Pro-Ject: Phono Box S3 B Balanced Phono Preamp
【Pro-Ject】 Pro-Ject: Phono Box S3 B Balanced Phono Preamp Essential Selection _STEREO-COMP-preamp。
Pairs Well With
30-Day Price Guarantee
30-Day Price Guarantee
- Free 30-Day Returns
- Ships from our US warehouse (delivered in 3–7 days)
- Found a lower price? Let us know and we will match it!
1-Year + 180-Day Warranty
1-Year + 180-Day Warranty
So that you can buy with confidence, we provide a comprehensive warranty on every product.
- Warranty Period: This product comes with a 12-month standard warranty.
- Extended Warranty: Buy from our official website and you can register directly for the extended warranty, adding a further 180 days of coverage.
For more details, see the [Warranty Policy].
After your purchase, be sure to complete [Product Registration] to activate your warranty.
Free shipping
Free shipping
- Free Shipping:
All orders ship free of charge and usually arrive within 7 days. - 30-Day Return Guarantee:
If you are not satisfied, you may return or exchange the item within 30 days of delivery. - Shipping Protection (recommended):
For extra peace of mind, we recommend adding Seel Shipping Protection at checkout. With this coverage you can file a claim directly for shipping delays, loss or damage, and receive faster handling and stronger protection.
Please note that if shipping protection is not added, compensation is handled according to the carrier's rules and the applicable conditions. We are always happy to help with logistics inquiries, but the scope of compensation follows the carrier's policy.
For full details, please see the [Shipping Policy] and [Return Policy] pages.
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Features
Features
Specifications
Specifications
| Product Specifications | Value |
|---|---|
| Pro-Ject: Phono Box S3 B Balanced Phono Preamp | |
| Model Number | 7286953672794 |
| Age Range | 5+ |
| Shipping | Free shipping |
| Delivery Time | 1–5 days |
Reviews (384)
Reviews (384)
Customer Reviews
Payment & Security
Payment methods
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LAB POINTS
- upgrade from standard preamps with audiophile grade components + True Balanced Connection
- compatible with moving magnet (MM) + moving coil (MC) cartridges
- gain / impedance / capacitance settings for proper cartridge loading
- switchable subsonic filter
- high quality metal casing offers shielding from both vibration and electromagnetic interference
"The Phono Box S3 B is an entry-level phono preamplifier that offers a fully balanced design in a neat, small package. We’ve packed this tiny chassis to the brim with high-end features. One of those is our new True Balanced Connection. At Pro-Ject, balanced connections were exclusive to our RS range of products until now. The Phono Box S3 B brings those features to an incredible new entry level." - Pro-Ject
TECH SPECS
- INPUT IMPEDANCE: 10, 50, 100, 1k, 47k ohms
- INPUT CAPACITANCE: 50, 150, 300, 400 pF
- GAIN SWITCH (+ 6dB using XLR Out sockets): 40, 45, 60, 65 dB
- SUBSONIC FILTER: 20Hz with 18dB/octave
- SNR MM (40dB): 03dBV, 110dBV - 'A' weighted
- SNR MC (60dB): 85dBV, 90dBV - 'A' weighted
- THD at 1 kHz: <0,001% MM, < 0,005% MC
- THD (20Hz-20kHz): <0,008% MM, < 0,01% MC
- RIAA EQ Curve Accuracy: <0,3dB / 20Hz - 20kHz
- OUTPUT VOLTAGE: 18V/500mA DC
- DIMENSIONS: 8.11"W x 2.17"H x 6.02"D / 206 x 55 x 153 mm
- WEIGHT: 2.05 lbs / 930 g (without psu)
COMES WITH
- power supply
ABOUT TRUE BALANCED AUDIO
- True Balanced Audio refers to a superior audio signal that results in higher sound quality with nearly zero background noise, check out our in-depth guide here
- True Balanced gear can be utilized as both balanced (with the proper components and signal path) or non-balanced
- True Balanced Audio requires a moving coil cartridge (MC) or the Pro-Ject Pick it Pro Balanced MM Cartridge
- True Balanced Audio requires a balanced audio cable (5-Pin DIN, mini XLR / XLR, or RCA > Mini XLR) connected from the turntable to the preamp
- True Balanced Audio requires a preamp that accepts balanced cables; you can output either XLR (recommended) or RCA from the preamp to speakers / amplifier
- shop all Pro-Ject True Balanced
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