Modular 4-band Equalizer, 500 Series, With 7 API-selected Frequency Centers, 12dB of Boost/Cut Per Band, and Proportional Q Control
หมายเลขสินค้า : AUDIO 550B
ราคา 64,500.00 บาท
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Modular 4-band Equalizer, 500 Series, With 7 API-selected Frequency Centers, 12dB of Boost/Cut Per Band, and Proportional Q Control
Based on API's original 550 from the late '60s, the API 550b is a continuation of the EQ that played a major role in the history of music recording, but with an additional filter band and several new frequencies. Incorporating API's exclusive circuitry and proprietary components (such as the legendary API 2520 Op Amp), the 550b artfully blends the past with the present. So many hit records still depend on the unique 550 sound that engineers around the world find it to be an invaluable tool. In fact, the 550b design has been taken from the original blue prints and spec control drawings from the API archives. It is unlike any other EQ you will ever use.
Rather than offer a huge assortment of complex features, the API 550b provides exactly the right number of controls. Its four EQ bands are overlapped significantly to aid in dual roles as problem solver and sweetening device with each band offering seven switchable filter frequencies that span four-to-five octaves. These frequencies, purposely selected to be musical rather than numeric, were selected by an experienced "who's who" list of the industry's most proficient engineers.
Making use of API's "Proportional Q," an innovation designed by Saul Walker in the '60s, the 550b intuitively widens the filter bandwidth at minimal settings and narrows it at higher settings without the need for additional bandwidth controls. This unique feature minimizes the "phase-shift" sound found in many equalizers. In addition, the reciprocal nature of the 550b enables the user to "undo" what has been done previously with exact precision.
The benefits of the API 550b are most obvious to those who work with EQ on a continuous basis. If major tonal restructuring is required, the extraordinary headroom made possible with API's 2520 Op Amp offers the predictable and warm analog performance, even under duress. With a surprisingly wide range of tonal variations, the 550b is an invaluable and professional audio tool with great flexibility and excellent sonic ability.
Features
- Four bands of our famous sounding equalization
- Each band offers seven API selected frequency centers
- Reciprocal and repeatable filtering
- 12 dB of boost/cut per band
- EQ band 1 and 4 offer shelf/peak switching
- "Proportional Q" narrows filter Q at extremes
- Traditional API fully discrete circuit design
- High headroom +30 dB clip level
- Re-issue of 1967 API 550 EQ with an extra band
A modern relative of a music-history favorite
The API 550 EQ played a major part in the history of music recording in the USA during the 60s and 70s. Originally conceived for use in API's consoles, this latest 550"B" version, the API 550b, is a continuation of the original 1967 550 through the 550A with one additional filter band and several new frequencies. Incorporating API's exclusive circuitry and proprietary components (such as the legendary API 2520 op-amp), the 550b blends the past with the present. So many hit records still depend on the unique 550 sound — and you'll find that the 550b will be an invaluable tool you'll turn to again and again.
API's "Proportional-Q" Control
Making use of "API Proportional-Q", a design introduced by API in the 60s, the 550b intuitively widens the filter bandwidth at minimal settings and narrows it at higher settings — without the need for additional bandwidth controls. This feature minimizes the "phase-shift" sound found in many equalizers.
Excellent at affecting or reversing tonal modifications
You'll be surprised by the possibilities the API 550b 4-band equalizer opens up. One of the 550b's most compelling features is its ability to affect or reverse tonal modifications. If major tonal restructuring is required, the extraordinary headroom made possible with API's 2520 op-amp offers predictable and gentle "analog" performance under duress. You've got a surprisingly wide range of tonal variations, just a few knobs away.
API's 500 Series: Long-term flexibility, lasting value
The beauty of the entire API 500 Series is its long-term flexibility and lasting value — especially when you consider that needs change over time. With a range of mounting frame options, the API 550b will be a valuable asset to your ever-changing studio rigs. It's also ruggedly designed with sound you just won't outgrow — crafted to be your sonic partner for year after year.
Specifications
Modular 4-band Equalizer
Filter Type:"Low" and "High" bands are Peak/Shelf switchable. Low-Mid and Mid-High are peaking type
Low Filter Frequency Center: 30, 40, 50, 100, 200, 300, 400Hz
Low-Mid Filter Frequency Center: 75, 150, 180, 240, 500, 700, 1Khz
Mid-High Filter Frequency Center: 800, 1.5K, 3K, 5K, 8K, 10K, 12.5K
High Filter Frequency Center: 2.5K, 5K, 7K, 10K, 12.5K, 15K, 20K
Filter Boost/Cut: +/- 12dB
Filter Slope: 12dB per Octave
Input Impedance: 18.5 K +4 in, 7.5 K -2 in
Output Impedance:Less than 75 Ohms
Nominal Levels: -15 to +15 dBu
Clipping Level: +30 dBu at +/-16 V
Frequency Response:+0, -.3, 30 to 20 kHz
Noise:Actual, unw noise, <-98 dBu, 20-20 kHz
Distortion:.07% max, at +18 dBu Output
Connectors:15 position .156sp edge connector
Size: 1.5" X 5.25" X 6" Deep
Weight: 2.5 lbs
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เวลา 9.30 - 18.30 น.
32 ซอยรามคำแหง 24 แยก 30 (หมู่บ้านศิขริน) แขวงหัวหมาก เขตบางกะปิ กรุงเทพมหานคร 10240
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English Version : 082-623-6663