The Hi-Fi Atlas
← Makers

Amplifiers / USA

Threshold Audio

Threshold is associated with US high-end power amplifiers, including Nelson Pass-era designs. The units featured here are vintage equipment maintained in active use.

Amplifiers

Equipment index

Products in the rooms

Browse all Threshold Audio equipment

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

Hear it in the rooms.

Equipment, commissions and collaborations.

Cali / Colombia

Bonsai HiFi ↗

Equipment in use

Bonsai HiFi lists Threshold in its amplifiers setup. The equipment details below reflect the venue record.

  • Amplifiers in rotation: 400A and S/150

Inside the system

Two Technics 1200-series decks feed an ARS MODEL9900 rotary mixer. The main speakers are sealed GR-Research X-CS Encores, each using two M-165 woofers around a central tweeter. The design is rated at 90 dB sensitivity with a nominal 8 Ω impedance. A Sansui BA-2000 provides amplification, with Threshold 400A and S/150 amplifiers also in the collection and rotation. One KEF KC62 and two KC92 subwoofers support the sealed mains, while miniDSP processing addresses troublesome room frequencies. A kick-sub position sits behind the bar, although its model assignment is unspecified. With several bass sources in a compact room, their placement, level and timing are central to integration with the main speakers.

Read the system story ↗