Red4
The Red4 is a moving iron phono cartridge from Grado's Prestige Series, offered in standard half-inch mount and P-mount versions. It has an elliptical diamond stylus and a high 4 mV output, so it suits a wide range of turntables and phono stages.
- Moving iron cartridge from the Grado Prestige Series
- Bonded elliptical diamond on an aluminum cantilever
- 4 mV output; 10k–47k ohm input load
- Standard 1/2" mount or P-mount versions
- User-replaceable stylus, interchangeable across Prestige Series
- 5N OCC copper signal path, cryogenically treated
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Red4 is an entry-level model in the Prestige Series that uses Grado's moving iron design, based on the flux-bridger principle. The coils stay fixed while the moving mass is kept very low. The body is die-injection molded, and the internal signal path uses 5N OCC copper. Each cartridge is cryogenically treated and internally damped to reduce resonance.
The stylus is a bonded elliptical diamond on an aluminum cantilever. The stylus assembly can be replaced by the user, and all Prestige Series styli are interchangeable between models. Output is 4 mV, so the cartridge is intended to work with a broad range of phono stages. It is described as balanced and controlled, with a smooth top end, a present midrange and defined low frequencies.
It is available in two mounting versions: a standard 1/2-inch screw mount and a P-mount that plugs straight into compatible tonearms. Recommended tracking force is 1.6 to 1.9 grams, and the cartridge weighs 6 grams. Input load is 10k to 47k ohms.
Спецификации
- Марка
- Grado
- Модел
- Red4
- Категория
- DJ техника › Игли и глави за грамофон
Audio
- Output
- 4 mV @ 5 CMV (45 degrees)
- Frequency response
- 10-55,000 Hz
- Channel separation
- Average 25 dB, 10-30,000 Hz
- Compliance
- 20 µm/mN
Electrical
- Input load
- 10k - 47k ohms
- Inductance
- 50 mH
- DC resistance
- 660 ohms
Stylus
- Stylus
- Diamond, elliptical
- Cantilever
- Aluminum
- Generator type
- Moving iron
- Stylus replacement
- User-replaceable
Setup
- Tracking force
- 1.6 - 1.9 grams
- Mounting
- P-mount or 1/2" screw mount
- Mount options
- Standard Mount, P-Mount
Physical
- Cartridge weight
- 6 grams
- Housing
- Die-injection molded
- Internal wiring
- 5N OCC copper
- Series
- Prestige Series