Fun 13

Dear little bass horn, Blumenhofer emotions

The Fun 13 is the first loudspeaker, what we build on the concept of the Quarter Wave Length Horn.
The advantages of this construction are both in the compact form and in the deeper bass reproduction for the small driver.
The silk doom tweeter is a response to place and sound needs: the best balance to the sound level and finesse coming from this bass horn construction.
A true Blumenhofer entry level loudspeaker.
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Blumenhofer Acoustics Fun 13 Walnut

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Relative Dimensions Fun 13

Words of the press

HiFi Stars

Specially the women and the visitors of the house pointed their eyes on the Fun 13
It is much more the contagious joy and lightness in the total sound impression
When Physic and Manufacturing come together, the listener has a lot to enjoy. - Article

Fun reflects the real nature of these speakers.
After the burn-in the low range was fine, absolutely unexpected for such a small speaker.
A very particular floorstander capable of surprising and amusing, and of giving a classy sound, unexpectedly big, rhythmical and deep if compared to its physical features. - Article

The tonal balance is nevertheless expertly set, coherent and more sonorous than bright.
The soundstage begins on the speaker line, i.e. is neither forward nor recessed and exhibits realistic dimensions.
Localization assignment is solid.
Instruments and particularly voices are pleasingly embodied.

TNT-Audio - Article

I was astonished to find the presentation even more balanced as with my usual setup.
There was no preferred genre that the Fun 13 liked better than others.
It does not "stand in the way of music", and what else can one tell better on a loudspeaker in this price range.

Specifications of the Fun 13

2-Ways loudspeaker


Quarter Wave Length bass horn
• 19mm MDF
• Resonance and flow optimized bass horn
• High complex internal bracing


• 19mm (3/4") Silk membrane tweeter
• 13cm (5") Woofer with Hexacon Sandwich Kevlar Membrane
• Gold plated Tellurium copper terminal


• Single-wiring-terminals
• Ideal for near wall setup
Tube Friendly
• 5 years Warranty

Technical data of the Fun 13

Fun 13
ThicknessMaterialdickeSpessore19mm / 0,75"
Internal BracingVerstrebungIrrigidimentoStructural bracing interactionStrukturelle InteraktionInterazione strutturale
Cross over chamberKammer für FrequenzweicheVolume separato per filtroNo
Frequency rangeFrequenzgangRisposta in frequenza50Hz - 20kHz ± 2dB
Bass CabinetBass GehäuseCabinet dei bassiBass hornBasshornBasso a tromba
Horn typHorn TypTipo di trombaQuarter wave lenghtVierlelwellenA quarto di lunghezza d'onda
Horn loadHorn RichtungCarico a trombaFloorZum BodenA pavimento
WooferTiefmitteltönerWoofer130mm / 5"
MaterialMaterialMaterialeHexacon Kevlar Sandwich
Cross over frequencyÜbergangsfrequenzFrequenza di taglio3000 Hz
Horn ThroatHornDiametro tromba-
Membrane dimensionsMembranendimensionDimensione Membrana19mm / 0,75"
Max power inputBelastbarkeitPotenza massima (RMS)80 W RMS
EfficiencyWirkungsgradEfficienza90 dB
ImpedanceImpedanzImpedenza8 Ohm
Impedance linearizationImpedanzlinearisierungLinearizzazione d'impedenzaNo
MaterialMaterialMaterialeGold plated tellurium copperVergoldetes tellurium KupferRame tellurio placcato oro
DimensionsMaßenDimensioni1110 x 270 x 290 mm
43,7 x 10,6 x 11,5 in
WeightGewichtPeso14 kg
Packaging dimensionsVerpackungsmaßenDimensioni imballate126 x 44 x 44 cm
Loudspeakers per cartonLautsprecher per KartonPezzi pro cartone1
Packaging weightVerpackungsgewichtPeso imballate18 kg

Dimensions of the Fun 13

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Picture Gallery of the Fun 13


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.