1. はじめに
The Kinter MA170 is a compact and efficient 2-channel mini digital audio power amplifier designed for versatile audio applications, including car audio systems or connecting to MP3 players. It delivers clear sound with adjustable bass and treble controls, making it suitable for various listening environments. This manual provides essential information for setting up, operating, and maintaining your MA170 amplifier。
図1: 前面 view of the Kinter MA170 amplifier。
2. 箱の中身
パッケージを開けると、次のアイテムが見つかります。
- Kinter MA170 ミニデジタルオーディオ電源 Ampリファイアー
- 取扱説明書（本書）
Note: A 12V power supply is required for operation and is sold separately. Connecting cables are also not included.
3. セットアップ
Follow these steps to set up your Kinter MA170 amplifier：
3.1. 電源接続
The MA170 requires a 12V DC power supply. Ensure the power supply has a 2.1 mm x 5.5 mm DC plug with center positive polarity. Connect the power supply to the DC 12V input port on the rear of the amplifier。
3.2。 オーディオ入力
Connect your audio source (e.g., MP3 player, smartphone, PC, DVD player) to the RCA input jacks (L/R) on the rear of the amplifier. Use appropriate RCA cables for this connection.
3.3. スピーカー出力
Connect your speakers to the speaker output terminals on the rear of the amplifier. The MA170 supports speakers with an impedance of 4-16 ohms. Ensure correct polarity (positive to positive, negative to negative) for each speaker. The amplifier provides 2 x 18 watts per channel.
図2：背面 view of the Kinter MA170 amplifier with connection points.
Figure 3: Application Diagram for Kinter MA170.
4. 操作手順
Once all connections are secure, you can begin operating your amplifier：
4.1. 電源のオン/オフ
を押す 電源オン/オフ フロントパネルのボタンを押して amplifier on or off. The volume knob will illuminate with a colorful LED when the unit is powered on.
Figure 4: Illuminated volume knob on the Kinter MA170.
4.2. 音量コントロール
大きな 音量 knob clockwise to increase the audio output level and counter-clockwise to decrease it.
4.3.低音調整
使用 BASS knob to adjust the low-frequency output. Turn clockwise to boost bass and counter-clockwise to reduce it.
4.4.高音域の調整
使用 高音 knob to adjust the high-frequency output. Turn clockwise to boost treble and counter-clockwise to reduce it.
5. 仕様
Detailed technical specifications for the Kinter MA170 amplifier：
| 特徴 | 仕様 |
|---|---|
| 出力 | 2 x 18ワット |
| 入力インピーダンス | 47Kオーム |
| 出力インピーダンス | 4 - 16オーム |
| 周波数応答 | 20～20,000Hz |
| 最小THD | ≤0.02% |
| 入力ボリュームtage | 9～14.4VDC |
| 定格入力電流 | 1A - 3A |
| DCプラグサイズ | 2.1mm×5.5mm |
| DC Input Polarity | センターポジティブ |
| 寸法（L x W x D） | 4-7/8" x 1-5/8" x 4-5/8" |
Figure 5: Kinter MA170 dimensions.
6. メンテナンス
To ensure the longevity and optimal performance of your Kinter MA170 ampライフライザーを使用する場合は、次のメンテナンス ガイドラインに従ってください。
- 保管してください amplifier clean by wiping it with a soft, dry cloth. Avoid using liquid cleaners or solvents.
- Ensure proper ventilation around the unit to prevent overheating. Do not block the heat sink fins.
- 露出を避ける amplifier to extreme temperatures, direct sunlight, high humidity, or dusty environments.
- Disconnect the power supply when the amplifier is not in use for extended periods.
7。 トラブルシューティング
If you encounter issues with your Kinter MA170 amp問題が解決しない場合は、次の一般的なトラブルシューティング手順を参照してください。
- 電源なし: 12V DC電源が正しく接続され、機能していることを確認してください。電源コンセントを確認してください。
- 音が出ない: Verify that the audio input cables are securely connected to both the source and the amplifier. Check speaker wire connections for correct polarity and ensure they are firmly inserted into the terminals. Confirm the volume knob is turned up and the audio source is playing.
- 歪んだ音: 両方の音量レベルを下げます amplifier and the audio source. Check speaker impedance to ensure it is within the recommended 4-16 ohms range. Inspect speaker wires for any fraying or short circuits.
- 断続的な音: Check all cable connections for looseness. Ensure the power supply is stable and providing consistent voltage.
If the problem persists after attempting these steps, please refer to the support information in the next section.
8. 保証とサポート
For warranty information or technical support regarding your Kinter MA170 amplifier, please contact Kinter customer service through their official webご購入いただいたサイトまたは販売店にお問い合わせください。購入証明書として領収書を保管してください。
An additional user manual in PDF format may be available for download from the product's Amazon page or the Kinter website for further reference: Kinter MA170 User Manual (PDF).
