504 - Turntable DUAL - Free user manual and instructions
Find the device manual for free 504 DUAL in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Brand | Dual |
| Model | 504 |
| Product Type | Belt-drive turntable |
| Drive System | Belt drive with synchronous motor |
| Speeds | 33 1/3, 45 rpm (manual speed change) |
| Platter Material | Die-cast aluminum with rubber mat |
| Platter Diameter | 12 inches (305 mm) |
| Tonearm Type | S-shaped, gimbal suspension, adjustable tracking force and anti-skating |
| Cartridge Type | Moving magnet (typically Dual DN 147) |
| Dimensions (W x D x H) | 420 x 360 x 140 mm (with dust cover) |
| Weight | 6 kg |
| Power Supply | 110-240 V AC, 50/60 Hz (external transformer) |
| Power Consumption | 5 W |
| Output Level | 2-5 mV (phono output) |
| Wow and Flutter | < 0.1% (WRMS) |
| Signal-to-Noise Ratio | > 60 dB (IEC A-weighted) |
| Functions | Play, manual lift/return, speed selection |
| Maintenance | Clean stylus with brush; lubricate motor spindle yearly; replace belt every 5-10 years |
| Safety | Do not touch stylus with power on; keep away from moisture; unplug before cleaning |
| Spare Parts | Stylus (DN 147), drive belt, motor, tonearm assembly |
| Reparability | User-replaceable stylus and belt; other parts serviced by technician |
| General Information | Manufactured in Germany, vintage high-fidelity turntable from the 1970s |
Frequently Asked Questions - 504 DUAL
How do I change the speed on the Dual 504?
The speed is changed manually by moving the belt to different pulley grooves. Lift the platter, reposition the belt on the motor pulley (smaller for 45 rpm, larger for 33 1/3 rpm), and replace the platter.
What cartridge does the Dual 504 use?
The Dual 504 typically uses a moving magnet cartridge, commonly the Dual DN 147. It can also accept standard 1/2-inch mount cartridges with appropriate headshell.
How do I replace the stylus?
To replace the stylus, gently pull out the old stylus from the cartridge body. Insert the new stylus until it clicks into place. Ensure the stylus is aligned with the cartridge grip.
Why is my turntable producing a humming noise?
Hum can be caused by poor grounding. Check that the ground wire from the turntable is connected to the amplifier's ground terminal. Also ensure the phono input is used, not a line input, unless a phono preamp is present.
How do I adjust the tracking force?
The tracking force is adjusted by turning the counterweight at the rear of the tonearm. Rotate it to set the desired force (typically 1.5-2.5 grams for the DN 147). Use a stylus force gauge for accuracy.
How do I set the anti-skating?
The anti-skating dial is located near the tonearm base. Set it to the same value as the tracking force. This compensates for the inward force on the tonearm during playback.
What is the proper way to clean the vinyl record?
Clean records with a carbon fiber brush before each play to remove dust. For deeper cleaning, use a record cleaning solution and a soft microfiber cloth, wiping in circular motions. Avoid excess moisture.
How often should I replace the drive belt?
The drive belt should be replaced every 5-10 years, or if you notice speed inconsistencies or wobble. Use a genuine Dual replacement belt for best performance.
Can I connect the turntable to a modern amplifier?
Yes, but you need a phono preamp if your amplifier does not have a dedicated phono input. The Dual 504 outputs a phono-level signal, which requires equalization (RIAA) before line-level inputs.
How do I remove the platter?
Gently lift the platter straight up. It may be tight; if so, use the two holes on the platter to rock it slightly. Do not force it. After removing, you can access the belt and motor.
User questions about 504 DUAL
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Turntable in PDF format for free! Find your manual 504 - DUAL and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. 504 by DUAL.
USER MANUAL 504 DUAL
Manual assistant
Powered by Anthropic
Waiting for your message
Product information
Brand : DUAL
Model : 504
Category : Turntable