API 550A Equalizers 799456981758 500 3-BAND

( Brand: Api ), ( Manufacturer Part Number: 550A ), ( Type: Equalizer ), ( Effect/enhancement: Parametric Equalization ), ( UPC: 799456981758 )

Review API 500 Series 3-band Equalizers

Introducing the 550A 3-Band Equalizer (API Model 799456981758), a versatile and high-performance audio equalization solution designed to meet the demands of professional recording studios and live sound applications. This equalizer is a part of API's renowned 500 series, ensuring a compact, rugged design that fits seamlessly into standard 500-series racks.

The 550A 3-Band Equalizer features three fully discrete, individually balanced, and adjustable bands. Each band covers a crucial frequency range for audio equalization: Low (approximately 30 Hz to 250 Hz), Mid (approximately 250 Hz to 2.5 kHz), and High (approximately 2.5 kHz to 16 kHz). This configuration allows users to effectively address issues related to bass response, midrange clarity, and treble brightness in their audio signals.

Each band comes equipped with API's iconic Shelving filters, giving users the flexibility to boost or cut frequencies beyond the band's center frequency. Furthermore, the equalizer's Q factor is continuously variable, allowing users to fine-tune the bandwidth of each frequency shelf to achieve precise adjustments.

The 550A 3-Band Equalizer boasts a high-quality, discrete design that ensures a natural, musical sound. Its transformer-coupled input and output stages provide superior common-mode noise rejection and excellent headroom, ensuring that the equalizer can handle even the most demanding audio sources.

Additionally, the 550A 3-Band Equalizer offers a simple, intuitive front panel layout with clear, easily readable indicators for gain settings. The unit is also equipped with a bypass switch for each band, enabling users to quickly compare the equalized and unaltered signals.

In summary, the 550A 3-Band Equalizer (API Model 799456981758) is a powerful and versatile audio equalization tool that offers professional-grade performance, a natural and musical sound, and the flexibility to tackle a wide range of frequency-related issues. Whether you're working in a recording studio or live sound environment, this equalizer is an essential addition to your 500-series rack.

Three-band equalizers, such as the API 550A 500-series 3-band Equalizer (API Model Number: 799456981758), are commonly used audio processing devices to shape the frequency response of an audio signal. Here are some potential pros and cons of buying this specific model:

1. Versatile: The API 550A 3-band equalizer provides control over the high, mid, and low frequency bands, making it a versatile tool for addressing various equalization needs.

2. High-quality sound: API is known for producing high-quality audio equipment, and the 550A series is no exception. This equalizer should provide clear and precise sound shaping.

3. 500-series format: The 550A is part of the API 500-series, which is a popular format for modular audio processing equipment. This makes it easy to integrate with other 500-series devices in a rack.

4. Discreet design: The API 550A has a discreet design, which can help minimize the visual clutter of a rack filled with various audio processing devices.

5. Easy to use: The API 550A has straightforward controls, making it easy for users to adjust the frequency bands and gain levels as needed.

1. Limited frequency range: Compared to more advanced equalizers, the API 550A only provides control over a relatively limited frequency range. This might not be suitable for more complex equalization tasks.

2. Limited number of bands: The API 550A is a three-band equalizer, meaning it only provides control over three distinct frequency bands. More advanced equalizers may offer more bands for finer frequency control.

3. Expensive: The API 550A is a high-end equalizer, and its price reflects its quality. This might not be an affordable option for those on a tight budget.

4. Requires external power supply: The API 550A requires an external power supply to function, which can add to the overall cost and complexity of setting it up.

The API 550A 3-band Equalizer is a high-quality audio processing device with a versatile three-band design, making it a valuable addition to any audio workflow. However, its limited frequency range and number of bands might not be suitable for more complex equalization tasks. Additionally, its high price and requirement for an external power supply are important considerations. Ultimately, the decision to purchase the API 550A should be based on your specific equalization needs and budget.

If you're in need of a versatile and high-quality three-band equalizer and have the budget for it, the API 550A 3-band Equalizer is an excellent choice. However, if you require more extensive frequency control or a larger number of bands, you might want to consider a more advanced equalizer model. Additionally, if budget is a concern, you might want to explore more affordable options from other manufacturers.

Details:

After all of the fees and shipping this is a great price. They sound great on many instruments, use them as a favorite drums. They have Api 2520 op amps in them. We wish to sell them as a bundle.

Serial Numbers #508.0530, #508.0542, #508.0543, #508.0544. All are in excellent condition. 4 Api 550A EQ taken out of 1608 console. They were built in 2008 and have been serviced regularly taken well care of.

This is why they are being sold to help pay for other gear. They are punchy sounding API EQ's.

specifications signalprocessorgo:

• brand: Api
• mpn: 550a
• type: Equalizer
• effect/enhancement: Parametric Equalization
• upc: 799456981758

payments signalprocessorgo:

• credit card: Diners-club
• other
• wallet: Google-pay

general signalprocessorgo:

• Musical Instruments Gear > Pro Audio Equipment > Signal Processors/Rack Effects
• condition: Used

shipping signalprocessorgo:

• carrier: FedEx
• cost: $0.00
• transit: 5-11 Days
• service: FedEx Ground Economy
• type: Calculated
• class: Economy

seller signalprocessorgo:

• # reviews: 127
• rating: 0.0%
• city: Rives Junction, Michigan

returns signalprocessorgo:

• policy: No Returns

offer signalprocessorgo:

• sold: 0
• availability: In Stock
• started: August 7, 2025
• options: Ship-to-home
• quantity: 1

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