This article covers ONKYO SE-200PCI WAVIO PCIデジタルオーディオボード.

Overview

The ONKYO SE-200PCI WAVIO is a high-end PCI sound card from the mid-2000s, designed to deliver exceptional audio quality. It features the VIA Envy24HT audio controller paired with a Wolfson WM8740 DAC and ONKYO's proprietary VLSC (Vector Linear Shaping Circuit) technology, achieving a signal-to-noise ratio of 115 dB. The 2-channel output circuitry is symmetrically laid out with independent left/right power supplies to minimize crosstalk and ensure clean signal transmission. Inputs include an optical SPDIF (square connector), two line-level inputs, and a microphone input. Outputs include an optical SPDIF, 7.1-channel analog output, and a dedicated 2-channel analog output. All of this is packed on a standard PCI card, meaning it requires a legacy PCI slot (not PCIe).

Connectivity & Compatibility

The SE-200PCI uses a conventional PCI interface (32-bit, 33 MHz). It is not compatible with PCI Express slots directly. Modern motherboards (post-2015) rarely include PCI slots, so you may need a PCIe-to-PCI adapter, which can introduce compatibility issues or performance limitations. Analog outputs are provided via 3.5mm jacks: three jacks for 7.1 surround, plus a separate 2-channel output (likely RCA or 3.5mm). Digital output is optical SPDIF (Toslink square). Inputs include two line-level stereo inputs and one mono microphone input, plus an optical SPDIF input for external devices. Driver support under Windows 10/11 is possible but not officially guaranteed. You may need to find community-maintained drivers or use the generic Windows driver. Functionality such as hardware acceleration or advanced features may not work on modern OSes.

Product Info

Released in the mid-2000s, the SE-200PCI was positioned as a high-end audio card for enthusiasts. Its original retail price was around ¥20,000; today it can be found used or from remaining stock for roughly ¥13,000–¥15,000. No official warranty remains, so purchase from a seller with a return policy. Accessories include the card itself, a driver CD, and a manual. The CD is outdated; you'll need to download drivers from archival sources. The card uses premium components: VLSC circuitry, Wolfson WM8740 DAC, OS-CON capacitors, and a ±10PPM precision clock oscillator.

Best Use Cases

Legacy PC audio enthusiasts: If you still have a desktop with a free PCI slot (e.g., an older Core 2 or Sandy Bridge system) and want high-quality analog output for music or audio production, the SE-200PCI can outperform many modern onboard audio solutions. Retro gaming PC builders: For a Windows XP/Vista/7 gaming rig, this card provides excellent sound quality for games of that era. It supports hardware 3D audio via DirectSound3D (if drivers work). * Collectors and experimenters: As PCI sound cards become rare, the SE-200PCI is a noteworthy piece of audio hardware history. Its VLSC technology and high SNR are still impressive today. This card is not suitable for users who need a simple plug-and-play solution on a modern motherboard without PCI slots, or for those who require official driver support for Windows 11. For new builds, consider a USB DAC or a PCIe sound card instead.

Product Disclosure (Amazon)

  • Manufacturer: Onkyo
  • ASIN: B000KQGM4C
  • Note: This article covers a manufacturer-made product based on Amazon listing details.