The seller is responsible for this advert and its content.
Audio Research Audio Research Reference 610 – Legendary 500W Valve Monoblock Pair with Flight Cases
Product information
- Product category
- Tube-Poweramp
- Manufacturer
- Audio Research
- Function
- Not specified
- Age
- 15 years 7 months According to invoice
- Usage state
- second-hand
- Appearance
- Not specified
- Accessories
- Not specified
- Price
- 8,500.00 €
- More information
- http://www.audioresearch.com
Description
A rare opportunity to acquire a matched pair of Audio Research Reference 610 monoblock valve power amplifiers—one of the largest and most ambitious statement amplifier designs ever produced by Audio Research.
The Reference 610 was created without compromise for the most demanding high-end systems. Each enormous monoblock delivers 500 watts continuously, with typical available output of approximately 550 watts and up to around 600 watts under ideal operating conditions.
Despite their immense power and authority, these amplifiers retain the openness, dimensionality, tonal richness and musical refinement for which Audio Research’s finest valve designs are renowned. They are capable of controlling extremely demanding loudspeakers while preserving delicacy, transparency and spatial information.
Each amplifier employs sixteen 6550C output valves, with additional 6550C regulation valves and separate driver, input and regulator stages. The front-panel metering system allows the operation and bias of the individual output valves to be monitored and adjusted.
Highlights:
• Genuine Audio Research Reference 610 monoblocks
• Sold strictly as a stereo pair
• 500 watts continuous output per monoblock
• Approximately 550 watts typical maximum output
• Up to approximately 600 watts under ideal conditions
• Fully balanced input architecture
• Individual output-valve testing and bias adjustment
• Adjustable cooling-fan speed
• Front-panel line-voltage and operating-status metering
• Silver front panels with substantial black handles
• Approximately 77 kg net weight per amplifier
• Professional wheeled flight case supplied for each monoblock
Technical specifications:
Power output: 500 watts continuous into 16 ohms, 20 Hz–20 kHz
Power bandwidth: 12 Hz–80 kHz
Frequency response: 2 Hz–200 kHz at 1 watt
Input sensitivity: 2.0 V RMS balanced
Input impedance: 200 kΩ balanced
Dimensions per amplifier: approximately 48.3 × 26.7 × 74.9 cm
Net weight per amplifier: approximately 77.2 kg
The pair presents very impressively, with clean brushed-aluminium front panels, original Audio Research controls and the extensive valve complements shown in the photographs. Minor signs of age or previous use should be expected and are visible in the detailed images.
Both amplifiers are supplied with the pictured heavy-duty professional wheeled flight cases. These are particularly important given the exceptional size, weight and value of the equipment.
Because the amplifiers weigh approximately 154 kg combined before their transport cases, ordinary parcel delivery is not appropriate. Collection is strongly preferred. Specialist palletised or dedicated freight transportation may be arranged at the buyer’s expense and risk.
Inspection and demonstration can be arranged by prior appointment. Serious enquiries are welcome.
The amplifiers will not be separated.
The Reference 610 was created without compromise for the most demanding high-end systems. Each enormous monoblock delivers 500 watts continuously, with typical available output of approximately 550 watts and up to around 600 watts under ideal operating conditions.
Despite their immense power and authority, these amplifiers retain the openness, dimensionality, tonal richness and musical refinement for which Audio Research’s finest valve designs are renowned. They are capable of controlling extremely demanding loudspeakers while preserving delicacy, transparency and spatial information.
Each amplifier employs sixteen 6550C output valves, with additional 6550C regulation valves and separate driver, input and regulator stages. The front-panel metering system allows the operation and bias of the individual output valves to be monitored and adjusted.
Highlights:
• Genuine Audio Research Reference 610 monoblocks
• Sold strictly as a stereo pair
• 500 watts continuous output per monoblock
• Approximately 550 watts typical maximum output
• Up to approximately 600 watts under ideal conditions
• Fully balanced input architecture
• Individual output-valve testing and bias adjustment
• Adjustable cooling-fan speed
• Front-panel line-voltage and operating-status metering
• Silver front panels with substantial black handles
• Approximately 77 kg net weight per amplifier
• Professional wheeled flight case supplied for each monoblock
Technical specifications:
Power output: 500 watts continuous into 16 ohms, 20 Hz–20 kHz
Power bandwidth: 12 Hz–80 kHz
Frequency response: 2 Hz–200 kHz at 1 watt
Input sensitivity: 2.0 V RMS balanced
Input impedance: 200 kΩ balanced
Dimensions per amplifier: approximately 48.3 × 26.7 × 74.9 cm
Net weight per amplifier: approximately 77.2 kg
The pair presents very impressively, with clean brushed-aluminium front panels, original Audio Research controls and the extensive valve complements shown in the photographs. Minor signs of age or previous use should be expected and are visible in the detailed images.
Both amplifiers are supplied with the pictured heavy-duty professional wheeled flight cases. These are particularly important given the exceptional size, weight and value of the equipment.
Because the amplifiers weigh approximately 154 kg combined before their transport cases, ordinary parcel delivery is not appropriate. Collection is strongly preferred. Specialist palletised or dedicated freight transportation may be arranged at the buyer’s expense and risk.
Inspection and demonstration can be arranged by prior appointment. Serious enquiries are welcome.
The amplifiers will not be separated.
Seller:
- Shipping from Germany (W1K 4HF)
- Purchaser pays shipping costs
- Worldwide shipping
Payment methods
- Bank transfer
- Cash on delivery
- See description
- Prepayment (bank transfer)
Advert ID
2778307836
Advert time period- Start:
- 26.07.2026 - 20:22
- End:
- 24.09.2026 - 20:22
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