1. Inngangur
Þakka þér fyrir kaupinasing the Blackstar St. James 50 EL34 Combo Amplifier. Þetta 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 amplíflegri.
2. Öryggisleiðbeiningar
- Lestu leiðbeiningar: Always read and understand all safety and operating instructions before using this product.
- Geymdu leiðbeiningar: Geymdu þessar leiðbeiningar til síðari viðmiðunar.
- Takið eftir viðvörunum: Fylgdu öllum viðvörunum á vörunni og í notkunarleiðbeiningunum.
- Vatn og raki: Do not use this apparatus near water. Avoid exposure to rain or moisture.
- Loftræsting: Tryggið góða loftræstingu. Ekki loka neinum loftræstiopum.
- Hiti: Ekki setja nálægt hitagjöfum eins og ofnum, hitaspjöldum, eldavélum eða öðrum tækjum (þ.m.t. amplyftara) sem framleiða hita.
- Rafmagnssnúruvörn: Verndaðu rafmagnssnúruna gegn því að gengið sé á hana eða hún klemmi hana.
- Þrif: Hreinsið aðeins með þurrum klút.
- Þjónusta: Látið alla þjónustu til hæfs þjónustufólks. Þjónusta er nauðsynleg þegar tækið hefur skemmst á einhvern hátt, svo sem að rafmagnssnúra eða kló er skemmd, vökvi hefur hellst niður eða hlutir hafa fallið inn í tækið, tækið hefur orðið fyrir rigningu eða raka, virkar ekki eðlilega , eða hefur verið fellt niður.
- Hár binditage: Slöngur amplifiers operate at high voltages. Do not attempt to open the chassis or service the unit yourself.
3. Uppsetning
3.1 Upptaka
Fjarlægðu varlega amplifier from its packaging. Inspect for any signs of damage during transit. Retain the packaging for future transport or storage.
3.2 Rafmagnstenging
- Tryggðu að amplifier's power switch is in the 'OFF' position.
- Connect the supplied IEC mains power cable to the MAINS INPUT on the rear panel of the amplíflegri.
- Plug the other end of the power cable into a suitable grounded mains outlet.
3.3 Tenging við gítar
Connect your guitar to the INPUT jack on the front panel using a high-quality instrument cable.
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.
- USB hljóð: 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.
- Lína út: Use a 1/4" jack cable to connect the LINE OUT to other line-level devices.
3.6 Tenging við áhrifalykkju
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. Stjórntæki og aðgerðir
4.1 Stjórnborð á framhlið

Þessi mynd sýnir efsta 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.
- INNGANGUR: Tengdu gítarinn þinn hingað.
- 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.
- BAKA: Controls the level of the built-in digital reverb effect.
- MEISTARI: Stjórnar heildarúttaksrúmmáli amplíflegri.
- POWER REDUCTION (50W/2W/SAG): Velur amplifier's output power (50W, 2W) or activates the 'SAG' mode for a more vintage, compressed feel.
- BANDBY: Tengir eða aftengir amplifier's standby mode. Always use when powering on/off.
- POWER: Main power switch for the amplíflegri.
4.2 Tengingar að aftan

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.
- AÐINGIÐ: IEC power inlet for the mains cable.
- ÖRYGGI: Mains fuse holder. Replace only with the specified type and rating.
- ÚTGÖNGUR hátalara: 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.
- FÓTROFI: Connect the supplied footswitch for remote control of channels and boost.
5. Notkunarleiðbeiningar
5.1 Kveikt og slökkt
- 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 Rásarskipti
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 Tone Shaping
Adjust the BASS, MIDDLE, and TREBLE controls to sculpt your desired tone. The REVERB knob adds a studio-quality digital reverb effect.
5.4 Power Reduction
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. Viðhald
6.1 Þrif
Hreinsaðu amplifier's exterior with a dry, soft cloth. Do not use abrasive cleaners or solvents. Ensure no liquids enter the amplifier undirvagn.
6.2 Tube Replacement
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 Geymsla
Geymdu amplifier in a dry, temperature-controlled environment, away from direct sunlight and extreme temperatures. If storing for extended periods, cover the amplyftara til að vernda það fyrir ryki.
7. Bilanagreining
- Ekkert hljóð:
- 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:
- Stilltu EQ stillingar.
- Athugaðu hvort snúrur séu gallaðar.
- Ensure correct speaker impedance matching if using an external cabinet.
- Tubes may be worn out. Consult a qualified technician for tube testing/replacement.
- Mikill suður/hávaði:
- Gakktu úr skugga um að rafmagnsinnstungan sé rétt jarðtengd.
- Prófaðu aðra rafmagnsinnstungu.
- Færðu ampHreinsið fjarri öðrum rafeindatækjum sem gætu valdið truflunum.
- Check for faulty tubes or internal components.
If problems persist, contact Blackstar customer support or a qualified service technician.
8. Tæknilýsing

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.
| Eiginleiki | Smáatriði |
|---|---|
| Gerðarnúmer | STJ50EL34C |
| Úttak Wattage | 50 Watts (switchable to 2 Watts) |
| Afl rör | EL34 |
| Ræðumaður | 1 x 12-inch Celestion Zephyr |
| Rásir | 2 (Clean, Overdrive with Boost) |
| Ómur | Studio-quality Digital Reverb |
| Áhrif lykkja | Yes, with Level Control |
| Úttak stýrishúss | USB Audio, XLR D.I., Line Out |
| Vörumál | 24.47 x 20.9 x 13.97 tommur |
| Þyngd hlutar | 1 pounds (Note: This weight seems incorrect for a tube combo amp and should be verified with manufacturer specifications) |
| Litur | Fawn |
9. Ábyrgð og stuðningur
For warranty information and technical support, please refer to the official Blackstar Amplification website or contact your authorized Blackstar dealer. Keep your proof of purchase for warranty claims.






