Luxman T-115 (1984–1986)
A tuner that locks onto stations and keeps its memory presets when the humidity changes. This is 1980s precision done right.
Overview
The Luxman T-115 isn't flashy. Luxman built it between 1984 and 1986 as part of the Duo-Beta Standard Series, a lineup that included turntables like the PD-300 and tape decks like the K-115. All of it had the same understated, silver-faced look Japanese gear was known for in the mid-80s. The T-115 is not a preamp, a receiver, or an all-in-one console. It's a dedicated AM/FM stereo tuner.
The big difference from the analog-tuned tuners of the day is quartz PLL (Phase-Locked Loop) frequency synthesis. No drifting off-station as the night rolls on, and no hunting for a signal with a sticky dial. Tuning is digital, with a pair of forward and back "keys" on the front panel. There's no traditional knob. Once you find your station, it stays put. To fine-tune manually, hit the Manual Button and creep in from either side.
The T-115 is built for stability. Its 12-station memory bank - six FM, six AM - uses modern (for the time) integrated circuits designed to shrug off temperature swings and moisture. That was a real issue in older memory systems, which would forget presets or jump channels when the weather changed. If you lived somewhere with spotty reception or seasonal humidity spikes, that reliability was essential.
Owners report the sound is "pure Luxman": clean, transparent, and free of the hash or muddiness that plagues lesser tuners. There's no tube glow or bass boost here. It renders what's on the air, with a quiet background that lets subtle details come through.
Specifications
| Manufacturer | Luxman Corporation |
| Model | T-115 |
| Production Years | 1984–1986 |
| Type | PLL Frequency Synthesizer FM/AM Tuner |
| Frequency Range | FM: 87.5–108 MHz, AM: 525–1605 kHz |
| FM Usable Sensitivity | 10.3 dBf (1.8 µV) |
| FM 50 dB Quieting Sensitivity | 15.6 dBf (3.3 µV) |
| FM S/N Ratio at 65 dBf | 76 dB |
| FM Frequency Response | 30 Hz – 15 kHz (-1 dB) |
| FM Distortion at 65 dBf | Mono: 0.12%–0.2%, Stereo: 0.3%–0.4% |
| FM Capture Ratio at 65 dBf | 1.4 dB |
| FM Alternate Channel Selectivity | 75 dB |
| FM Spurious Response Ratio | 85 dB |
| FM Output Level | 800 mV |
| AM Usable Sensitivity | 200 µV/m at 1 MHz (400 Hz, 30% mod.) |
| AM S/N Ratio | 50 dB at 1 MHz (10 mV/m, 400 Hz, 30% mod.) |
| Power Consumption | 10 W |
| Dimensions (W×H×D) | 438 × 85 × 312 mm |
| Weight | 5 kg |
| Made in | Japan |
| Finish | Front Silver, Cabinet Black (also available with wooden cabinet) |
Key Features
Quartz PLL Frequency Synthesis
The T-115's quartz-based PLL tuning system is the core of its performance. Older analog tuners relied on variable capacitors and were prone to drift. The T-115 uses digital logic to lock onto frequencies with high precision, so stations stay put even during temperature shifts or extended listening sessions.
Dual Tuning Keys & Manual Mode
Instead of a continuous tuning knob, the T-115 uses two push-button "keys" to step forward or backward through the band. That makes scanning stations faster and more deliberate. Press the Manual Button and you can nudge the frequency in smaller increments, which helps pull in a weak station buried between stronger ones.
12-Station Memory System
With six FM and six AM presets, the T-115 lets you store your go-to stations without fiddling every time you power up. The memory system uses integrated circuits designed to resist environmental degradation. Earlier memory systems could lose presets in damp basements or hot attics. This one holds, with no reprogramming needed when the seasons change.
Signal Management & Indicators
The front panel has a 5-segment signal strength indicator, so you can set up antenna placement without guessing. There's also a Tune Indicator to confirm lock-on, a Stereo Indicator, and practical features like Muting Defeat and a variable Muting Level Control, which help with noisy weak signals without cutting audio entirely. The Narrow IF Mode helps reject adjacent interference in crowded urban bands.
Collectibility & Value
The Luxman T-115 trades in the $60-$150 range these days, depending on condition and market. Listings have appeared at $59 USD (US Audio Mart), $80 CAD (Canuck Audio Mart), and between €49-€140 on HifiShark across late 2023 to mid-2025. It's not a headline-grabbing collectible like a Luxman tube amplifier, but it's a solid performer for the price, especially if you're building out a full Duo-Beta system.
A service/repair manual is available for $14.95 via Tradebit, but be careful. One user on HiFi Engine noted "significant differences between the schematic in this service manual and my Luxman T-115," which suggests revisions or inconsistencies in the documentation. DIY repairers should cross-reference other schematics if possible.
No common failures or maintenance issues show up in the data, so the T-115 seems to be a generally sturdy unit. No capacitors or power supplies are mentioned as failure points, and the passive nature of much of its front-end design likely helps longevity. Still, as with any 40-year-old electronics, check the tuning buttons, selector logic, and output jacks before trusting it in a critical setup.
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
Related Models
- Luxman MS-11 (1974)
- Luxman 5L15
- Luxman 5T-50 (1977)
- Luxman C-03 (1978)
- Luxman C-9II (1979)
- Eico 3150 (1967)
- Fisher CUSTOM-ELECTRA-I (K-14/K-15) (1957)
- Fisher CUSTOM-ELECTRA IV (E33/E44) (1960)
- Akai AM-2400 (1978)
- Akai AM-2600 (1977)