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The Fidelity Research XF-2 Type L is a moving-coil step-up transformer specifically optimized for very low-impedance, low-output MC cartridges in the 0-5 ohm range, such as various Ortofon SPU and Fidelity Research low-impedance designs. It provides high gain of approximately 36 dB in the Type L configuration and is intended to feed a standard 47-50 kohm MM phono input, making it suitable for use ahead of dedicated MC stages or MM-only phono preamps. Like the better-known XF-1 Type L, the XF-2 Type L offers a wide playback frequency range around 5 Hz-50 kHz, allowing very extended bass and treble response with minimal phase shift and coloration. The XF-2 line is documented as having different versions (L and H) to cover distinct cartridge impedance ranges, with Type L matched to 0-5 ohm cartridges and Type H to higher impedances, reinforcing its role as the low-impedance specialist in the series. The XF-2 Type L shares the compact but hefty form factor typical of Fidelity Research MC transformers, with an approximate weight around 2.1 kg and a dense metal enclosure that helps control vibration and shield the transformer from hum and electromagnetic interference. Within Fidelity Research's SUT range, the XF-2 Type L sits alongside the XF-1 L/M/H models, complementing them by offering alternate core and winding implementations and alternative impedance/gain options. The XF-2 Type L is regarded as a rare, high-performance vintage component with clean, neutral transfer and substantial gain for very low-impedance MC cartridges, and remains sought after on the used market by enthusiasts looking to pair classic low-output cartridges with modern or vintage MM phono stages.
Analog signal output specifications
Phono stage specifications
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The 411 Type II's mc gain is 32 dB against the XF-2 Type L's 36 dB, its output impedance 47Ω against 5Ω, its weight 1 kg (2 lbs) against 2.1 kg (5 lbs), and its width 142 mm against 158 mm.
The ST7's output impedance is 28Ω against the XF-2 Type L's 5Ω, its weight 0.79 kg (2 lbs) against 2.1 kg (5 lbs), its width 122 mm against 158 mm, and its depth 102 mm against 70 mm.
The MC1 Moving Coil Transformer (SUT)'s mc gain is 22 dB against the XF-2 Type L's 36 dB, its output impedance 70Ω against 5Ω, its weight 1.9 kg (4 lbs) against 2.1 kg (5 lbs), and its width 165 mm against 158 mm.
The One-to-Ten's mc gain is 20 dB against the XF-2 Type L's 36 dB and its output impedance 0.1Ω against 5Ω. Both share cartridge type (LOMC).
Ortofon STA-6600L
Miyajima Laboratory ETR-KSW
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