ELEKIT TU-8500 – Tube preamplifier DIY kit - Without tubes, With assembly

This kit has reached end of production; only the last remaining units are still in stock.

Technical specification:
- STOCK TUBES: JJ Electronics ECC82 (12AU7) x 2 pcs.
- OP-AMP: NJM2068DD x 2 pcs.
- INPUT TERMINAL: RCA Jack 4 lines (PHONO, LINE1 – 3), 3,5 mm stereo jack 1 line (LINE3 priority)
- OUTPUT TERMINAL: RCA Jack 1 Line (PRE OUT)
- POWER VOLTAGE: AC 100V 50/60Hz, IEC Standard inlet, Selected from 100V, 115V, 200V and 230V upon assembly
- POWER CONSUMPTION: 8 W
- DIMENSIONS: W 252 mm x H 73 mm x D 270 mm (exc. projections)
- WEIGHT: Approx. 3,1 kg (assembled, exc. power cord)
- – GAIN: x 3,1 (9,8 dB) / x 1,15 (1,2 dB)
- – FREQUENCY RESPONSE (-3 dB): 2 Hz – 70 kHz / 2 Hz – 280 kHz
- – S/N RATIO (IHF-A): 122 dB / 129 dB
- – MAX. OUTPUT VOLTAGE: 22 V RMS (1 kHz)
- – RIAA EQUALIZATION: +/- 0,5 dB tolerance (20 Hz – 20 kHz)
- – CARTRIDGE: MM (LOW) / MC (HIGH) switchable
- – GAIN (1 kHz): [MM] 37 dB / [MC] 63 dB
- – SN RATIO (IHF-A): [MM] 108 dB / [MC] 88 dB
- – INPUT RESISTANCE: [MM] 50 kOhm / [MC] 100 Ohm
- – MAX. OUTPUT VOLTAGE: 7,4 V RMS (1 kHz)

ELEKIT's tube and hybrid amplifier kits are aimed at people who want to understand and build the heart of their audio system with their own hands, not just buy it ready-made. The Japanese manufacturer provides a detailed, step-by-step assembly manual and a pre-etched, labelled PCB with every kit, so it can be assembled safely without any electronics background - most models only need a screwdriver and pliers, no soldering required. The finished amplifier's power, distortion and noise figures are documented by measurement, so you know exactly what to expect at the listening position. ELEKIT and its related accessory/upgrade kits (upgrade transformers, enclosures, replacement pots and knobs) form a modular system: a base amplifier kit can keep being improved years after purchase - for example with a better output transformer, a precision volume pot, or premium enclosure parts - without replacing the whole unit. This results in a system that keeps its value and can be expanded over time. Smaller accessories - enclosure parts, knobs, feet, pot replacements - typically bolt straight onto an amplifier you already own with nothing more than a screwdriver, so the look and feel of an older ELEKIT build can be refreshed without touching the internal circuitry at all.

ELEKIT's Japanese DIY audio kits have been known for decades for their precise manufacturing and well-documented, clearly explained assembly instructions - most models can be built in a few hours without soldering.

Package weight: approx. 4,4 kg. GTIN: 4952682106555.