Pro-Ject Speed Box II

Accessory for Pro-Ject turntables lacking built-in electronic speed change

  • Sale
  • $ 159

A very useful accessory for most Pro-Ject turntables (excluding turntables listed below), that do not have built-in electronic speed change. The Speed Box II performs this change by the push of a button between 33 and 45 rpm. The quartz regulation and filter circuit gives a stable speed reference.

CAUTION: Debut III USB & Speed Box II are not compatible. Please do not use Speed Box II with following turntables:  Pro-Ject 1.2 E, Debut Phono, Debut Phono USB, Debut III E, 2Xperience Comfort*  (* electronic speed change 33/45 already built-in). 


  • Quartz-generated high precision electronic speed regulation  
  • Clean Quartz clock generated sinus wave voltage decoupled from mains interference  
  • Metal case shields the electronic from vibrational and electromagnetic nterference  
  • Small size allows installation close to record player  
  • * Electronic speed change between 33 and 45 r.p.m.  
  • ** 78 r.p.m. also possible after fitting accessory pulley  
  • All functions microprocessor controlled  
  • Outboard power supply included  
  • Available in black finish
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We want you to love every item you purchase from SKY by Gramophone. If you are not satisfied with your purchase, you may return items that are complete and like-new for any reason within 60 days. You may choose an exchange or a refund for the full amount of the items you purchased*. Refunds must be issued to the same credit card, debit card, gift certificate, or other form of payment used in the original transaction.

SKY by Gamophone is an authorized dealer for all products we carry, which means manufacturer warranties are valid on every product purchased from us.

*Restocking fees apply for furniture, as well as for products without original packaging, missing accessories, and not in new or like-new condition.

~ Shipping fees are factored into all furniture prices ~



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