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What You Need to Know
What Is the ACD APEX?
The ACD APEX is Advance Paris’s flagship CD player, designed to complement the APEX range of integrated amplifiers (A8 APEX, A10 APEX, and A12 APEX). It plays standard audio CDs, many CD-R discs, and MP3/FLAC files from a front-panel USB flash drive. What makes it different from a conventional CD player is the tube output stage: two Raytheon 5744 subminiature vacuum tubes in a Class A analog output stage handle both the balanced XLR and unbalanced RCA outputs.
The Raytheon 5744 is a military-specification tube — originally developed for demanding military electronics applications — known for its durability and consistent performance. According to Advance Paris, these tubes impart a warmth and harmonic richness to the CD signal that solid-state output stages typically don’t produce. The result, per the manufacturer, is “warm sound and authentic musicality” from your existing CD library.
This is a 30th Anniversary Edition model, finished in exclusive black with matching APEX aesthetics. It was introduced as part of the APEX series launch in late 2025, celebrating three decades of Advance Paris audio engineering.
Digital and Analog Outputs
The ACD APEX provides both analog and digital outputs simultaneously, giving you maximum flexibility. The balanced XLR and unbalanced RCA outputs both pass through the tube stage. Optical Toslink and coaxial RCA digital outputs are also available, letting you use the ACD APEX as a pure CD transport feeding an external DAC or an amplifier with digital inputs — bypassing the tube output stage entirely if you prefer. According to Vumetre (February 2026), the DAC chip is a Wolfson WM8761, used here specifically for CD playback conversion.
System Integration with APEX Amplifiers
The included infrared remote control operates not only the ACD APEX but also the APEX A8, A10, and A12 integrated amplifiers. This means a single remote controls your entire APEX system — CD player and amplifier — from your listening position. This kind of unified remote operation is specifically designed into the APEX product family.
Who Is This Best For?
You own or are building an Advance Paris APEX system and want a CD player designed to match both aesthetically and functionally.
You have a large CD collection and want to hear it through a tube output stage rather than a conventional solid-state player.
You want balanced XLR outputs from your CD player to match a preamplifier or integrated amplifier with XLR inputs.
You want the option to use the player as a digital transport, bypassing the tube stage when preferred.
How Does It Connect?
The balanced XLR or unbalanced RCA analog outputs connect to your integrated amplifier or preamplifier. The optical and coaxial digital outputs connect to an external DAC or digital input. The front-panel USB-A port accepts a flash drive for MP3 and FLAC file playback. The player operates on 115V or 230V via a rear-panel voltage selector. Gapless playback is supported on standard audio CDs.
What’s in the Box
- Advance Paris ACD APEX CD player (30th Anniversary Edition, black)
- Infrared remote control (compatible with APEX A8, A10, A12 amplifiers)
- Power cable
- Documentation
Interconnect cables not included. Verify exact contents with manufacturer prior to purchase.
Pairs Well With
- Advance Paris APEX Integrated Amplifiers — The ACD APEX is designed specifically for the A8 APEX, A10 APEX, and A12 APEX. Shared remote operation included.
- Advance Paris A10 or A12 Classic — Also pairs naturally with the Classic series amplifiers via XLR or RCA.
- Interconnect Cables — XLR or RCA cables needed between player and amplifier. Browse our cable selection.
Quick-Reference Specifications
| Tubes | 2 × Raytheon 5744 NOS subminiature (Class A analog output stage) |
| DAC | Wolfson WM8761 |
| THD+N (RCA output) | 0.005% |
| SNR | −106 dBrA |
| Analog Outputs | 1× balanced XLR (tube), 1× unbalanced RCA (tube) |
| Digital Outputs | 1× optical Toslink, 1× coaxial RCA |
| USB Input | Front-panel USB-A (MP3 and FLAC playback from flash drive) |
| Disc Formats | Red Book audio CD, CD-R; gapless playback supported |
| Remote | Infrared; compatible with APEX A8, A10, A12 amplifiers |
| AC Input | 115V / 230V (rear-panel selector) |
| Finish | Black (30th Anniversary Edition) |
Frequently Asked Questions
Will the ACD APEX work with non-APEX Advance Paris amplifiers?
Yes. The ACD APEX connects via standard balanced XLR or unbalanced RCA to any amplifier or preamplifier. The shared remote operation is specific to the APEX A8, A10, and A12 amplifiers, but the CD player works perfectly with the A10 Classic, A12 Classic, X-P700, X-i75, and any other amp with line-level inputs.
What is the Raytheon 5744, and why does it matter?
The Raytheon 5744 is a subminiature vacuum tube originally developed to military specifications for reliability in demanding conditions. In audio use, tubes like the 5744 introduce harmonic richness and warmth to an analog signal in a way that solid-state components don’t naturally produce. According to Advance Paris, using two of these tubes in the output stage gives the ACD APEX a more musical, less clinical presentation than a conventional solid-state CD player.
Can I play FLAC files from a USB drive?
Yes. The front-panel USB-A input supports MP3 and FLAC files from a flash drive at 16-bit/44.1kHz resolution, according to All Elite Audio. These files play through the tube output stage just like a disc.
How does the ACD APEX compare to the X-CD7?
The X-CD7 is the Classic-series CD player with a Wolfson WM8761 DAC and solid-state analog outputs. The ACD APEX adds tube output stages (Raytheon 5744 NOS tubes) on both XLR and RCA outputs, and is designed to aesthetically and functionally integrate with the APEX amplifier series via shared remote operation. The ACD APEX is priced higher, reflects the 30th Anniversary positioning, and is for buyers who specifically want the tube output character.
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