1. Bubuka
Hatur nuhun pikeun meuliasing the Blackstar St. James 50 EL34 Combo Amppangagung. Ieu 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 amppangagung.
2. Parentah Kasalametan
- Baca pituduh: Always read and understand all safety and operating instructions before using this product.
- Ngajaga parentah: Tetep parentah ieu pikeun rujukan hareup.
- Perhatoskeun Perhatosan: Turutan sagala warnings on produk jeung dina parentah operasi.
- Cai sareng Uap: Do not use this apparatus near water. Avoid exposure to rain or moisture.
- Ventilasi: Pastikeun ventilasi anu leres. Ulah meungpeuk sagala bukaan ventilasi.
- Panas: Ulah nempatkeun deukeut sumber panas kayaning radiators, registers panas, kompor, atawa alat sejenna (kaasup ampLiifiers) anu ngahasilkeun panas.
- Perlindungan kabel listrik: Nangtayungan kabel kakuatan tina keur leumpang dina atawa pinched.
- beberesih: Ngabersihan ngan ku kaén garing.
- Palayanan: Rujuk sadayana jasa ka tanaga jasa anu mumpuni. Diperlukeun ngalayanan nalika aparatur ruksak ku cara naon waé, sapertos kabel catu daya atanapi colokan rusak, cairan tumpah atanapi barang murag kana aparatur, aparatur parantos kakeunaan hujan atanapi lembab, henteu beroperasi normal. , atawa geus turun.
- Luhur Voltage: tabung amplifiers operate at high voltages. Do not attempt to open the chassis or service the unit yourself.
3. Setélan
3.1 Ngabongkar bungkusan
Ati-ati ngaleupaskeun amplifier from its packaging. Inspect for any signs of damage during transit. Retain the packaging for future transport or storage.
3.2 Sambungan Daya
- Pastikeun ampSaklar daya lifier aya dina posisi 'OFF'.
- Connect the supplied IEC mains power cable to the MAINS INPUT on the rear panel of the amppangagung.
- Plug the other end of the power cable into a suitable grounded mains outlet.
3.3 Guitar Connection
Connect your guitar to the INPUT jack on the front panel using a high-quality instrument cable.
3.4 Sambungan Saklar Suku
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.
- Jalur Kaluar: 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. Kontrol jeung Fungsi
4.1 Kadali Panel hareup

Gambar ieu némbongkeun bagian luhur 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.
- input: Sambungkeun gitar anjeun didieu.
- 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 ampnada sora liifier.
- REVERB: Ngontrol tingkat éfék reverb digital bawaan.
- Master: Ngadalikeun volume kaluaran sakabéh tina amppangagung.
- POWER REDUCTION (50W/2W/SAG): Milih anu amplifier's output power (50W, 2W) or activates the 'SAG' mode for a more vintage, compressed feel.
- ANTOSAN: Engages or disengages the amplifier's standby mode. Always use when powering on/off.
- kakuatan: Saklar daya utama pikeun amppangagung.
4.2 Sambungan Panel Rear

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.
- Sekering: Mains fuse holder. Replace only with the specified type and rating.
- OUTPUT SPEAKER: 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.
- KUKUH: Connect the supplied footswitch for remote control of channels and boost.
5. Parentah Operasi
5.1 Ngahurungkeun sareng mareuman
- Ensure all volume controls are set to 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 Ngalihkeun 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 Ngabentuk 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 Pangurangan kakuatan
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. Pangropéa
6.1 beberesih
Ngabersihan amplifier's exterior with a dry, soft cloth. Do not use abrasive cleaners or solvents. Ensure no liquids enter the ampchassis lifier.
6.2 Panggantian Tabung
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 Panyimpenan
Nyimpen éta 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. Cara ngungkulan
- Henteu aya sora:
- 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:
- Saluyukeun setelan EQ.
- Pariksa kabel faulty.
- 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:
- Pastikeun grounding ditangtoskeun tina stop kontak listrik.
- Coba colokan listrik anu béda.
- Pindahkeun amplifier away from other electronic devices that may cause interference.
- Check for faulty tubes or internal components.
If problems persist, contact Blackstar customer support or a qualified service technician.
8. Spésifikasi

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.
| Fitur | Rincian |
|---|---|
| Nomer modél | STJ50EL34C |
| Kaluaran Wattage | 50 Watt (tiasa dirobah janten 2 Watt) |
| Tabung Daya | EL34 |
| Speaker | 1 x 12-inch Celestion Zephyr |
| Saluran | 2 (Clean, Overdrive with Boost) |
| Reverb | Studio-quality Digital Reverb |
| Pangaruh Loop | Yes, with Level Control |
| Cab Rig Kaluaran | USB Audio, XLR D.I., Line Out |
| Dimensi produk | 24.47 x 20.9 x 13.97 inci |
| Item Beurat | 1 pounds (Note: This weight seems incorrect for a tube combo amp and should be verified with manufacturer specifications) |
| Warna | Ungu |
9. Garansi jeung Rojongan
Kanggo inpormasi garansi sareng dukungan téknis, mangga tingal Blackstar resmi Amplifikasi website or contact your authorized Blackstar dealer. Keep your proof of purchase for warranty claims.






