English
.png){kind=logo}
4× KSM9 Dual-Diaphragm Condenser Capsules – Studio-Grade Vocal Reproduction – Unlike the KSM8 dynamic capsule, each KSM9 handheld features premium dual 3/4" gold-layered Mylar diaphragms with a switchable supercardioid/cardioid polar pattern. Class-A discrete transformerless preamplifier delivers pristine 50 Hz–20 kHz frequency response with exceptional vocal subtlety and clear articulation—purpose-built for lead vocalists and public speakers who demand condenser-grade detail on live stages.
Massive 500m Range & 400-Channel Agility – Unshakeable signal stability with an impressive 300–500m line-of-sight range and 80–200m in complex indoor venues. 400 user-adjustable UHF channels (100 per receiver) across the 610–670 MHz band ensure interference-free operation for up to 20 simultaneous systems (80 transmitters), making this the ultimate solution for large-scale musicals, multi-act festivals, and multi-room conference centers.
Professional 4-Channel True Diversity Receiver – Sleek 1U rack-mountable console features a large LED display, 4 independent SQ potentiometers, 4 balanced XLR outputs, and 1 mixed unbalanced output for seamless integration with any PA system. Advanced PLL digital synthesis ensures ±0.001% frequency stability, while True Diversity reception with 4 rubber antennas eliminates dropouts in RF-congested venues.
12-Hour Battery Life & Blue LED Status Ring – Each KSM9 handheld transmitter delivers up to 12 hours of continuous operation on 3× AA batteries (80 mA consumption). The patented housing includes a signature blue light ring that illuminates during operation for at-a-glance status monitoring on dark stages—perfect for long conferences, extended worship services, and all-day festival performances.
Versatile Multi-Scenario Performance – Flexible transmitter pairing across all 400 channels within two receiver banks. The switchable supercardioid/cardioid polar pattern adapts to any acoustic environment: use supercardioid for maximum feedback rejection on loud stages, or cardioid for more forgiving pickup in conference rooms and houses of worship. Ideal for stage performances, band gigs, church services, school auditoriums, government boardrooms, and corporate events.
4× KSM9 Dual-Diaphragm Condenser Handheld Mics | 400 Channels | 300–500m Range | True Diversity | PLL Digital Synthesis
Click image to enlarge. Actual product may vary slightly.
The AD4Q 4-Channel UHF Wireless Microphone System with KSM9 is a flagship professional wireless solution engineered for large-scale events and demanding live audio environments. Designed specifically for stage performances, band gigs, houses of worship, school auditoriums, and corporate conference rooms, this system includes a sleek 1U rack-mountable receiver and 4 premium KSM9 dual-diaphragm condenser handheld microphones with switchable supercardioid/cardioid polar patterns. Featuring 400 user-adjustable UHF channels (100 per receiver), PLL digital phase-locked loop technology, and an impressive 300–500 meter line-of-sight range, the AD4Q delivers pristine, dropout-free audio that competitors simply cannot match at this price point. Each mic runs up to 12 hours on AA batteries, with a signature blue LED status ring for real-time monitoring—making this the ultimate all-in-one wireless solution for any professional audio setup.
✨ Premium KSM9 Condenser Upgrade: This system features the KSM9 dual-diaphragm condenser capsule — a significant upgrade from the KSM8 dynamic capsule. The KSM9's Class-A discrete transformerless preamplifier, dual 3/4" gold-layered Mylar diaphragms, and switchable supercardioid/cardioid polar patterns deliver studio-grade vocal clarity, exceptional detail, and precise articulation that discerning lead vocalists and professional presenters demand. Frequency response: 50 Hz–20 kHz.
Each KSM9 handheld features premium dual 3/4" gold-layered Mylar diaphragms with a switchable supercardioid/cardioid polar pattern — the first handheld condenser microphone with this capability. The Class-A discrete transformerless preamplifier delivers pristine 50 Hz–20 kHz frequency response with exceptional vocal subtlety and clear articulation. Rated at -43 ±3dB sensitivity @ 1 kHz with only 80 mA power consumption, each mic runs continuously for up to 12 hours on 3× AA batteries. The patented housing includes a signature blue light ring that illuminates during operation for at-a-glance status monitoring on dark stages.
Each of the 4 independent receivers offers 100 selectable channels (250 kHz spacing, 24.75 MHz per channel), totaling 400 user-adjustable UHF frequencies across the 610–670 MHz band. Up to 20 systems (80 transmitters) can operate simultaneously on the same stage without crosstalk, making this ideal for large-scale musicals, multi-act festivals, and multi-room conference centers.
Advanced phase-locked loop (PLL) digital lock-phase technology paired with chip-based circuitry ensures exceptional frequency stability of ±0.001%, eliminating drift and dropouts. True Diversity reception with 4 rubber receiving antennas delivers 300–500 meters line-of-sight range (80–200m in complex environments), with >60dB signal-to-noise ratio, <0.5% THD at 1kHz, and ≥100dB dynamic range—maintaining clean audio even in RF-congested concert venues and urban environments.
Unlike fixed-pattern microphones, the KSM9's switchable supercardioid/cardioid polar pattern provides unmatched flexibility: use supercardioid for maximum feedback rejection and isolation on loud stages with floor monitors, or switch to cardioid for more forgiving pickup in conference rooms, houses of worship, and acoustic environments where a wider pickup area is preferred. One microphone adapts to every venue—no need for multiple mic types.
The AD4Q ships as a turnkey solution with everything needed for immediate professional use: 1 × 4-channel digital receiver, 4 × KSM9 condenser handheld microphones, 1 × 1/4-inch audio cable, 1 × universal AC-DC adapter (DC 12V–17V), 4 × antennas, and 1 × user manual. The receiver features a large LED display for real-time frequency monitoring, 4 independent SQ potentiometers, 4 balanced XLR outputs + 1 mixed unbalanced output, and a sleek 1U rack-mountable form factor that integrates seamlessly into any existing audio rack setup.
🛡️ Authorized Dealer Warranty: This product is brand new in original packaging, sold by MiCWL Audio Inc. as an authorized dealer. Covered by a 1-Year Manufacturer Warranty. Buy with confidence.
If you have any questions about the AD4Q KSM9 system, need a custom microphone capsule configuration, or would like to inquire about bulk / government orders — our team is ready to assist you.
✉️ shop@micwlaudio.com© 2026 MiCWL Audio Inc. All rights reserved.
"Your suggestion is very important to us"