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楼主 |
发表于 2012-9-22 11:36
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回复 38# x_cg518 还是厂商给的 图 漂亮
它的频响平直度是+1,-1.5db,据说是最平直的有源监听。通常是+/-1.5db。叧外,此曲线在消音室测量,没有反射声波干扰,加上纵坐标单位精细度粗及曲线平滑化,看上去会感动你。如果釆用DSP分音,肯定比它好,看下图是我测的一只中音图;
另符上该箱的参数;
Specifications:
System:
Frequency Response (+1, -1.5 dB): 50 Hz - 20 kHz
Enclosure Resonance Frequency: 38 Hz
Low Frequency Extension: User controls set to default
-3 dB: 46 Hz
-10 dB: 36 Hz
Low-High Frequency Crossover: 1.7 kHz 6th-order acoustic Linkwitz-Riley
Distortion, 96 dB SPL, 1 m:
Mid-High Frequency (120 Hz - 20 kHz):
2nd Harmonic: <0.6%
3rd Harmonic: <0.5%
Low Frequency (<120 Hz):
2nd Harmonic: <2%
3rd Harmonic: <1%
Maximum SPL (80 Hz - 20 kHz): >108 dB SPL / 1m
Maximum Peak SPL (80 Hz - 20 kHz): >111 dB SPL / 1m
Signal Input: Neutrik “Combi” XLR-¼-in tip-ring-sleeve balanced or unbalanced
positive voltage applied to XLR pin 2 (¼" tip) produces
outward woofer motion
Calibrated Input Sensitivity, XLR & ¼":
+4 dBu / +8 dBu: 96 dB SPL / 1 m
-10 dBV: 96 dB SPL / 1 m
AC Input Voltage: 100 /240 VAC, 50/60 Hz (auto sensing)
AC Input Connector: IEC
Long-Term Maximum System Power: 220 watts (IEC265-8)
Self-Generated Noise Level: <10 dBA / 1 m Tonal-artifact-free noise floor
User Controls:
High Frequency Control (2 kHz - 20 kHz): +1 dB, 0 dB, -1 dB
Low Frequency Control (< 100 Hz): 0 dB, -2 dB
Low Frequency Alignments: 36 dB/octave, 24 dB/octave (VLF protection off)
Calibrated Input Sensitivity: -10 dBV, +4 dBu, +8 dBu
Boundary Compensation Settings: 0, -1.5, -3.0, -4.5 dB
Variable Input Attenuation: 0 dB to -13 dB
RMC External Bypass: ¼" jack
RMC Active Switch: In/Out
RMC Frequency Adjust: 26 Hz - 96 Hz (10th octave, 18 centers)
RMC Depth Adjust: 0 - 14 dB (cut only)
RMC Q Adjust: 1/20th to 1/2 octave, 21 steps
Transducers:
Low Frequency Model: 218F
Diameter: 203 mm (8 in)
Voice Coil: 38 mm (1.5 in) Differential Drive® with dynamic braking coil
Magnet Type: Ferrite, with integral heat sink
Cone Type: Carbon fiber composite
Impedance: 2 ohms
High Frequency Model: 053TiS
Diameter: 25 mm (1 in) diaphragm
Voice Coil: 25 mm (1 in)
Magnet Type: Ferrite, shielded
Diaphragm Type: Damped titanium composite
Other Features: Elliptical oblate spheroidal waveguide
Impedance: 4 ohms
Amplifier:
Low Frequency:
Topology: Class A-B, all discrete
Sine Wave Power Rating: 250 watts (<0.1% THD into rated impedance)
THD + N, ½ Power: <0.05%
High Frequency:
Topology: Class A-B, monolithic
Sine Wave Power Rating: 120 watts (<0.1% THD into rated impedance)
THD + N, ½ Power: <0.05%
Physical:
Finish: Smooth dark graphite
Handles: 2 each, flush mounted on sides
Mounting: 4 threaded mounting points conforming to industry standard
square pattern, 127 x 70 mm (5 x 2.75 in) center to center. M6
metric threads.
Enclosure Volume (net): 28 liter (1 cu ft)
Low Frequency Vent: Rear ported linear dynamics aperture (integrated with
amplifier heat sink)
Baffle Construction: Injection-molded structural ABS
Enclosure Construction: 19 mm (¼ in) MDF
Net Weight: 17.7 kg (39 lb)
Dimensions (HxWxD): 406 x 330 x 325 mm (16 x 13 x 12.8 in)
Caution: Unsafe mounting or overhead suspension of any heavy load can result in serious injury and equipment |
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