Tascam 42B (1989) & Sansui AU-555 Amplifier (1973) Combo (with Pioneer HPM-100 speakers) @davismv
Tascam 42B (1989) & Sansui AU-555 Amplifier (1973) Combo (with Pioneer HPM-100 speakers)  @davismv
Uploaded June 2026 | Updated September 2026, 2 weeks ago
We’re running Amazon Music streaming Bluetooth audio through an analog record loop on a Tascam 42B. Essentially, we are analoging a digital source. The net effect should be a little smoother sound with an inaudible degradation as a side effect. Make sense?

It’s fun doing this and we’ll sometimes play music for the entire evening experimenting with different tape brands, formulas, thicknesses, speeds, and biasing.

This is my son‘s reel to reel and we’ve been working on this for a while after a funny acquisition story, power supply repair, and head relapping. The Sansui amplifier is 100% original and given to me from a friend of the original owner.

Both units tonight needed a good workout - especially the amp after being in hibernation for about eight months.

Also - I’m looking for somebody that has depth and understanding of biasing the Tascam 42B. We can’t get +6 and +9 tapes to record right without distortion and would like to seek some help from someone with experience, so please hit me up and I’ll send you a beer. (we think the bias caps need to be changed out, this is outside of everything we have tried with internal adjustments).

Have a great weekend!
Tascam 42B (1989) & Sansui AU-555 Amplifier (1973) Combo (with Pioneer HPM-100 speakers)Sansui 8080DB DC Offset and Bias AdjustmentCarver M-1.0t Amplifier Biasing.  200WPC, 1986.Optimus STAV-3400 105 WPC from 1993 (Pioneer VSX-D702S)Sansui 7900Z Re-Biasing, 100WPC, 1980Akai AA-R32 45WPC Receiver from the 1980’s - an ADHD Dream!Sony BetaCam SP Playback Deck PVW-2650Sony ps-77 BSR Automatic Changer Turntable from ~1973Sansui G-9000 160WPC Monster from 1978Sony TC-580 Refurbishment for CustomerRenewed Pioneer RT-707 - Replaced all 10 2SC1344 transistors!!Technics SA-550 and SA-850 Amp Biasing
Mark Davis |

Tascam 42B (1989) & Sansui AU-555 Amplifier (1973) Combo (with Pioneer HPM-100 speakers)

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