B
ELIPSON
Compact Speaker
169 €
RETAIL PRICE
|
137.40 €
PRICE (excl. VAT)
|
See more | Where to buy? |