FEDERAL AM-447A-G Compressor Limiter Amplifier Tube 50S

( Brand: Federal ), ( Model: AM-447 ), ( Type: Compressor Limiter Amplifier ), ( Effect/enhancement: Compression/limiting ), ( Number Of Channels: 1 ), ( Form Factor: Rack-mountable ), ( Country/region Of Manufacture: United States ), ( Features: Vacuum Tube ), ( Inputs/outputs: 6.35mm )

Review FEDERAL 447a Compressor Limiter Amplifier Vintage 50s Tube 447

The AM-447A-G Federal 447A Compressor Limiter Amplifier is a vintage piece of audio equipment that harks back to the golden era of tube technology in the 1950s. This unit features the highly sought-after 447A tube, a dual triode that was widely used in audio applications due to its excellent frequency response and high power handling capability.

The AM-447A-G is a compressor-limiter amplifier, which means it can both compress and limit the dynamic range of an audio signal. Compression reduces the dynamic range by attenuating the loudest parts of the signal, while limiting prevents the signal from exceeding a certain level. This makes the AM-447A-G an invaluable tool for audio engineers and musicians looking to achieve a more balanced and controlled sound.

The unit is housed in a sturdy aluminum chassis, complete with a vintage-style control panel that includes knobs for gain, attack, release, threshold, and ratio. The front panel also features a VU meter for visual feedback of the audio level. The AM-447A-G is fully adjustable, allowing you to tailor the compression and limiting settings to your specific needs.

Inside, the AM-447A-G is a testament to the craftsmanship and engineering skills of the past. The circuitry is meticulously designed and hand-wired, with high-quality components and point-to-point wiring. The 447A tube is positioned in its own socket, ensuring proper alignment and long tube life.

The AM-447A-G Federal 447A Compressor Limiter Amplifier is not just a piece of vintage audio equipment; it's a time machine that transports you back to the era of warm, rich, and full-bodied audio. Whether you're a professional audio engineer, a musician, or an audio enthusiast, the AM-447A-G is a must-have for anyone who appreciates the sound of classic tube technology.

1. Authentic Tube Amplifier: This is a vintage 50s tube amplifier, which adds a unique sound quality to your audio setup.

2. Compressor Function: The compressor feature helps in maintaining a consistent volume level, making your audio less dynamic and more even.

3. Limiter Function: The limiter function prevents the audio from exceeding a certain level, protecting your speakers and providing a clean sound.

4. Vintage Aesthetic: The vintage design of this amplifier can add a classic touch to your audio setup, making it a great conversation piece.

1. Maintenance and Repair: Vintage tube amplifiers require regular maintenance and can be expensive to repair if something goes wrong.

2. Power Consumption: Tube amplifiers consume more power than solid-state amplifiers, which can increase your electricity bill.

3. Limited Connectivity: This amplifier may not have modern connectivity options, limiting the devices you can connect to it.

The AM-447A-G Federal 447A Compressor Limiter Amplifier is a great addition to any vintage audio setup. It offers a unique sound quality and additional features that can enhance your audio experience. However, its maintenance requirements, power consumption, and limited connectivity options should be considered before making a purchase. If you are willing to invest in regular maintenance and understand the limitations of a tube amplifier, this vintage piece can be a rewarding addition to your collection.

If you're looking for a vintage compressor limiter amplifier, the AM-447A-G Federal 447A is a good choice. However, make sure to research and understand the maintenance requirements and limitations before making a purchase. If you're not ready to invest in a vintage tube amplifier, there are modern alternatives that offer similar features for a lower cost and less maintenance.

Details:

Also, someone added a speaker output transformer on the back. You can see from the construction, it uses heavy duty oil caps, etc. Federal AM-447acompressor limiter amplifier vintage 50s tube b heres a cool old for restoration. These are actually fairly full range frequency compressors, and as I recall, were good on bass.

Shipping is 40 in Canada, 65 to the us. This is for restoration, customization, basis project or parts. It kind of looks like lava or asphalt from a certain angle. The mole connector on back is missing, but all functions of it are actually available in and outs front panel.

This one has acquired an odd paint job on the front panel along its journey. Uses 6sk7, 6au6, 6h6 and 6v6 tubes, all included. The transformers are rated for voice frequency, but these at 36db with 47ma of unbalanced b, in actually, their response extends well beyond range. Theres no bottom plate on this unit.

This Hans't been turned on for many years, but it did pass audio when was last used. Sold as is, all transformers good. And 145 to Europe or Asia.

part #: am447 prices

• $3350.00-$3750.00

specifications signalprocessorgo:

• brand: Federal
• model: Am-447
• type: Compressor Limiter Amplifier
• effect/enhancement: Compression/limiting
• number of channels: 1
• form factor: Rack-mountable
• country/region of manufacture: United States
• features: Vacuum Tube
• inputs/outputs: 6.35mm

Returns signalprocessorgo:

• policy: no returns

Offer signalprocessorgo:

• Sold: 0
• Started: April 30, 2018, 10:33 pm
• best offer: true
• quantity: 1
• bids: 0

Shipping signalprocessorgo:

• handling: 3 days
• type: Flat
• cost: $50.7

Seller signalprocessorgo:

• city: Trenton, Ontario
• zipcode: K8V 3W1

Ratings:

1. ReibungsloseSehr angenehmer Gesch ftspartner. 04-28-18
2. Good buyer, prompt payment, valued customer, highly recommended. 04-23-18
3. Hope to deal with you again. Thank you. 04-29-18

General signalprocessorgo:

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

Payments signalprocessorgo:

• PayPal

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