Professional Dual-Channel Audio Isolation Transformer Ground Loop Isolator XLR/1/4" TRS, TS, 6.35mm – Remove Hum, Buzz & Ground Loop Noise for PA, HiFi, Mixers & Sound Systems
Professional Dual-Channel Audio Isolation Transformer Ground Loop Isolator XLR/1/4" TRS, TS, 6.35mm – Remove Hum, Buzz & Ground Loop Noise for PA, HiFi, Mixers & Sound Systems
2️⃣ Ground lift: An audio isolator may also include a ground lift feature. which separates the ground connection between two devices to eliminate hum and other ground loop issues.
3️⃣ Input/Output Impedance: Audio isolators often have adjustable input and output impedance. allowing them to match the impedance of different audio equipment.
4️⃣Low noise: Audio isolators should have low noise levels to minimize the introduction of unwanted noise into the audio signal.
5️⃣ Sturdy construction: Audio isolators should be built with high-quality components and sturdy construction to withstand the demands of professional audio applications. Portability: Some audio isolators are designed for portability. making them ideal for live sound reinforcement. broadcast. and recording applications.
Founded in 2015. Top-Longer set out to solve noise interference issues in audio. We developed high-quality isolators to ensure clear. uninterrupted sound for professionals and creators.
Tired of annoying hum & buzz in your audio? The Top-Longer HD Audio Isolator instantly eliminates ground loop noise. ensuring pure. crystal-clear sound for your studio. home theater. or live setup. Dual-channel. pro-grade isolation—no more interference. just perfect audio!
Frequency Response10Hz – 20kHz. ±0.5dB @ +4dBuIsolation TypeTransformer-Based IsolationGround LiftIndependent Ground Lift Switches (One per Channel)PowerPassive. No Power RequiredEnclosure MaterialAluminum Alloy + Silicone Protective CornersFixed Loss<0.7dB (Ref. 1kHz. 1V RMS)Insulation Resistance≥100MΩ @ DC 1000VIsolation Voltage1500V AC @ 50Hz–60HzInput Impedance600Ω (AC impedance)Output Impedance600Ω (AC impedance)Channel SupportDual-Channel (Stereo L/R)Input ConnectionsDual XLR Female (Balanced). 1/4” TS (Unbalanced)Output ConnectionsDual XLR Male (Balanced). 1/4” TRS (Balanced)Item Dimensions1.7” (H) × 3.55” (W) × 4.37” (D) (43mm × 90mm × 111mm)Package Dimensions3.34” (H) × 4.13” (W) × 5.7” (D) (85mm × 105mm × 145mm)Weight1.1 lbs (0.5 kg)1 .Recording Studios
Removes ground loop noise when connecting mixers. and audio interfaces for cleaner recordings.
2 .Live Performances & Stage Use
Ideal for musicians and performers. isolating guitar. bass. keyboard. and stage monitor signals from ground-related noise.
3 .Streaming & Podcasting
Reduces electrical hum when connecting audio interfaces. and computers. ensuring crystal-clear audio for broadcasts.
4 .Home Theater & Hi-Fi Systems
Eliminates unwanted background noise from home audio HiFi stereo systems. improving overall sound clarity and quality.
Dual-Channel Audio Signal Isolation
• Supports stereo (L/R) signal isolation. effectively eliminating ground loop hum and signal interference caused by electrical grounding issues.
• Uses high-quality transformer isolation to ensure clean. noise-free audio transmission in professional applications.
Versatile Input & Output Connections – Equipped with XLR/TRS/TS 6.35mm combo input jacks. which are compatible with:
• XLR connectors (commonly used in mixers. and professional audio interfaces).
• 6.35mm TRS/TS jacks (suitable for guitars. electronic instruments. and amplifiers).
• Ensures seamless integration with various audio devices. including recording studios. live performances. broadcasting setups. and home theater systems.
Earth Lift Switch – Features an EARTH LIFT (ground lift) switch. allowing manual control over grounding to further eliminate hum and noise caused by improper grounding. LIFT Mode: Disconnects the ground connection to prevent ground loop interference (recommended when experiencing noise issues). EARTH Mode: Maintains the ground connection. suitable for standard audio setups.
Signal Protection & Noise Filtering – The transformer isolation not only removes noise but also safeguards downstream audio equipment from potential mismatched signals or electrical surges.
The Top-Longer HD Audio Isolator is a high-performance dual-channel audio isolation device designed to eliminate ground loop noise. electrical interference. and unwanted hum. ensuring pure and clean audio signals.
Durable Metal Enclosure
Constructed with a full aluminum alloy body. providing high-strength durability. equipped with silicone corner guards. Anti-slip. offering added protection against drops. impact. and physical damage.
Independent Channel Controls
Each channel (L/R) has its own EARTH LIFT switch. allowing independent ground control for different input sources.