
EQA-111 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $14.00 | Condition is Good, Jensen EQA111 Original Service Manual Free Shipping, FREE SHIPPING | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $19.98 | Condition is Unspecified, Jensen eqa111 service manual original repair book stereo graphic eq, FREE SHIPPING | 100.0% |

The Jensen EQA-111 Equalizer is a high-performance, versatile audio equipment designed for use in professional recording studios, live sound applications, and other audio production environments. This equalizer, part of the Jensen EQA series, is a 3-band, passive, continuously variable, Constant-Q equalizer, delivering a frequency response range of 50 Hz to 16 kHz.
The EQA-111 is equipped with three independent channels, each featuring a low-frequency band, a mid-frequency band, and a high-frequency band. The low-frequency band covers the range from 50 Hz to 500 Hz, with a variable boost and cut of up to 12 dB. The mid-frequency band covers the range from 500 Hz to 2.5 kHz, offering a variable boost and cut of up to 15 dB. The high-frequency band covers the range from 2.5 kHz to 16 kHz, with a variable boost and cut of up to 12 dB.
One of the standout features of the Jensen EQA-111 Equalizer is its Constant-Q design. This means that the center frequencies of the bands are not fixed but rather vary as a function of the selected bandwidth or Q. This results in a more natural and musical equalization response, especially in the mid-range frequencies where it is most critical.
The EQA-111 is a 1RU (rack unit) device, making it easy to integrate into any standard rack mount system. It is also compatible with both balanced and unbalanced input and output connections, with transformer isolation on the input side for added protection against signal interference and line voltage surges.
The Jensen EQA-111 Equalizer is designed and manufactured in the USA, with a rugged steel chassis and high-quality components to ensure reliable and consistent performance. It is also power-efficient, drawing only 80 watts at maximum load.
In summary, the Jensen EQA-111 Equalizer is a powerful, versatile, and high-performance equalizer that offers a natural and musical equalization response with its Constant-Q design. It is suitable for use in professional recording studios, live sound applications, and other audio production environments, and is characterized by its rugged build, compatibility with both balanced and unbalanced connections, and low power consumption.
The Jensen EQA-111 is a vintage-style equalizer that is popular among guitarists and audio engineers for its unique sound and versatility. Here are some pros and cons of buying this equalizer:
Pros:1. Authentic Sound: The Jensen EQA-111 provides a warm and musical sound that is not found in modern equalizers. Its design is based on the classic British consoles from the 1960s and 1970s.
2. Versatile: The equalizer offers 8 bands of equalization, each with a wide frequency range. This makes it suitable for various applications, including guitar amplifiers, mixing consoles, and recording studios.
3. Build Quality: The Jensen EQA-111 is built with high-quality components and has a solid construction. It is designed to withstand heavy use and is known for its durability.
4. Easy to Use: The equalizer has simple and intuitive controls, making it easy to use for both beginners and experienced users.
5. Affordable: Compared to other vintage equalizers, the Jensen EQA-111 is relatively affordable, making it an excellent investment for those on a budget.
Cons:1. Lack of Precision: The Jensen EQA-111 is not designed for precise equalization. Its wide frequency bands and subtle boost and cut controls make it more suitable for adding warmth and character to a sound rather than making drastic adjustments.
2. Limited Frequency Range: The equalizer does not offer a wide frequency range below 100 Hz or above 16 kHz. This may limit its use for certain applications, such as bass or high-frequency equalization.
3. Power Consumption: The Jensen EQA-111 consumes 80 watts of power, which may be a concern for those with limited power supplies or high electricity bills.
Conclusion:The Jensen EQA-111 is a versatile and high-quality equalizer that offers a unique and musical sound. Its build quality, easy-to-use controls, and wide frequency bands make it a popular choice among guitarists and audio engineers. However, its lack of precision and limited frequency range may make it less suitable for certain applications. Additionally, its high power consumption may be a concern for some users. Overall, the Jensen EQA-111 is an excellent investment for those looking for a vintage-style equalizer with a warm and musical sound.
Recommendation:If you are looking for a vintage-style equalizer with a warm and musical sound, the Jensen EQA-111 is an excellent choice. Its versatility and durability make it a valuable addition to any guitar rig or recording studio. However, if you require precise equalization or a wider frequency range, you may want to consider other options. Additionally, if power consumption is a concern, you may want to consider a more energy-efficient equalizer.
Details:
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specifications vintamanual:
- brand: Jensen
- mpn: Eqa-111
- part type: Equalizer
shipping vintamanual:
- transit: 4-9 days
- carrier: usps
- service: usps ground advantage
- class: standard
- type: calculated
general vintamanual:
- category: Electronics > Audio Video > Parts Accessories > Vintage Manuals
offer vintamanual:
- started: july 27, 2025
- best offers: true
- sold #: 16
- availability: in stock
- options: ship-to-home
- in stock #: 2
- prices: $14.00–$19.98
- item condition:
- Good
- Unspecified
payments vintamanual:
- credit card: visa
- other
- wallet: paypal
returns vintamanual:
- policy: no returns
seller vintamanual:
- city: belle fourche, south dakota
- rating: 98.8%
- # reviews: 271

