Pro-Ject MC Step-Up Box S3 Passive Step-Up Transformer

A Sound Upgrade for Your Mc Cartridge

The output level of MC cartridges is very low, compared to a MM (Moving Magnet) one it is about 10x lower, which means, you need a special phono amplifier. A higher gain is needed to utilize the signals, which can result in a higher noise level and distortion. The Pro-Ject MC Step Up Box S3 is the solution.

Lively, Dynamic, and Natural

The MC Step Up Box S3 works very differently compared to a phono preamplifier. The windings ratio of the transformer determines the gain factor. As it works completely passive and no external power is needed, no extra power can be produced. The increase in voltage is achieved by a corresponding decrease is current.

As there is no amplification, the MC Step Up Box S3 has a remarkable noise performance and a very low level of distortion. The sound with a step-up transformer will be more lively, dynamic, and natural.

A cartridge impedance matching button on the back allow two different settings (10-40Ω and 40-150Ω).

Premium RCA Terminals

The MC Step Up Box S3 has gold plated input and output RCA terminals for optimum signal transmission. It also boasts a solid full aluminum housing. Due to the timeless design and rigid aluminum casework, the MC Step Up Box S3 is built for eternity.

Product Features

Completely passive and no external power is needed
Cartridge impedance matching button (10-40Ω and 40-150Ω)
Gold plated input and output RCA terminals
Solid full aluminum housing
Input MC: 1 x pair RCA phono connectors
Output: 1 x pair RCA phono connectors

Product Specs

Frequency response: 10Hz - 55kHz: +/- 1dB
Gain at 10-40 Ohm: 21dB at 1kHz
Gain at 40-150 Ohm: 24dB at 1kHz
Recommended load: 47 kOhm / 100pF
Dimensions (WxHxD): 8.1" x 2.5" x 6" (6.5" with connectors)
Weight: 2.0 lb.

Product Manual

Pro-Ject Step-Up Box S3 User Manual (PDF Format)

Pro-Ject Step-Up Box S3 Information Sheet (PDF Format)

Audio Advisor occasionally has fantastic deals on clearance items that are in excellent condition and we happen to have just one or two of.

Demo: Photo samples, gear we auditioned, items returned for wrong color/wrong size, etc.

Open Box: Contents briefly examined or inspected for promotional or internal purposes

Factory Refreshed: Original-condition items repackaged by the manufacturer

Cosmetically Blemished: A few dings or scratches, but functionally in original condition

Used: May show some signs of use

All clearance products are carefully inspected by our technicians before we offer the item for sale. All clearance products except Used items come with the original manufacturer warranty and are guaranteed to work and sound like new.

RETURN POLICY & PROCESS

NOTE:
You may only return a product purchased within 60-days of the receipt date.
The product must be in like-new condition and shipped in the original packaging (So SAVE THOSE BOXES!!!)

Call 1-800-942-0220 to request an RMA number.
Print the RMA number on the return shipping label.
Please make sure the return shipping name and address are written in a note on the inside.
Ship package to…

Audio Advisor Returns
4717 Broadmoor Ave SE, Suite G
Grand Rapids, MI 49512
(PRINT YOUR RMA NUMBER HERE)

NOTE: If a coupon was used in the ordering process, then the final value (recorded during payment) will be the price refunded.

Returned products are inspected by our warehouse and refunds are issued within 24 hours of inspection. Please note: it may take 7-10 business days for your bank to show the refunded amount. If you do not see it then, please reach out to our customer service team at 1-800-942-0220.

Audio Advisor will ship products anywhere in the United States, including Alaska, Hawaii, and U.S. Territories.