LENCO MAP 3400 Stereo Integrated Amplifier 25+25Watts RMS Vintage WORK GOOD LOOK

LENCO MAP 3400 Stereo Integrated Amplifier 25+25 Watts RMS Vintage WORK GOOD LOOK

Technical Specification Sheet – Lenco MAP-3400

Stereo Integrated Amplifier (featuring STK463)

⸻

📌 General Description

The Lenco MAP-3400 is a classic stereo integrated amplifier, manufactured in South Korea during the late 1970s or early 1980s. Designed for domestic Hi-Fi use, it delivers a warm and rich sound profile with a distinctive retro aesthetic. It features an aluminum brushed faceplate, analog VU meters, and physical controls. Internally, it employs the Sanyo STK463 hybrid power amplifier IC, widely used in reliable mid-range audio systems of its time.

Technical Specifications

Feature

Details

Amplifier Type

Stereo Integrated (Hybrid IC – STK463)

Power Output

2 × 25W RMS @ 8Ω (0.1% THD)

Minimum Load Impedance

4Ω

Frequency Response

20 Hz – 20 kHz (approx.)

Total Harmonic Distortion (THD)

≤ 0.1% @ full rated power

Signal-to-Noise Ratio

≥ 80 dB (estimated, AUX input)

Power Amplifier Chip

Sanyo STK463 (Hybrid IMST Module)

Power Consumption

250W (as labeled on rear panel)

Power Supply

220V~ 50 Hz (fixed voltage, no selector)

Rear Panel Connectivity

• DIN 5-pin Inputs:

• PHONO (with separate GND screw terminal)

• TUNER

• AUX

• TAPE MONITOR (Input & Output)

• Speaker Outputs:

• 2 × DIN speaker connectors (Left & Right)

• Labeled for 4Ω minimum speaker impedance

• Power Cable: Hardwired 220V AC cable (no detachable cord)

Front Panel Controls

• Power switch (mechanical)

• Analog VU meters (Left and Right channels, illuminated)

• Knobs:

• Bass

• Treble

• Balance

• Volume

• Switches:

• Source selector: AUX / TUNER / PHONO / TAPE MONITOR

• Loudness: ON / OFF

• Tape Monitor selector

• Tone Filters: HIGH / LOW / OFF

• Headphone Output: Standard 6.3 mm (1/4”) jack

External Dimensions (Confirmed)

Dimension

Value

Width

43 cm

Height

12 cm

Depth

23 cm

Weight (approx.)

~5 kg (estimated)

Notes and Highlights

• Designed for analog systems, especially vinyl and tape users.

• DIN input system requires adapters for modern RCA-based devices.

• No voltage selector — suitable for 220V regions only.

• Classic aesthetics with full aluminum front and analog VU meters.

• Ideal for vintage collectors, restorers, and audio purists.

Recommendations

• Do not use speakers under 4Ω to prevent overloading the STK463.

• If restoring, replace thermal paste on the STK463 and ensure proper heatsinking.

• For modern usage, the AUX input can be adapted using a Bluetooth or USB DAC-to-DIN converter.

• Be cautious of counterfeit STK463 modules if replacing.

THE Article was completely Reformed and has the perfect functioning, the article has marks of use and the passage of time, take a good look at the photos to check the marks and damage, WE DO NOT ACCEPT CLAIMS OR RETURN REQUESTS

Compatible with :

Krell, audio research, sota, aloia, levinson, quad, sonic frontiers, audio notes, fostex, jeff rowland, pioneer, tannoy, accuphase, rotel, technics, b & o, spendor, rogers, harbert, avalon, proac, sme, allison, audioquest, dynaudio, celestion, class', electrocompaniet, teac, sae, sonus faber, nakamichi, mit, cardas, audiotekné, microseiki, nelson pass, conrad, asr, phase, denon, roksan, cyrus, nad, philips, counterpoint, cayin , vtl, gyro, atm, emt, rega, yamaha, b & w, sony, kenwood, klipsch, sansui, stage, mcintosh, luxman, bose, altec, cerwin, cervin wega, arcam, meridian, ps audio, EAD, harman, jbl , genesis, thorens, kef, linn, leak, marantz, revox, esb, infinity, chario, naim, focal, yba, monrio, am audio, ar, allison, Sansui, monster cable, shure, scan, seas, lowther, vinyl, turntable , nos, tube, high end, integrated, valvular, valves, sinto, cd, final, pre, dac, converter, van den hul, cable, hi-fi, hi end, speakers