81549 München
Germany
The seller is responsible for this advert and its content.
Audio Research REFERENCE 250
Product information
- Product category
- Tube-Poweramp
- Manufacturer
- Audio Research
- Function
- flawless
- Age
- 8 years According to distributor
- Usage state
- second-hand
- Appearance
- as good as new
- Accessories
- complete with original box
- Color
- Schwarz
- Original price
- 27,000.00 €
- Price
- 10,500.00 €
- More information
- http://www.audioresearch.com
- Serial number
- xxx07+ 008
Description
Angeboten werden 2 AUDIO RESEARCH REFERENCE 250 Mono Endstufen.
1. Hand, Historie Nachweisbar.
Tier und rauchfrei
Röhren alter: 440 + 549 Stunden (Unterschied, da eine Seite vergessen wurde auszuschalten)
Laut Hersteller entfaltet sich der Klang an 600 Stunden Einspielzeit!
Röhren Haltbarkeit mühelos 2200 Std.
Zustand:
Technisch einwandfrei.
Optisch: ein Display ist etwas dunkler beleuchtet.
2mm Lackabplatzer an der Rückseite einer Endstufe.
Verkauf unter Ausschluss jeglicher Garantie oder Gewährleistung.
Passende Geräte Basen in Hochglanz schwarz, Dreipunkt gelagert auf Keramik Lagern werden zusätzlich für 800€ Paar angeboten.
Technische Daten (Herstellerangaben):
Reference 250 Specifications:
POWER OUTPUT
250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 270 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e. if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)
POWER BANDWIDTH
(-3dB points) 5Hz to 70kHz.
FREQUENCY RESPONSE
(-3dB points at 1 watt) 0.5Hz to 110 kHz.
INPUT SENSITIVITY
2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.)
INPUT IMPEDANCE
200K ohms Balanced.
OUTPUT TAPS
4, 8, 16 ohms.
OUTPUT REGULATION
Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10).
OVERALL NEGATIVE FEEDBACK
8.8dB.
LEW RATE
20 volts/microsecond.
RISE TIME
1.5 microseconds.
HUM & NOISE
Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output).
POWER SUPPLY ENERGY STORAGE
Approximately 900 joules.
POWER REQUIREMENTS
105-130VAC 60Hz (260-250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at “idle,” 1 watt off.
1. Hand, Historie Nachweisbar.
Tier und rauchfrei
Röhren alter: 440 + 549 Stunden (Unterschied, da eine Seite vergessen wurde auszuschalten)
Laut Hersteller entfaltet sich der Klang an 600 Stunden Einspielzeit!
Röhren Haltbarkeit mühelos 2200 Std.
Zustand:
Technisch einwandfrei.
Optisch: ein Display ist etwas dunkler beleuchtet.
2mm Lackabplatzer an der Rückseite einer Endstufe.
Verkauf unter Ausschluss jeglicher Garantie oder Gewährleistung.
Passende Geräte Basen in Hochglanz schwarz, Dreipunkt gelagert auf Keramik Lagern werden zusätzlich für 800€ Paar angeboten.
Technische Daten (Herstellerangaben):
Reference 250 Specifications:
POWER OUTPUT
250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 270 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e. if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)
POWER BANDWIDTH
(-3dB points) 5Hz to 70kHz.
FREQUENCY RESPONSE
(-3dB points at 1 watt) 0.5Hz to 110 kHz.
INPUT SENSITIVITY
2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.)
INPUT IMPEDANCE
200K ohms Balanced.
OUTPUT TAPS
4, 8, 16 ohms.
OUTPUT REGULATION
Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10).
OVERALL NEGATIVE FEEDBACK
8.8dB.
LEW RATE
20 volts/microsecond.
RISE TIME
1.5 microseconds.
HUM & NOISE
Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output).
POWER SUPPLY ENERGY STORAGE
Approximately 900 joules.
POWER REQUIREMENTS
105-130VAC 60Hz (260-250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at “idle,” 1 watt off.
Seller:
- Shipping from Germany (81549)
- Purchaser pays shipping costs
- No international shipping
Payment methods
- Cash upon collection
- Bank transfer
- PayPal
- Prepayment (bank transfer)
Advert ID
3482497938
Advert time period- Start:
- 02.05.2024 - 10:11
- End:
- 01.07.2024 - 10:11
83 times in 3 day(s)
