The phono stage is where analog playback lives or dies. Cartridge outputs are measured in fractions of a millivolt, the RIAA curve demands surgical accuracy across the entire audio band, and every millimeter of circuit layout can invite noise, hum, or vibration. The Luxman E-07 is a dedicated stereo phono preamplifier built to remove those variables from your system. It supports both moving magnet and moving coil cartridges, offers three separate phono inputs including a balanced XLR path, and applies Luxman's non-feedback RIAA equalization inside a heavy, resonance-controlled chassis. This deep dive walks through every circuit decision and control, explains why Luxman engineered it the way they did, and interprets what the published measurements actually tell you.
Topology and Amplification
What kind of phono preamplifier is the Luxman E-07?
The E-07 is a dedicated stereo phono preamplifier for both moving magnet (MM) and moving coil (MC) cartridges, meaning its entire circuit exists only to amplify and equalize a phono cartridge signal. Unlike the phono card built into an integrated amplifier, a standalone unit like the E-07 gets its own power supply, its own chassis, and its own ground reference, all isolated from the noise generated by line stages, digital sections, and power amplification. For an experienced enthusiast running a serious turntable, this separation is the single biggest reason to move to an external phono stage. It puts the most fragile amplification job in your entire system inside a box designed for nothing else.
Why does the E-07 use non-feedback RIAA equalization?
The E-07 applies its RIAA equalization as a non-feedback type, which means the correction curve is realized through a passive component network rather than by wrapping the equalization inside a global feedback loop. This matters because the RIAA curve is not gentle. Records are cut with bass reduced and treble boosted, so the phono stage must apply a large amount of low-frequency gain and high-frequency cut, spanning roughly 40 dB across the band. When you build that curve inside a feedback loop, the amount of feedback changes with frequency, which can compromise transient behavior and phase accuracy. A non-feedback (passive) equalization stage keeps the correction network independent of the gain stages, so the amplifier devices see a more consistent operating condition and the curve stays stable regardless of program material. The audible payoff is a phono stage that tracks fast transients cleanly and holds its tonal balance from the deepest grooves to the highest overtones.
What does the single RIAA curve specification mean?
The E-07 implements a single RIAA equalization curve, meaning it is optimized precisely for the standard RIAA de-emphasis used on virtually all modern vinyl records. Rather than offering a menu of alternate curves and spreading engineering effort across many partially optimized options, Luxman built one curve to a very tight tolerance and dedicated the component precision to getting it exactly right. You can see the result in the frequency response numbers discussed below. A tightly held single curve is what allows the E-07 to publish deviation figures in the tenths of a decibel.
How accurate is the frequency response, and why does that number matter?
The E-07 holds a frequency response of 20 Hz to 20 kHz within plus or minus 0.1 dB in MM mode and plus or minus 0.3 dB in MC mode. Those are exceptional figures for a phono stage because RIAA accuracy is difficult to achieve. A deviation of just a few tenths of a decibel in the wrong region audibly shifts tonal balance, thickening or thinning the presentation. The plus or minus 0.1 dB MM result tells you the passive equalization network uses closely matched, high-precision resistors and capacitors. The slightly wider plus or minus 0.3 dB MC figure is expected and honest, because MC operation adds the additional high-gain input stage in front of the equalizer, and every extra stage introduces small deviations. Both numbers indicate a phono stage that will not editorialize the recording. What was cut into the lacquer is what you hear.
How low is the distortion, and what does 0.003% THD tell an enthusiast?
The E-07 specifies total harmonic distortion of 0.003%, which is a very low figure for a circuit that must apply enormous gain to microscopic signals. Context is everything here. A moving coil low-output cartridge might deliver 0.12 mV, and the E-07 raises that to a usable line level while keeping harmonic distortion at three thousandths of a percent. That combination of high gain and low distortion is exactly what a well engineered gain structure delivers. Luxman's amplification philosophy, refined through circuits like ODNF and the current LIFES engine, has always aimed at keeping distortion and noise extremely low while preserving a natural, musical character rather than a sterile one. The 0.003% figure is the measurable side of that philosophy.
Gain, Loading, and Cartridge Matching
What gain settings does the E-07 offer, and how do I choose?
The E-07 offers three gain settings: 38 dB for moving magnet, 57 dB for high-output moving coil, and 66 dB for low-output moving coil. You choose based on your cartridge's output voltage, which is the whole point of these three modes. The corresponding input sensitivities are 3.2 mV for MM, 0.37 mV for MC High, and 0.12 mV for MC Low. Match the mode to your cartridge and you land at a healthy line level with maximum headroom and best signal-to-noise. Choose too little gain and you starve the downstream line stage, forcing it to work harder and adding noise. Choose too much gain and you risk overloading the input on high-modulation passages. Having a discrete MC Low setting at 66 dB is what lets the E-07 partner well with genuinely low-output cartridges, including Luxman's own LMC-5 line-contact moving coil.
What cartridge loading options does the E-07 provide, and why does loading matter?
The E-07 provides selectable MC loading of 4.7, 10, 40, 100, 300, and 1k ohm, with MM fixed at the standard 47 kohm. Loading matters because a moving coil cartridge behaves as an inductive source, and the resistive load you present to it damps the electrical resonance formed between that inductance and the input capacitance. Set the load too high and you can get a rising, peaky top end. Set it too low and you can hear a rolled off, over-damped presentation with reduced life. Because the ideal value depends on the specific coil impedance of your cartridge, a range from 4.7 ohm all the way to 1 kohm lets you dial in the exact sound your cartridge designer intended, or tune it to taste. This is a listening adjustment as much as a technical one, and having six well chosen points covers everything from very low impedance MC designs to higher impedance ones.
What is the MM capacitance adjustment for?
The E-07 offers selectable MM input capacitance of 0, 100, 220, and 320 pF, which tunes the high-frequency response of a moving magnet cartridge. A moving magnet cartridge forms a resonant circuit with the total capacitance it sees, which includes your tonearm cable plus the phono stage input. Most MM cartridges specify an ideal total load capacitance, often in the 100 to 300 pF range. By letting you add a known amount at the input, the E-07 lets you hit that target regardless of your cable's contribution. Too much capacitance produces a peak followed by an early treble rolloff, while too little leaves the response tilted up. Getting it right flattens the response and cleans up the presence region.
Should I use the subsonic filter?
The E-07 includes a switchable subsonic filter, which you should engage whenever you hear or measure very low frequency energy that does not belong to the music. Warped records, off-center pressings, and tonearm and cartridge resonance all generate infrasonic energy below the audible band, typically in the region around a few hertz to the low tens of hertz. That energy is inaudible as tone but very audible as trouble, because it drives woofer cones through wasteful long-throw excursions, muddies bass, and eats amplifier headroom. The subsonic filter rolls off this rubbish while leaving the music untouched. Making it switchable is the right call, because on flat, well pressed, well centered records you can leave it out of the signal path entirely for the purest possible response.
Connectivity and System Integration
How many turntables and tonearms can the E-07 support?
The E-07 provides three phono inputs, one balanced XLR and two unbalanced RCA, so you can connect multiple turntables or multiple tonearms and cartridges without swapping cables. This is a genuine convenience for the serious vinyl listener who runs, for example, a dedicated mono cartridge on one arm and a stereo MC on another, or two turntables voiced differently. Each input can be matched to its cartridge through the loading and gain settings, and you simply select the one you want to hear. For an enthusiast building a system around a Luxman turntable such as the PD-151 Mark II or the PD-191A, this flexibility means the phono stage grows with your collection of arms and cartridges rather than limiting it.
Why does the E-07 offer a balanced XLR phono input?
The E-07 includes a balanced XLR phono input because a phono cartridge is inherently a balanced source, and connecting it that way rejects noise picked up along the cable run. A cartridge is a coil with two ungrounded terminals per channel, which is exactly the differential arrangement a balanced input expects. When you run it balanced, any hum or interference induced equally on both conductors is cancelled at the input stage. Given that MC signals can be as low as 0.12 mV, that common-mode noise rejection is meaningfully valuable. The balanced input is the reason the E-07 can hold its published signal-to-noise figures even in electrically noisy real-world rooms.
What outputs does the E-07 provide?
The E-07 offers both balanced XLR and unbalanced RCA outputs, so it integrates cleanly with any preamplifier or integrated amplifier regardless of its input topology. If your line stage is a fully balanced Luxman design, the XLR output preserves the differential signal path from cartridge to preamp for the best noise rejection across the interconnect. If your line stage is single ended, the RCA output is there. Having both means the E-07 never becomes the limiting factor in how you wire your system.
How quiet is the E-07 in real terms?
The E-07 specifies signal-to-noise ratios of 88 dB for MM, 81 dB for MC High, and 78 dB for MC Low, all IHF-A weighted. These are strong figures, and the pattern is exactly what physics predicts. Noise performance falls as gain rises, because the more you amplify a tiny signal, the more you also amplify the input stage's own noise floor. An 88 dB result at MM's 38 dB of gain is very quiet, and a 78 dB result at MC Low's demanding 66 dB of gain is excellent given how much amplification is involved. In listening terms, this is the difference between a black background and an audible hiss between tracks. The quiet floor is what lets low level detail, hall reverb, and the decay of instruments emerge from silence.
Power Supply, Chassis, and Vibration Control
Why does a phono preamplifier weigh 13.2 kg?
The E-07 weighs 13.2 kg in a chassis measuring 440 by 92 by 407 mm because low noise phono amplification depends heavily on a robust power supply and a rigid, vibration-resistant enclosure. That mass is not decorative. A phono stage amplifies signals so small that the ripple and noise on its power rails must be pushed far below the music, which requires a substantial low-noise transformer and generous filter capacitance, both of which are heavy. The high-rigidity chassis is equally important because microphonics are a real enemy at these gain levels. Airborne vibration and structural resonance can couple into the circuit and modulate the sound, so Luxman uses heavy, machined construction to keep the electronics mechanically still. This is the same build philosophy Luxman has applied since 1925 and continues to apply from its Yokohama facility, and it is a large part of why the E-07 both measures and sounds the way it does.
Where the E-07 Sits in the Luxman Lineage
How does the E-07 fit within Luxman's phono range and history?
The E-07 sits as a dedicated, full-featured phono preamplifier above the more compact E-250 in Luxman's phono equalizer lineage, sharing the family commitment to MM and MC support with selectable loading and gain. Luxman has offered standalone phono stages for decades because analog playback has always been central to the brand's identity, and that heritage shows in the E-07's non-feedback RIAA implementation, its three inputs, and its heavy build. The E-07 is the natural partner for a Luxman analog front end, whether that is a PD-151 Mark II or the flagship PD-191A turntable fitted with an LMC-5 cartridge, and its balanced output slots neatly into Luxman's balanced integrated amplifiers and separates. For the enthusiast who has invested in the source, the E-07 is the component that honors that investment by extracting the signal cleanly, accurately, and quietly, then handing it to the rest of the system without editorializing.