The Ampyon LI-4000 is a dual wireless microphone system designed for karaoke, live performance, stages, entertainment venues, and home audio systems. The package includes two metallic handheld transmitters and a True Diversity receiver, allowing two singers, hosts, or presenters to use the system at the same time.
With 200 selectable channels, individual left and right volume control, enhanced muting, four receiver antennas, two balanced XLR outputs, one mixed 1/4-inch output, and a listed maximum range of up to 60 meters under suitable conditions, the LI-4000 offers greater channel flexibility and control for compatible karaoke amplifiers, mixers, and sound systems.
The LI-4000 is a strong fit for:
If you want a dual-microphone system with more selectable channels, True Diversity reception, and flexible audio outputs, the LI-4000 provides a more advanced setup than a basic wireless microphone package.
Customers choose it for channel flexibility and receiver control:
The LI-4000 gives users more options for finding suitable channels, balancing two microphones, and connecting the receiver to compatible karaoke or professional-style audio equipment.
Helpful to know:
Wireless microphones are not Bluetooth microphones. The handheld transmitters communicate wirelessly with the receiver, while the receiver connects by cable to the sound system.
The LI-4000 is designed to provide more frequency choices, stable reception, and independent control for karaoke, performance, and event applications.
The LI-4000 package includes two wireless handheld transmitters, allowing two singers, hosts, or presenters to use the system simultaneously.
The metallic microphone bodies provide a solid feel and are designed for repeated karaoke, stage, presentation, and event use.
The dual-channel design allows both microphones to operate at the same time without intentionally sharing the same operating frequency.
This makes the system suitable for duets, co-hosting, interviews, presentations, and other two-user applications.
The LI-4000 provides 200 selectable channels, giving users more choices when setting up the system.
Additional channel options can help users find cleaner operating frequencies in environments with other wireless equipment, although local spectrum conditions still affect performance.
The receiver uses a True Diversity architecture designed to compare received signals and maintain a more stable wireless connection.
This can help reduce brief dropouts caused by movement, signal reflections, or changes in microphone position.
The LI-4000 package includes four antennas for the receiver system.
Correct antenna installation and placement help support stable reception. Keep the antennas clear of major obstructions and avoid placing the receiver inside a closed metal cabinet.
The receiver includes enhanced muting designed to reduce unwanted output when a usable microphone signal is not present.
The system is also described as producing very low output noise while in standby, helping keep pauses between songs or presentations cleaner.
The LI-4000 has a manufacturer-listed carrier-frequency range of 900 MHz to 950 MHz.
This broad tuning range crosses multiple spectrum segments. Use only the channels supported and permitted for the actual certified unit and operating location.
The technical specifications list a maximum operating range of up to 60 meters under suitable conditions.
Actual range depends on walls, crowds, nearby wireless systems, interference, receiver location, antenna placement, and line of sight.
The LI-4000 provides individual left and right volume adjustment for the two microphone channels.
Independent control helps balance singers or presenters with different vocal levels, microphone technique, or distance from the microphone.
The receiver display provides operating information such as frequency and channel status.
Visible system information makes channel selection, monitoring, and setup easier during karaoke sessions and events.
The receiver includes separate left and right balanced XLR outputs for connection to compatible mixers, amplifiers, and audio processors.
Separate XLR outputs allow each microphone to be routed to an independent input channel when the connected equipment supports it.
A single unbalanced 1/4-inch output provides a combined signal from both microphone channels.
This connection is convenient for many karaoke mixing amplifiers, and a 1/4-inch to 1/4-inch cable is included.
The LI-4000 has a listed signal-to-noise ratio above 105 dB and total harmonic distortion below 0.5% at 1 kHz.
These specifications support clean vocal transmission when the receiver, mixer, amplifier, and microphone gain are adjusted correctly.
The system is designed for low transmission delay so the user’s voice remains closely synchronized with the performance.
Final perceived latency also depends on the connected digital mixer, processor, effects, and sound system.
The two handheld transmitters use a total of four AA batteries, and four batteries are included.
The supplied specifications do not identify the microphones as rechargeable. Battery life varies with battery quality, operating time, and storage conditions.
The receiver is powered by the supplied 12V DC, 2000 mA adapter.
Using the correct supplied adapter helps ensure stable receiver operation and protects the system from incompatible power supplies.
The package includes the receiver, two handheld microphones, four antennas, a power adapter, operating manual, four AA batteries, a 1/4-inch cable, and a carrying case when included in the current product package.
Confirm the current in-box list before ordering because accessories can change by shipment or package version.
The LI-4000 can be used with compatible karaoke amplifiers, mixers, powered speakers, PA systems, and event sound equipment.
Its dual-channel design, channel selection, independent volume controls, and flexible outputs make it suitable for home and professional-style entertainment applications.
The package includes two metallic wireless handheld microphones and one LI-4000 receiver.
No. It is a UHF wireless microphone system. The handheld microphones communicate wirelessly with the receiver, while the receiver connects by cable to an amplifier, mixer, or compatible sound system.
The LI-4000 provides 200 selectable channels.
The technical specifications list a maximum range of up to 60 meters under suitable conditions. Walls, crowds, interference, antenna placement, and line of sight can reduce actual range.
The supplied specifications state that the two transmitters use four AA batteries in total. They do not confirm built-in rechargeable batteries.
Yes. The receiver provides independent left and right volume controls, and the separate XLR outputs can route the microphones to independent mixer or amplifier channels.
The receiver provides two balanced XLR outputs and one mixed unbalanced 1/4-inch output.
Yes, when the amplifier has a compatible microphone or line-level input. The included 1/4-inch cable may be used with compatible equipment.
No wireless microphone can completely eliminate feedback. Feedback depends on speaker placement, microphone direction, room acoustics, volume, equalization, and system adjustment.
No assumption should be made that every channel in the stated tuning range is available for general use. Check the unit’s FCC identification, certified operating channels, and local requirements before operating or selling the system.
The listed package includes one LI-4000 receiver, two metallic wireless handheld microphones, four antennas, one power adapter, four AA batteries, one operating manual, and one 1/4-inch to 1/4-inch cable. Confirm whether the carrying case is included with the current package.
Choosing an advanced wireless microphone system involves more than comparing range or channel count. The LI-4000 should be matched with the correct amplifier or mixer inputs, legal operating channels, room conditions, receiver placement, antenna position, and microphone gain settings.
Need help before ordering? Talk with Tittac before choosing your wireless microphones, amplifier, mixer, speakers, and connection setup.
Tittac Showroom
8762 Garden Grove Blvd Ste 105, Garden Grove, CA 92844
Local customers can visit the showroom. Out-of-state customers can still get help by phone, text, chat, or video before ordering.
| Microphone System Type | Dual UHF Wireless Handheld Microphone System |
|---|---|
| Microphones Included | 2 Metallic Wireless Handheld Microphones |
| Receiver Type | True Diversity |
| Selectable Channels | 200 |
| Carrier Frequency Range | 900 MHz - 950 MHz, Manufacturer Listed |
| Maximum Operating Range | Up to 60 m under Suitable Conditions |
| Frequency Stability | 10 PPM |
| Signal-to-Noise Ratio | > 105 dB |
| Total Harmonic Distortion | < 0.5% at 1 kHz |
| Image Rejection | 85 dB Typical |
| Output Impedance | 2.2 kOhms |
| Balanced Output Level | 0 - 400 mV |
| Unbalanced Output Level | 0 - 200 mV |
| Receiver Audio Outputs | 2 x Balanced XLR; 1 x Mixed Unbalanced 1/4-Inch |
| Volume Control | Independent Left and Right Channel Volume |
| Receiver Antennas | 4 Included |
| Receiver Display | Frequency and Operating Status Display |
| Receiver Power | 12V DC, 2000 mA Adapter |
| Transmitter Power | 4 x AA Batteries Total |
| Receiver Weight | 1.2 kg |
| Included Accessories | Receiver, 2 Handheld Microphones, 4 Antennas, Power Adapter, 4 AA Batteries, Operating Manual, and 1/4-Inch Cable |
Eligible Ampyon wireless microphones, microphone receivers, and microphone systems purchased from TITTAC include a 2-year limited warranty covering approved manufacturing defects under normal residential use.
Coverage applies to eligible Ampyon wireless microphones, microphone receivers, and microphone systems purchased from TITTAC.
This warranty applies to eligible Ampyon microphone products purchased from TITTAC on or after June 24, 2026. Earlier purchases remain covered under the warranty terms in effect at the time of purchase unless otherwise confirmed in writing.
Contact TITTAC with your microphone model, order or invoice information, purchase date, and a description of the issue. Photos or videos may be requested to assist with diagnosis.
Please do not return any product before receiving warranty approval and return instructions.
TITTAC offers fast shipping within the 48 contiguous United States, a straightforward 30-day exchange policy, and a 30-day return policy for eligible products.
This policy does not apply to massage chairs, which are subject to separate freight delivery, exchange, and return terms.
Please inspect your package upon delivery. If an item arrives damaged or incorrect, contact TITTAC promptly and provide clear photos of the product, packaging, and shipping label.
You may request an exchange within 30 days of delivery for another item in the same product category.
Eligible products may be returned within 30 days of delivery for any reason, subject to prior approval from TITTAC.
For deliveries outside the United States, the customer is responsible for import requirements, customs duties, taxes, and related fees.
If an international shipment is refused, the original shipping charge and return shipping charge may not be refundable.
Contact TITTAC for shipping assistance, exchange approval, return instructions, or help with a damaged delivery.
