This is Signet MC boost transformer MK10T. This is an overseas model of Audio-Technica's MC boost transformer AT-630. Although compact, it is a high-performance model that reduces induction noise with a triple permalloy shield and eliminates signal deterioration due to input impedance switching, and is compatible with the company's AT32 series and AT33 series. The exterior is dull, there is slight corrosion, etc. (Ryo Mizusaki)
Maintenance information: 2026.5.13 sound output confirmed
Accessories: none
Main specifications: input impedance 18 ohms load impedance 47 kΩ frequency characteristics 15 to 100,000 Hz weight 230 g
A classic MC boost transformer. With 2 input systems, the impedance can be switched between 3-40 ohms, and a PASS line is included, so you can freely enjoy various cartridges and tone arms. The sheath is torn and vinyl tape is wrapped around it (Oikawa Tetsuji)
Maintenance information: 2026.5.10 operation confirmed
Accessories: none
Main specifications: MC boost transformer input 2 systems switchable, primary impedance 40 ohm, 3 ohm switching, secondary impedance 4 kΩ boost ratio 1:10 frequency characteristics 10 Hz to 100 kHz, W97 x H65 x D155 mm 0.8 kg
A classic MC boost transformer. With 2 input systems, the impedance can be switched between 3-40 ohms, and a PASS line is included, so you can freely enjoy various cartridges and tone arms. The rubber feet are chipped, small scratches, and a feeling of use. (FUJISAWA KOSHI)
Maintenance information: 2026.5.10 operation confirmed
Main specifications: MC boost transformer input 2 systems switchable, primary impedance 40 ohm, 3 ohm switching, secondary impedance 4 kΩ boost ratio 1:10 frequency characteristics 10 Hz to 100 kHz, W97 x H65 x D155 mm 0.8 kg
MC boost transformer optimized for SPU. The sound creation that is only slightly distorted with a small transformer embodies superb music playback by connecting the SPU. Dullness and a feeling of use can be seen. (FUJISAWA KOSHI)
Maintenance information: 2026.5.10 operation confirmed
Accessories: original box
Main specifications: input impedance 2 ohms to 3 ohms boost ratio 60 times weight 70 g
MC boost transformer optimized for SPU. The sound creation that is only slightly distorted with a small transformer embodies superb music playback by connecting the SPU. The plug will be replaced with a MONSTER CABLE one. Overall, it is dull, has small scratches, and is in a state where there is a feeling of use (permanent future)
Maintenance information: 2026.5.10 operation confirmed
Accessories: none
Main specifications: input impedance 2 ohms to 3 ohms boost ratio 60 times weight 70 g
L type with reinforced shields from the Danish famous Trans JS No. 6600. Since the boost ratio is high, the weak point where it is easy to pick up hum is overcome with a strong shield. Ideal for SPUs and older MC series with poor output, the rich tone is exquisite. The exterior is dull and has small scratches (Satoshi Yonejima)
Maintenance information: 2026.5.9 operation confirmed
Accessories: No accessories
Main specifications: primary impedance 1.5 Ω secondary impedance 1.5 kΩ boost ratio 1:31 MM with bypass switch 520 g (actual measurement)
DENON's MC type cartridge boost transformer. Since it is equipped with a bypass switch, it is convenient when listening by exchanging 2 types of cartridges (MM type, MC type). Also, since it uses a transformer designed for the DL-103 and DL-103S, it fully demonstrates the capabilities of the models described above. The body has rust over time, and there is a feeling of use due to dark spots (Otani Ryushin)
Maintenance information: 2026.5.7 sound output confirmed
Accessories: none
Main specifications: primary impedance 40 ohms secondary impedance 4 kΩ boost ratio 1:10 frequency band 20 to 40 kHz W51 × H53 × D181 mm 0.65 kg
The price has been reduced. 2026/4/19 sales price 29,800 yen. ※6 month warranty. MC boost transformer optimized for SPU. The sound creation that is only slightly distorted with a small transformer embodies superb music playback by connecting the SPU. You can see a feeling of use such as appearance, dullness, scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.4.18 Operation confirmed
Accessories: none
Main specifications: input impedance 2 ohms to 3 ohms boost ratio 60 times weight 70 g