Used dbx Instruments
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About dbx
dbx is a United States-based manufacturer founded in 1971. We track 2 dbx instruments across the used market. Browse current dbx listings from Reverb, eBay, and other marketplaces to search and find the best deals.
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Buying Used dbx: Practical Guide
When buying used dbx instruments, focus on the model and year of production. Many buyers overlook the importance of serial numbers and production runs. You’ll want to inspect the condition meticulously. Look for wear on the knobs and connectors. If the unit has been excessively used, you might face issues down the road. Models like the dbx 166A range from $150 to $400, while higher-end models can even fetch $600. Be wary of models priced below $100; they often indicate significant wear or malfunction. Also, original parts matter. If there are non-original components, this could lower value. If
dbx Production Eras
Classic Era
1971-1985This era saw dbx establish quality standards in compression and noise reduction. Units from this time often feature robust, reliable components that have stood the test of time.
Best value
Digital Transition Era
1990-2000During this period, dbx introduced digital signal processing. These units often include features lacking in the analog models, creating a blend of value and newfound functionality.
Collectible — price accordingly
Dating dbx Instruments by Serial Number
To date dbx instruments, locate the serial number, which is usually on the back panel or inside the battery compartment. A dbx serial number typically comprises letters followed by numbers, with the first two digits representing the year of production. For example, '85XXXX' indicates a production year of 1985. To verify the date, compare the serial number with known examples or checking dbx's or a
Verifying Authenticity
- Inspect the original components. Non-original knobs or switches can indicate a tampered instrument.
- Check for refinishes. An original dbx finish holds value; a refinish generally lowers it.
- Look for factory specs. Modifications can lead to a depreciation in resale value, especially if they deviate significantly from original specs.
- Examine for wear on connectors. New connectors may suggest heavy prior use; ensure they’re not a red flag for internal component wear.
Known Issues to Check
- Check for noise floor problems in older units. Some dbx models develop hiss over time due to aging components.
- Compression artifacts can appear in some early models. Listen carefully to ensure these effects match the described performance.
- Watch for faulty LEDs. LED indications sometimes don't function reliably, affecting performance.
- Inspect for loose internal connections. A common issue in floor models can lead to intermittent performance.
dbx Instruments
Audio Interfaces
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Search dbxFrequently Asked Questions
What should I check first when buying a used dbx instrument?
Always inspect the condition of knobs, connectors, and the overall unit for signs of excessive wear.
Are there specific models I should prioritize?
Yes, the dbx 166A and 320 are known for their reliability and value in the used market.
How can I verify if a dbx unit has been modified?
Look for parts that don’t match original specifications, and check the included manual or specs online.
Is it common for older dbx instruments to have issues?
Yes, older models can develop noise floor problems and aging components that affect performance.
How much should I pay for a decent used dbx?
Most reasonable used dbx instruments range from $150 to $600 depending on the model and condition.