Luxman L-308

June
1 9 7 3 june 1973
1 9 7 5 1975

Luxurious mid-to-high-end amplifier preceding the more remembered L-309, inaugurating LUX's staple Linear Equalizer circuit.

Linear Equalizer is a 5-step up or down "tilt" to the preset RIAA curve, rotating the 1kHz-centered frequency response up or down : more bass & less treble or more treble & less bass.
There is too much compression and standardization today to justify a Linear Equalizer, but given the highly variable response curve of the recordings back then, this surely was uselful !

The regular tone controls are Lux's (other) staple NF controls with selectable center frequency.

The circuit is a fully-complementary DC power amp section with dual-rail power-supply and 3-stage DC EQ circuit for the phono - Single-Stage, Duo-ßeta, plus-X and Circuit /S were for later years.

Compared to the later L-309, the L-308 doesn't have the back pot to attenuate the MAIN in input level, nor the MIC inputs with pulll-on/off level pot, replaced by tape 1 i/o jacks.
Bar power output, the rest is the same : 2-position low cut, 2-position high cut, low boost, stereo/L/R/Mono (L+R)/Reverse, 3-position phono 1 impedance selector, tuner input level pot and 2-way dubbing/monitoring.

Replaced in late 1975 by... nothing : the L-309 took over for that segment of the Luxman marketing and its many (many) (many) (many) (confusing) (diverging) (overlapping) (market-dependent) segments.

Beautiful, simple, healthy, shiny 1970s nevertheless.

A real 308 here.

Luxman L-308, image 1 Luxman L-308, image 2
Luxman L-308 specifications
Title Value
MAIN section MAIN section
RMS power output : 2x 55W (8 Ohm, continuous, both channels driven)
2x 65W (8 Ohm, continuous, single channel driven)
Power bandwidth : 5Hz...50Khz (-3dB ; 0,03% THD)
Frequency response : 10Hz...50Khz (± 1dB)
THD : < 0,03% (8 Ohm, 55W)
IMD : 0,04% (8 Ohm ; 55W)
Residual noise : 0,5mV (86dB)
Damping factor : 40 (8 Ohm)
Input : 600mV / 40kOhm
PRE section PRE section
Frequency response : 10Hz...50Khz (line input ; -1dB)
THD : < 0,03% (line input ; 1V)
Inputs : 2,5mV / 90k-65k-50kOhm (phono 1)
2,5mV / 65kOhm (phono 2)
100mV / 150kOhm (aux 1 & 2)
100mV / 50kOhm (tuner)
Max. input signal : 300mV (phono ; 1Khz)
S/N ratio : > 65dB (phono 1 & 2)
> 80dB (lines)
Bass controls : ± 8dB / 100Hz ; 150Hz turnover
± 10dB / 100Hz ; 300Hz turnover
± 12dB / 100Hz ; 600Hz turnover
Treble controls : ± 12dB / 10Khz ; 1,5Khz turnover
± 10dB / 10Khz ; 3Khz turnover
± 8dB / 10Khz ; 6Khz turnover
Low cut filter : 20Hz or 70Hz / 6dB/octave
High cut filter : 7Khz or 12Khz / 6dB/octave
Low boost filter : 100Hz 6dB/octave
Special brand-new control : 5-steps Linear Equalizer
General General
Dimensions : 48,5 x 30 x 16,5cm
Weight : 12,5kg.
Listprice : 100,000¥ (1973)
120,000¥ (1974)
Luxman L-308 : 0 topic
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page online since : august 2010
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