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WTT / Feeler: Eclipse 55090 HU
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<blockquote data-quote="dru" data-source="post: 1577452" data-attributes="member: 558410"><p>CD/DVDSECTION</p><p></p><p>Maximum output level: 5.9 volts</p><p></p><p>Frequency response (20 to 20,000 Hz, referenced to 1,000 Hz): +0.0, -1.4 dB</p><p></p><p>Channel separation: at 1,000 Hz, 87.2 dB; at 20,000 Hz, 74.1 dB</p><p></p><p>Dynamic range (A-weighted, referenced to 0 dB): 91.6 dB</p><p></p><p>S/N ratio (A-weighted, referenced to 0 dB): 92.7 dB</p><p></p><p>THD plus noise (with 1,000 Hz): at 0 dB, 0.015%; at -20 dB, 0.045%</p><p></p><p>LINEARITY ERROR (at -0 dB): +0.8 dB</p><p></p><p>INTERCHANNEL PHASE ERROR (at 20,000 Hz): 1.3 degrees</p><p></p><p>DE-EMPHASIS ERROR (at 16,000 Hz): 0.05 dB</p><p></p><p>MAXIMUM DEFECT TRACKING (with Pierre Verany Digital Test disc): 1,500 micrometers</p><p></p><p>TUNERSECTION</p><p></p><p>All measurements for FM only, except for frequency response.</p><p></p><p>MAXIMUM OUTPUT LEVEL (100% FM modulation): 3.6 volts</p><p></p><p>ADJACENT-CHANNEL SELECTIVITY: 15.1 dB</p><p></p><p>ALTERNATE-CHANNEL SELECTIVITY: 70.2 dB</p><p></p><p>CAPTURE RATIO (at 65 dBf): 2.5 dB</p><p></p><p>USABLE SENSITIVITY (mono, 75-ohm input): 13.6 dBf</p><p></p><p>50-dB QUIETING SENSITIVITY (mono, 75-ohm input): 22.1 dBf</p><p></p><p>CHANNEL SEPARATION (at 65 dBf and 1,000 Hz): 39.6 dB</p><p></p><p>THD PLUS NOISE (at 65 dBf): mono, 0.61%, stereo, 0.72%</p><p></p><p>S/N RATIO (A-weighted, at 65 dBf): mono, 69.1 dB; stereo, 66.0 dB</p><p></p><p>AM REJECTION (at 65 dBf): 63.1 dB</p><p></p><p>IMAGE REJECTION: 66.0 dB</p><p></p><p>FM FREQUENCY RESPONSE (30 to 15,000 Hz, referenced to 1,000 Hz): +0.8, -0.5 dB</p><p></p><p>AM FREQUENCY RESPONSE (30 to 3,000 Hz, referenced to 1,000 Hz): +0.9, -9.1 dB</p><p></p><p>39011 SURROUND PROCESSOR</p><p></p><p>MAXIMUM OUTPUT LEVEL: 7.7 volts</p><p></p><p>FREQUENCY RESPONSE (20 to 20,000 Hz, referenced to 1,000 Hz): +0.0, -1.2 dB</p><p></p><p>CHANNEL SEPARATION: at 1,000 Hz, 72.8 dB; at 20,000 Hz, 76.3 dB</p><p></p><p>DYNAMIC RANGE (A-weighted, referenced to 0 dB): 99.9 dB</p><p></p><p>S/N RATIO (A-weighted, referenced to 0 dB): 97.6 dB</p><p></p><p>THD PLUS NOISE (with 1,000 Hz): at 0 dB, 0.02%; at -20 dB, 0.03%</p><p></p><p>D/A LINEARITY (at -90 dB): +0.6 dB</p><p></p><p>INTERCHANNEL PHASE ERROR (at 20,000 Hz): 1.2 degrees</p><p></p><p>The Eclipse 55090 DVD tuner turned in good bench numbers. The CD section had good output level, a good S/N ratio, low distortion, and good D/A linearity. Its frequency response had a mild 1.4-dB rolloff at the high end. Its tuner section was slightly better than average, with good S/N and selectivity numbers and good FM frequency response. I wished FM distortion had been slightly lower, but it was about average for head units. The 39011 processor had similarly good performance, with good S/N and distortion figures. No problems here. —KCP</p></blockquote><p></p>
[QUOTE="dru, post: 1577452, member: 558410"] CD/DVDSECTION Maximum output level: 5.9 volts Frequency response (20 to 20,000 Hz, referenced to 1,000 Hz): +0.0, -1.4 dB Channel separation: at 1,000 Hz, 87.2 dB; at 20,000 Hz, 74.1 dB Dynamic range (A-weighted, referenced to 0 dB): 91.6 dB S/N ratio (A-weighted, referenced to 0 dB): 92.7 dB THD plus noise (with 1,000 Hz): at 0 dB, 0.015%; at -20 dB, 0.045% LINEARITY ERROR (at -0 dB): +0.8 dB INTERCHANNEL PHASE ERROR (at 20,000 Hz): 1.3 degrees DE-EMPHASIS ERROR (at 16,000 Hz): 0.05 dB MAXIMUM DEFECT TRACKING (with Pierre Verany Digital Test disc): 1,500 micrometers TUNERSECTION All measurements for FM only, except for frequency response. MAXIMUM OUTPUT LEVEL (100% FM modulation): 3.6 volts ADJACENT-CHANNEL SELECTIVITY: 15.1 dB ALTERNATE-CHANNEL SELECTIVITY: 70.2 dB CAPTURE RATIO (at 65 dBf): 2.5 dB USABLE SENSITIVITY (mono, 75-ohm input): 13.6 dBf 50-dB QUIETING SENSITIVITY (mono, 75-ohm input): 22.1 dBf CHANNEL SEPARATION (at 65 dBf and 1,000 Hz): 39.6 dB THD PLUS NOISE (at 65 dBf): mono, 0.61%, stereo, 0.72% S/N RATIO (A-weighted, at 65 dBf): mono, 69.1 dB; stereo, 66.0 dB AM REJECTION (at 65 dBf): 63.1 dB IMAGE REJECTION: 66.0 dB FM FREQUENCY RESPONSE (30 to 15,000 Hz, referenced to 1,000 Hz): +0.8, -0.5 dB AM FREQUENCY RESPONSE (30 to 3,000 Hz, referenced to 1,000 Hz): +0.9, -9.1 dB 39011 SURROUND PROCESSOR MAXIMUM OUTPUT LEVEL: 7.7 volts FREQUENCY RESPONSE (20 to 20,000 Hz, referenced to 1,000 Hz): +0.0, -1.2 dB CHANNEL SEPARATION: at 1,000 Hz, 72.8 dB; at 20,000 Hz, 76.3 dB DYNAMIC RANGE (A-weighted, referenced to 0 dB): 99.9 dB S/N RATIO (A-weighted, referenced to 0 dB): 97.6 dB THD PLUS NOISE (with 1,000 Hz): at 0 dB, 0.02%; at -20 dB, 0.03% D/A LINEARITY (at -90 dB): +0.6 dB INTERCHANNEL PHASE ERROR (at 20,000 Hz): 1.2 degrees The Eclipse 55090 DVD tuner turned in good bench numbers. The CD section had good output level, a good S/N ratio, low distortion, and good D/A linearity. Its frequency response had a mild 1.4-dB rolloff at the high end. Its tuner section was slightly better than average, with good S/N and selectivity numbers and good FM frequency response. I wished FM distortion had been slightly lower, but it was about average for head units. The 39011 processor had similarly good performance, with good S/N and distortion figures. No problems here. —KCP [/QUOTE]
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