The Speed Box S offers a functional and convenient upgrade for many Pro-Ject turntables with a 16V AC motor that do not already have built-in speed control.
The Speed Box S acts as an AC generator for the turntable, replacing the fluctuant supply from a normal 16V power supply and regulating it. The result is a clean power signal that allows the motor to perform optimally. The added convenience is that the Speed Box S can shift frequency, for easy changing between 33 and 45RPM at the push of a button.
Inside, the Speed Box S makes use of high-quality materials in the quartz-controlled oscillator and filter circuits. Externally it is stylish, compact and minimal - matching any other Box Design S Line component.
Connection is simple, as the Speed Box S is supplied with a link cable that plugs into your turntable instead of the normal power supply. There is also a wide range of compatibility (see below), and in some cases the Speed Box S can even add 78RPM compatibility, when partnered with a special Speed Box Pulley.
- Electronic speed change between 33 and 45RPM (see below)
- 78RPM also possible after fitting accessory pulley (see below)
- Replaces the existing 16V turntable power supply
- Quartz-generated high precision electronic speed regulation
- Creates a cleaner AC mains signal for your turntable
- Allows the motor to run more efficiently and with less resonance
Below is a list of compliant turntables...
Works with Speed Box S (and turns at 78RPM with additional pulley):
- Debut II (later versions with 16V power supply)
- Debut III
- Debut S/E3
- 1.2 (later versions with 16V power supply)
- 1 Xpression
- 1 Xpression II
- 1-Xpression III
- RPM 4 (later versions with 16V power supply)
- RPM 5
Works with Speed Box S (33 and 45RPM only):
- 2.9 (later versions with 16V power supply)
- 2 Xperience (non-DC versions)
- 2 Xperience Classic (non-DC versions)
- 6 Perspex (non-DC versions)
- RPM 1.3 (Genie 3)
- RPM 9
- RPM 9.1X
- RPM 9.2
- RPM 10
- RPM 10.1
The Speed Box S will not work with any turntable that has a captive mains cable.
The Speed Box S will not work with any turntable that has a DC power supply.
The Speed Box S will not work with any turntable that has speed control or a USB phono stage built-in.
|Input Power:||18V DC (Supplied PSU)|
|Output Power:||16V AC / 190mA (3W max.)|
|Nominal Speeds:||33 / 45 RPM
78 RPM with Optional Pulley
|Speed Stability:||± 0.001%|
|Power Cable Length:||Approx. 400mm
(Turntable to Speedbox)
|Dimensions:||103 x 36 x 104mm
103 x 36 x 115mm (Incl. Sockets)
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