HST105-1B — 1 Inch Voice Coil Tweeter Speaker 4 Ohm
The HST105-1B is listed in the manufacturer's catalogue as “1 Inch Voice Coil Tweeter Speaker 4 Ohm”. Its published specification table states: nominal impedance 4 OHMS,DC:3.4 OHMS; rated 25W/50W (RMS/MAX); sensitivity 99 dB; published response 1.5K-20KHz. The complete table is reproduced below, exactly as published.
Manufacturer's description
Engineered and designed by professional engineering team, this pro bullet tweeter is one of the best in the market. The HST105-1B generates powerful high frequency sounds. You can not only hear but also see the quality by checking out its elegant aluminum enclosure. Matte all-black finish makes this piece a trendsetter.
The text above is the manufacturer's own product description, reproduced as published. The specification table below is the controlling document for figures.
Published specification
| Model | HST105-1B |
|---|---|
| Nominal Impedance | 4 OHMS,DC:3.4 OHMS |
| RMS/MAX Power | 25W/50W |
| S.P.L. (1W/1M) | 99 dB |
| FREQ,RESP | 1.5K-20KHz |
| Voice coil | 25.4mm KSV |
| Diaphragm Material | Titanium |
| Magnet (mm) | 70*32*15(8.2 Oz) |
| Dimension | ¢97*H87mm |
| Net weight | 0.60 kg |
Specification table reproduced exactly as published by the manufacturer for this model, including its original field names. Do not carry these figures to any other model — each product page on this site carries only its own model's table.
Two catalogue listings for the HST105-1B
The manufacturer's catalogue lists the HST105-1B twice. This page covers the listing titled “1 Inch Voice Coil Tweeter Speaker 4 Ohm” — the listing whose title states the impedance outright, matching the table it publishes (4 OHMS nominal, DC 3.4 OHMS). The sibling listing, titled “1 Inch Voice Coil High Performance Tweeters”, publishes an identical table and the same product description. The two listings are kept as separate pages on this site so each catalogue entry can be quoted against its own title; ask the sales team to confirm which listing your quotation refers to, so the order paperwork matches the entry you selected.
Where this model fits
The HST105-1B listing on this page is the one whose title designates it as the 4 ohm model, and its published table is written for buyers who specify by impedance: nominal impedance 4 OHMS with a DC resistance of 3.4 OHMS stated explicitly, alongside 25 W RMS rated power, 99 dB sensitivity and a 1.5 kHz–20 kHz published response from its titanium diaphragm and 25.4 mm KSV voice coil. Programmes that standardise on confirmed-impedance components — fleet work, system kits with fixed crossovers, and retail lines that print an impedance on the box — are the natural home of this listing.
The stated DC resistance is the detail installers actually use: it predicts the load an amplifier or passive crossover sees at rest, and it lets a kit designer verify a production sample with a multimeter in seconds. When you order against this listing, ask the sales team to confirm on the quotation that production units match the published 4 ohm / 3.4 ohm DC figures, so your incoming inspection has a written reference.
Ordering notes
For OEM branding, the manufacturer's published general levels are a 200-piece order for logo application on the dust cap, paper cone, basket or magnet, and a 500-piece order for OEM boxes; the model-specific FAQ term above takes precedence where one is published. Ask the sales team to confirm, in the written quotation for this exact model: the applicable MOQ with your packaging choice, the final specification against the table on this page, the packing quantity, and the lead time for your order — the company describes its lead times as short but publishes no fixed figure.
- Confirm the impedance variant you need where the table lists more than one nominal impedance.
- Confirm the sample process: the manufacturer's product FAQs describe samples as offered for testing once an order is confirmed — ask how that applies to your first order.
- Confirm warranty and after-sales terms for the model in writing before payment.
Related models
Request a quotation for the HST105-1B
Tell us the model, size and quantity you are sourcing. Ask the sales team to confirm the specification, minimum order quantity, packaging and lead time for your exact model in the written quotation before you place an order.