1. はじめに
The Pro-Ject MaiA S3 is a compact stereo integrated amplifier designed to deliver high-quality audio from a variety of sources. It features multiple analog and digital inputs, including a Moving Magnet (MM) phono preamplifier, a Digital-to-Analog Converter (DAC), and Bluetooth 5.0 with aptX HD for high-resolution wireless streaming. This manual provides essential information for the proper setup, operation, and maintenance of your MaiA S3 amplifier。
Please read this manual carefully before using the device to ensure safe operation and to achieve the best possible performance.
2. 安全に関する注意事項
- Always connect the power adapter to the unit last, after all other connections have been made.
- 誤って落下するのを防ぐため、ユニットが安定した水平な面に設置されていることを確認してください。
- Do not expose the unit to rain, moisture, or excessive heat sources.
- Avoid placing objects on top of the unit that could obstruct ventilation.
- 雷雨のときや長期間使用しない場合は、電源アダプターを壁のコンセントから抜いてください。
- 修理はすべて資格を持ったサービス担当者にお任せください。ご自身でユニットを開けたり修理したりしないでください。
3. パッケージ内容
Carefully unpack all items from the packaging. Please ensure the following components are included:
- Pro-Ject MaiA S3 Integrated Ampリファイアー
- 電源ユニット
- Bluetoothアンテナ
- リモートコントロール
- ユーザーマニュアル（このドキュメント）
不足品や破損品がある場合は、すぐに販売店にご連絡ください。
4。 オーバーview
4.1フロントパネル
The front panel provides access to essential controls and indicators for the MaiA S3 amplifier。
画像: 正面 view of the Pro-Ject MaiA S3 amplifier, showing the power button, headphone jack, volume knob, and input selection buttons with LED indicators.
- 電源ボタン: ユニットの電源をオンまたはオフにします。
- ヘッドフォン出力: ヘッドホン接続用6.3mmジャック。
- ボリュームノブ： 出力音量を調整します。
- 入力セレクター: Buttons to cycle through available inputs (Phono, Line 1-4, Digital 5-7, Bluetooth). Corresponding LEDs indicate the active input.
4.2 背面パネル
The rear panel houses all input and output connections for the MaiA S3 amplifier。
画像: 背面 view of the Pro-Ject MaiA S3 amplifier, displaying various input and output ports including Phono, Line In, Digital S/PDIF, Bluetooth antenna connector, Analog Output, Speaker Terminals, and Power input.
- Phono Input (In 1): RCA inputs for connecting a turntable with a Moving Magnet (MM) cartridge. Includes a ground screw.
- Line Inputs (In 2, 3, 4): RCA inputs for connecting analog sources like CD players, tuners, or tape decks.
- Digital Inputs (In 5, 6, 7): Two optical (TOSLINK) and one coaxial (S/PDIF) input for digital audio sources.
- Bluetooth Antenna Connector (In 8 BT): For attaching the supplied Bluetooth antenna.
- アナログ出力： Variable RCA output for connecting a subwoofer or another amplifier。
- Speaker Terminals (R, L): Binding posts for connecting passive loudspeakers.
- 電源入力（20V DC）： For connecting the external power supply unit.
5. セットアップ
5.1 配置
Place the MaiA S3 on a stable, non-resonant surface away from direct sunlight, heat sources, and moisture. Ensure adequate ventilation around the unit.
Image: The Pro-Ject MaiA S3 amplifier positioned on a shelf next to a turntable and another audio component, illustrating a typical home audio setup.
5.2スピーカーの接続
Connect your passive loudspeakers to the speaker terminals on the rear panel. Ensure correct polarity: connect the red (+) terminal on the ampスピーカーの赤（＋）端子と、 amplifier to the black (-) terminal on the speaker. Use high-quality speaker cables for optimal sound.
5.3ソースの接続
- Turntable (Phono In 1): Connect your turntable's RCA cables to the Phono input. If your turntable has a ground wire, connect it to the ground screw next to the Phono inputs.
- Analog Devices (Line In 2-4): Connect CD players, tuners, or other analog audio sources using RCA cables to any of the Line inputs.
- Digital Devices (In 5-7): Connect digital audio sources like TVs, game consoles, or media streamers using optical (TOSLINK) or coaxial (S/PDIF) cables to the corresponding digital inputs.
- ブルートゥースアンテナ: Screw the supplied Bluetooth antenna onto the designated connector on the rear panel.
5.4 Connecting a Subwoofer (Optional)
If you wish to add a subwoofer, connect its line-level input to the MaiA S3's Analog Output using an RCA cable. The output is variable, meaning its volume will adjust with the main volume control.
5.5電源接続
Once all audio connections are made, connect the power supply unit to the 20V DC input on the rear panel of the MaiA S3, then plug the power supply into a wall outlet.
6. 操作手順
6.1 電源のオン/オフ
Press the power button on the front panel to turn the unit on or off. The active input LED will illuminate when the unit is on.
6.2入力の選択
Use the input selector buttons on the front panel or the remote control to cycle through the available audio sources. The corresponding LED will indicate the currently selected input.
6.3 ボリュームコントロール
Rotate the volume knob on the front panel clockwise to increase volume and counter-clockwise to decrease it. Volume can also be adjusted using the remote control.
6.4Bluetoothペアリング
- Select the Bluetooth input (In 8 BT) on the MaiA S3. The Bluetooth LED will flash, indicating it is in pairing mode.
- モバイル デバイス (スマートフォン、タブレットなど) で Bluetooth を有効にし、利用可能なデバイスを検索します。
- Select "Pro-Ject MaiA S3" from the list of found devices.
- Once paired, the Bluetooth LED on the MaiA S3 will glow steadily. You can now stream audio wirelessly.
6.5 ヘッドホンの使用
Plug your headphones into the 6.3mm headphone jack on the front panel. When headphones are connected, the speaker outputs will be muted automatically.
7. メンテナンス
- クリーニング： 本体の外装は、柔らかく乾いた布で拭いてください。液体洗剤や溶剤は表面の仕上げを傷める可能性があるため、使用しないでください。
- 換気： Ensure that the ventilation slots are not blocked by dust or debris. Periodically clean them with a soft brush or compressed air.
- ケーブル接続: Periodically check all cable connections to ensure they are secure. Loose connections can lead to poor sound quality.
8。 トラブルシューティング
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| スピーカー/ヘッドホンから音が出ない | Unit not powered on; incorrect input selected; volume too low; speaker/headphone cables loose or disconnected. | Ensure unit is on; select correct input; increase volume; check all cable connections. |
| 音質が歪んでいる、または悪い | Loose connections; incorrect source settings; damaged cables; source device issue. | Check all cable connections; verify source device output settings; try different cables; test with another source. |
| Bluetoothがペアリングされない | MaiA S3 not in pairing mode; device too far; interference; device already paired to another unit. | Ensure Bluetooth input is selected and LED is flashing; move device closer; restart both devices; unpair from other devices. |
| ハミング音またはブザー音 | Ground loop (especially with turntable); interference from other electronics; faulty cable. | Ensure turntable ground wire is connected; move unit away from other electronics; try different cables. |
9. 仕様
- ブランド： プロジェクト
- モデル番号: 9120097828989
- チャンネル数: 2
- インターフェースタイプ: Coaxial, Optical, RCA, Bluetooth
- フォノ入力： Moving Magnet (MM) compatible
- ブルートゥース： Version 5.0 with aptX HD
- 商品の重量: 4.12ポンド（1.87kg）
- パッケージ寸法: 13 x 10 x 5 インチ (33 x 25.4 x 12.7 cm)
- メーカー: Pro-Jectオーディオシステム
10. 保証とサポート
Pro-Ject products are manufactured to the highest standards and undergo strict quality control. This product is covered by a manufacturer's warranty, the terms of which may vary by region. Please retain your proof of purchase for any warranty claims.
For technical support, service, or further information, please contact your authorized Pro-Ject dealer or visit the official Pro-Ject Audio Systems webサイトで確認してください。ご自身でユニットの修理を試みないでください。保証が無効になる場合があります。