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# Fair Market Price Estimate: Graham Slee Solo Ultra Linear Diamond Edition
Based on available market data, the estimated fair AUD price range for the Graham Slee Solo Ultra Linear Diamond Edition headphone amplifier is approximately $1,800–$2,100 AUD, with variations depending on condition and market location.
## Price by Condition
| Condition | Estimated AUD Price |
|-----------|-------------------|
| New | $2,000–$2,100 |
| Like New/Excellent | $1,800–$2,000 |
| Used | $1,500–$1,800 |
## Supporting Data
A recent secondhand listing in Canberra offered the Diamond Edition at $350 AUD, though this appears to be an outlier significantly below market value and may indicate a clearance or special circumstance sale. More representative pricing comes from current retail sources: Singapore retailer Jaben lists the Graham Slee Solo Ultra Linear at $1,438 SGD (approximately $1,330–$1,380 AUD at current exchange rates), while a 2013 review noted the Diamond Edition at $1,199 USD (approximately $1,850–$1,900 AUD historically).
## Key Value Factors
- Edition variant: The Diamond Edition commands a premium over the standard Ultra Linear due to its redesigned output stage and improved noise performance
- Condition: New or mint condition units retain higher value; used units typically depreciate 10–20% from retail
- Geographic market: Australian retailers may price higher than international sources due to import costs and local market positioning
- Availability: Limited supply in secondary markets may support prices at the higher end of the range
This estimate assumes the amplifier is in working condition with original packaging and documentation intact. Prices may vary based on local demand and individual seller circumstances.
English (US)