Ashdown Engineering

NFR-1 Reflex Studio Monitor - PAIR

£1,398.00

ONLY AVAILABLE DIRECT SOLD IN PAIRS ONLY IN STOCK AND READY TO SHIP

Incremental improvements add up to big gains for our new Ashdown nearfield monitors

In a year long R&D project, we have researched every aspect of monitor design to set what we believe to be a new standard in near-field critical listening. From the choice of HF driver diaphragm material to the breed of sheep from which the cabinet damping wool was sourced, no detail was deemed too small for scrutiny in the development of the Ashdown NFR-1, an active near-field monitor designed exclusively for music recording and production in home and project studios.

A compact Professional Wideband Low Distortion Monitor designed expressly for low volume critical assessment of recorded material and content.

The NFR-1 will provide a full frequency response when used in small to medium control rooms where the largest dimension is 12 -14ft and 14-20ft respectively.

Particular attention has been given to the all-important Vocal area in respect of colouration and distortion, the resultant frequency response is very similar to the world famous BBC LS3/5 broadcast monitor albeit with an enhanced bass and treble extension. The sealed construction ensures that correct placement in the room is not necessary to achieve a great sound. 

Twin power amplifiers rated at 100 watts each provide the required signals to the speaker drivers, crossovers split the signal accordingly, acoustic centre compensation eliminates the “suck out” so often encountered at the all-important crossover point, and a sub sonic filter helps to prevent cone damage from low frequencies. Finally an optical low distortion compressor reduces the signal being sent to the woofers in the case of accidental overdrive.

Construction features the obligatory Void free 11 lamination birch plywood, corner lock jointed to eliminate the use of beech corner blocks, extensive acoustic damping : all cabinet walls are coated in 17db wool felt and internal resonances are suppressed by the 100% long fibre wool stuffing.

SPECIFICATIONS:

SPEAKERS
1 x 5” SICA LF DRIVER
1 x MATCHING TWEETER

BALANCED XLR /TRS INPUT
BANDWIDTH | >8 MHz
DISTORTION | 0.0006%
SLEW RATE | >12v/Us
NOISE | -104dBU
CMRR | 90dB
SENSITIVITY | 0dbV (775mv)
MAX SIGNAL LEVEL | +20dBV

RCA/JACK INPUT
SENSITIVITY | 0dbV (775mv)
MAX SIGNAL LEVEL | +20dBV

AMPLIFIER (BOTH SECTIONS)
POWER OUTPUT CONTINUOUS | 105W
BURST POWER | 135W
THD @ 40WATTS AVE OUTPUT | 0.004%
HUM & NOISE | -110dBV
FREQUENCY RESPONSE | 7Hz- > 70KHz
POWER CONSUMPTION | 300 W Max

CABINET DIMENSIONS
315 X 200 X300 (mm) / 12.5 X 8 X 11.5 (“)
Ashdown nfr 1 reflex studio monitor pair
Perhaps unusually, the process of developing a better monitor started by defining a list of the things it shouldn’t be able to do. Firm in the belief that no monitor can truly be a ‘Jack of all trades’, the team discarded any notion of creating a speaker that could operate successfully in a range of room sizes, instead following the thinking of the BBC by placing unfatiguing performance on a variety of program material, clarity in the all-important mid-band and a controlled, uncoloured LF response at the top of the list, along with removing the requirement for precise placement and optimising performance in rooms of around 15 - 20 square meters. In short, creating a monitor that music producers could live in harmony with.
The electronics inside of the Ashdown nfr 1 reflex studio monitor
Class D amplification and DSP solutions whilst simpler and cheaper were rejected for several reasons, service life being the primary consideration followed closely by signal integrity and the need to carry out any further signal conversions.

The active crossover is a 24 dB /Octave Linkwitz-Riley network ensuring phase alignment is accurate.
The speaker cabinet inside of the Ashdown nfr 1 reflex studio monitor
Long fibre wool from the Herdwick sheep was chosen for cabinet damping over Rockwool for its superior absorbency, lowering cabinet resonance by 14%, and because it doesn’t fragment over time risking the contamination of drive unit motors with small particles.
The speaker that goes inside of the Ashdown nfr 1 reflex studio monitor
A 5-inch SICA LF driver features a rigid, die-cast chassis for precise voice coil alignment, a powerful vented magnet assembly for increased efficiency and reduced power compression, dual asymmetric roll surrounds to enable higher cone excursions and a copper demodulating ring.
The matching, tweeter was selected for its extended high frequency response, but with a gradual roll off after 20kHz to reduce the raspy high frequencies often encountered in digital material.

NFR STUDIO MONITORS User Guide

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