The Silver Z-Cap MKP line from Jantzen Audio is a premium series of metallized polypropylene foil capacitors, engineered for high-performance audio crossover networks. These capacitors deliver exceptional sonic clarity, low ESR, and minimal dielectric absorption, making them ideal for high-end loudspeaker applications.

Key Features:

Capacitance Range: 0.10 µF to 22.00 µF
Tolerance: ±2% for precise frequency response
Voltage Rating: 800 VDC (standard) / 1200 VDC (selected values)
Construction: Metallized polypropylene foil for long-term stability and low losses
Terminals: Tinned, solid wire leads for secure soldering
Applications: High-end speaker crossovers, especially in tweeter and midrange paths
Performance: Transparent, open sound with fast transient response

Why It Matters:
The Silver Z-Cap MKP is designed for audiophiles who demand exacting quality. With its tight tolerance and high-voltage capability, it ensures detail and consistency in signal handling, even at dynamic peaks.

PRODUCT FEATURE
Where the Superior Z-Cap is made with pure copper lead-wires, the Silver Z-Cap is made with pure silver lead-wires, changing the sound characteristics of the capacitor slightly.
Highly recommended for tweeters and mid-range application for high-end passive speakers and as coupling capacitors in tube and power amplifiers.
The Silver Z-Cap is a metalized polypropylene foil capacitor but made as special construction we call a “Super MPK Capacitor”.
Super MKP capacitors are made with a double lane of metalized polypropylene foil, hence a double foil construction.
By using special winding machines and winding techniques, two capacitors are connected in series within one capacitor housing,
When making this type of capacitor you therefore need 4 times the foil used in standard type metalized polypropylene foil capacitors.
Compared to standard type metalized polypropylene foil capacitors, the Superior Z-Cap is on a higher audiophile level, where even finest nuance improvements can be heard.
An extremely well made and precise MKP capacitor with a tolerance on capacitance of only +/- 2%.
We do not fill our capacitors with any dielectric fluid, which eliminates all risks of evaporation or leakage that can shorten longevity and quality of the capacitor.

TECHNICAL DATA
Type: Non-polarized super MKP (double foil lanes)
Dielectric: Polypropylene film
Construction: Double-layer round tubular type axial leads
Winding: Bifilar extended metalized foil
Test Voltage: 150% rated voltage
Electrodes: Aluminum metallized vacuum deposited
Contacts: Non-inductive zinc thermally sprayed extended film
Coating: Silver plastic tape wrapped black resin, sealed in an anodized aluminum tube
Leads: Pure silver
Voltage rating: 1200 VDC / 800 VAC from 0.1 μF to 0.39μF
800 VDC / 630 VAC from 0.47 μF to 22μF
Capacitance tolerance: ±2% (on nominal value)
Dielectric constant: Non-polar dielectric
Dissipation factor: Extremely low
Dielectric absorption factor: ＜0.5% @20℃
Dielectric thickness: PB=6μm
Equivalent series resistance: Extremely low
Self-inductance: 0 nH
Insulation resistance: ＞100.000 MΩ@20℃
Temperature coefficient: -200℃x10-6/℃
Temperature Range: -55℃to +85℃
Metal layer thickness: PB=0.4μm
Metal layer conductivity: PB =2.5 Ω/cm2

Summary Table:

Capacitor Series	Sound Quality	Tolerance	Voltage	Price Tier	Best For
Silver Z-Cap	Ultra-detailed, neutral	±2%	800–1200 VDC	$$$$	High-end audiophile systems
Superior Z-Cap	Clean, dynamic	±2%	800 VDC	$$$	Upper-mid-tier crossovers
Alumen Z-Cap	Warm, natural	±2%	800 VDC	$$$	Natural sound, vocals, acoustic
Standard Z-Cap	Balanced, decent	±5%	400 VDC	$$	Mid-range crossovers
Cross Cap	Basic but functional	±5%	400 VDC	$	Budget builds, OEM, DIY

Bottom Line:

Silver Z-Cap is best when you want ultimate clarity and transparency.
Superior Z-Cap offers a solid high-end experience without the top-tier price.
Alumen Z-Cap is perfect for warm, rich tone lovers.
Standard Z-Cap and Cross Cap are solid picks for cost-conscious builds.

Silver Z-Cap

Jantzen Audio Silver Z-Cap MKP 0,10 – 22,00 µF +/- 2% 800 – 1200 VDC Metalized Polypropylene Foil Super-capacitor