{"id":1368392,"date":"2026-04-06T02:04:37","date_gmt":"2026-04-05T23:04:37","guid":{"rendered":"https:\/\/digibit.ee\/?post_type=product&#038;p=1368392"},"modified":"2026-07-13T06:14:28","modified_gmt":"2026-07-13T03:14:28","slug":"pro-ject-pre-box-s3-preamplifier-silver","status":"publish","type":"product","link":"https:\/\/digibit.ee\/en\/product\/pro-ject-pre-box-s3-preamplifier-silver\/","title":{"rendered":"Pro-Ject Pre Box S3 Preamplifier, Silver"},"content":{"rendered":"<p>The Pro-Ject Pre Box S3 is a versatile and precisely designed stereo preamplifier that serves as an excellent control center for active speakers or power amplifiers. It combines analog, digital, and wireless audio sources into one compact device, offering high-quality sound reproduction and extensive connectivity options. The Pre Box S3 is well suited for modern hi-fi systems, turntables, streaming devices, and televisions.<\/p>\n<h3>Top-Quality Sound<\/h3>\n<p>The device is designed for audiophiles, and its analog and digital circuits ensure pure and natural sound. The low-noise design and short signal paths preserve the music\u2019s dynamics and details. The built-in 24-bit\/192 kHz DAC minimizes jitter and ensures precise timing, making the listening experience immersive.<\/p>\n<h3>Versatile Connections<\/h3>\n<p>The Pre Box S3 includes a total of 13 inputs and outputs, such as a phono preamplifier (RIAA), a TV eARC input, coaxial and optical digital inputs, and Bluetooth 5.0 connectivity with aptX and aptX HD support. You can connect active speakers, a power amplifier, a subwoofer, or a headphone amplifier. Additionally, the device features trigger and RS232 connections for remote control and smart home installations.<\/p>\n<h3>Usability and Design<\/h3>\n<p>The motorized volume control allows precise volume adjustment. The compact and stylish silver-colored case is made in Europe and fits seamlessly into various audio systems. The device operates with a power supply that consumes less than 0.5 watts in standby mode.<\/p>\n<h3>Compatibility and Control<\/h3>\n<p>The Pre Box S3 is compatible with many different devices and supports wireless streaming via Bluetooth. The RS232 and trigger connections enable programmed control and integration into smart home systems or custom installations.<\/p>\n<h3>Technical Specifications<\/h3>\n<ul>\n<li>Frequency response: 20 Hz &#8211; 20 kHz, &lt;-0.4 dB<\/li>\n<li>Line preamplifier gain: 4.5 dB<\/li>\n<li>Phono preamplifier gain: 45 dB<\/li>\n<li>Channel separation: -72 dB at 10 kHz<\/li>\n<li>Signal-to-noise ratio: 110 dB (120 dB &#8216;A&#8217;-weighted)<\/li>\n<li>THD: &lt; 0.007%<\/li>\n<li>Headphone amplifier: 2 x 70 mW at 32 ohms (1% THD)<\/li>\n<li>Headphone output: 6.3 mm jack (16\u2013600 ohms)<\/li>\n<li>Analog inputs: 2 x RCA pairs, 1 x phono MM (RCA)<\/li>\n<li>Digital inputs: RCA coaxial, 2 x Toslink, Bluetooth, asynchronous USB-C, eARC (for TV)<\/li>\n<li>Bluetooth version: 5.0, aptX, aptX HD, A2DP profile<\/li>\n<li>DAC: Cirrus Logic CS4344 24 bit \/ 192 kHz<\/li>\n<li>Outputs: 1x adjustable RCA, 1x fixed 3.5 mm connector, 1x sub RCA<\/li>\n<li>Trigger output: 12 V DC, 2-pin coaxial 2.5 mm connector<\/li>\n<li>Remote control included<\/li>\n<li>Power supply: 18 V \/ 500 mA DC; 100\u2013240 V, 50\/60 Hz<\/li>\n<li>RS232: 3-pin terminal connector<\/li>\n<li>Power consumption in standby: &lt; 0.5 W<\/li>\n<li>Dimensions (W x H x D): 206 x 55 x 153 mm (176 mm with connectors)<\/li>\n<li>Weight: 1020 g without power supply<\/li>\n<\/ul>\n<h3>Package Contents<\/h3>\n<ul>\n<li>Pro-Ject Pre Box S3 preamplifier<\/li>\n<li>Remote control<\/li>\n<li>Power supply<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>The preamplifier has a total of 13 inputs and outputs.<\/li>\n<li>eARC input for television<\/li>\n<li>Also includes a turntable preamplifier (RIAA)<\/li>\n<li>For streaming: Bluetooth 5.0, aptX, aptX HD, A2DP profile<\/li>\n<li>Motorized volume control<\/li>\n<\/ul>\n","protected":false},"featured_media":999999999,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[47402,47374,46035,46036,46049],"product_tag":[],"class_list":["post-1368392","product","type-product","status-publish","has-post-thumbnail","product_cat-amplifiers-and-receivers-en","product_cat-audio-equipment-and-musical-instruments-en","product_cat-audiotehnika-ja-muusikainstrumendid","product_cat-audiotehnika-ja-tarvikud","product_cat-voimendid-ja-ressiiverid","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product\/1368392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/media?parent=1368392"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product_brand?post=1368392"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product_cat?post=1368392"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product_tag?post=1368392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}