คำอธิบาย
Warwick BC150 Bass Combo Amplifier
ตู้แอมป์เบส Warwick BC150 กําลังวัตต์ 150 วัตต์ ขนาดลำโพง 15 นิ้ว, Warwick Custom Speaker, 4″ High frequency horn, Bass reflex Housing, Rugged metal grill, Class A Low Noise Preamp, 4 Way EQ with controls for bass, deep mid, high mid and treble
A series of compact amplifiers for Bass instruments like nothing you have seen or heard before. These full frequency, extended headroom, integrated combo amps could be used for virtually any amplified instrument but are specifically tuned to the unique needs of Electric and Upright Bassists.
Features:
- Bass combo 150 Watt Power Amp
- 15″ Warwick Custom Speaker 4″ High frequency horn
- Bass reflex Housing Rugged metal grill
- Class A Low Noise Preamp 4 Way EQ with controls for bass, deep mid, high mid and treble
- DDL (Dynamic Distortion Limiter) for distortion-free reproduction at high levels
- Cooling by air circulation in the bass reflex cabinet. No fan noise
- 2 Inputs for active or passive Basses
- The two instrument inputs are suitable for 2 instruments at the same time
- Line Output with Ground Lift switch
- FX Loop
- Aux Stereo-Input, Mini jack for connecting MP3 player, CD player etc.
- Integrated headphone amplifier. Aux in stereo signals over headphones in stereo
- Dimensions in mm: (B/H/D) 540 x 560 x 390
- Weight: 23,46 kg / 51,6 Lbs
Consumers of recorded music have grown accustomed to the improvements in performance and sound resulting from the development of high quality, lower cost electronics. The bass world has enjoyed little benefit from this progress. Warwick%u2019s new line of compact Bass Instrument Combo amps is destined to change this by introducing improvements in circuit design, speaker design, manufacturing, and much improved component integration.
Our considerations in these amp designs were multifold and our objective is to provide:
- An aspiring bass players first amp.
- A seasoned professionals “residential amp” (to be used for practicing and pleasure playing at home).
- A backstage tune-up/warm-up amp.
- A teachers amp where both the student and the teacher can plug in simultaneously while playing musical examples with a music player through the auxiliary input.
- An amp for rehearsals, where space and sound levels are limited.
CLASS-A CIRCUITRY
Class-A amplifiers are typically more linear and, as such, are less complex than other amplifier classes. The amplifying element is biased so the device is always conducting to some extent. This means the amplifier is always
on, avoiding the problem of crossover distortion associated with class-AB and -B designs.
Low-Z CIRCUITRY
By lowering the impedance inside an electronic circuit you lower the amount of thermal noise. In an amp where you have tone controls that lift mids and highs a considerable amount, proper impedance level makes the difference between enduring audible annoying hiss, and enjoying a pleasant tonal experience.
DYNAMIC DISTORTION LIMITER (TM)
Distortion occurs when an amplifier works beyond its range, when the power supply cannot supply the power any more to take the amp higher. A common method to control distortion in amps is to use a limiter, a device that stops the signal going beyond a specific level. Audio limiters work by setting a threshold signal level where the circuit kicks in and keeps signal levels within the capabilities of the power supply. This method is not very precise and often causes audible effects such as pumping and thumps. We designed a circuit that instead reads the distortion level in the power amp and starts limiting as soon as the amp shows even miniscule amounts of distortion. This means our amps always stay within 0.3% distortion (THD) when most amps are rated at between 5-10% distortion (that means that to get your 150 Watt out of a 150 Watt amp you will get it audibly distorted and if you want a clean signal the power will be a lot less).
