ELECTRONICS
Power: 250 W RMS per channel into 8 Ω
30 W pure class A
1000 W RMS on lower impedance
Sensitivity: 1 V or 2 V RMS
Bandwidth: 0 Hz to 120 KHz, +0/-0.5 dB
Crosstalk: Not related for mono amplifiers
Signal-to-noise ratio: Typically 110 dB
ASA “A” weighted
THD+N: < 0.03%
Input type: XLR balanced
RCA unbalanced
Input impedance: 88 KΩ on balanced input
44 kΩ on unbalanced input
DC filter: Toggle switch allows to cut the DC of incoming signals
Protection: Overheating > +70° C (158° F)
Remote in and out: 1/8″ jacks in and out can trigger the amplifier on or off from a Nagra MPS or a home automation system
Power cord: IEC C19 this is not the standard IEC but a larger 20A plug
MONITORING
Nagra modulometer, precision measurement tool
Clipping LED
Intensity can be adjusted, from off to full bright
GENERAL
Consumption: 1200 W max
less than 1 W in standby and Auto mode
Weight: 56 Kg (123.4 lb) each unit
Size: Width 23.8 x Height 64.4 x Deepness 54.2 cm (9.3 x 25.3 x 21.3″)
Operating range: 90 – 110 V or 110 -132 V or 180 – 264 V a.c.
50 – 60 Hz
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 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
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.
