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API Audio 550A 50th anniversary

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Discontinued, this product can no longer be ordered.

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API Audio 550A Discrete 3-band EQ in Lunch Box Format

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API Audio 550A 50th anniversary
Product no: 9000-0049-5879 Bax Music Warranty: This product comes with a 3-year warranty.

General

API Audio's anniversaries are traditionally celebrated with special edition releases of their most renowned studio units. The 550A 50th Anniversary is a superior 3-band equalizer with the famed proportional Q on-board, meaning the band becomes less wide the more you cut or boost. The HF and the LF bands can be switched from bell to shelf, while bandpass slightly rounds off the frequency spectrum below 50 Hz and above 15 kHz. Just like all other API units, the 550A is known for its punchy character, delivered by its 2520 OP-Amp. Be quick if you want to claim one for yourself, only 50 units were produced of this limited edition EQ.

Specifications

Product features

Number of 500 series units	1
Mono or stereo	mono
Module type	equalizer
Equipped with tube	no

Weight and dimensions including packaging

Weight (incl. packaging)	2,0 kg
Dimensions (incl. packaging)	27,0 x 19,6 x 12,1 cm

Product specifications

API Audio 550A 50th anniversary
3-band equalizer
API-500 format
uses API 2520 Op-Amp
input impedance: 66 kOhms (high level in), 17 kOhms (low level in)
output impedance: <85 Ohms (transformer isolated)
nominal operating level: -15dBm to +12dBm
insertion loss: none
frequency response without equalization: 30 Hz to 20 kHz
noise: without equalisation, output noise of -90 dBm (high level strapping), -98 dBm (low level strapping), 20 Hz to 20 kHz unweighed
distortion: 0.05% THD max, 30 Hz to 20 kHz @ +4 dBm, 0.07% THD, 30 Hz to 20 kHz @ +18 dBm
clipping levels (3% THD): + 30dBm
controls:
- LF double potmeter: 50, 100, 200, 300, 400 Hz at -12dB to +12dB
- MF double potmeter: 400, 800, 1500, 3000, 5000 Hz at -12dB to +12dB
- HF double potmeter: 5000, 7000, 10.000, 12.500, 15.000 Hz at -12dB to +12dB
- equalisation in increments of 2, 4, 6, 9 or 12 dB (boost and cut)
- toggle switch: 50 Hz to 15 kHz band pass filter (-3dB at 50 Hz and 15 kHz)
- push buttons: LF peak or shelving, HF peak or shelving, EQ in
Dimensions: 38.10 x 133.35 x 196.85 mm
weight: 910 g

Musikmesse 2016: New 500 Series Modules from DBX

Wednesday 6 April 2016 By Richard | Bax Music

DBX have a rich history when it comes to producing audio processors for studio use, particularly as part of a modular system. They're now expanding their range with the excellent new 500 series modules and racks including the 540, the 555, the 565, the 570, the 590, the PowerRack3 and the PowerBlock3.

API Audio Introduces Lunchbox Mic Preamp

Wednesday 24 August 2016 By Lizanne

API Audio have introduced their new lunchbox preamp modules at the high end of the audio market. These ultra-compact units come in handy in smaller recording spaces and (home)studios in particular, where space is limited. What's more, they're easy to mount in specially-designed racks that can hold them and provide them with power as well. With the 512v, API Audio launches a high-end mic/line/instrument preamp that houses the very best components and boasts a strictly discrete analogue signal.

IGS Audio - New Brand at Bax Music

Thursday 9 November 2017 By Lizanne

Here at Bax Music, we pride ourselves on a wide assortment of products for every budget. We're happy to announce we will be carrying eight products by IGS Audio, the latest high-end addition to our impressive list of brands!