1. Pengenalan
Terima kasih kerana membeliasing the Blackstar St. James 50 EL34 Combo Amppengikat. ini amplifier is designed to deliver exceptional tube tone in a lightweight and portable package. It features two footswitchable channels, EL34 power tubes, a 1x12 inch Celestion Zephyr speaker, and Blackstar's Cab Rig DSP technology for direct recording and XLR output. This manual provides essential information for safe and optimal use of your amplebih hidup.
2. Arahan Keselamatan
- Baca Arahan: Always read and understand all safety and operating instructions before using this product.
- Kekalkan Arahan: Simpan arahan ini untuk rujukan masa hadapan.
- Perhatikan Amaran: Ikut semua amaran pada produk dan dalam arahan pengendalian.
- Air dan Kelembapan: Do not use this apparatus near water. Avoid exposure to rain or moisture.
- Pengudaraan: Pastikan pengudaraan yang betul. Jangan sekat sebarang bukaan pengudaraan.
- haba: Jangan letak berhampiran sumber haba seperti radiator, daftar haba, dapur atau radas lain (termasuk amppenghidup) yang menghasilkan haba.
- Perlindungan Kord Kuasa: Lindungi kord kuasa daripada berjalan atau tersepit.
- Pembersihan: Bersihkan hanya dengan kain kering.
- Servis: Rujuk semua servis kepada kakitangan perkhidmatan yang berkelayakan. Servis diperlukan apabila radas telah rosak dalam apa jua cara, seperti kord bekalan kuasa atau palam rosak, cecair telah tertumpah atau objek jatuh ke dalam radas, radas telah terdedah kepada hujan atau lembapan, tidak beroperasi seperti biasa. , atau telah digugurkan.
- Vol Tinggitage: tiub amplifiers operate at high voltages. Do not attempt to open the chassis or service the unit yourself.
3. Persediaan
3.1 Membongkar
Buang dengan berhati-hati amplifier from its packaging. Inspect for any signs of damage during transit. Retain the packaging for future transport or storage.
3.2 Sambungan Kuasa
- Memastikan ampSuis kuasa lifier berada dalam kedudukan 'MATI'.
- Connect the supplied IEC mains power cable to the MAINS INPUT on the rear panel of the amplebih hidup.
- Plug the other end of the power cable into a suitable grounded mains outlet.
3.3 Guitar Connection
Sambungkan gitar anda ke bicu INPUT pada panel hadapan menggunakan kabel instrumen berkualiti tinggi.
3.4 Footswitch Connection
Connect the supplied footswitch to the FOOTSWITCH jack on the rear panel. This allows remote switching between channels and activating the Channel II Boost.
3.5 Cab Rig Output Connection
The Cab Rig output provides advanced DSP cabinet simulation for direct recording or connection to a PA system.
- Audio USB: Connect a USB cable from the USB port on the rear panel to your computer for direct recording and access to the Cab Rig software.
- XLR D.I.: Use an XLR cable to connect the XLR D.I. output to a mixing console or audio interface.
- Beratur: Use a 1/4" jack cable to connect the LINE OUT to other line-level devices.
3.6 Effects Loop Connection
The effects loop allows integration of external effects pedals. Connect the SEND jack to the input of your effects unit and the RETURN jack from the output of your effects unit. Adjust the EFFECTS LOOP LEVEL switch for optimal signal matching.
4. Kawalan dan Fungsi
4.1 Kawalan Panel Hadapan

Imej ini memaparkan bahagian atas view of the Blackstar St. James 50 EL34 Combo Amplifier, highlighting the front panel controls. From left to right, you can see the Power and Standby switches, Master volume, Reverb knob, a three-band EQ (Treble, Middle, Bass), Volume II, Gain II, Channel II Boost switch, Volume I, Gain I, and the Input jack. The Power Reduction switch (50W/2W/SAG) is also visible.
- MASUKKAN: Sambungkan gitar anda di sini.
- CHANNEL I (Clean):
- GAIN I: Controls the input gain for Channel I.
- VOLUME I: Controls the overall output volume for Channel I.
- CHANNEL II (Overdrive):
- GAIN II: Controls the input gain for Channel II.
- VOLUME II: Controls the overall output volume for Channel II.
- CH. II BOOST: Activates a boost for Channel II, increasing gain and volume. Can be activated via footswitch.
- EQ (BASS, MIDDLE, TREBLE): Three-band equalizer to shape the amplifier's tone.
- REVERB: Mengawal tahap kesan gema digital terbina dalam.
- MASTER: Mengawal volum keluaran keseluruhan amplebih hidup.
- POWER REDUCTION (50W/2W/SAG): Memilih amplifier's output power (50W, 2W) or activates the 'SAG' mode for a more vintage, compressed feel.
- STANDBY: Melibatkan atau melepaskan amplifier's standby mode. Always use when powering on/off.
- KUASA: Suis kuasa utama untuk amplebih hidup.
4.2 Sambungan Panel Belakang

This image shows the rear panel of the Blackstar St. James 50 EL34 Combo Amplifier. Visible connections include the MAINS INPUT, FUSE, SPEAKER OUTPUTS (1x16 Ohm, 1x8 Ohm, 2x16 Ohm), EFFECTS LOOP (SEND, RETURN, LEVEL switch), CAB RIG OUTPUTS (USB, XLR D.I., LINE OUT), and FOOTSWITCH input.
- INPUT UTAMA: IEC power inlet for the mains cable.
- JAUH: Mains fuse holder. Replace only with the specified type and rating.
- OUTPUT UCAPAN: Connect external speaker cabinets here. Ensure correct impedance matching (1x16 Ohm, 1x8 Ohm, 2x16 Ohm).
- EFFECTS LOOP (SEND, RETURN, LEVEL): For connecting external effects pedals. The LEVEL switch adjusts the loop's sensitivity.
- CAB RIG OUTPUTS (USB, XLR D.I., LINE OUT): Outputs with integrated cabinet simulation.
- KAKI: Connect the supplied footswitch for remote control of channels and boost.
5. Arahan Operasi
5.1 Menghidupkan dan Mematikan
- Pastikan semua kawalan kelantangan ditetapkan kepada minimum.
- Flip the POWER switch to 'ON'. The power indicator will illuminate.
- Wait approximately 30-60 seconds for the tubes to warm up, then flip the STANDBY switch to 'ON'.
- To power off, flip the STANDBY switch to 'OFF', then the POWER switch to 'OFF'.
5.2 Penukaran Saluran
Use the front panel channel switch or the footswitch to toggle between Channel I (Clean) and Channel II (Overdrive). The CH. II BOOST can be engaged for additional gain on Channel II.
5.3 Pembentukan Nada
Adjust the BASS, MIDDLE, and TREBLE controls to sculpt your desired tone. The REVERB knob adds a studio-quality digital reverb effect.
5.4 Pengurangan Kuasa
The POWER REDUCTION switch allows you to select between 50W and 2W output, or engage the 'SAG' mode. The 2W setting is ideal for lower volume playing, while 'SAG' mode provides a more dynamic and compressed tube response.
5.5 Cab Rig Functionality
The Cab Rig DSP offers advanced cabinet simulation. Connect via USB to your computer and use the dedicated Blackstar software to customize cabinet, microphone, and room simulations. This allows for versatile direct recording and live sound options without needing a physical speaker cabinet.
6. Penyelenggaraan
6.1 Pembersihan
Bersihkan amplifier's exterior with a dry, soft cloth. Do not use abrasive cleaners or solvents. Ensure no liquids enter the ampcasis penguat.
6.2 Penggantian Tiub
The St. James 50 EL34 Combo uses vacuum tubes which have a finite lifespan. If you notice a decrease in performance, unusual noise, or loss of volume, tubes may need replacement. Tube replacement should only be performed by qualified service personnel due to high internal voltages. Refer to the specifications for tube types.
6.3 Penyimpanan
Simpan amplifier in a dry, temperature-controlled environment, away from direct sunlight and extreme temperatures. If storing for extended periods, cover the amplifier to protect it from dust.
7. Penyelesaian masalah
- Tiada Bunyi:
- Check power connections and ensure the POWER and STANDBY switches are 'ON'.
- Verify guitar and speaker cables are securely connected.
- Ensure all volume controls (Gain, Volume, Master) are not at minimum.
- Check the fuse on the rear panel. Replace if blown with the correct type.
- Poor Tone/Weak Sound:
- Laraskan tetapan EQ.
- Periksa kabel yang rosak.
- Ensure correct speaker impedance matching if using an external cabinet.
- Tubes may be worn out. Consult a qualified technician for tube testing/replacement.
- Excessive Hum/Noise:
- Pastikan salur keluar kuasa pembumian yang betul.
- Cuba salur keluar kuasa yang berbeza.
- Gerakkan ampjauhkan daripada peranti elektronik lain yang boleh menyebabkan gangguan.
- Check for faulty tubes or internal components.
If problems persist, contact Blackstar customer support or a qualified service technician.
8. Spesifikasi

This image shows the Blackstar St. James 50 EL34 Combo Amplifier from the front, highlighting its fawn Tolex covering and black grille cloth. The Blackstar logo is visible above the grille.
| Ciri | Perincian |
|---|---|
| Nombor Model | STJ50EL34C |
| Output Wattage | 50 Watts (switchable to 2 Watts) |
| Tiub Kuasa | EL34 |
| Penceramah | 1 x 12-inch Celestion Zephyr |
| Saluran | 2 (Clean, Overdrive with Boost) |
| Reverb | Studio-quality Digital Reverb |
| Gelung Kesan | Yes, with Level Control |
| Output Pelantar Cab | USB Audio, XLR D.I., Line Out |
| Dimensi Produk | 24.47 x 20.9 x 13.97 inci |
| Berat Barang | 1 pounds (Note: This weight seems incorrect for a tube combo amp and should be verified with manufacturer specifications) |
| warna | anak rusa |
9. Waranti dan Sokongan
For warranty information and technical support, please refer to the official Blackstar Amppemberitahuan website or contact your authorized Blackstar dealer. Keep your proof of purchase for warranty claims.






