Wunder Audio Blue Box PSU

Wunder Audio Blue Box PSU

The Blue Box PSU is the compact DC power supply for smaller Wunder Audio rack configurations — it powers up to 4 PEQ2R modules or up to 2 PAFOUR units, covering up to 8 channels of preamp and EQ from a single unit. For a project studio or a recording room running a focused Wunder Audio rack section, it delivers everything the Black Box does in terms of voltage architecture and monitoring, at a fraction of the size and weight.

Compact Footprint, Full Voltage Architecture

The Blue Box outputs two independent supply voltages: 24V DC for the audio circuitry and 48V DC for phantom power, each with a dedicated indicator LED so the status of both rails is visible at a glance. At 2" x 3¼" x 6½" and 3 lbs, it sits on a desk surface or inside a rack without requiring a dedicated 19" rack slot. Despite its size, it is designed with headroom above its rated maximum load — at 4 PEQ2R modules or 2 PAFOUR units, voltage delivery remains stable with no compression at the ceiling of its rated capacity. Connection to the first module requires the 5' DC Main Cable (sold separately); any additional modules chain off the previous unit via the 1' daisy-chain cable (sold separately).

Blue Box vs. Black Box: Choosing the Right PSU

The Blue Box is the correct choice for configurations up to 4 PEQ2R modules or 2 PAFOUR units — up to 8 channels total. That covers a standard project studio rack: two PEQ2R modules for 4 channels of preamp and EQ, or a single PAFOUR for 4 channels of preamp in 19" format. Once the rack grows beyond that threshold, the Black Box PSU takes over, handling up to 12 PEQ2R modules or 4 PAFOUR units. Both PSUs share the same DC cabling system — the 5' DC Main and 1' daisy-chain cables are fully interchangeable between the two.

KEY FEATURES

• Powers up to 4 PEQ2R modules or up to 2 PAFOUR units (up to 8 channels) from a single PSU
• Two independent output voltages: 24V DC (audio) and 48V DC (phantom power)
• Separate indicator LEDs for 24V DC and 48V DC rails
• Power headroom above rated maximum load
• Compatible with: PEQ1R, PEQ2R, PAFOUR, PAFOUR Plus
• Compact form factor — no 19" rack slot required
• Requires 5' DC Main Cable to connect to first module (sold separately)

TECHNICAL SPECIFICATIONS

• Type: compact DC power supply for Wunder Audio 19" rack modules
• Output voltages: 24V DC, 48V DC
• Maximum PEQ2R modules: 4
• Maximum PAFOUR / PAFOUR Plus units: 2
• Maximum channel count: 8
• Indicators: separate LEDs for 24V DC and 48V DC
• Dimensions: 2" x 3¼" x 6½" (51 x 83 x 165 mm)
• Weight: 3 lbs (approx. 1.4 kg)
• Required accessories: 5' DC Main Cable (sold separately), 1' daisy-chain cable per additional module (sold separately)