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Kenwood L-07C

High End Stereo Control Amplifier (1977-81)

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Kenwood L-07C


The L-07C has an exclusively designed high-gain type equalizer amplifier which is absolutely free from various difficulties concerned with coupling capacitors, switch contacts etc.

In other words, it offers an ideal arrangement with it's outstanding input ICL circuit and two exclusively designed equalizers for connection to any turntable.


  • Frequency response: 20Hz to 50kHz

    Total harmonic distortion: 0.003%

    Input sensitivity: 0.2mV (MC), 2mV (MM), 140mV (line)

    Signal to noise ratio: 65dB (MC), 83dB (MM), 110dB (line)

    Channel separation: 100dB (line)

    Output: 140mV (line), 1V (Pre out), 10V (Pre out Max)

    Dimensions: 480 x 100 x 332mm

    Weight: 7kg

  • Frequency response: 20Hz to 20kHz

    Total harmonic distortion: 0.004%

    Input sensitivity: 0.2mV (MC), 2.5mV (MM), 140mV (line)

    Signal to noise ratio: 70dB (MC), 90dB (MM), 108dB (line)

    Output: 140mV (line), 1V (Pre out), 10V (Pre out Max)

    Dimensions: 480 x 100 x 340mm

    Weight: 7.8kg


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Reviewed Oct 19th, 2012 by Smoke Screen

This and his MK2 brother are very good pre amps.
True vintage high end pieces. Highly recommended
for the vinyl lover.



re: L-07C

Not only superb for MM or MC Vinyl. Just wish it had more high-level inputs. Also superb with CDs, DVDs, LDs, etc. Whatever the source, dynamic range is never an issue.

No one asked, but let's put price into perspective: Mark II's cost about $1K in 1983 = $2416 today.

After 30+ years, Attenuator (Volume) modules become noisy and intermittent with dead spots. Hitachi made these modules specifically for this PreAmp. Attenuation curves are matched to circuit characterstics of each section they control. Logically, they also have different PN's.
And, they are made of Unobtainium. Custom attenuation-curve GoldPoints are not a clean solution. GP dimensions conflict with PCB connection topography and attenuator shaft placement. Don't want to cut the PCB or mung-up the front panel now, do we?

There are similar, correct-pinout-configured Hitachi modules available here, in Japan & Germany. However, DO NOT permit a Repair Tech to attempt module substitution and adaptive circuit mods. Result will not meet test specs or your audible expectations. The OE Hitachi attenuator modules can be serviced/lubed/rebuilt by a competent technical service facility. Or, so they told me. Will report result.

Two observations:
1> Thermal management is woefully inadequate. Case panels are warm to the touch, IMHO that is inexcusable. Flat black radiates into lower ambient and absorbs from higher ambient, so provide lots of breathing room. Rack mounting is fine as long as PreAmp not placed directly above a warmer heat source. External fan(s) from room-ambient are highly recommended. Electrolytics are 105C rated but why accelerate their thermal demise. Eventually they burp and make corrosive mess on PCB(s).

2> 10 Ohm output impedance is critical specification of these units. L-09M's and L-07M's expect to see that as their source impedance. Power Amp testing requires a math- and Z-match-box-savvy Tech because most Test Oscillator outputs are 50 or 600 Ohm. Output Z spec also makes finding replacement from another Mfgr nigh impossible. Including McIntosh and others.

Having read Kenwood's L-series engineering white papers, I cannot fault their Technical Staff for this. In meeting system design goals they had very real challenges (patents) to overcome and low-Z output was part of the solution.
And no thank you, do not want a Z-box kludge in the signal path. Cheers!

re: L-07C

Cogent, specific assessment. Thank you!

Do you happen to know the years of mfg for the MKII's?

This website is not affiliated with or sponsored by Kenwood. To purchase L-07C/L-07C II spares or accessories, please contact the company via their website or visit an authorised retailer.