Serviced TASCAM Portastudio 414 - Erase Bypass + Tape Outs + Dual Speed Mod | 4-Track Cassette Recorder

TASCAM 414 4-Track Cassette Recorder Modded • Dual speed, Tape Outs, Erase bypass Mods. • New belts, cleaned pinch roller. • Fully calibrated. • Oiled capstan and motor bearing for peak performance. • Wow & flutter is within factory specification. • Recorder completely rebuilt, cleaned thoroughly, demagnetized. • Tested on all 4 tracks for 4–6 hours, demo video included. • Printed service form included. Overview This 414 has been fully serviced, calibrated, and tested, and has 3 mods installed (more info below). Recording and playback work on all four tracks, and the demo video demonstrates all 3 mods. It's not the same recorder as the one for sale but it's the same model with the same mods. The headphone jack is a little pushed in. It was inspected when the recorder was apart and it seems to be fine functionally. It works as it should. The listing shows a 414 MKII manual, it will come with the correct 414 manual instead. Cosmetically it's in great shape for its age (see pictures) (The cassette is not included in the listing, for display purposes only) Erase Head Bypass Modification This recorder has been modified with individual erase head bypass switches, allowing you to toggle the erase head on or off for each track. This is especially useful for sound-on-sound recording with tape loops. The usual method of blocking the erase head with tinfoil can be inconvenient and inconsistent. Simply disconnecting the erase head massively degrades recording quality. Both methods also disable the erase function for all four tracks at once. This modification eliminates these limitations, maintaining normal recording quality while allowing you to independently select which tracks have the erase head bypassed. The modification is demonstrated in the attached video. Half-Speed Modification This recorder has been modified with a selectable half-speed mode. Switching to half speed changes the transport from the Portastudio's high-speed playback to approximately normal cassette speed. After switching to normal speed, the pitch control should be adjusted counterclockwise to dial into normal speed. The pitch control can then be adjusted further to go even slower than normal speed. The modification is demonstrated in the attached video. Tape Out Modification The original TASCAM 414 only provides stereo left/right outputs. This recorder has been modified with individual RCA tape outputs for each of the four tracks. The outputs provide the direct playback signal from each track before the mixer section, making it easy to transfer all four tracks as separate audio files into a DAW or external mixer/recorder. Without this modification, each track must be transferred one at a time through the stereo outputs, which will cause the tracks to drift out of sync due to normal wow and flutter variations between playback passes. Service Performed Mechanical: • Completely rebuilt entire recorder • New belts • Treated pinch roller with rubber rejuvenator • Oiled capstan and motor bearings – steadier speed and lower wow & flutter Electrical: • Cleaned all switches, pots, and faders – no crackling or signal cutting out • Cleaned and demagnetized the heads • Reflowed connector solder joints Calibration: • Tape speed, playback and record levels, and record bias – correct pitch, even tracks, and clear highs • Wow & flutter measured at about 0.14% RMS (factory spec) Testing I record and play back a full side of a cassette on all four tracks, two tracks at a time, at least twice (4–6 hours total). It gets tested once more right before packing, and I'll message you when it ships. Included • TASCAM 414 4-Track cassette recorder • New power adapter • Printed instruction manual • Printed service form Shipping Free shipping. Ships with Reverb Safe Shipping (insured), signature required. Returns No returns. Please ask any questions before buying. Thanks for looking! If you have any questions, feel free to ask. Need your own recorder serviced? I do mail-in service, repairs, and mods. More info at kyxiiishop.com Serial Number: 6900011