Denon DL-103 Phono Cartridge
330,00 €
The Denon DL-103 is a moving-coil phono cartridge for a carefully matched vinyl stereo system. Its 0.3 mV output requires an MC phono stage or a suitable step-up transformer. The recommended 2.5 g tracking force provides a clear starting point for tonearm setup. Its relatively low compliance means that the tonearm’s effective mass is an important consideration.
The Denon DL-103 phono cartridge is a low-output moving-coil (MC) model for vinyl records. It is intended for an audio system capable of accepting a 0.3 mV MC signal. Its 20 Hz-45 kHz frequency range covers the audible spectrum and extends beyond it. The cartridge weighs 8.5 g, which must be taken into account when balancing the tonearm.
This model was originally developed for radio broadcasting. It is a considered choice for a carefully matched stereo system, rather than a direct replacement for a high-output MM cartridge. Suitable signal amplification, loading and tonearm matching are required.
Who This Cartridge Is For
The DL-103 is suitable for listeners whose systems have an input designed for a low-output MC signal. A standard line-level input does not provide the amplification and equalisation required for a phono cartridge signal.
The cartridge has a compliance of 5 × 10-6 cm/dyne. This is a relatively low value, so the effective mass of the tonearm is an important consideration. An unsuitable cartridge and tonearm combination can shift the mechanical resonance into an undesirable range. Matching should therefore be assessed before installation rather than treating the cartridge as universally interchangeable with any existing model.
Moving-Coil Construction
The moving-coil principle allows the cartridge to generate an electrical signal as its stylus follows the record groove. The DL-103 has an output impedance of 40 ohms. This value is relevant when choosing the load presented by a phono stage or step-up transformer.
If the amplifier already has a phono input suitable for low-output MC cartridges, a separate phono stage or step-up transformer is not required. The important point is that the selected input must be designed for this cartridge type and signal level.
Connecting It to an Audio System
The simplest signal path is a turntable fitted with the cartridge and connected to an MC phono stage. The line-level output of the phono stage is then connected to a stereo amplifier. A separate phono stage is unnecessary if the amplifier has an MC input suitable for the DL-103’s low-level output.
Another option is to use a step-up transformer before an MM phono stage. The transformer and MM input must work together to present a suitable load to the cartridge. A load resistance of at least 100 ohms is recommended.
The presence of a socket labelled “phono” on an amplifier is not enough by itself. An MM input will not normally provide the required gain for such a low-level signal. When choosing the connection path, consider the cartridge type, its output level and the load it will see.
Tonearm Matching and Setup
The recommended tracking force is 2.5 g. The permitted adjustment range is 2.3-2.7 g, corresponding to the stated 2.5 g ± 0.3 g recommendation. It is sensible to begin at the nominal value instead of relying solely on the markings on the tonearm’s adjustment dial.
First balance the tonearm with the cartridge installed. Then check the tracking force with a stylus-force gauge positioned at record-surface height. Set the anti-skating or lateral-force compensation according to the tonearm manufacturer’s instructions.
The cartridge must also be aligned accurately in the tonearm. Use an alignment protractor intended for the turntable or tonearm. An incorrect angle can impair groove tracking and increase distortion as the stylus approaches the end of a record side.
Turntable Placement and Signal Protection
Place the turntable on a firm, level surface that is protected from vibration. Keep the cable carrying the weak 0.3 mV signal away from power cables and transformers. Connect the grounding lead in accordance with the connection arrangements provided by the turntable and phono-stage manufacturers. Careful placement and cable routing help prevent the low-level cartridge signal from being unnecessarily affected before amplification.
Use in Stereo and Home Cinema Systems
The cartridge is primarily intended as an analogue stereo source. In a home cinema system, the signal must first pass through an input or phono stage suitable for a low-output MC cartridge. The resulting line-level output can then be connected to an available analogue input on the AV receiver.
The cartridge does not produce a line-level output on its own and is not a multichannel connection. The AV receiver determines the listening mode and any subsequent signal processing after the cartridge signal has been correctly amplified and equalised.
Technical Specifications
| Model | Denon DL-103 |
|---|---|
| Type | Low-output moving-coil MC phono cartridge |
| Frequency range | 20 Hz-45 kHz |
| Output voltage | 0.3 mV |
| Output impedance | 40 ohms |
| Recommended load resistance | 100 ohms or more |
| Compliance | 5 × 10-6 cm/dyne |
| Recommended tracking force | 2.5 g ± 0.3 g |
| Tracking-force range | 2.3-2.7 g |
| Cartridge weight | 8.5 g |
FAQ
Can the cartridge be connected directly to an MM phono input?
No. An MM input alone does not provide enough gain for a signal at this level. Use a separate MC phono stage or a suitable step-up transformer placed before the MM input.
What needs to be changed when replacing an MM cartridge?
The tonearm must be rebalanced, the tracking force must be set again, and the cartridge alignment must be checked. The audio system must also use a signal path capable of accepting the output level of an MC cartridge.
How should I choose a suitable tonearm?
Consider the cartridge weight and compliance together with the tonearm’s effective mass. The relationship between these parameters determines the mechanical resonance range of the cartridge and tonearm system.
Is a step-up transformer essential?
No. It is not needed when using a phono stage designed for low-output MC cartridges. A transformer is required when the chosen signal path runs through an MM phono stage.
Will the cartridge work with an AV receiver?
Yes, provided that its signal is correctly amplified and equalised first. The output of the suitable phono stage can then be connected to an analogue line-level input on the receiver.
What load resistance should I select on an MC phono stage?
Set the load resistance to at least 100 ohms. If the phono stage offers several selectable values, choose 100 ohms or a higher setting.
