RX12
RX12 12-Channel USB Bluetooth Mixing Console
The largest desk in the range: twelve channels, 48V phantom power, reverb, and USB and Bluetooth playback in one analogue chassis.
View specification
Audio Mixers · F4-USB
F4-USB 4-Channel Ultra Compact Mixer
The entry model at 21 USD, carrying the same published bench specification as desks costing twice as much.
Price excludes shipping. Freight is quoted for your destination once quantity is confirmed.
Product Overview
The F4-USB exists to hold a price point without embarrassing the brand on it. Four channels, 48V phantom power, USB, and the same measured specification the factory publishes for the F7-USB: 20 Hz to 25 kHz within +/-1 dB, 0 to +40 dB of microphone gain, 120 dB E.I.N., three EQ bands at 80 Hz, 2500 Hz and 12 kHz. It is the desk to put in a starter bundle, a classroom trolley or a podcast kit where the buyer needs two microphones and a music source and nothing else.
Problems It Solves
Entry mixers normally arrive with no measurable specification at all, so the cheapest line in a catalogue is also the one the sales team cannot defend. This one comes with figures.
Who It Is For
Importers building entry-level bundles, education suppliers, and brand owners who need a promotional price without publishing a blank datasheet.
Key Benefits
Why Buyers Choose the F4-USB
Lowest price in the range
21.00 USD per piece opens an entry bundle or a promotional line.
Same bench figures as the F7-USB
The published specification does not drop with the price.
Ultra compact footprint
Fits a classroom trolley, a podcast desk or a shallow travel case.
48V phantom power
A condenser podcast microphone works without an interface.
Electronically balanced inputs
Balanced mic and line inputs hold up over longer cable runs than the price suggests.
Technical Features
- Four channels
- 48V phantom power
- USB connectivity
- Three-band EQ at 80 Hz, 2500 Hz and 12 kHz
- Electronically balanced mic and line inputs
- Ultra compact chassis
Application Scenarios
- Podcast and voice recording desks
- Classroom and training trolleys
- Two-microphone interview setups
- Small rehearsal spaces
- Starter bundles sold with a microphone
Specifications
Published Specification for the F4-USB
All figures above are published by the factory on the F4-USB product listing.
| Parameter | Value |
|---|---|
| Mic input | Electronically balanced, discrete input configuration |
| Mic frequency response | 20 Hz to 25 kHz, +/-1 dB |
| Mic gain range | 0 dB to +40 dB |
| Mic signal to noise | 120 dB E.I.N. |
| Line input | Electronically balanced |
| Line frequency response | 20 Hz to 25 kHz, +/-1 dB |
| Line gain range | -20 dB to +20 dB |
| Line signal to noise | 95 dB |
| Stereo channel response | 20 Hz to 25 kHz, +/-1 dB |
| Stereo gain range | Line -20 dB to +10 dB |
| Stereo signal to noise | Line 95 dB |
| EQ low | 80 Hz, +/-15 dB |
| EQ mid | 2500 Hz, +/-15 dB |
| EQ high | 12 kHz, +/-15 dB |
Manufacturing and Quality
How This Desk Is Built and Checked
The F4-USB is assembled in Enping using surface-mount technology, in the same plant that builds our wireless systems. The factory's instrumentation includes Motorola high-frequency wireless testing instruments, an HP high-frequency signal source, Fourier analysers and frequency sweep instruments.
Factory audit is acceptable for buyers who need to verify the process in person.
TBC Certification marks such as CE and RoHS are not published on the factory catalogue for this model. Confirm the certification you need on your enquiry before ordering.
Customisation Options
- Own-brand silkscreen and logo
- Retail and export packaging to your artwork
- Mains version built for the destination market
- Bundled with a dynamic microphone from our own range
Compared With Our Other Models
The F4-USB and the F7-USB publish identical bench figures; the F7-USB adds three inputs and effects for eight dollars. Choose the F4-USB where the kit only ever needs two microphones and a music source.
Use Guide
- Set gain before touching the faders, with the source at its loudest realistic level.
- Switch 48V phantom on only when a condenser microphone is connected.
- For podcasting, record a thirty-second test and check for clipping before the real take.
- Use the EQ to cut rather than boost; the 80 Hz band will clear desk rumble.
- Keep the chassis off the desk surface on a mat if you tap or type while recording.
Related Industries
FAQ
F4-USB — Frequently Asked Questions
What is the price and minimum order?
21.00 USD per piece at a minimum order of one hundred pieces, excluding shipping. This is the lowest-priced model in the mixer range.
Does the cheapest model have a real specification?
Yes. The F4-USB publishes the same bench figures as the F7-USB: 20 Hz to 25 kHz within +/-1 dB, 0 to +40 dB mic gain, 120 dB E.I.N. and three EQ bands at 80 Hz, 2500 Hz and 12 kHz.
Does it have 48V phantom power?
Yes, so a condenser microphone can be used without a separate interface or power supply.
Is it suitable for podcasting?
Yes. Four channels cover two microphones and a music source, with USB for the computer connection and phantom power for a condenser microphone.
Can it be bundled with your microphones?
Yes. The dynamic microphone series is held in stock and is regularly bundled with the F4-USB for starter kits.
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View specificationRequest a Quote on the F4-USB
Catalogue price USD 21.00 per piece at a minimum of 100 pieces, excluding shipping. Tell us the quantity and destination and a proforma invoice follows.