19" 1U QA40x Rack noshowbutton These are useful for verifying

These are useful for verifying the noise floor (see the Quick Start guide) of the QA401 and also are needed if you want to make single-ended measurements

including amp efficiency and output impedance

The QA402 offers 8 input range

QA401 User's Manual (may not be latest version

13-July-2026: The QA472 is awaiting case parts that will not arrive until later in July

19" 1U QA40x Rack noshowbutton These are useful for verifying4 June 2025: Racks are in stock, but are awaiting powdercoating. If you order, we'll wait to ship until after powdercoating (about 2 weeks). Let us know if you have an urgent need and we can ship in natural aluminum. A quick way to slide two QuantAsylum instruments into a single rack space just remove the feet from the instruments and use the included screws to attach the instrument to the rack. Rack is shown in image in pink color. The instrument