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{ "id":1676668895299, "title":"Visaton DSM 25 FFL 8 Ohm, 1 Inch, High-End Titanium Dome Tweeter","handle":"visaton-dsm-25-ffl-8-ohm-25mm-1ins-high-end-titanium-dome-driver", "description":"\u003cp\u003e\r\n\tFor the high range above 2000 HzDSM 25 FFL Art.No. 1153. 8 Ohms. 25mm\/1ins High-end titanium dome driver for the high-range above 2000 Hz. Due to the enormously strong and ultra-light titanium dome and in conjunction with a highly damped sypronyle surround, linear frequency response and no partial oscillations. Due to the enormously high magnetic flux in the ferrofluid-filled air gap a high efficiency and high power handling can be realised. Applied to : Atlas Compact MK III, vib Extra GF, Casablanca MK IV. Accessories: Protective grille SG DSM 25 (ArtNo. 1132), Compensating magnet KM 80 (Art.No. 1309)\u003c\/p\u003e\r\n\u003cp\u003e\r\n\t \u003c\/p\u003e\r\n\u003ctable bgcolor=\"#000000\" border=\"0\" cellpadding=\"5\" cellspacing=\"1\" width=\"100%\"\u003e\r\n\t\u003ctbody\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(0, 0, 0); \" width=\"24%\"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eRated Power\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(0, 0, 0); \" width=\"76%\"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e120 Watt (via crossover network 12 dB\/Oct. as of 4000 Hz) \/ 80 Watt (via crossover network 12 dB\/Oct. as of 2000 Hz)\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(0, 0, 0); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e\u003cstrong\u003eMaximum power\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(0, 0, 0); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e180 Watt (via crossover network 12 dB\/Oct. as of 4000 Hz) \/ 140 Watt (via crossover network 12 dB\/Oct. as of 2000 Hz)\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(0, 0, 0); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eImpedance\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(0, 0, 0); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e8 Ohm\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\tSound pressure level\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t-\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\tSensitivity\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t-\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eFrequency response (-10 dB)\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e1000 - 30000 Hz\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eMean sound pressure level\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e92 dB (1 W \/ 1m)\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\tMax sound pressure level\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t-\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\tMaximum cone displacement\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t-\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eResonance frequency\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e1900 Hz\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eMagnetic induction\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e1,7 Tesla\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eMagnetic flux\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e425 micro Weber\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\tHeight of front pole-plate\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t-\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eVoice coil diameter\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e25 mm\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\tHeight of winding\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t-\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eCutout diameter\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e80 mm\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\tLength of cable\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t-\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr bgcolor=\"#0083C7\"\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003eNet Weight\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd class=\"style11\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(255, 255, 255); \"\u003e\r\n\t\t\t\t\u003cspan class=\"style11\" style=\"color: rgb(255, 255, 255); \"\u003e0,53 kg\u003c\/span\u003e\n\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\u003c\/tbody\u003e\r\n\u003c\/table\u003e", "published_at":"2018-10-11T14:38:05", "created_at":"2018-10-11T14:38:05", "vendor":"Visaton", "type":"Tweeter", "tags":["Impedance_8 Ohm","Size_1 inch","Type_Tweeters","Visaton Hifi Drive Units: Tweeters"], "price":6695, "price_min":6695, "price_max":6695, "price_varies":false, "compare_at_price":null, "compare_at_price_min":0, "compare_at_price_max":0, "compare_at_price_varies":true, "all_variant_ids":[15301287870531], "variants":[{ "id":15301287870531, "product_id":1676668895299, "product_handle":"visaton-dsm-25-ffl-8-ohm-25mm-1ins-high-end-titanium-dome-driver", "title":"Default Title", "option1":"Default Title", "option2":null, "option3":null, "sku":"1153", "requires_shipping":true, "taxable":true, "featured_image":null,"image_id":null, "available":true, "name":"Visaton DSM 25 FFL 8 Ohm, 1 Inch, High-End Titanium Dome Tweeter - Default Title", "options":["Default Title"], "price":6695, "weight":1000, "compare_at_price":null, "inventory_quantity":-4, "inventory_management":null, "inventory_policy":"deny", "inventory_in_cart":0, "inventory_remaining":-4, "incoming":false, "next_incoming_date":null, "taxable":true, "barcode":null}], "available":true,"images":["\/\/impactaudio.co.uk\/cdn\/shop\/products\/2318f2ce5278c7d0bf8f3bf53e7ed628.jpg?v=1539265085","\/\/impactaudio.co.uk\/cdn\/shop\/products\/760c047362af07fce87bdc729fc7e49d.jpg?v=1539265085"],"featured_image":"\/\/impactaudio.co.uk\/cdn\/shop\/products\/2318f2ce5278c7d0bf8f3bf53e7ed628.jpg?v=1539265085", "options":["Title"], "url":"\/products\/visaton-dsm-25-ffl-8-ohm-25mm-1ins-high-end-titanium-dome-driver"}
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Visaton DSM 25 FFL 8 Ohm, 1 Inch, High-End Titanium Dome Tweeter

DSM 25 FFL · 8 Ω · part 1153 — Product photo

Product photo · Enlarge image

DSM 25 FFL · 8 Ω · part 1153 — Product photo Product photo DSM 25 FFL · 8 Ω · part 1153 — Rear view and connections Rear view and connections DSM 25 FFL · 8 Ω · part 1153 — Dimension drawing Dimension drawing DSM 25 FFL · 8 Ω · part 1153 — Response and impedance Response and impedance DSM 25 FFL · 8 Ω · part 1153 — Directivity pattern Directivity pattern DSM 25 FFL · 8 Ω · part 1153 — Cumulative spectral decay Cumulative spectral decay

Product photographs and manufacturer drawings. Images are not to scale.

DSM 25 FFL · 8 Ω · part 1153 — Product photo

Product photo

Open original image
Part number: 1153

A 25 mm titanium dome tweeter for the range above 2000 Hz in high-end hi-fi speakers.

Nominal size
25 mm / 1 inch
Impedance
8 Ω
Rated power
80 W (12 dB/oct. high-pass from 2000 Hz)
Cut-out
80 mm
Sensitivity
90 dB (1 W/1 m)
Resonance
1450 Hz
ex VAT
£80.34 inc VAT
Maximum quantity available reached.

Stock and dispatch
Selected products are held in UK stock; other lines are sourced to order. Dispatch timing depends on the product and quantity.

Delivery information. Need it for a specific date? Ask us.

Quantity discounts

Description

The DSM 25 FFL uses a strong, ultra-light titanium dome with a heavily damped surround, giving a linear response free of partial oscillations, while high magnetic flux in the ferrofluid-filled gap allows high efficiency and power handling. This 8 Ω version is rated at 80 W with a 12 dB/oct. high-pass from 2000 Hz, gives 90 dB (1 W/1 m) and resonates at 1450 Hz.

Typical applications

  • High-end hi-fi systems
  • Tweeter for multi-way hi-fi speakers
Full specifications
DSM 25 FFL · 8 Ω
Rated power80 W (12 dB/oct. high-pass from 2000 Hz)
Maximum power140 W (12 dB/oct. high-pass from 2000 Hz)
Nominal impedance8 Ω
Frequency response (−10 dB)900–30000 Hz
Mean sound pressure level90 dB (1 W/1 m)
Opening angle (-6 dB)138°/8000 Hz
Resonance frequency fs1450 Hz
Magnetic induction1.7 T
Magnetic flux425 µWb
Height of front pole-plate2.5 mm
Voice coil diameter25 mm
Height of winding2 mm
Cut-out80 mm
Net weight0.53 kg
D.C. resistance Rdc6.1 Ω
Mechanical Q factor Qms1.83
Electrical Q factor Qes1.87
Total Q factor Qts0.92
Effective piston area Sd4.9 cm²
Terminals4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-)
Dimensions and drawings
DSM 25 FFL · 8 Ω · part 1153 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow an 80 mm panel opening. The faceplate is 96.3 mm across the flats with clipped corners (110 mm across the corners), and it offers a choice of fixing patterns: four 5 mm holes at the corners on a 95 mm circle, or four alternative holes on the axes 67.2 mm apart. Behind the panel allow about 24 mm for the 70 mm rear housing, plus room for the terminals and the wiring. Mark whichever pattern you use from the unit itself, and confirm the depth available before committing to a slim cabinet.

Mount it on a rigid baffle with a continuous seal between the faceplate and the panel, tighten the fixings evenly and only enough to seal so the faceplate is not distorted, and keep the dome clear of any grille. Connect to the 4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-) blade terminals with matching push-on connectors and observe polarity; the two blade widths identify it. The power ratings apply only with a 12 dB/oct. high-pass filter from 2000 Hz, so feed it through the system crossover or a high-pass filter that gives at least that protection; never connect it directly to a full-range signal. A dome this small depends on that filter to survive, so keep the slope steep and do not cross it over lower than the rating allows. Use an amplifier suitable for the 8 Ω load.

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