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Comparison Pro-Ject Primary E vs Pro-Ject Essential III

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Pro-Ject Primary E
Pro-Ject Essential III
Pro-Ject Primary EPro-Ject Essential III
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Pickup
ModelOrtofon OM5SOrtofon OM10
TypeMMMM
Needle shapeconicalelliptical
Output level4.5 mV4 mV
Downforce1.5 – 2 g1.25 –1.75 g
Pickup weight5 g5 g
Tonearm
ModelPro-Ject 8.6EPro-Ject 8.6 D
Typeradialradial
Shapestraightstraight
Material
aluminium /aluminium/
aluminium /aluminium/
Tonearm effective length219 mm219 mm
Tonearm weight8 g8 g
Design
Drive unitbeltbelt
Speed controlmechanical (manual)mechanical (manual)
Cover
Phono stageis absentis absent
Features
Features
adjustable counterweight
anti-skating
adjustable counterweight
anti-skating
Specs
Frequency range20 – 22000 Hz
20 – 20000 Hz /± 2 дБ/
Signal to noise ratio65 dB66 dB
Knock ratio
0.29 % /— 33 rpm; 0.27% — 45 rpm/
0.6 % /45 rpm, 0.7% — 33 rpm/
Speed deviation
0.8 % /— 33 rpm; 0.7% — 45 rpm/
0.19 % /45 rpm, 0.21% — 33 rpm/
General
Power consumption5 W5 W
Base materialMDF/FibreboardMDF/Fibreboard
Platter materialMDFMDF
Platter size300 mm300 mm
Dimensions (WxDxH)420x330x112 mm420x330x112 mm
Turntable weight4 kg5 kg
Color
Added to E-Catalogjuly 2019august 2017

Model

Model of the pickup (cartridge) supplied with the player. The pickup is one of the most important parts of any vinyl player, the quality of the received sound largely depends on its quality. Knowing the name of the model, you can find detailed data on it and determine how satisfied you are with this particular cartridge.

Needle shape

The shape of the needle in the pickup (cartridge) that the player is equipped with.

Conical. It may also be called spherical. The simplest type of needles for vinyl players. Such needles are inexpensive, but the sound quality when using them is relatively low — due to the fact that the shape of the needle rather weakly matches the shape of the groove on the record.

Elliptical. Elliptical needles have a narrower shape than conical (spherical) needles, which improves contact and allows, in particular, more accurate reproduction of high frequencies, and also reduces record wear. Due to the good value for money, this option is very popular.

Linear. The most advanced variety: sharply sharpened needles of complex shape, following the contours of the grooves on the plate as accurately as possible and having the largest contact area among all types. The downside of this is the complexity in production and, accordingly, the high cost.

Output level

The signal level at the output of the pickup supplied with the player is, in fact, the power of the signal coming from the pickup to the phono stage. This parameter is necessary, first of all, in cases where the player is planned to be connected to an external phono stage: such equipment must be designed for the corresponding power of the signal coming from the pickup.

Downforce

The force of pressing the needle on the plate, which the complete pickup (cartridge) is designed for.

This force depends on the rigidity (compliance) of the needle: the greater the clamping force, the harder the cartridge, respectively, the less pliable it is. It is also believed that less pressing force wears out the record less, but it cannot be said that "light" cartridges are definitely better — there are many other nuances. So in fact, information about the pressing force of a complete pickup is needed mainly in case of its replacement. Usually, the pressing force provided by the arm of the turntable is regulated within these limits, so the new cartridge must also be rated for the same values of downforce — otherwise there is a chance that the turntable will not be able to correctly align.

Model

Model of the tonearm — the movable lever on which the pickup is attached — supplied with the turntable. The tone arm is responsible for the correct position of the needle and the accuracy of its movement along the grooves, which is critical for sound quality. Therefore, many music lovers try to clarify not only the general data on the tonearm, but also its specific features in each particular “turntable”; in order to be able to find this information, the name of the tonearm is given in the characteristics.

Frequency range

The range of frequencies that the player is capable of outputting when using a standard pickup.

The wider the frequency range, the more complete the sound picture will be, the less low and/or high frequencies will remain behind the scenes. However, from a practical point of view, it does not make sense to expand the range beyond the values \u200b\u200bof 16 – 22000 Hz — it is within these limits that the human ear hears the sound (and even then not everyone). In high-end audio equipment, including turntables, there are more extensive ranges; however, such characteristics are a kind of “side effect” of high-end technology that manufacturers use for advertising purposes.

In addition, we note that an extensive frequency range is not yet a guarantee of high-quality sound: the sound picture depends on many other parameters, from the amplitude-frequency response to extraneous interference.

Signal to noise ratio

The ratio between the useful signal and extraneous noise at the output of the player. It is also colloquially called "electrical noise" (although this is not entirely true).

The higher this indicator, the quieter the noise (it is impossible to completely eliminate them), the clearer the signal will be. In the case of turntables, the signal-to-noise ratio is considered to be at least 50 dB; and in the most high-end devices it can exceed 90 dB.

Note that this paragraph may additionally indicate the value of mechanical noise. Despite the similarity in name, this is a completely different indicator — it describes the volume of extraneous sounds produced by the motor, drive and other moving parts of the "turntable". Accordingly, for mechanical noise, the lower the decibels, the better. You can estimate its approximate level using special comparative tables.

Knock ratio

The maximum knock factor that the turntable is subject to under normal conditions.

Detonation in this case is called sound distortion associated with short-term periodic irregularities in the rotation of the disk. The lower the detonation coefficient, the lower the level of such distortions; it is believed that for audiophile-class equipment it should not exceed 0.2%, although in more modest models it may be higher.

Note that for different playback speeds, knock coefficients can also be different. Manufacturers in such cases may indicate the minimum value, despite the fact that it can be achieved not at the usual 33 rpm, but at 45 or even 78 rpm. Therefore, when choosing a high-end turntable, it's ok to clarify this point.

Speed deviation

The maximum deviation of the disc rotation speed from the nominal, which can occur during normal operation of the player. This indicator should not be confused with the detonation coefficient (see above): in this case, we are not talking about constant irregularities, but about the largest deviation possible in principle. Such a deviation can reach 1.5%, although for high-end equipment, 1% is considered the maximum value (and in general, the lower the better).
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