Want the ultimate? Classic Ultralinear all-tube sound, with all the body and glory that you could ask for. For an additional $800 over the EL-34 equipped DiaLogue Six, you will get an amplifier that has better bass authority, increased detail and definition, and a little more air on top, but never edgy.
In addition, the ProLogue Seven comes specially equipped with the following upgrades:
70 watts ultralinear, 40 watts triode with enough juice to drive most any speaker with ease and grace, and that famous EL-34 warmth people crave. The DiaLogue Seven monoblocks begin with the same basic topology as the top-rated DiaLogue Two integrated.
But the monoblocks reach a new level of performance using a unique dual-feedback topology: Cross-coupled current feedback for superior impulse behavior and gain stability. Next a slight amount of negative feedback is used to achieve exact gain setting, low distortion, and low output impedance. This effectively cancels the negative byproducts associated with both feedback circuits. The end result utilizes all the benefits of feed-back, without all the drawbacks.
Finally, the monoblocks integrate newly-designed, wide-band, low-loss, output transformers, built to handle even the most difficult speaker loads. Two transformers are wired in parallel in each amp for even greater control and bandwidth. A two Ohm output tap is added for additional flexibility.
Like all PrimaLuna amplifiers, it boasts:
Next we take the DiaLogue Seven to new heights with:
Built to Western standards with PrimaLuna's standard-setting build quality and unparalleled reliability.
Output: 70 watts ultralinear, 40 watts triode
Freq. Response: 10Hz-100kHz +/- 3dB
THD: Less than 0.25 percent @ 1 watt,
2 percent at full power
S/N Ratio: 84dB
Input Sensitivity: 1.1V
Power Consumption : 232 watts
Dimensions: 15.2" x 8.3" x 16" (WxHxD)
Weight: 63.8 lbs
Inputs: 1 single RCA
Outputs: 2, 4 and 8 Ohm speaker taps
Tube Compliment: 2 - 12AX7, 2 - 12AU7, 4 - KT88
Two years parts & labor. Six month warranty on stock vacuum tubes.
Terms & Conditions:
Posted by koryodell on 11th Jun 2013
I have had this amplifier for a few years pushing a varitey of speakers including the Magnepan 3.7. This is my amplifier of choice with the Magnepans. Other amplfiers (wyred for sound ST500, newclear NC1000, Adcom GFA 555 as monoblocks) might have more dynamics, but they just cant touch the tone these amplifiers have. If you want life like voices that make your toes curl, get this amp! They are magic with the mullard 12AX7 and 12AU7 combined withe the Winged SED 6550.
Posted by Divine Amoeba on 15th May 2013
Works beautifully and sounds amazing. Pairing it with martin logan spires causes the highs to be somewhat attenuated because the impedance drops to 0.8 at 20k, starts tapering off much sooner thus evident in the listening portion. Blown away at how this amp handles the lows on the Martin Logan spires. Tight, well defined base and plenty off it. Triode mode is quiet awesome for select tracks. Overall very happy with this purchase and looking to get speakers that dont present such a demanding load to pair with these amps