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    Dayton Audio CF120-4 4-1/2" Woven Carbon Fiber Midwoofer 4 Ohms

    € 33,84€ 40,95 Out of stock: delivery time is 1 week
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    Product description

    Dayton Audio's CF120-4 4-1/2" midwoofer utilizes a high-tech carbon fiber cone to create its own perfect combination of visual aesthetics and uncompromising audio performance.

     

    Highlights

    • Pincushion cast aluminum frame
    • Ultra-light and stiff woven carbon fiber cone
    • Copper cap and large magnet provide a low distortion motor structure
    • Durable and potent 1" diameter hi-temp 2-layer voice coil
    • Black anodized aluminum vented former increases heat dissipation and power handling
    • Flat extended frequency response to 15,000 Hz
    • Great for small satellite 2-way, MTM designs, or high-end car audio applications

     

    Product details

    Dayton Audio CF120-4 4-1/2" Woven Carbon Fiber Midwoofer 4 Ohms

     

    Take one longing glance at the Dayton Audio CF120-4 4-1/2" midwoofer's carbon fiber cone, cast frame, and large magnet, and you'll realize performance, not cost, was the primary development criteria. Delve further into the product details, and the flat extended frequency response, strong motor, and well-balanced parameters will confirm your thoughts. This beautiful driver looks awesome -- and performs as well as it looks!

    Specifications

    Article number
    CF120-4
    Woofer Type
    Midwoofer
    Nominal Diameter
    4.50"
    Power Handling (RMS)
    30 watts
    Power Handling (max)
    60 watts
    Impedance (Z)
    4 ohms
    Sensitivity
    89.1 dB 2.83V/1m
    Frequency Response
    50 - 15,000 Hz
    Voice Coil Diameter
    25.4 mm
    DC Resistance (Re)
    3.4 ohms
    Voice Coil Inductance (Le)
    0.45 mH @ 1 kHz
    Resonant Frequency (Fs)
    53.2 Hz
    Mechanical Q (Qms)
    1.89
    Electromagnetic Q (Qes)
    0.32
    Total Q (Qts)
    0.28
    Diaphragm Mass Inc. Airload (Mms)
    6.9g
    Mechanical Compliance of Suspension (Cms)
    1.31 mm/N
    Surface Area of Cone (Sd)
    51.5 cm²
    Volume of Displacement (Vd)
    20.6 cm³
    BL Product (BL)
    4.94 Tm
    Compliance Equivalent Volume (Vas)
    4.87 liters
    Maximum Linear Excursion (Xmax)
    3.5 mm
    Cone / Diaphragm Material
    Carbon Fiber Composite
    Surround Material
    Rubber
    Voice Coil Wire Material
    Copper
    Voice Coil Former
    Aluminum
    Basket / Frame Material
    Cast Aluminum
    Magnet Material
    Ferrite
    Overall Outside Diameter
    5" ; Across flats 4.5"
    Overall Depth
    2.25"
    Baffle Cutout Diameter
    3.75"
    Bolt Circle Diameter
    4.5625"
    # Mounting Holes
    4
    Sealed Volume
    0.02 ft.³
    Sealed F3
    153 Hz
    Vented Volume
    0.06 ft.³
    Vented F3
    89 Hz

    Reviews

    5 from 5Based on 2 reviews
    Review this product
    5 van 5
    It has clear sound and a surprisingly deep bass for such a small speaker. The carbon fiber looks beautiful in my red cabinet.
    I’m very pleased with the quality.
    By Ricardo M. on 10 December 2020
    5 van 5
    Firstly, i want to thank Tom from SoundImports for his fantastic advice and turnaround service during the Christmas season, which ensured i got these midranges ASAP.
    I have some original Def Tech Mythos II , which i have owned since 2002 and use as a front stage accross my HT system. One of the midranges blew and i was not able to source an original replacement.
    Having said that and mindful that the CF 120's are 4 ohm, and not exactly 100% matched in specs, I still decided to pull the trigger and buy 6 to replace all the old drivers with new ones. Now, I drive the Mythos with Denon POA4400 mono blocks... so they are not short of power but I have to admit I always felt they were a little 'hang back' in their presentation, especially when i compare to my Infinity Kappa's in the midrange (which are also rather hungry). Anyway, i started the replacment on the blown unit and simply hooked up the drivers in serial as the internal factory arrangement is parallel. I tested that speaker and immediately could tell a difference in comparison to the other channel with original drivers - and this, without running in. For me, it was clear the soundstage was wider, clearer and more robust. Simple as that. I proceeded to replace the other 4 midranges for the LF and Centre and could not be happier. Not everything went witout a hitch. If anyone wants these for Mythos, they are a facia match but the magnet is slightly larger in circumference to the original which makes it 'sit' about 1-2mm higher into the aluminium back enclosure. This means that the screws attaching the fascia of the speaker to the back enclosure in the middle section are hard to get back in and ever so slighlty not a straight fascia when all screws are in.... this should be sorted by getting slightly longer screws in the same size and potentially putting a gasget around the entire fascia mount to raise it by the required 1-1/2mm. However, in the end this is not a deal breaker. So all i can say is that i am very happy with these little guys given the small amount of choice at this size and, that arranging them in series for 8ohm has actually in my case, improved the Mythos II sonically. I was skeptical before going ahead but have no regrets. Highly recommended.
    By Melb2Kiel on 4 January 2018

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    CF120-4 4-1/2" Woven Carbon Fiber Midwoofer 4 Ohms
    € 33,84
    € 40,95
    CF120-4 4-1/2" Woven Carbon Fiber Midwoofer 4 Ohms
    0 In stock: delivery time is 1 week
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