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PrimaLuna ProLogue Premium Preamplifier
If you want the award-winning, giant-killing, heart-pumping, music-making DiaLogue Premium Preamplifier, but can’t afford $3199, there’s no reason to feel sad.
Yes, the DiaLogue Premium gets all the reviews, but only because we can send a magazine only one model to review, so we send the most expensive one. This is what you need to know: The ProLogue Premium preamp is almost an exact DNA match with its big brother. It would take a real expert to tell them apart; either from reading the schematics and build sheet or from the incredible performance.
We say this with calm assurance: The ProLogue Premium is built better and will sound better than $5000 offerings from any of the big name brands. If you don’t believe us, call PrimaLuna atand tell us what other product you are considering. We will tell you exactly HOW it is better.
How can we do that? First of all, we don't overcharge our customers. Don’t buy into the hype. Have you noticed that most companies making preamps for $3000-$5000 will tell you it’s a "miniature version" or it’s "inspired by" their $10-20K flagship model? Look inside, the designs are nothing alike. Listen to us when we tell you this: In the last 10-15 years manufacturers have decided to double their profit margins by putting fewer, less expensive parts in the box. Just a little bit cheaper made every year, so you don't notice it. The product will still sound good because making a preamp is easy, but is NOT worth what they want to charge you. We’re calling them out on this. That 13-pound preamp they want to sell you for $4500 should cost no more than $1999.
There has not been a new design in tube preamps for decades. There have been improvements in some areas, but they are all built in the following ways: Preamps with one or two tubes are either hybrid (cheap to make) or use a lot of feedback. If they have four or more tubes, they use one of several designs, many of which have been around since the 1940's.
The top-tier, most expensive preamps selling for $10,000 or more will have tube rectification so they are "pure tube." Many of these "flagship" preamps will also be dual-mono, so they don’t share parts between channels, yielding better separation. They will have point to point wiring instead of thin printed circuit boards to carry the signal (though even some flagship preamps still use circuit boards). Then, they will use a high-quality analogue potentiometer volume control instead of a $2.50 volume “chip”.
PrimaLuna uses TWO 5AR4 rectifier tubes, one for each channel in a true dual-mono circuit that is all point-to-point wired using the highest quality parts including the awesome Alps Blue Velvet volume control. All things included in this incredible preamp weighing in at an amazing 37.5 pounds.
PrimaLuna buyers are typically well-seasoned tube-heads, and they know all this stuff. If you are new to tube preamps, you can help yourself by doing two simple things: Take the name and model of the product you are considering, and put it into Google. Then, get the weight and click on “Images” so you can see exactly what you are getting inside. Funny, we do that type of investigation in most everything we buy, but only in high-end audio do we get influenced by fairy dust.
We don’t offer fairy dust. We offer world-class European engineering, the finest name-brand parts, and workmanship that’s been declared over and over by experts to be untouchable.
- New power transformers. Heavy-duty, dual-mono, power transformers increase control and detail. The preamp weighs in at a substantial 37.5 pounds.
- Home theater pass-thru. Straight from the critically-acclaimed DiaLogue Series, this direct-line circuitry means less noise and coloration over unity gain circuits.
- New front end circuitry. Optimized to use two 12AU7 tubes per channel. Combines with the improved power transformers to further lower distortion, dropping by a factor of 20 at output levels above one volt! This in turn dramatically improves sound quality.
- PTP-circuit. If the power transformer should overheat, this innovative "Power Transformer Protection" circuit cuts primary power, allows the preamp to cool down, then resets itself.
- Full-function remote. Slim, anodized aluminum remote, controls volume, mute, and source selection, as well as Play/pause and Stop/eject functions of the new ProLogue Premium CD Player.
As with all PrimaLuna components, the ProLogue Premium Preamplifier is made by hand with the finest point-to-point wiring and quality equal to—or better than—any product you can buy at any price. Built using premium parts featuring: ceramic tube sockets; Solen, Swellong, and Nichicon capacitors; WBT-style solid core speaker terminals; ALPS Blue Velvet volume control; gold-plated RCA jacks; toroidal power transformer. All packaged in a high-gloss, hand-rubbed finish.
|Inputs||4 Pair RCA +
1 Pair HT bypass
|Outputs||2 RCA Preamp Outs
1 Pair RCA Fixed Tape Out
|Freq. Response (+/- 3dB)||4Hz - 85kHz|
|THD||Less than 1% at full power|
|S/N Ratio||109 dB unweighted|
|Input Impedance||100k Ohms|
|Output Impedance||2800 Ohms|
|Power Consumption||46 Watts|
|Standard Tube Compliment||4 - 12AU7
2 - 5AR4
|Dimensions (WxHxD)||14.5" x 8" x 15.5"|