Helium 410 - Pregnant Amphion - Free user manual and instructions
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| Product Type | Bookshelf Speaker |
| Brand | Amphion |
| Model | Helium 410 |
| Dimensions (H x W x D) | 14.2 x 8.3 x 9.8 in (360 x 210 x 250 mm) |
| Weight | 13.2 lbs (6 kg) |
| Power Handling (RMS) | 80 W |
| Power Handling (Peak) | 120 W |
| Frequency Response | 45 Hz – 25 kHz (-6 dB) |
| Impedance | 8 ohms |
| Sensitivity | 86 dB (2.83 V/1 m) |
| Recommended Amplifier Power | 20 – 100 W |
| Crossover Frequency | 1.6 kHz |
| Drivers | 1 x 1 in (25 mm) titanium tweeter, 1 x 4.5 in (114 mm) aluminum woofer |
| Enclosure Type | Bass reflex with rear port |
| Finishes Available | Black, White, Walnut |
| Warranty | 5 years (limited) |
| Cleaning Instructions | Wipe with a dry, soft cloth. Avoid solvents or abrasives. |
| Safety | Place on a stable surface. Do not expose to moisture or extreme temperatures. |
Frequently Asked Questions - Helium 410 Amphion
What is the recommended placement for the Helium 410 speakers?
For optimal sound, place the speakers at ear level when seated, at least 8 inches from the rear wall to allow bass reflex port breathing. Angle them slightly toward the listening position.
Can I use the Helium 410 as a center channel in a home theater?
Yes, the Helium 410 can be used as a center speaker. Ensure it is placed horizontally (tweeter on the side) and matched with other Amphion speakers for timbre consistency.
What amplifier power do I need for these speakers?
Amphion recommends an amplifier with 20–100 watts RMS. Higher quality amplifiers will yield better sound. Avoid clipping by not exceeding the rated power.
How do I clean the Helium 410 speakers?
Use a dry, soft cloth to wipe the cabinet. For grills, gently vacuum with a brush attachment. Do not use any liquids or cleaning agents.
What is the impedance of the Helium 410?
The nominal impedance is 8 ohms, making them easy to drive for most stereo receivers and amplifiers.
Can I bi-wire or bi-amp these speakers?
The Helium 410 has a single pair of binding posts and does not support bi-wiring or bi-amping. Use a standard single-wire connection.
What type of speaker wire should I use?
Use 14–16 AWG speaker wire with banana plugs or bare wire. Keep cable runs under 50 ft to minimize resistance.
How do I break in my new Helium 410 speakers?
Play music at moderate levels for 20–50 hours. The drivers will loosen up, improving bass and overall clarity.
Are replacement parts available for the Helium 410?
Yes, authorized Amphion dealers stock replacement tweeters, woofers, and crossover boards. Contact customer support for part numbers.
What is the warranty period for the Helium 410?
Amphion provides a limited 5-year warranty against defects in materials and workmanship. Proof of purchase is required.
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