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The Phono Box S from Pro-Ject Audio Systems offers un-rivalled performance and unique flexibility for a very competitive price.
The dual-mono configuration, audiophile amplifier modules and polypropylene capacitors allow for a dynamic soundstage with full transparency, analogue warmth, bass texture, detailed resolution and purity across all audible frequencies. The sturdy casework and external power supply further help to reduce the effects of external interference.
Where the Phono Box S stands apart at the price is in its various setting adjustments. Using the dip-switches underneath the chassis (there are two sets - one for each channel), it's possible to more accurately match the turntable cartridge's technical characteristics. The dip switches allow for various Gain, Impedance and Capacitance settings. The switchable sub-sonic filter further helps tailor the sound, rolling off any problematic rumble that may appear underneath 20Hz.
Thanks to Pro-Ject's extensive knowledge and history of producing affordable audiophile products, the Phono Box S is a perfect combination of style, performance and value.
|Input Impedance Settings:||MM: 47kΩ
MC: 10Ω, 100Ω, or 1KΩ
|Capacitance Settings:||100pF, 200pF, 320pF or 420pF|
|Gain Settings:||40dB, 43dB, 60dB or 63dB|
|Noise Floor:||MM: 86dB (94dB - A Weighted)
MC: 68dB (75dB - A Weighted)
|RIAA Accuracy:||20Hz - 20kHz / max. 0.4 dB|
|Subsonic Filter:||-12dB at 20Hz|
|Input:||1x Pair RCA / Phono Sockets|
|Line-Level Output:||1x Pair RCA / Phono Sockets|
|Power Consumption:||18V / 80mA DC|
|Outboard PSU:||18V / 500mA DC (UK Plug)|
|Dimensions:||103 x 36 x 104mm
103 x 36 x 115mm (Incl. Sockets)
|Weight:||570g (Without PSU)|
What is a Phono Stage?
A phono stage takes the low-level electrical signal, generated by the pick-up cartridge on your turntable, and amplifies it to LINE level. When it's at LINE level, you can connect the outputs of your phono stage to any LINE or AUX input on your amplifier. If you do not have a phono stage, when you connect the turntable to your amplifier the signal will be very quiet, and if you turn it up to normal listening level it will sound distorted and noisy.
You do not need an external phono stage if...
In both of these cases, the built-in phono stage needs to support your pick-up cartridge (see below).
Do I need a specific type of Phono Stage?
Yes. You need to buy a phono stage that suits your particular type of cartridge. If you have a Moving Magnet (MM) cartridge, you need an MM-compatible phono stage. If you have a Moving Coil (MC) cartridge, you need an MC-compatible phono stage. This is due to the different output levels of MM and MC cartridges (as MC cartridges are so quiet, they require more Gain).
What do all of the Setting adjustments mean?
Cartridges are complex micro-mechanical devices, and the way a phono stage treats the electrical signal they generate can dramatically impact the end sound quality. When setting adjustments are available, the one adjustment you always need to check, regardless of the cartridge, is Gain. The level of Gain directly affects all cartridges, as the ultimate task of a phono stage is to amplify the electrical signal.
After Gain, the type of Settings you need to adjust are dependent on the cartridge used...
Some phono stages have other Settings available, which are not cartridge dependent. For example...
For more help and advice visit our Tech Support section
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