Para despejar mas dudas, un ejemplo de un modelo sustituto y mucho mas capaz y moderno al modelo que "Ragar" nos cita.
Manufacturer: Velodyne
Model: CHT-15R
Kindly provided by: Geezer
Manufacturer link: http://www.velodyne.com/products/pro...1&sid=432w191k
RRP: £795
Manufacturer specs:
Power Requirements: 230V, 50 Hz
Configuration: Extended Excursion Slot-Loaded Bass-Reflex
Driver: 15" forward firing(12.7" piston diameter) with vented pole piece
Frequency Response: 23-120 Hz +/-3 dB
Distortion Limiting System: Yes
High Pass Crossover(Digital): 80 or 100 Hz(6 dB/octave slope)
Low Pass Crossover(Digital): 40 Hz-120 Hz (adjustable)(12 dB octave, 24 dB ultimate)
Digital Phase: 0, 90, 180, 270 degrees
Digital Presets: Movies; R&B-Rock; Jazz-Classical; Games
Auto On/Off: Yes
Continuous Power: 600 watts
Dynamic Power: 1000 watts
Magnet: 4.4 lbs.
Voice Coil: 2.5" 4-layer copper
Inputs: Gold plated line-level and speaker-level
Outputs: Line-level
Crossover bypass: Subwoofer Direct
Cone: Reinforced fiber
Cabinet (H/W/D): 21" x 18.375" x 20.75"
Weight (approx.): 83 lbs.
Finish: Black Gloss Lacquer Front with Black Ash Vinyl body
Configuration as tested:
Preset: Jazz-Classical
Low Pass Crossover: Subwoofer Direct
Phase: 0
Como podemos ver este modelo en especificaciones dice que baja hasta 23hz +-3dB, pero la verdad es que no es cierto, esto pasa igual que con el otro modelo mencionado de "Ragar", solo es capaz de esto:
Frequency Response: +/-3dB points: 29.2Hz -> >150Hz
Ahora un buen Sub, reconocido por si precio excelente al igual que sus prestaciones de envidia en el rango de su precio y categoría, solo un par de ellos están a la altura y es el Monolith:
B.K. Electronics: Monolith DF
Manufacturer: B.K. Electronics
Model: Monolith DF
Kindly provided by: Slartibartfast
Manufacturer link: http://www.bkelec.com/HiFi/Sub_Woofe...ithDFandFF.htm
RRP: £406.95
Manufacturer specs:
System Type: 95 Litre reflex tuned to 20Hz, cabinet manufactured from veneered 25mm MDF and Critically braced
Distortion: 5% 102dB @ 20Hz
Frequency Response at -3dB: 20Hz / In Room at 15Hz
Amplifier Input / Output Impedance: High Level 100K - Low Level 10K - Balanced 10K
Gain Control Range: 80dB
Drive Unit Impedance: 4 Ohm
Mains Input: 230V / 50Hz
Dimensions: 420D X 604H x 540W
Weight: 46.75kg
Finishes: Black Ash Veneer, <u>Light Oak Veneer</u> and Cherry Veneer
Configuration as tested:
Phase: 0
Frequency Contour: Max (LFE)
Aquí su respuesta de frecuencia, superior en promedio al anterior modelo:
Frequency Response: +/-3dB points: 18.9Hz -> >150Hz
El Velodyne, no esta mal, pero dado su precio y como se ve, el Monolith es un modelo superior.




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