I confirmed this by comparing sound files of identical content but varying resolution. When I compared the NuForce AVP-18 to the Marantz AV8801 (at three times the price), I did hear some harshness and loss of transparency in the midrange, and a bit of tizziness in the extreme treble. Voices always sounded clear and natural, and the bass could not be faulted. ![]() After I manually applied the appropriate room/speaker correction, the AVP-18's sound was quite satisfying in all aspectsonly the hypercritical among us (the majority, perhaps?) would be bothered by its somewhat shallow, if wide, soundstage, and a loss of richness in the low midrange. The sound quality, if I can generalize from all the setup options, was well balanced across the audioband, and overall resolution and imaging were quite good. Switching among inputs and formats was brisk and silent. Operationally, the NuForce AVP-18 was flawless. I was able to transfer filters from XTZPro for just the bass, or from Room EQ Wizard for wider spectrum correction into the NuForce's Manual EQ 1 and Manual EQ 2 setups, and compare them to the NuForce's AutoEQ and so-called Flat (no EQ) options. The three filters in the subwoofer channel are similar, except for frequency (20≣00Hz). ![]() This can be extremely effective: each of the 11 filters for the five main channels permits adjustment of frequency (20Hz≢0kHz), gain (☑2dB), and Q (0.125≢4). Completely unacceptable and inferior to the out-of-box sound before any adjustments to these parameters were made!įortunately, the Cirrus chipset in the AVP-18 offers a potent parametric equalizer. The audible result of all this was a harsh midrange, somewhat boomy but hollow bass, and a strong image shift to the left. In addition, the filters chosen by NuForce's AutoEQ, and confirmed by my ears, revealed very large corrections throughout the midrange and none for the subwoofer.
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