LaChapell Audio Model 503

500 Series 3-band EQ Module with Transformerless Input/Output
Write review Item ID: 503
LaChapell Audio Model 503 image 1
LaChapell Audio Model 503 image 1
Sweetwater Savings: $45.00 MSRP: $895.00
Special Order
Special-ordered from LaChapell Audio and usually arrives to you within 1-2 weeks. Please note: special orders cannot be canceled or returned.
Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.

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LaChapell Audio Model 503
Special Order

No-compromise 500 Series EQ!

The LaChapell Audio Model 503 EQ module is an ultra-clean 3-band EQ packed into a convenient 500 Series format. Each band of the Model 503's completely transformerless EQ features a fixed Q with very low phase deviation, offering you completely transparent control over your sound. The EQ also sports a fully sweeping frequency control and a cut/boost range of +/-12dB. This module gives puts the controls you need right at your fingertips, and its uncluttered design makes the Model 503 perfect for your setup - and ideal for your workflow.

LaChapell Audio Model 503 500 Series EQ Module at a Glance:
  • Transparent performance
  • Impressive frequency control and cut/boost
  • 500 Series format

Transparent performance
When you want to shape your sound without adding color, then you need the right tools for the job. That's LaChapell's Model 503. This module's low distortion signature and minimal phase deviation give it incredibly clear, clean, and transparent performance, so you get maximum control over your signal.

Impressive frequency control and cut/boost
LaChapell designed the Model 503 to put control right where you need it. The low, mid, and high controls are incredibly intuitive to use, and the Model 503's +/-12dB of cut/boost makes it very flexible. You also get a highpass filter at 50Hz and 150Hz plus a lowpass filter at 5kHz and 10kHz.

500 Series format
The Model 503 packs a pro-quality, ultra-transparent EQ into a very convenient 500 Series module format, so you can easily put top-grade performance into your 500 Series rack. The controls are perfectly placed on the uncluttered panel, so you'll shape your sounds with maxiumum efficiency. Put the Model 503 into your rig and take control!

LaChapell Audio Model 503 500 Series EQ Module Features:
  • Ultra-clear and phase-coherent transformerless 3-band EQ
  • Input resistance: 40 Kohms
  • Output resistance: 50 Kohms
  • Bands: Low: 30Hz-40Hz; Mid: 325Hz-5kHz; High: 2.5kHz-20kHz
  • Cut/boost: +/-12dB
  • +/- 6dB overall trim gain stage
  • Highpass filter at 50Hz and 150Hz
  • Lowpass filter at 5kHz and 10kHz
The LaChapell Audio Model 503 EQ module puts incredible EQ control in your 500 Series rack!

What Does "Special Order" Mean?

A special-order product is one that we don't normally keep in stock. We order it from the manufacturer as soon as you order from us. We have great relationships with all the manufacturers we carry, so we can get your special order to you as fast as or faster than anyone else. Remember that special orders are non-returnable and non-cancelable, so make sure the item is right for you. A Sweetwater Sales Engineer can help you decide — call (800) 222-4700 for assistance!

Additional Media

500 Series Buying Guide

Tech Specs

Number of Channels 1
Number of Bands 3-band
High Pass Filter Yes
Low Pass Filter Yes
Bypass Yes
Q Type Fixed
Boost/Cut Range ±12
Frequency Response 10Hz-50kHz
Freq Range High 2.2kHz-20kHz
Freq Range Mid 320Hz-5kHz
Freq Range Low 30Hz-400Hz
Manufacturer Part Number 503

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See also: LaChapell Audio, LaChapell Audio 500 Series EQ