Skip to content
Visaton loudspeakers and components · UK support · Trade enquiries welcome
{ "id":3963656601667, "title":"Visaton BF 37 8 Ohm, 1.5 Inch, Full Range Speaker","handle":"visaton-bf-37-8-ohm", "description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e3.7 cm (1.5\") full range speaker with a wide and balanced frequency response and very good low range reproduction. With powerful Neodymium driver and high membrane excursion limit, optimised for small vented enclosures\/enclosures with passive radiator. Suitable for applications where slim construction and good music and speech reproduction are requested.\u003c\/p\u003e\n\u003cp\u003e*) IP protection class for front side when built into a sealed enclosure (gluing of the loudspeaker might be necessary)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eTypical applications\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eFlat TVs\u003c\/li\u003e\n\u003cli\u003eInfo terminals\u003c\/li\u003e\n\u003cli\u003eother compact devices speech and music reproduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e", "published_at":"2019-08-29T10:21:10", "created_at":"2019-08-29T10:38:19", "vendor":"Visaton", "type":"Full-range driver", "tags":["8 Ohm","Impedance_8 Ohm","miniature","Size_1.5 inch","Type_Full Range","Visaton","Visaton Miniature Speakers"], "price":1095, "price_min":1095, "price_max":1095, "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":[29609864134723], "variants":[{ "id":29609864134723, "product_id":3963656601667, "product_handle":"visaton-bf-37-8-ohm", "title":"Default Title", "option1":"Default Title", "option2":null, "option3":null, "sku":"2261", "requires_shipping":true, "taxable":true, "featured_image":null,"image_id":null, "available":true, "name":"Visaton BF 37 8 Ohm, 1.5 Inch, Full Range Speaker - Default Title", "options":["Default Title"], "price":1095, "weight":0, "compare_at_price":null, "inventory_quantity":-29, "inventory_management":null, "inventory_policy":"deny", "inventory_in_cart":0, "inventory_remaining":-29, "incoming":false, "next_incoming_date":null, "taxable":true, "barcode":null}], "available":true,"images":["\/\/impactaudio.co.uk\/cdn\/shop\/products\/bf37_8_190827_1_700b.jpg?v=1567071525","\/\/impactaudio.co.uk\/cdn\/shop\/products\/bf37_4_tz_180116_59c29d73-36eb-4e04-821d-9906c199bf3c.gif?v=1567071539","\/\/impactaudio.co.uk\/cdn\/shop\/products\/bf37_8_fs_190827_20b.gif?v=1567071551","\/\/impactaudio.co.uk\/cdn\/shop\/products\/bf37_4_rd_180601_0.gif?v=1567071567"],"featured_image":"\/\/impactaudio.co.uk\/cdn\/shop\/products\/bf37_8_190827_1_700b.jpg?v=1567071525", "options":["Title"], "url":"\/products\/visaton-bf-37-8-ohm"}
  1. Home
  2. Visaton full-range drivers
  3. Visaton BF 37 8 Ohm, 1.5 Inch, Full Range Speaker

Visaton BF 37 8 Ohm, 1.5 Inch, Full Range Speaker

Previous Product | Next Product
BF 37 · 8 Ω · part 2261 — Product photo

Product photo · Enlarge image

BF 37 · 8 Ω · part 2261 — Product photoProduct photo BF 37 · 8 Ω · part 2261 — Rear view and connectionsRear view and connections BF 37 · 8 Ω · part 2261 — Response and impedanceResponse and impedance BF 37 · 8 Ω · part 2261 — Directivity patternDirectivity pattern BF 37 · 8 Ω · part 2261 — Dimension drawingDimension drawing

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

BF 37 · 8 Ω · part 2261 — Product photo

Product photo

Open original image
Part number: 2261

A long-excursion miniature driver for small vented or passive-radiator speakers.

Nominal size
3.7 cm / 1.5 inch
Impedance
8 Ω
Rated power
5 W (specified test)
Weight
33.1 g
Sensitivity
74 dB (1 W/1 m)
Connections
Solder lugs
ex VAT
£13.14 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 BF 37 uses a neodymium magnet and generous cone travel to support music and speech in compact equipment. It is designed for small vented enclosures or systems with a passive radiator. This 8 Ω version has its own motor and enclosure parameters, so use the matching data when designing the cabinet.

Typical applications

  • Compact music systems
  • Information terminals
  • Displays
Full specifications
BF 37 · 8 Ω
Rated power5 W — see test conditions below
Nominal impedance8 Ω
Frequency response (−10 dB)100-20000 Hz
Mean sound pressure level74 dB (1 W/1 m)
Excursion limit±3.4 mm
Resonance frequency fs155 Hz — confirm before enclosure design
Net weight33.1 g
D.C. resistance Rdc7.0 Ω
Mechanical Q factor Qms4.0
Electrical Q factor Qes1.1
Total Q factor Qts0.86
Equivalent volume Vas0.05 l
Effective piston area Sd6.2 cm²
Dynamically moved mass Mms1.0 g
Force factor Bxl2.56 Tm
Inductance of the voice coil L0.085 mH
TerminalsSolder lugs
Protective systemIPX4 — front side in a sealed enclosure
Rated-power testFree air; IEC 60268-2 adjusted broadband signal, 300–6000 Hz.
Dimensions and drawings
BF 37 · 8 Ω · part 2261 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow for the 37 mm frame and leave clearance for the solder lugs and moving surround. Check the basket profile and overall depth against the actual driver before cutting a close-fitting panel.

Seal the mounting joint into a sealed enclosure and protect the rear and terminals from moisture. IPX4 applies to the front only; adhesive and a front grille may be needed to complete the seal.

Use an amplifier suitable for the 8 Ω load and follow the polarity marks. Solder without prolonged heating, insulate the joints and secure the wires so they cannot touch the cone or pull on the lugs.

Use the matching impedance version’s parameters to develop a small vented or passive-radiator enclosure. Check cone travel at the intended level and use high-pass filtering where needed to limit excessive low-frequency excursion. Verify the tuning in the finished cabinet.

Downloads

Related Products