{"id":4496,"date":"2024-05-18T22:20:11","date_gmt":"2024-05-18T19:20:11","guid":{"rendered":"https:\/\/boijs.fi\/?post_type=product&p=4496"},"modified":"2026-08-20T15:06:22","modified_gmt":"2026-08-20T12:06:22","slug":"half-four-passiivi","status":"publish","type":"product","link":"http:\/\/boijs.fi\/en\/product\/half-four-passiivi\/","title":{"rendered":"Half Four, 1 pc"},"content":{"rendered":"

The Boijs Half Four is a compact yet surprising speaker that combines incredibly deep bass response with top-tier clarity.
\nThe Half Four is perfect for small studios, home studios, the living room, or even as a companion for your computer.<\/p>\n

The 3D-printed enclosure is compact, rigid, and offers more internal volume compared to traditional solutions.
\nThe tweeter utilizes Boijs Audio's custom waveguide, creating a seamless transition between the bass and treble.
\nThe bass tuning is achieved with Boijs Audio\u2019s custom-designed port, which significantly reduces chuffing and allows for a lower tuning frequency at the same length.<\/p>\n

The speakers are designed and manufactured in Finland, right down to the 3D printing of the plastic parts.<\/p>\n

 <\/p>\n

Custom color made to order \u20ac475\/pc
\nWhen selecting a custom color, please enter the name of the color in the comments field at checkout.<\/strong><\/p>\n

 <\/p>\n

Available on backorder. Estimated delivery time is approximately 3 weeks.<\/p>\n

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 <\/p>\n

Three (3) year warranty from the date of purchase.<\/p>\n

Technical specifications<\/strong><\/p>\n

Design: 2-way hi-flow bass reflex<\/p>\n

Tweeter: 1\u2033 ring radiator with waveguide<\/p>\n

Woofer: 4\u2033<\/p>\n

Crossover frequency: 1500 Hz<\/p>\n

Frequency response: 45\u201340,000 Hz<\/p>\n

Impedance: 8 ohms<\/p>\n

Sensitivity: 84 dB<\/p>\n

Recommended amplifier power: 20\u201380W<\/p>\n

Dimensions (H x W x D): 230 x 135 x 165 mm \/ 9.1 x 5.3 x 6.5\u2033<\/p>\n

Wall mountable<\/p>\n

Rohs<\/p>\n

The user manual is available on our support page<\/strong><\/a><\/p>\n

 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

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\"\"<\/p>\n

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Custom color made to order +\u20ac50
\nWhen selecting a custom color, please enter the name of the color in the comments field at checkout.<\/strong><\/p>\n

Available on backorder. Estimated delivery time: approx. 3 weeks.<\/p>\n

Boijs Half Four is perfect for both the studio and the living room.<\/p>\n

 <\/p>","protected":false},"featured_media":6270,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[24],"product_tag":[],"class_list":["post-4496","product","type-product","status-publish","has-post-thumbnail","product_cat-kaiuttimet","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","taxable","shipping-taxable","purchasable","product-type-variable","has-default-attributes"],"yoast_head":"\nHalf Four, 1kpl • Boijs Audio Oy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/boijs.fi\/en\/product\/half-four-passiivi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Half Four - Boijs Audio\" \/>\n<meta property=\"og:description\" content=\"Kaiutin joka yll\u00e4tt\u00e4\u00e4 kuulijat! 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