Kinter K3118 2.1 Channel Bluetooth Mini Amplifier
- Power: 30 watts
- Connectivity: Bluetooth, USB, Aux
- Brand Tech: Kinter
- Item Weight: 1.8 pounds
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact stereo amplifier for a small speaker pair, offering wireless Bluetooth streaming alongside wired USB and aux backups for those who want both options covered.
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ASIN: B08SL6ZL6QModel: K3118-2.1Category: Audio Amplifiers
Overview
The Kinter K3118-2.1 is a compact 2.0-channel stereo amplifier rated at 30 watts, offering Bluetooth, USB, and aux inputs. It suits a small pair of passive speakers on a desk, workbench, or in a compact secondary room rather than a full home theater.
Despite the 2.1 designation in the model name, the listed spec sheet shows 2.0 channels with no separate subwoofer output, so anyone expecting built-in bass management should check the port layout in the listing photos first. At under 2 pounds and roughly 7 inches wide, this reads as a shelf or under-desk unit rather than a full-size receiver.
- 2.0-channel stereo amplifier
- 30 watt rated output
- Bluetooth, USB and aux connectivity
- 6.89 x 4.92 x 1.77 in, 1.8 lb
Who it's for
Suits anyone driving a pair of passive bookshelf or workshop speakers who wants Bluetooth streaming with a wired USB or aux fallback close at hand. It is not sized or powered for a large living room or a full multi-channel home theater setup.
Pros and cons
- Bluetooth plus wired USB and aux inputs
- Compact footprint under 2 pounds
- Simple setup for a small speaker pair
- 2.0 channel only despite the 2.1 name
- 30 watts limits it to small rooms
Performance notes
With 2.0 channels and 30 watts on tap, output is scaled for near-field or small-room listening rather than filling a large space. Bluetooth covers wireless pairing from a phone or tablet, while the USB and aux jacks give a simple wired fallback when a wireless connection is not convenient.
Specifications
| Brand | Kinter |
|---|---|
| Model | K3118-2.1 |
| Dimensions & fit | |
| Item Weight | 1.8 poundslower than 65% of 38 audio amplifiers |
| Item Dimensions | 6.9 × 4.9 × 1.8 inches |
| Power & efficiency | |
| Power | 30 watts |
| Construction & materials | |
| Color | Black |
| Compatibility & installation | |
| Connectivity | Bluetooth, USB, Aux |
| Other details | |
| Brand Tech | Kinter |
| Channels | 2 |
Closest rivals on specs
Pyle PFA540BT.6 5-Channel Bluetooth Home Theater Amplifier- Item Weight 1.8 vs 1.54 pounds (+17%)
- Power 30 vs 100 watts (-70%)
Pyle PDA29BU.5 Bluetooth Stereo Power Amplifier 200W- Item Weight 1.8 vs 1.32 pounds (+36%)
- Power 30 vs 100 watts (-70%)
Pyle PDA69BU Bluetooth Karaoke Amplifier Receiver- Item Weight 1.8 vs 3.67 pounds (-51%)
- Power 30 vs 200 watts (-85%)
Frequently asked questions
Does the Kinter K3118-2.1 include a subwoofer output?
The listed spec is 2.0 channel with no separate subwoofer output named, so check the listing photos to confirm before assuming a dedicated bass connection.
What inputs does the K3118-2.1 support?
Bluetooth for wireless streaming plus wired USB and aux connections.
How much space does this amplifier need?
It measures 6.89 x 4.92 x 1.77 inches and weighs 1.8 pounds, small enough for a shelf or desktop.