Feature
●Vintage Elegance: The LC30 boasts dual large VU meters, complete with adjustable brightness across five levels. It offers versatile connectivity with two inputs and two outputs, enabling four distinct configurations. Beyond its functional prowess as a switcher, it stands as exquisite decorative VU meters allowing you to enjoy the vibrant audio-visual feast.
●Versatile Compatibility: Fully supports a wide range of amplifiers. The large enclosure design accommodates not only two Fosi Audio compact amplifiers on top but also seamlessly integrates with traditional Class A, Class B, Class AB, and tube amplifiers without issues to meet your diverse audio enjoyment needs.
●Superior Components: Integrated with 390Ω protective load resistors, thickened copper foil circuits, premium speaker binding posts, and switching relays, the LC30 ensures virtually no impact or loss in sound quality and supports a maximum 250W power transmission per channel. This allows you to enjoy the purest high-fidelity sound.
●Ease of Use: Offers both button and remote control operation, enabling one-tap switching between two amplifiers and two speakers. It streamlines the process of A/B comparison testing for two amplifiers or speakers, ensuring straightforward accessibility. Moreover, adjusting the backlight brightness and needle sensitivity is made effortlessly simple, enhancing the overall user experience.
●Crafted for Audiophiles: The LC30 was specially developed to cater to our fans requests. It embodies the Fosi Audio signature all-aluminum alloy construction for durability and reliability, complemented by a 24-month official warranty for peace of mind. This device is destined to be a lasting companion for your HiFi home audio system, ensuring enduring satisfaction.
Description
Reviving the Classic Vintage Charm
Fosi Audio LC30 VU Meter Amplifier Speaker Selector
A 2-in 2-out amplifier/speaker switch box designed for HiFi enthusiasts. It allows seamless switching between two amps or speakers, eliminating the hassle of cable plugging. The needles’ lively dancing on the music enhances your audio-visual experience.
Effortlessly Switch Between Two Sets of Amplifiers/Speakers
The LC30 was specially developed to cater to our audiophile fans‘ requests to complement your home audio system setup. It can serve as an amp/speaker selector or a pure VU meter allowing you to enjoy the vibrant audio-visual feast.
- Supported Amplifier Types: BTL, Class A, Class B, Class AB, Class D and tube amplifiers, etc.
- Maximum Power Support: 250W@4Ω per channel
- VU Meter Brightness Adjustment: 5 levels(100%, 75%, 50%, 25%, Off)
- Power Supply Voltage: DC 5V USB-C
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Large-Size VU Meters
Dual 85*45mm VU meters offer real-time feedback on left and right channel signal strength.
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Front Panel Multifunction Buttons
Three integrated keys for power, brightness adjustment, and speaker/amplifier switching.
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Needles Sensitivity Adjustment Knob
Adjusts sensitivity to match various input signal strengths, capturing every notes pulse.
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Five-Level Backlight Brightness Adjustment
VU meter backlight brightness offers five settings: 100%, 75%, 50%, 25%, and off.
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Large-Sized Chassis Design Saving Space
Can accommodate Fosi Audio compact amplifiers on the top, offering versatile configuration options.
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Multifunctional Remote Control
Makes switching more convenient, allowing you to navigate your audio and focus on the music.
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Exquisite All-Aluminum Alloy Chassis
One-piece CNC-molded and anodically oxidized for a sandblasted all-aluminum body.
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Connection Diagram When Used as a Switcher
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Connection Diagram When Used as a Pure VU Meter
Superior Quality Components
High-quality Relays
Leveraging superior internal components for high-power lossless output, creating an unparalleled exceptional listening experience for you.
390Ω Load Resistors
Designed to prevent amplifier no-load conditions, guaranteeing stable operation and extending lifespan.
Thickened Circuit Traces
Utilizes thickened copper foils in the circuitry to minimize power loss during audio transmission.
User-friendly Terminal Design
Terminals oriented upwards/downwards simplify the cable connection process, ensuring easy and quick connections.
Comparison Chart
 MC101 |  DA2120C |  DA2120A |  V1.0B |  Q4 |  K5 Pro | |
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Customer Reviews
| 71
| 672
| 409
| 720
| 2,672
| 486
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Price
| $89.99 | $159.99 | $139.99 | $49.99 | $66.99 | $79.99 |
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Type
| Bluetooth 2.0 CH Amp | Bluetooth DAC 2.1 CH Amp | Bluetooth DAC 2.1 CH Amp | 2.0 CH Amp | DAC+Headphone Amp | DAC+Headphone Amp |
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MAX Power Output
| 100W x 2 | 120W x 2 | 50W x 2 | 50W x 2 | - | - |
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Input
| Bluetooth + RCA | BT 5.0+RCA+PC-USB+Optical+Coa | Bluetooth+AUX+Optical+Coaxial | RCA | PC-USB + Optical + Coaxial | USB-C + Optical + Coaxial+Mic |
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Output
| Passive Speakers+Pre-Out | Passive Speakers+Active Sub | Passive Speakers+Subwoofer | Passive Speakers | RCA + 3.5mm Headphone | RCA + 3.5mm Headphone |
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Treble & Bass Control
| ✔ | ✔ | ✔ | ✘ | ✔ | ✔ |
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THD
| ≤0.03% | ≤0.01% | ≤0.01% | ≤ 0.04% | ≤0.01% | <0.003% |
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SNR
| ≥100dB | ≥110dB | ≥105dB | ≥ 98dB | ≥105dB | >110dB |
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Terminating Impedance
| 4-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 16-200 Ohm | 16-300 Ohm |
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Power Adapter
| 24V/4.5A | 32V/5A | 24V/4.5A | 19V/4.74A | - | - |
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Work Voltage
| AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | DC 5V | USB-C/DC5V |