Connecting a turntable to speakers or an amplifier is usually straightforward, but one important detail determines whether the setup will work correctly: does your system have a phono preamp?
Answer 3 quick questions to see exactly what you need.
A turntable cartridge produces a low-level PHONO signal that needs amplification and RIAA equalization before it can be sent to a standard audio input. That job can be handled by a preamp built into the turntable, an external phono preamp, or a PHONO input on your amplifier or speakers.
Use the compatibility checker above to identify what your setup needs. The guide below explains the different combinations and how to connect them.
The Three Things You Need to Check
1. Does your turntable have a built-in phono preamp?
Check the turntable’s specifications or look for a switch labeled PHONO / LINE or PREAMP ON / OFF.
- LINE: The built-in phono preamp is active and the turntable sends a line-level signal.
- PHONO: The built-in preamp is bypassed and the turntable sends its raw phono signal.
- No switch: Check the manufacturer’s specifications to confirm whether a built-in preamp is included.
If your turntable has a built-in preamp switched on, you normally do not need another one.
2. What are you connecting it to?
There are three common setups:
- Powered speakers: Speakers with their own built-in amplifier. They usually accept a line-level signal through RCA or AUX inputs.
- Passive speakers with an amplifier or receiver: The amplifier powers the speakers and provides the audio inputs.
- Soundbar, TV or Bluetooth speaker: These devices may require a specific cable, adapter, wireless transmitter or additional audio equipment.
3. Does your equipment have a PHONO input?
If your turntable does not have an active built-in preamp, check the amplifier, receiver or powered speaker for an input specifically labeled PHONO.
A PHONO input includes its own phono preamp. AUX, CD, TAPE and LINE inputs do not normally provide this function.
If there is no compatible PHONO input and your turntable has no active preamp, you will need an external phono preamp.
Common Turntable and Speaker Combinations
Turntable with a built-in preamp + powered speakers
This is one of the simplest combinations.
Set the turntable to LINE and connect its RCA outputs to the powered speakers’ RCA or compatible line-level inputs.
Connection:
Turntable (LINE) → Powered speakers (LINE / AUX)
No external phono preamp is required.
Turntable with a built-in preamp + passive speakers and receiver
Connect the turntable to a standard line-level input on the receiver, such as AUX, CD or TAPE.
Do not connect the turntable’s LINE output to the receiver’s PHONO input. That would send an already equalized signal through the receiver’s phono stage again, potentially causing excessive volume and distortion.
Connection:
Turntable (LINE) → Receiver (AUX / CD / TAPE) → Passive speakers
Turntable without a preamp + receiver with a PHONO input
Your receiver already has the phono stage needed by the turntable.
Connect the RCA cables to the PHONO input and connect the turntable’s ground wire to the receiver’s grounding terminal if provided.
Connection:
Turntable (PHONO) → Receiver (PHONO) → Passive speakers
Check that the receiver’s PHONO input supports your cartridge type, particularly if you use a moving-coil cartridge.
Turntable without a preamp + powered speakers without a PHONO input
This combination requires an additional component.
Most powered speakers accept a line-level signal rather than the raw signal from a turntable cartridge. Add an external phono preamp between the two.
Connection:
Turntable → External phono preamp → Powered speakers (LINE / AUX)
See our guide to the best phono preamps for suitable options.
Turntable without a preamp + soundbar, TV or Bluetooth speaker
These setups usually require a phono preamp before the signal reaches the soundbar, TV or wireless transmitter.
The exact connection depends on the inputs available on your equipment. You may also need an audio converter or Bluetooth transmitter.
Follow the appropriate guide:
- How to connect a turntable to a soundbar
- How to connect a turntable to a TV
- How to connect a turntable to a Bluetooth speaker
- How to connect a turntable to Sonos
Frequently Asked Questions
How do I know if my turntable has a built-in preamp?
Check the manufacturer’s specifications or look for a PHONO / LINE switch on the back or underside of the turntable. If the switch is set to LINE, the built-in preamp is generally active. If you cannot find a switch, check the manual for the model’s output configuration.
What if I’m still not sure whether I need a phono preamp?
Do not buy one until you have checked both the turntable and the receiving equipment. Confirm whether the turntable has a built-in preamp and whether your amplifier or powered speakers have a PHONO input.
Using an unnecessary external phono preamp can cause problems if it is connected in series with another active phono stage.
Can I connect a turntable directly to powered speakers?
Yes, if the turntable has a built-in phono preamp switched to LINE and the speakers have a compatible line-level input. If neither the turntable nor speakers provide a phono stage, you need an external phono preamp.
Can I use a receiver’s PHONO input if my turntable has a built-in preamp?
Yes, if your turntable allows you to switch its built-in preamp off or select PHONO output. Do not send a LINE-level signal into a PHONO input.
Can using two phono preamps at once damage my equipment?
It normally will not damage the equipment, but it can cause excessive amplification, incorrect equalization and audible distortion. Use only one phono stage in the signal chain.
What is the difference between PHONO and LINE?
PHONO is the low-level signal produced by a turntable cartridge. It needs amplification and RIAA equalization. LINE is a stronger, equalized signal that standard audio inputs such as AUX, CD and TAPE are designed to accept.
Final Thoughts
Most turntable compatibility problems come down to one question: where is the phono preamp in your system?
If your turntable has one, use its LINE output. If your amplifier has a PHONO input, you can usually use that instead. If neither component provides a phono stage, add an external preamp between the turntable and your speakers or receiver.
Once you identify the right signal path, connecting your turntable is much easier.