JVC AX-Z911BK (circa 1988–1989)
Documentation on the JVC AX-Z911BK is thin. What survives comes mostly from contemporary audio magazine references. They call it JVC's "Digital Pure-A Integrated Amplifier" and place it in the company's Super Digifine component series - a lineup that also included the XL-Z555BK CD player and SX-911WD speakers. The series was marketed as a step beyond JVC's earlier digital efforts, with an emphasis on expanding digital techniques into amplification and system control.
High Fidelity (March 1989, p.41) published test measurements for the AX-Z911BK. Output impedance was 510 ohms from the aux input and 380 ohms from the phono input, with a notably higher 710 ohms from the digital input. The same review noted a limit in the tape monitoring. You could not dub from Tape 2 to Tape 1, and Tape 1 was tied to the main input selector, so off-tape monitoring for that deck was out.
A specifications page in High Fidelity (December 1988, p.54) lists the AX-Z911BK alongside the FIX-1001 VBK Programmable Computer-Controlled Receiver and the XL-Z555BK CD player. That confirms its place in JVC's late-1980s digital-component lineup. No full schematic, service manual, or detailed design description has surfaced in the Archive's holdings.
Known facts in brief:
- Amplifier type: Digital Pure-A Integrated Amplifier
- Series: JVC Super Digifine
- Output impedance (aux input): 510 ohms
- Output impedance (phono input): 380 ohms
- Output impedance (digital input): 710 ohms
- Tape dubbing: Tape 2 → Tape 1 not supported; Tape 1 cannot be monitored while off-source
- Period: ~1988–1989
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