LX-3 - Uncategorized Radial Engineering - Free user manual and instructions
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| Product Type | 3-Channel Line-to-Mic Level Converter |
| Number of Channels | 3 independent channels |
| Input Connectors | 3 x 1/4" TRS balanced/unbalanced |
| Output Connectors | 3 x XLR male mic level outputs |
| Attenuation | -30 dB nominal (fixed) |
| Frequency Response | 20 Hz – 20 kHz (±0.5 dB) |
| Isolation | Transformer-isolated for hum and buzz rejection |
| Power Requirement | None - fully passive operation |
| Chassis | Heavy-duty 14-gauge steel |
| Dimensions (H x W x D) | 1.75 x 5.5 x 3.5 in (44 x 140 x 89 mm) |
| Weight | 0.85 lb (0.39 kg) |
| Application | Connect line-level sources to mic-level mixer inputs |
| Mounting | Compact pedal-style with rubber base |
| Maintenance | Wipe clean with a dry cloth; no internal parts to adjust |
| Safety | No user-serviceable components; refer to qualified service |
| Repairability | Straightforward - internally accessible PCB for servicing |
Frequently Asked Questions - LX-3 Radial Engineering
What is the Radial LX-3 used for?
The LX-3 is a 3-channel line-to-mic level converter used to connect line-level devices such as keyboards, laptops, and audio interfaces to microphone inputs on mixing consoles or snakes without altering their sound.
How do I connect the LX-3 to my mixer?
Connect your line-level source to the 1/4" input of the channel, then run an XLR cable from the mic-level output to a balanced mic input on your mixer. Make sure the mixer input is set to mic level, not line level.
Does the LX-3 require batteries or phantom power?
No. The LX-3 is fully passive, meaning it needs no external power source. It works anywhere in the signal chain and is completely transparent.
Can I use the LX-3 with a keyboard or laptop?
Yes, it is designed for line-level sources like keyboards, laptops, and audio interfaces that typically output high-level signals. The LX-3 safely reduces the level and provides galvanic isolation.
How do I fix hum or noise when using the LX-3?
The LX-3 features transformer isolation to eliminate ground loops. If hum persists, check that all equipment is connected to the same electrical phase and use balanced cables where possible.
What is the attenuation level of the LX-3?
The LX-3 provides a nominal 30 dB of attenuation, converting typical +4 dBu line signals to a suitable microphone level of about -26 dBu, ideal for most console preamps.
Are the LX-3 inputs balanced?
Yes, each channel's 1/4" input accepts both balanced TRS and unbalanced TS connectors, offering flexible connectivity with a wide range of instruments and gear.
Can the LX-3 be used as a DI box?
While it shares similarities with a DI box, the LX-3 is designed specifically for line-to-mic level conversion. It does not provide the instrument-level input impedance of a dedicated DI, so it is best used with line-level outputs.
How should I maintain and clean the LX-3?
Keep the chassis clean with a dry, lint-free cloth. Avoid solvents and never attempt to open the unit; there are no user-adjustable parts. Store in a moderate environment when not in use.
Is the LX-3 repairable if damaged?
Absolutely. Radial products are built with replaceable components and a serviceable PCB. If a transformer or connector fails, a qualified technician can repair it. Contact Radial Engineering for service options.
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USER MANUAL LX-3 Radial Engineering
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Product information
Brand : Radial Engineering
Model : LX-3
Category : Uncategorized