Explore the latest Back to School techShop now

Skip to contentGo to Product Search
Main Content

Questions & Answers

No content
  • CE FC RoHS www.FOSIAUDIO.COM 48DB 38DB 56DB 66DB R L MM/MC INPUT GAIN MC MM R L OUTPUT AC 16V Fosi Audio BOX X5
  • BOX X5 High-Performance Phono Preamp MM&MC Cartridges Support/ 4-Level Gain Adjustment/RIAA Equalization Accuracy
  • Precise RIAA Equalization Implementation Delivers High Fidelity, Low Noise, and Wide Dynamic Range Relative Level (1.00000 kHz) - x 3.0 2.5 2.0 1.5 PUT x Hz Y dB Relative Level (1.00000 kHz) 2024/10/24 16:12:40.769 Data Ch1 Ch2 1.0 0.5 0 (gP) -0.5 Level -1.0 -1.5 Relative -2.0 -2.5 -3.0 -3.5 -4.0 -4.5 -5.0 20 30 50 100 200 300 500 1k Frequency (Hz) 2k 3k 5k 10k 20k Mode: Normalized at Reference Ref Frequency: 1.00000 kHz Frequency Response SINAD Headroom 20Hz-20kHz(±0.015dB) 85dB >100m
  • Audiophile-Grade Internal Components Curated for the Pinnacle of Sound Purity - Panasonic 2% Precision Polyester Film Capacitors - Nichicon Green Sleeve Copper Lead Audio Capacitors - 0.1% High-Precision Film Resistors - OPA1612 Op-Amp - Omron Relays - Gold-Plated RCA Jacks
  • MM/MC Cartridges Fully Supported Compatible with Most Turntables, with 38/48/56/66 dB Gain Options Gain Switch Ground Terminal MM/MC RCA Input RCA Output CE FC RoHS www.FOSIAUDIO.COM 48DB 38DB 56DB 66DB R L MM/MC INPUT GAIN MC MM R L OUTPUT AC 16V MC/MM Selection AC 16V Power Input (Please use the power adapter included with the product to avoid improper operation or damage.) MC Compatible with Two Types of Cartridges (47KO Input Impedance) MM Recommended for use with 38dB or 48dB gain settings MC (1000 Input Impedance) Recommended for use with 56dB or 66dB gain settings 4000 2A00 3800 AC GLAIN Gain Adjustment Guide 38dB Input 56dB Input Signal Signal 2mV 0.5mV 48dB Input 66dB Input Signal Signal 2m
  • Compact, Refined with a Solid Build Paired with the V3 Mini Amp to Create a Seamless Vinyl Experience
  • Front and Rear Panel Overview Power Indicator Power Switch: Long press 2s to turn on; short press to turn off Fosi Audio BOXX5 MM/MC RCA Input Gain Switch RCA Output Ground Terminal CE FE RoHS WWW.FOSIAUDIO.COM 48DB 38DB 56DB 66DB R L MM/MC INPUT GAIN MC M R L OUTPUT AC 16V MC/MM Selection AC 16V Power Input
  • Connection and Usage Diagram Turntable(MM/MC) Passive Speakers RCA In (100% shielded cable recommended) Speaker Out Box x5 RCA Out (100% shielded cable recommended) Amplifier *Please follow the sequence below when powering on and off to prevent any thumping sounds that could damage the equipment. Power On: Turn on the turntable, then the BOX X5, followed by the amplifier. Power Off: Turn off the amplifier, then the BOX X5, and finally the turntable.
  • What's in the Box? Pochedo BOX X5 Phono Preamp Fosi Audio For UK For US For AU 16V Power Adapter User Manual

Fosi Audio - Box X5 Phono Preamplifier for MM and MC cartridges with 4-level gain adjustment and RIAA equalization accuracy - Black

Model:
BOX X5
SKU:
6680578
$109.99
Page Showing 1 of 1 question
Ask a Question
Page 1, Showing 1 of 1 question
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.