SuperLine Phonostage


SuperLine Phonostage

Vinyl replay makes a huge contribution to the enjoyment of recorded music. At its best, vinyl has a uniquely engaging and musical quality, and with the SuperLine phonostage, the best of vinyl just gets better.

The SuperLine is a high performance moving-coil phono stage built in the Naim Audio aluminium reference enclosure with an anodised front panel. It brings all Naim Audio's latest analogue electronic design and environmental isolation techniques to bear on the most delicate analogue element of any hi-fi system - the moving-coil phono signal. The SuperLine requires an external power supply - either the power supply output of an appropriate Naim Audio preamplifier or the SUPERNAIT and NAIT XS integrated amplifiers, or, for optimum performance, a dedicated FlatCap XS, HiCap or SuperCap.

SuperLine brings out all that's best in vinyl replay - timing, pitch accuracy, clarity, detail, and the unmistakable naturalness that records can deliver in abundance.

  • RCA and BNC inputs
  • Moving coil only, with cartridge impedance matching adjustment (20 different load combinations possible) 
  • Suspension system for delicate electronics as used in 500 Series
  • 24V supply voltage from NaimUniti 2, NAIT XS 2, SUPERNAIT 2, Naim Audio preamplifier (except NAC-N 172 XS), FlatCap XS, HiCap or SuperCap required
  • Bead-blasted, black anodised front panel


SuperLine Phonostage
SuperLine Phonostage
Technology & Craft

The heart of the SuperLine is a new, two-stage single-ended Class A discrete amplifier with part-passive RIAA filtering that runs off 25 internally regulated power supplies and features the transistor "quiet room" thermal isolation technique originally developed for the NAP 500 power amplifier. Environmental isolation is also ensured by the SuperLine's massive sub-chassis and high-Q spring suspension system - used here for the first time on a phono amplifier.

Duplicate phono and BNC sockets provide input versatility, and cartridge impedance matching adjustment is provided by four resistive and three capacitive load plugs. In combination with the SuperLine's internal input load, twenty different standard load combinations are possible

The SuperLine is also available in a lower gain model, SuperLine E. The SuperLine E is identical to the standard SuperLine except that is has been designed for use with cartridges that have a higher output voltage than most popular moving coils: for example high output moving coils.

Product Specification

Audio Inputs
Attribute Name Attribute Value
Analogue Input


Input Sensitivity

100μV - 500μV, SuperLine E: 200μV - 1mV

Other Inputs

2 x 5-pin DIN for loading plugs

Audio Outputs
Attribute Name Attribute Value

64dB at 1kHz, SuperLine E: 58dB at 1kHz

Frequency Response

10Hz to >200kHz -3dB


<0.005% (500μV at 1kHz)

Signal-to-Noise Ratio

82dB ref 500μV input, 0μ(A-weighted), SuperLine E: 78dB ref 500μV input, 0μ (A-weighted)


>80dB (20Hz - 20kHz)

Phono Specific
Attribute Name Attribute Value
RIAA Accuracy

±0.1dB (20Hz - 20kHz)

High Pass Filter


Input Overload

5mV rms (1kHz), SuperLine E: 10mV RMS (1kHz)

Input Load Options

10kΩ, 1k, 500Ω, 220Ω, 100Ω, 100pF, 1nF, 5.6nF, 10nF

Attribute Name Attribute Value
Supply Voltage


Power Supply Options

NaimUniti, NAIT XS, SuperNait, 152XS, 202, 282, 252, 552, FlatCap XS, HiCap, SuperCap

Attribute Name Attribute Value
Dimensions (HxWxD)

87 x 207 x 314 mm


7.7 kg

Shipping Dimensions

210 x 280 x 410 mm

Shipping Weight

9 kg

Supplied with

Load Plug

Attribute Name Attribute Value

Bead blasted and black anodised


Black powder coated

Manuals & Downloads

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