The best integrated amp in its class just got better! By incorporating the best elements of the critically-acclaimed ProLogue One and Two, plus many of the ground-breaking features from the more advanced DiaLogue Series, the next generation ProLogue Premium Series, is an engineering marvel a single, integrated amplifier that sets a new benchmark in high-performance audio.
Innovative, new Adaptive AutoBias circuitry. By simply flipping a switch, users can re-calibrate the amp for optimum operation of EL34s or KT88s. Every ProLogue Premium Series amplifier can be ordered with either set of power tubes installed. And remember, this circuit continuously monitors and adjusts each tube to run in its sweet spot. No biasingever!
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 output and power transformers. Modeled after those in the DiaLogue Series, these heavy-duty, high-efficiency transformers offer better control over challenging speaker loads, as well as increased detail and musicality.
New front-end circuitry. Optimized to use two 12AU7 tubes per channel. With the improved transformers, produces lower distortion.
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.
Conservative design parameters: Though PrimaLuna amplifiers are powerful, tubes run well below their maxim ratings. Click here to see why.
Next, the ProLogue Premium Series introduces four innovative circuits that protect the amp at every level:
BTI-circuit. BTI stands for "Bad Tube Indicator." On the chassis' deck in front of each power tube, is a small LED that lights up if the tube goes bad. This circuit works hand-in-hand with the new Adaptive Auto-Bias circuit.
PTP-circuit. If the power transformer should overheat, this "Power Transformer Protection" circuit cuts primary power, allows the amp to cool down, then resets itself.
OTP-circuit. The "Output Transformer Protection" circuit protects the output transformers in the event of a massive tube failure or user error.
+B relay. Replaces the plate fuse and works in conjunction with the OTP-circuit to protect the amp against tube failure. This method is less intrusive sonically and the relay resets itself once the faulty tube is replaced.
As with all PrimaLuna components, the ProLogue Premium Integrated is made by hand with the finest point-to-point wiring and quality equal toor better thanany product you can buy at any price. Built using premium parts featuring: ceramic tube sockets; Solen 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.
Output: 35 watts x 2 with EL34, 40 watts x 2 with KT88
Freq. Response: 20Hz-30kHz +/- 0.5dB
THD: Less than 1% at full power
S/N Ratio: 89 dB
Input Sensitivity: 300mV
Power Consumption: 300 watts
Inputs: 4 pair RCA / 1 pair HT bypass
Outputs: 4 and 8 Ohm speaker taps
Tube Compliment: 4 - 12AU7, 4 - EL34 (KT88 tubes optional)
Dimensions (WxHxD): 368 x 203 x 394 mm
- 16 February 2016 5.0
Very few valve amps nail the combination of performance, build, features, looks and reliability of PrimaLuna. The Prologue is a joy to use and offers a sweet valve sound that is both smooth & powerful.
- By Nathan (staff)