ifi Zen Phono

(1 customer review)

£189.00

ifi Zen Phono

The ifi Zen Phono is a superbly flexible high-performance phono amp at a bargain price.

Unlike any other entry-level phono stage. The ifi ZEN Phono has:

  • MM/MC from 36dB >72dB gain. Super-silent noise floor -151dBV
  • Precise RIAA with Balanced output, performance comparable to far more expensive phono stages 
  • An intelligent subsonic filter. Addresses warp without eliminating bass
SKU: ifi-zen-phono Categories: , , Tags: , ,
GTIN:  5060738783304
Brand: ifi
ifi audio

Description

ifi Zen Phono

The ifi Zen Phono is a superbly flexible high-performance phono amp at a bargain price.

Unlike any other entry-level phono stage. The ifi ZEN Phono has:

  • MM/MC from 36dB >72dB gain. Super-silent noise floor -151dBV
  • Precise RIAA with Balanced output, performance comparable to far more expensive phono stages 
  • An intelligent subsonic filter. Addresses warp without eliminating bass

Flagship phono amplifiers create their own power supply off the mains, like a mains regenerator. This is fundamental to a well-designed phono stage. Without this, it will struggle to amplify the signal without added noise. This is why phono stages ‘hiss’ so annoyingly.

Unusually, the ifi ZEN Phono has its own high-tech clean power supply. It creates a 1.2MHz power supply (20,000x mains frequency of 60Hz). In this circuit, a 10uF filtering capacitor = 200,000uF at lower, audible frequencies. With serious levels of noise filtration, it performs at the level of classic LC filtering circuits as found in classic tube amplifiers. On its own ‘island’ PCB, it is isolated so there is no noise pollution of the analogue stage.

Just super clean +/- 12V DC.

Measured EIN (Equivalent Input Noise) is -151dBV. It is 20dBV quieter than some Stereophile Class A+ phonos which are -131dBV.

The EQ circuit uses multiple TDK C0G capacitors in parallel. This is for best stability and the least distortion. They beat polystyrene capacitors and are close to Teflon. Read more here. 

Already using the lowest tolerance capacitors combined with multiples in parallel, tolerance is exponentially improved by the square root of the number of capacitors. This is quite a natty circuit design.

The RIAA EQ tolerance level (+/- 0.15dB) is impressive as it is en par with hand-selected capacitors!

ZEN Phono — the ultra-affordable phono stage from iFi audio

Gain settingsMC (v lo)@
MC (lo)
MC (hi)
MM
72dB (+/- 1dB)
60dB (+/- 1dB)
48dB (+/- 1dB)
36dB (+/- 1dB)
AI Sub-sonic filterRemedies only the ‘warp’ in LPsNo negative impact to bass response
Max Output Voltage (RMS)20v RMS bal output into 100k (< 1% THD & N)
13.5V RMS bal output into 600R (< 1% THD & N)
Output Impedance:BAL
SE
200 Ohm resistive
100 Ohm resistive
Signal/Noise Ratio:94dB(A) MM re 2V BAL/1V UNBAL
80dB(unweighted 80kHz BW) MM re 2V BAL/1V UNBAL
84dB(A) MC Hi re 2V BAL/1V UNBAL
71dB(unweighted 80kHz BW) MM re 2V BAL/1V UNBAL
90dB(A) MC lo re 2V BAL/1V UNBAL
79dB(unweighted 80kHz BW) MC lo re 2V BAL/1V UNBAL
79dB(A) MC vlo re 2V BAL/1V UNBAL
69dB(unweighted 80kHz BW) MC vlo re 2V BAL/1V UNBAL
EIN (equivalent input noise):0.6nV|/Hz (unweighted) MC lo/vlo

6.5nV|/Hz (unweighted) MM/MC hi

-151dBV (A weighted)
-141dBV (unweighted)
-130dBV (A weighted)
-119dBV (unweighted)
Harmonic Distortion:< -110dB / 0.0003% MM re 2V BAL/1V UNBAL
< -80dB / 0.01% MC lo re 2V BAL/1V UNBAL
< -86dB / 0.005% MC vlo re 2V BAL/1V UNBAL
Dimensions158 x117 x35 mm
6.2″ x 4.6″ x 1.4″
Power Supply:DC 5V / 500mA
Net weight:515g (1.14 Ibs)
Warranty:12 months

Brand

ifi

ifi Audio at Audiologica
ifi audio
ifi Audio at Audiologica

1 review for ifi Zen Phono

  1. Daisy Popham (verified owner)

    The ifi Zen phono has elevated the sound coming from my record player, so much more detail coming through now. Super easy to set up too .I’m a very happy customer. Richard was brilliant, phoning me with updates on my order so I knew exactly what was happening, this is exactly why it’s so nice to buy from smaller companies.

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