The Hi-Fi Atlas
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Audio equipment

JJ Electronic

JJ Electronic supplies valve amplification, including the 323 amplifier and 243 preamplifier used at Decibel.

Equipment index

Products in the rooms

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Venue equipment records, including their original model uncertainties. Shared-system entries retain the full recorded context.

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Equipment, commissions and collaborations.

Milwaukie / United States

Decibel Sound & Drink ↗

Equipment listed

JJ Electronic equipment is recorded in this venue’s system. This does not imply that the manufacturer designed or installed the system.

  • Preamps & phono stages: 243
  • Amplifiers & receivers: 323

Inside the system

A three-way horn system combines RCA MI-9462 bass horns, Altec 1505 multicells with JBL 375 drivers, and JBL 077 tweeters. University C15W woofers load the RCA cabinets; an in-house passive crossover joins the sections. JJ Electronic 323 amplification and a JJ 243 preamplifier serve a VPI Scout with JMW9 arm and a modified Marantz CD-4000. Cartridges vary, so no single cartridge model is assigned to the installation.

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Further reading