{"id":30437,"date":"2026-10-06T09:12:03","date_gmt":"2026-10-06T09:12:03","guid":{"rendered":"https:\/\/kzcomponentes.com\/?p=30437"},"modified":"2026-10-17T18:57:10","modified_gmt":"2026-10-17T18:57:10","slug":"kz-castor-vs-castor-pro","status":"publish","type":"post","link":"https:\/\/kzcomponentes.com\/en\/blog\/kz-castor-vs-castor-pro\/","title":{"rendered":"KZ Castor vs Castor Pro: differences and which to choose"},"content":{"rendered":"<p class=\"wp-block-paragraph\">The <a href=\"\/en\/product\/kz-castor\/\">KZ Castor<\/a> and the <a href=\"\/en\/product\/kz-castor-pro\/\">KZ Castor Pro<\/a> share an unusual idea: two dynamic drivers per side and four switches to tune the sound. The Pro is the revision of the original model. Here is what changes.<\/p>\n\n\n\n<div class=\"kz-box kz-box--resumen\"><p class=\"kz-box__title\">In short<\/p><ul><li>Both have a <strong>dual dynamic driver<\/strong> and <strong>4 switches<\/strong> per earphone.<\/li><li>The <strong>Castor<\/strong> combines an 8 mm driver with a 10 mm one; the <strong>Castor Pro<\/strong>, two 10 mm drivers.<\/li><li>Both are sold in a <strong>Harman<\/strong> (balanced) and a <strong>Bass<\/strong> (more bass) version.<\/li><\/ul><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Comparison table<\/h2>\n\n\n\n<div class=\"kz-table-wrap\"><table class=\"kz-table\"><thead><tr><th><\/th><th>KZ Castor<\/th><th>KZ Castor Pro<\/th><\/tr><\/thead><tbody><tr><th>Drivers per side<\/th><td>2 dynamics: 8 mm + 10 mm<\/td><td>2 dynamics, 10 mm<\/td><\/tr><tr><th>Switches<\/th><td>4 (2 bass, 2 treble)<\/td><td>4 (2 bass, 2 mids and treble)<\/td><\/tr><tr><th>Frequency response<\/th><td>20\u201340000 Hz<\/td><td>20\u201340000 Hz<\/td><\/tr><tr><th>Sensitivity (Harman)<\/th><td>105 \u00b1 3 dB<\/td><td>101\u2013104 dB<\/td><\/tr><tr><th>Sensitivity (Bass)<\/th><td>103 \u00b1 3 dB<\/td><td>100\u2013103 dB<\/td><\/tr><tr><th>Impedance (Harman)<\/th><td>31\u201335 \u03a9<\/td><td>22\u201340 \u03a9<\/td><\/tr><tr><th>Impedance (Bass)<\/th><td>16\u201320 \u03a9<\/td><td>16\u201322 \u03a9<\/td><\/tr><tr><th>Shell<\/th><td>\u2014<\/td><td>Zinc alloy<\/td><\/tr><tr><th>Cable<\/th><td>Flat, 120 \u00b1 5 cm<\/td><td>Flat OFC, 120 \u00b1 5 cm<\/td><\/tr><tr><th>Connector<\/th><td>2-pin (Pin C)<\/td><td>2-pin (Pin C)<\/td><\/tr><\/tbody><\/table><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Data from the official KZ product pages (kz-audio.com).<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Two dynamic drivers<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In the Castor, one driver handles the bass (20 to 200 Hz, according to KZ) and the other the mids and treble. The Castor Pro keeps the split but fits a larger mid\/treble driver: both become 10 mm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How the switches work<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Each earphone has four switches that you move with the included tool. For the Castor Pro, KZ details it like this: 1 raises the bass by 1 dB; 1 and 2, by 2 dB; 3 raises mids and treble by 1 dB; 3 and 4, by 2 dB. On the Castor, two switches act on the bass and two on the treble, for up to 16 combinations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Harman or Bass version<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Both models are sold in two starting tunings. The Harman version follows the Harman reference curve, which is more balanced. The Bass version starts with boosted bass. The switches adjust the sound from that base, so it is worth choosing the version to suit your taste.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prices<\/h2>\n\n\n<div class=\"woocommerce columns-2\"><ul class=\"products columns-2\">\n<li class=\"product type-product post-27967 status-publish first instock product_cat-auriculares-hi-fi-audio-pro product_cat-auriculares-1dd product_cat-kz product_cat-auriculares-estudio-escenario has-post-thumbnail taxable shipping-taxable purchasable product-type-variable has-default-attributes\">\n\t<a href=\"https:\/\/kzcomponentes.com\/en\/product\/kz-castor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><div class=\"woocommerce-image__wrapper\"><a href=\"https:\/\/kzcomponentes.com\/en\/product\/kz-castor\/\" title=\"KZ CASTOR \u2013 Dual Dynamic Driver In-Ear Monitors\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><div class=\"shoptimizer-plp-carousel-container\"><div class=\"shoptimizer-plp-image-wrapper\"><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"KZ Castor Harman version without microphone, pair of wired in-ear earphones\" srcset=\"https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono-300x300.jpg 300w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono-800x800.jpg 800w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono-150x150.jpg 150w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono-768x768.jpg 768w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono-12x12.jpg 12w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono-990x990.jpg 990w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono-441x441.jpg 441w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono-100x100.jpg 100w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-version-harman-sin-microfono.jpg 1000w\" sizes=\"(max-width: 360px) 147px, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\n\t<\/div><\/div><\/a><\/div><div class=\"woocommerce-card__header\">\t\t\t\t\t<p class=\"product__categories\"><a href=\"https:\/\/kzcomponentes.com\/en\/product-category\/kz\/auriculares-hi-fi-audio-pro\/\" rel=\"tag\">Hi-Fi &amp; pro audio IEMs<\/a>, <a href=\"https:\/\/kzcomponentes.com\/en\/product-category\/kz\/por-drivers\/auriculares-1dd\/\" rel=\"tag\">Dynamic drivers<\/a>, <a href=\"https:\/\/kzcomponentes.com\/en\/product-category\/kz\/\" rel=\"tag\">KZ<\/a>, <a href=\"https:\/\/kzcomponentes.com\/en\/product-category\/kz\/auriculares-estudio-escenario\/\" rel=\"tag\">Musicians &amp; stage<\/a><\/p>\t\t\t\t<div class=\"woocommerce-loop-product__title\"><a tabindex=\"0\" href=\"https:\/\/kzcomponentes.com\/en\/product\/kz-castor\/\" aria-label=\"KZ CASTOR \u2013 Dual Dynamic Driver In-Ear Monitors\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">KZ CASTOR \u2013 Dual Dynamic Driver In-Ear Monitors<\/a><\/div>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\"><bdi>43,95&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">\u20ac<\/span><\/bdi><\/span><\/span>\n<div id=\"wc-stripe-bnpl-shop-msg-27967\" class=\"wc-stripe-bnpl-shop-message\"><\/div><\/a><a href=\"https:\/\/kzcomponentes.com\/en\/product\/kz-castor\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_27967\" data-quantity=\"1\" class=\"button product_type_variable add_to_cart_button\" data-product_id=\"27967\" data-product_sku=\"897565-02-1-1-11\" aria-label=\"Select options for \u201cKZ CASTOR \u2013 Auriculares in-ear con dos drivers din\u00e1micos\u201d\" rel=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Select options<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_27967\" class=\"screen-reader-text\">\n\t\tThis product has multiple variants. The options may be chosen on the product page\t<\/span>\n<\/div><\/li>\n<li class=\"product type-product post-28027 status-publish last instock product_cat-auriculares-hi-fi-audio-pro product_cat-auriculares-1dd product_cat-kz product_cat-auriculares-estudio-escenario has-post-thumbnail taxable shipping-taxable purchasable product-type-variable has-default-attributes\">\n\t<a href=\"https:\/\/kzcomponentes.com\/en\/product\/kz-castor-pro\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><div class=\"woocommerce-image__wrapper\"><a href=\"https:\/\/kzcomponentes.com\/en\/product\/kz-castor-pro\/\" title=\"KZ CASTOR PRO \u2013 In-Ear Monitors with Dual 10 mm Drivers\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><div class=\"shoptimizer-plp-carousel-container\"><div class=\"shoptimizer-plp-image-wrapper\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"KZ Castor Pro Harman version without microphone, pair of wired in-ear earphones\" srcset=\"https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt-300x300.jpg 300w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt-800x800.jpg 800w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt-150x150.jpg 150w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt-768x768.jpg 768w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt-12x12.jpg 12w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt-990x990.jpg 990w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt-441x441.jpg 441w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt-100x100.jpg 100w, https:\/\/kzcomponentes.com\/wp-content\/uploads\/2026\/10\/kz-castor-pro-version-harman-sin-microfono-gpt.jpg 1000w\" sizes=\"(max-width: 360px) 147px, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\n\t<\/div><\/div><\/a><\/div><div class=\"woocommerce-card__header\">\t\t\t\t\t<p class=\"product__categories\"><a href=\"https:\/\/kzcomponentes.com\/en\/product-category\/kz\/auriculares-hi-fi-audio-pro\/\" rel=\"tag\">Hi-Fi &amp; pro audio IEMs<\/a>, <a href=\"https:\/\/kzcomponentes.com\/en\/product-category\/kz\/por-drivers\/auriculares-1dd\/\" rel=\"tag\">Dynamic drivers<\/a>, <a href=\"https:\/\/kzcomponentes.com\/en\/product-category\/kz\/\" rel=\"tag\">KZ<\/a>, <a href=\"https:\/\/kzcomponentes.com\/en\/product-category\/kz\/auriculares-estudio-escenario\/\" rel=\"tag\">Musicians &amp; stage<\/a><\/p>\t\t\t\t<div class=\"woocommerce-loop-product__title\"><a tabindex=\"0\" href=\"https:\/\/kzcomponentes.com\/en\/product\/kz-castor-pro\/\" aria-label=\"KZ CASTOR PRO \u2013 In-Ear Monitors with Dual 10 mm Drivers\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">KZ CASTOR PRO \u2013 In-Ear Monitors with Dual 10 mm Drivers<\/a><\/div>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\"><bdi>61,95&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">\u20ac<\/span><\/bdi><\/span><\/span>\n<div id=\"wc-stripe-bnpl-shop-msg-28027\" class=\"wc-stripe-bnpl-shop-message\"><\/div><\/a><a href=\"https:\/\/kzcomponentes.com\/en\/product\/kz-castor-pro\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_28027\" data-quantity=\"1\" class=\"button product_type_variable add_to_cart_button\" data-product_id=\"28027\" data-product_sku=\"897565-02-1-1-21\" aria-label=\"Select options for \u201cKZ CASTOR PRO \u2013 Auriculares in-ear con dos drivers de 10 mm\u201d\" rel=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Select options<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_28027\" class=\"screen-reader-text\">\n\t\tThis product has multiple variants. The options may be chosen on the product page\t<\/span>\n<\/div><\/li>\n<\/ul>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Which to choose<\/h2>\n\n\n\n<div class=\"kz-cols\"><div class=\"kz-box\"><p class=\"kz-box__title\">KZ Castor<\/p><ul><li>You want switch tuning at the lowest price.<\/li><li>The original model is enough for you.<\/li><\/ul><p><a class=\"kz-btn\" href=\"\/en\/product\/kz-castor\/\">See KZ Castor<\/a><\/p><\/div><div class=\"kz-box\"><p class=\"kz-box__title\">KZ Castor Pro<\/p><ul><li>You want the revised version with two 10 mm drivers.<\/li><li>You prefer a zinc alloy shell.<\/li><\/ul><p><a class=\"kz-btn\" href=\"\/en\/product\/kz-castor-pro\/\">See KZ Castor Pro<\/a><\/p><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<div class=\"kz-faq\"><details><summary>Do I need to change the switches?<\/summary><p>No. Out of the box they play with their base tuning. The switches are for anyone who wants to adjust the bass or treble.<\/p><\/details><details><summary>Can I go from Harman to Bass with the switches?<\/summary><p>Not exactly. They are two different factory tunings; the switches make small adjustments to each.<\/p><\/details><details><summary>Do they work with Bluetooth adapters?<\/summary><p>Yes, both use Pin C: <a href=\"\/en\/product\/kz-an01\/\">KZ AN01<\/a>, <a href=\"\/en\/product\/kz-ae01\/\">KZ AE01<\/a> and <a href=\"\/en\/product\/kz-az09\/\">KZ AZ09<\/a> in the Pin C version.<\/p><\/details><\/div>\n\n\n\n<div class=\"kz-box kz-box--relacionados\"><p class=\"kz-box__title\">Keep reading<\/p><ul><li><a href=\"\/en\/blog\/kz-tuning-switches\/\">KZ tuning switches: what each position does<\/a><\/li><li><a href=\"\/en\/blog\/kz-edx-range-comparison\/\">KZ EDX Pro, EDX Pro X, EDX Ultra and EDX Lite: a guide to the EDX range<\/a><\/li><li><a href=\"\/en\/blog\/best-kz-earphones-under-50-euros\/\">Best KZ earphones under \u20ac50<\/a><\/li><\/ul><\/div>\n\n\n\n<div class=\"kz-box kz-box--cta\"><p>Every KZ Componentes order comes with a 3-year warranty, 30-day returns and support from our team in Spain. Torn between models? <a href=\"\/en\/customer-help\/\">Write to us<\/a> and we will help you choose.<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>KZ Castor vs Castor Pro: two dynamic drivers and tuning switches in both. What changes in drivers, shell and the Harman and Bass versions.<\/p>","protected":false},"author":1,"featured_media":31961,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_opengraph-image":"","_yoast_wpseo_opengraph-image-id":"","_yoast_wpseo_twitter-image":"","_yoast_wpseo_twitter-image-id":"","kz_revisado":"","kz_respuesta":"","footnotes":""},"categories":[266],"tags":[],"kz_perfil":[308],"kz_modelo":[328,312],"class_list":["post-30437","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-comparativas","kz_perfil-escuchar-musica","kz_modelo-kz-castor","kz_modelo-kz-castor-pro"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.7-RC2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>KZ Castor vs Castor Pro: diferencias - KZ Componentes<\/title>\n<meta name=\"description\" content=\"KZ Castor vs Castor Pro: dos drivers din\u00e1micos e interruptores de ajuste en ambos. 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