When introduced, Nagra’s HD line set new technical and sonic standards that reflected

years of thoughtful research combined with exhaustive listening tests designed to

corroborate the scientific advancements that each HD product brought forth.

Since our founding in 1951, Nagra’s company culture has driven our pursuit of perfection.

Combine this with the Swiss tradition of precision engineering and it was inevitable that

continuing research and development on the HD line platforms would ultimately result

in advances that justify the release of a product line-up which

substantially extends the sonic envelope of the HD line.

The latest products to bear the appellation “Reference” are the Reference PREAMP,

Reference DAC and Reference AMP.

The Reference AMP finds its roots in the HD AMP. The HD AMP was originally designed

about 10 years ago and it is based on several previous technological advances of

predecessor Nagra AMP.

Designed in parallel with the Reference PREAMP, the Reference AMP is the ideal power

amplification partner in a reference level system. The Reference AMP is an iron fist in

a velvet glove. Boasting a new power supply 25% larger than the HD AMP, it features

many mechanical and electronic improvements.

Hundreds of hours of intensive listening sessions resulting in cumulative sonic

advances, allow us to introduce an amplifier pair that illuminates the subtle artistry

of a delicate piece of chamber music while also offering the capacity to reproduce

the “jump factor” of a large scale orchestral crescendo or the “to the core”

sensation generated by the power of the latest piece of electronica.

The Reference AMP features:

– New uprated 2000 VA transformers, isolated in an epoxy potting
– New adjustable resonance decoupling feet, featuring phenolic and pure copper
– New input circuit, with super low output impedance to drive the amplifier circuit
– Increased class A range of operation
– New inner line and speaker cables, selected for sonics and sourced from a highly

regarded high-end manufacturer
– Internal three-stage mechanical damping to silence deleterious vibrations of key

parts
– New WBT Next-Gen speaker posts
– Damping factor controlled outputs, A for deeper bass, B for tight bass to match

your speakers / room
– Aesthetic casework changes to match the Reference line design, including

hallmark Nagra chamfering
– Reference medallion on the front panel as part of the Reference family of products