Ortofon SPU Classic N MC Cartridge

The Ortofon SPU Classic N is a moving-coil cartridge with a nude spherical stylus in a housing-free SPU-N format – the classic SPU sound for universal tonearms.

Like all N models, the Classic N comes without its own SPU housing and is mounted via an SPU-N adapter – at 13 g, this makes it considerably lighter than the integrated G models and friendlier to your tonearm.

Why the SPU Classic N?

The Classic N brings the historic, warm SPU character to a light cartridge body – ideal for anyone whose tonearm is too light for the heavy, integrated G models. The nude spherical stylus is forgiving when it comes to alignment.

What you'll hear

The familiar, punchy SPU sound with warm mids and rich bass, in a housing format that fits lighter to medium-mass tonearms better than the classic SPU-G models.

Who is the SPU Classic N for?

For anyone who wants the SPU sound but has a lighter or medium-mass universal tonearm. Straight talk: without the SPU-N adapter, the Classic N can't be mounted – factor that into the purchase. If you want more resolution, go for the elliptical version, the Classic N E.

Our verdict

The SPU character for tonearms that don't get along with the heavy G models – same sound, less weight, but an adapter is mandatory.

Technical specifications

• Type: MC cartridge without housing, requires SPU-N adapter
• Stylus tip: Nude Spherical, R 18 µm
• Output voltage (1 kHz, 5 cm/s): 0.2 mV
• Internal impedance (DC): 2 ohms
• Recommended load impedance: 10 ohms
• Channel separation (1 kHz): 20 dB
• Stylus compliance (dynamic, lateral): 8 µm/mN
• Frequency response: 20–20,000 Hz (±3 dB)
• Tracking force: 4.0 g (3.0–5.0 g)
• Tracking angle: 20°
• Coil wire: OFC (oxygen-free copper)
• Weight: 13 g (without adapter)

Frequently asked questions

Do I need a special adapter for the Classic N?

Yes, the SPU-N adapter, for the mechanical mount and the SME/bayonet connection. Without the adapter, the Classic N cannot be installed.

What's the difference between the Classic N and the Classic G MKII?

Electrically they're nearly identical, but the Classic N comes without an integrated SPU housing (13 g instead of 28 g) and so fits lighter tonearms – at the cost of needing the SPU-N adapter.

Why buy the Ortofon SPU Classic N from HD Zürisee?

Because we check whether your tonearm, adapter and cartridge go together before you order. Mauri mounts and aligns it for you in Wädenswil.

Goes well with

For the right adapter, turntable accessories, for the right amplification, phono preamps, and more from the world of vinyl.