STM-2250 - Mixer Vonyx - Free user manual and instructions
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| Product Type | Mixing Console |
| Brand | Vonyx |
| Model | STM-2250 |
| Input Channels | 2 (Mic/Line) |
| Outputs | Stereo Main Out, Headphone Out |
| Equalization | 3-band EQ per channel |
| Phantom Power | +48V (selectable per channel) |
| Power Supply | 12V DC, 500mA (adapter included) |
| Dimensions (W x D x H) | 8.7 x 6.3 x 2.0 inches |
| Weight | 1.8 kg (4.0 lbs) |
| Material | Metal chassis, plastic knobs |
| Frequency Response | 20 Hz - 20 kHz |
| Total Harmonic Distortion | < 0.01% |
| Signal-to-Noise Ratio | > 90 dB |
| Maintenance & Cleaning | Use a soft dry cloth; avoid solvents. |
| Safety Precautions | Do not expose to moisture; disconnect power when not in use. |
| Spare Parts & Repairability | Contact Vonyx support for replacement parts; repair by qualified personnel only. |
Frequently Asked Questions - STM-2250 Vonyx
How do I connect a microphone to the STM-2250?
Connect an XLR cable from your microphone to one of the Mic/Line input channels. Ensure phantom power is on if using a condenser mic.
Can I use the mixer with a computer?
Yes, you can connect the stereo main output to a computer's line input using a 3.5mm adapter or USB interface.
How do I adjust the sound quality?
Each channel has a 3-band equalizer (Bass, Mid, Treble) to shape the tone. Adjust gain and volume knobs for proper level.
What power supply does the STM-2250 need?
It requires a 12V DC power adapter with at least 500mA output. Use the included adapter only.
Does it support phantom power?
Yes, selectable +48V phantom power is available for each channel via a dedicated switch.
How do I connect powered speakers?
Use two balanced 1/4-inch TRS or XLR cables from the main outputs to your speakers.
Can I use headphones with this mixer?
Yes, plug your headphones into the headphone output on the front panel. Adjust the headphone volume knob.
How do I clean the mixer?
Unplug it first. Use a soft, dry cloth to wipe the surface. Avoid liquids or abrasive cleaners.
What should I do if there is no sound?
Check that all cables are securely connected, gain and volume knobs are turned up, and the power is on. Verify that phantom power is not causing issues with dynamic mics.
Is the Vonyx STM-2250 durable?
It has a metal chassis and robust construction, suitable for small gigs, rehearsals, or home studios.
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USER MANUAL STM-2250 Vonyx
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Product information
Brand : Vonyx
Model : STM-2250
Category : Mixer