1. Signal Processors For Sale
  2. sku: 1437485168278252
  3. API AUDIO 550A-1

API AUDIO 550A-1 Discrete Equalizer Scott Melcor Op 3-BAND 500 1731

550a-1 Api Audio Modified Discrete

( Brand: Api Audio ), ( Model: 550A-1 ), ( Type: Equalizer ), ( Effect/enhancement: Parametric Equalization ), ( Form Factor: Modular ), ( Country/region Of Manufacture: United States )

Review API AUDIO Modified Discrete 3-band Equalizer 500 Scott Melcor Op Amps

The 550a-1 API Discrete 3-Band Equalizer, model 500, is a highly regarded audio processing device, designed and manufactured by Scott-Melcor, under the 1731 OP series. This equalizer is a faithful reproduction of the classic 550A equalizer, renowned for its warm and musical sound character.

The 550a-1 API Discrete 3-Band Equalizer is a transformer-coupled, fully discrete, and fully balanced equalizer. It features three separate bands, each with a dedicated frequency control, gain control, and Q control. The low-frequency band operates at 40 Hz to 600 Hz, the mid-frequency band at 600 Hz to 4 kHz, and the high-frequency band at 4 kHz to 16 kHz. This precise frequency separation allows for precise and subtle adjustments to the frequency spectrum of your audio signal, making it an indispensable tool for audio engineers and producers.

The 550a-1 API Discrete 3-Band Equalizer is built using high-quality components, including discrete transistors, transformers, and capacitors. This results in a signal path that is rich in harmonic content, delivering a warm and musical sound. The transformer-coupled design also provides excellent isolation between input and output, minimizing the risk of ground loops and hum.

The equalizer's control knobs are smooth and well-calibrated, allowing for precise adjustments to the frequency and gain settings. The Q control allows for a wide range of bandwidth, from narrow and focused to broad and subtle. The equalizer also features an insertion point, allowing you to process your audio signal before or after the equalizer, providing maximum flexibility.

The 550a-1 API Discrete 3-Band Equalizer is housed in a rugged and durable metal chassis, with a classic, retro design that is both functional and aesthetically pleasing. It is equipped with balanced XLR inputs and outputs, making it compatible with a wide range of audio equipment.

In summary, the 550a-1 API Discrete 3-Band Equalizer is a top-quality equalizer that delivers a warm and musical sound, with precise frequency control and excellent isolation. Its high-quality components, smooth control knobs, and robust design make it a versatile and reliable tool for audio professionals and enthusiasts alike.

Pros of the 550A-1 API Discrete 3-Band Equalizer:

1. High-quality discrete circuitry: The 550A-1 uses discrete components, which can provide a more natural and musically pleasing sound compared to integrated circuits.

2. Classic 3-band equalizer design: The 3-band design allows for precise control of bass, midrange, and treble frequencies, making it a versatile and powerful tool for mixing and mastering.

3. API's reputation for excellence: API is a well-known and respected manufacturer of high-end audio equipment, and the 550A-1 is no exception.

4. Analog circuitry: Analog circuitry can provide a warmer and more organic sound compared to digital processing.

Cons of the 550A-1 API Discrete 3-Band Equalizer:

1. High price: The 550A-1 is a high-end equalizer, and its price reflects its quality. It may be too expensive for some budgets.

2. Limited features: Compared to more advanced equalizers, the 550A-1 has a limited number of features, such as only 3 bands of equalization and no parametric controls.

3. Size and weight: The 550A-1 is a large and heavy piece of equipment, which can make it difficult to transport or move around a studio.

Conclusion:

The 550A-1 API Discrete 3-Band Equalizer is a high-quality analog equalizer that can provide a warm and musical sound. Its discrete circuitry and classic 3-band design make it a versatile and powerful tool for mixing and mastering. However, its high price, limited features, and size and weight may make it less suitable for some budgets or applications. If you have the budget and need the high-end sound quality, then the 550A-1 is a great choice, but if you are looking for more features and compact design, you may consider other options with more features and smaller size.

Recommendation:

If you are looking for a high-end analog equalizer with a classic 3-band design and a warm and musical sound, the 550A-1 API Discrete 3-Band Equalizer is a great choice. However, make sure to consider your budget and needs before making a purchase. If you need more features or a smaller size, you may want to explore other options.

Details:

They have a similar mid range to the vintage 2520s, but snappier, faster bass and cleaner highs. This eq sounds crisp and detailed. The melcor was before for sale Api 550a classic eq modified with scott libbers 1731 recreation.

part #: 550a1 prices

  • $1365.00-$1495.00

specifications signalprocessorgo:

  • brand: Api Audio
  • model: 550a-1
  • type: Equalizer
  • effect/enhancement: Parametric Equalization
  • form factor: Modular
  • country/region of manufacture: United States

Payments signalprocessorgo:

  • PayPal

Ratings:

  1. Prompt payment, valued customer, highly recommended! - Sellular Deals 12-08-16
  2. Hope to deal with you again. Thank you. 11-30-16
  3. Good buyer, prompt payment, valued customer, highly recommended. 11-30-16
  4. Good buyer, prompt payment, valued customer, highly recommended. 10-04-16
  5. On time. As described. Happy customer!! 09-15-16

General signalprocessorgo:

  • Musical Instruments Gear > pro Audio Equipment > signal Processors
  • in stock: Yes
  • condition: Used

Returns signalprocessorgo:

  • policy: no returns

Shipping signalprocessorgo:

  • handling: 2 days
  • cost: $0.0
  • type: Flat

Offer signalprocessorgo:

  • bids: 0
  • Started: April 16, 2017, 8:19 pm
  • Sold: 0
  • quantity: 1
  • best offer: true

Seller signalprocessorgo:

  • city: Elmwood Park, Illinois
  • zipcode: 60707
type: equalizer, effect/enhancement: parametric equalization, form factor: modular, country/region of manufacture: united states,
category: musical instruments > pro audio equipment > signal processors, sku: 1437485168278252,
Review#1 Prompt payment, valued customer, highly recommended! - Sellular Deals ()
Review#2 Hope to deal with you again. Thank you. ()
Review#3 Good buyer, prompt payment, valued customer, highly recommended. ()
Review#4 Good buyer, prompt payment, valued customer, highly recommended. ()
Review#5 On time. As described. Happy customer!! ()
Api Audio 550A-1 Is Similar To:
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  • (31.8% similar) This eq originally had an internal power supply, accessed by the rear cable. This includes all packing materials, accessories, manuals and related documentation. Thus preventing any possible rack rash or scratches. Direct signature on packages is an option. Un packaged dimensions: 19 x it does not ...(September 14th, 2018)
  • (55.4% similar) Smoke free environment, private use, original owner and commissioned by us with Api. We requested a version of the 550 but with 6 db max gain cut in 1DB increments more suited for stem mixing 12DB was overkill stereo stems our opinion and console needs so here is one matched pair, commissioned 3 ...(March 3rd, 2017)
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5 offers $1365.00–$1495.00 USD
  • Used. Offer #1 priced at $1495.00 + $70.00 shipping estimate = $1565.00* total. I ship worldwide This Vintage API is in great shape.+$70.00 shipping
  • Used. Offer #2 priced at $1365.00 + $70.00 shipping estimate = $1435.00* total. - use of ICs in the circuit. For those not used to, the is a very similar unit to the 550A with a few differences All bands and filter work fine and overall the unit sounds great.+$70.00 shipping
  • Used. Offer #3 priced at $1495.00 + $70.00 shipping estimate = $1565.00* total. This is the unit number 3.+$70.00 shipping
  • Used. Offer #4 priced at $2899.99 + $75.00 shipping estimate = $2974.99* total. Comes with Factory OP Amps installed also. Up for sale is a Mint condition, see pics, API 5500 EQ in the original box with $700.00 in extras.+$75.00 shipping
  • Used. Offer #5 priced at $1365.00 + $70.00 shipping estimate = $1435.00* total. This is the unit 5.+$70.00 shipping

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