{"id":508536,"date":"2026-10-03T14:31:51","date_gmt":"2026-10-03T12:31:51","guid":{"rendered":"https:\/\/freakuence.nl\/product\/jk-acoustics-passive-5\/"},"modified":"2026-10-06T09:53:36","modified_gmt":"2026-10-06T07:53:36","slug":"jk-acoustics-passive-5","status":"publish","type":"product","link":"https:\/\/dev.freakuence.nl\/en\/product\/jk-acoustics-passive-5\/","title":{"rendered":"JK Acoustics Passive 5"},"content":{"rendered":"
\n
Description: Freakuence!<\/strong><\/span><\/div>\n
A homegrown classic! The JK Acoustics Passive 5 MKII lets vocals breathe with open space between the notes and a midrange that\u2019s flawless.<\/span><\/div>\n
Details<\/strong><\/span><\/div>\n
Serviced by the manufacturer. Top-notch!<\/span><\/div>\n
General description<\/strong><\/span><\/div>\n
The JK Acoustics Passive 5 is a Dutch-made preamplifier designed to clearly process signals from sources such as phono preamps (MM\/MC), CD players, tuners, and tape decks before further amplification. The JK Acoustics Passive 5 utilizes a discrete line amplifier and a phono stage with separate RIAA gain stages, ensuring accurate reproduction without unnecessary distortion. The Passive 5 is also available in a MkII version, in which the power supply is completely isolated from the phono stage for better isolation.<\/span><\/div>\n
The sound of the JK Acoustics Passive 5 is often described as dynamic and rich in detail, with a spacious stereo image that makes voices sound natural. Thanks to the ability to connect both MM and MC cartridges with adjustable impedance, the midrange remains clear and free of coloration. The Passive 5 ensures that micro-details within tracks are audible without becoming harsh, while larger dynamic contrasts are preserved.<\/span><\/div>\n
If you\u2019re looking for a preamp like the JK Acoustics Passive 5 for your setup, you can schedule a listening session to see for yourself how this model compares to other preamps. It might also be interesting to compare it with the Passive 10 or Passive 75, or to discuss trade-in options. That way, you can find out if the JK Acoustics Passive 5 is exactly what you\u2019re looking for.<\/span><\/div>\n
JK Acoustics Passive 5 Specifications<\/strong><\/span><\/div>\n
Output voltage: 8 V at 0.01% THD Output impedance: 47 \u03a9 Frequency range: DC to 100 kHz (within \u00b12 dB) RIAA correction accuracy: < Deviation of 0.5 dB Input impedance (Tuner\/CD\/MM): 47 k\u03a9 Input impedance (MC): adjustable from 3 to 33 \u03a9 Input sensitivity (MM): approx. 2 mV Input sensitivity (MC): approx. 0.15 mV AUX input sensitivity: 150 mV Signal-to-noise ratio (Tuner\/CD\/Tape): 100 dB Signal-to-noise ratio (MM): 87 dB (relative to 10 mV, with 0.001% THD) Signal-to-noise ratio (MC): 74 dB (relative to 1 mV, with 0.01% THD) Channel separation at 1 kHz at maximum output (8 V): Phono: \u221277 dB, Tuner\/Tape\/CD: \u221290 dB Total harmonic distortion at 1 V output: < 0.001% Outputs: AC output (for connection to an amplifier with a DC input), DC output (for an amplifier with an AC input) Preamplifier enclosure dimensions: 250 \u00d7 44 \u00d7 300 mm (W\u00d7H\u00d7D) Power supply unit dimensions: 50 \u00d7 50 \u00d7 300 mm (W\u00d7H\u00d7D) Preamplifier weight: 2.5 kg Power supply unit weight: 0.5 kg<\/span><\/div>\n
Background Information<\/strong><\/span><\/div>\n
The JK Acoustics Passive 5 was designed with a focus on pure sound reproduction, with contributions from engineers such as Jan Klaessen. The design combines high-quality components with craftsmanship. The enclosure is crafted from carefully selected, resonance-free materials, which contributes to the sound quality. Internal wiring is made of oxygen-free copper for optimal signal transmission. Production takes place in the Netherlands, where local suppliers provide many of the materials, ensuring a high standard of quality. This combination results in a speaker that delivers natural tones and detailed sound.<\/span><\/div>\n
Brand History<\/strong><\/span><\/div>\n
JK Acoustics was founded in the Netherlands and has focused on designing and developing high-quality audio solutions since its inception. The company started as a small workshop and has grown into a recognized name in its field. The founders of JK Acoustics were originally musicians and sound engineers, which gave their products a strong foundation in realistic sound reproduction. Their first products were primarily intended for the recording environment. Over the years, JK Acoustics has developed a range of products based on extensive technical knowledge and expertise. These products are characterized by their durable materials and extreme precision in manufacturing. The company has always focused on delivering solutions that meet the high standards of industry professionals, with accuracy and reliability at the core. Today, JK Acoustics is regarded as a trusted partner within its niche markets.<\/span><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Description: Freakuence! A homegrown classic! The JK Acoustics Passive 5 MKII lets vocals breathe with open space between the notes and a midrange that\u2019s flawless. Details Serviced by the manufacturer. Top-notch! General description The JK Acoustics Passive 5 is a Dutch-made preamplifier designed to clearly process signals from sources such as phono preamps (MM\/MC), CD […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"product_brand":[],"product_cat":[984,2470,1041],"product_tag":[487],"class_list":["post-508536","product","type-product","status-publish","product_cat-amplifiers","product_cat-passive-preamplifiers","product_cat-preamplifiers","product_tag-used-en","pa_kleur-zwart","pa_merken-jk-acoustics","first","instock","sold-individually","purchasable","product-type-simple"],"acf":[],"yoast_head":"\nJK Acoustics Passive 5 | Freakuence!<\/title>\n<meta name=\"description\" content=\"Experience top quality with the JK Acoustics Passive 5 for powerful audio \u2713 New & Used Hi-Fi \u2713 Customer Rating: 4.9 out of 5 \u2713 Trade-in \u2713 Listening Session\" \/>\n<meta name=\"robots\" content=\"noindex, follow, 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