Tempesta 17

Studied to perform. Full taste for entry level price: gives emotion to Music and cinema.

The Tempesta 17 is our complete proficiency entry level: it is able to convince both for music reproduction and cinema experience.

The Membran of the woofer is a new P2C® Sandwich-Membran consisting of 2 Peek® (
Victrex) sheets with carbon inlay. Its characteristic is high stiffness and no resonances in the application spectrum.

The compression driver is improved trough a special Blumenhofer treatment. This treatment combined with the wooden horn front is one of the secrets of the natural sound of the Blumenhofers. Extraordinary natural and clear sound.


• 2-Ways loudspeaker
• Floor ported Bass-Reflex
• Dedicated chamber for the cross-over
• Hybrid bass reflex tunnel


• 1" Compression Driver with Mylar membrane
• 17cm (6") Woofer with P2C® Membrane
• Gold plated tellurium copper terminals


• Single-wiring-terminals
• Tube Friendly
• 10 years Warranty

Technical Data

Tempesta 20Tempesta 17
MaterialMaterialMaterialeBirch plywoodBirke MultiplexMultistrato di betullaMDF
ThicknessMaterialdickeSpessore25mm / 1"19mm / 0,75"
Internal BracingVerstrebungIrrigidimentoYesJaSiNo
Cross over chamberKammer für FrequenzweicheVolume separato per filtroYesJaSiYesJaSi
Frequency rangeFrequenzgangRisposta in frequenza40Hz - 20kHz ± 2dB45Hz - 20kHz ± 2dB
Bass CabinetBass GehäuseCabinet dei bassiDivergent
Bass Reflex
Bass Reflex
Bass Reflex
Bass Reflex
Bass Reflex
Bass Reflex
PortingBass ReflexCanaleFloorZum BodenA pavimentoFloorZum BodenA pavimento
WooferTiefmitteltönerWoofer200mm / 8"170mm / 6,5"
P2F® Sandwich
P2F® Sandwich
Sandwich P2F®
P2C® Sandwich
Cross over frequencyÜbergangsfrequenzFrequenza di taglio1200 Hz1800 Hz
MidhighMittelhochtönerMedioaltiCompression driverKompressionstreiberDriver a compressioneCompression driverKompressionstreiberDriver a compressione
Horn ThroatHornDiametro tromba1"1"
Membrane dimensionsMembranendimensionDimensione Membrana44mm / 1,75" 35mm / 1,4"
Max power inputBelastbarkeitPotenza massima (RMS)150 W RMS100 W RMS
EfficiencyWirkungsgradEfficienza92 dB90 dB
ImpedanceImpedanzImpedenza8 Ohm8 Ohm
Impedance linearizationImpedanzlinearisierungLinearizzazione d'impedenzaNoNo
MaterialMaterialMaterialeGold plated tellurium copperVergoldetes tellurium KupferRame tellurio placcato oroGold plated tellurium copperVergoldetes tellurium KupferRame tellurio placcato oro
FeetsFüßePiediAdjustable SpikesRegelbare SpikesSpikes regolabiliAdjustable SpikesRegelbare SpikesSpikes regolabili
DimensionsMaßenDimensioni1165 x 240 x 346 mm
46 x 10 x 14 in
950 x 270 x 248 mm
37,5 x 10,5 x 9,75 in
WeightGewichtPeso27 kg / 60lbs16 kg
Packaging dimensionsVerpackungsmaßenDimensioni imballate140 x 50 x 50 cm
56 x 20 x 20 in
105 x 60 x 38 cm
Loudspeakers per cartonLautsprecher per KartonPezzi pro cartone12
Packaging weightVerpackungsgewichtPeso imballate30 kg / 66lbs35 kg
Center LoudspeakersCenter LautsprecherDiffusori centraliCenter 20Center 17
Center 17Center 15


In our workshop we can offer true-wood veneers.
Wood is a natural product and depending on several factors might have different color and structure. Color and structure variations of the surface are not to be considered flaws.


Il Galà di Spinelli - Milano

Gran Galà dell'alta Fedeltà di Milano

Westdeutsche HiFi Tage

Soundrevolution in Olten Switzerland

The Tempesta 17 receives the golden ear award from Stereoplay


Dimensions of the Tempesta 17