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Sansui AU-D7 Integrated Amplifier (Closed)
Hi-Fi 4 Sale - Malaysia / Singapore Audio Forum & Marketplace | www.hifi4sale.net :: Audio & Video Equipment Marketplace :: Audio & Video Equipment: FOR SALE (Pre-owned & Used)
Page 1 of 1
Sansui AU-D7 Integrated Amplifier (Closed)
by rasenthiran Fri Mar 20, 2015 1:28 am
Sansui AU-D7 Linear A DC/DD Integrated Amplifier
Specifications :
Power output: 80 watts per channel into 8? (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.02%
Damping factor: 200
Input sensitivity: 0.25mV (MC), 2.5mV (MM), 200mV (line)
Signal to noise ratio: 67dB (MC), 86dB (MM), 110dB (line)
Channel separation: 55dB (MM), 90dB (line)
Output: 200mV (line)
Speaker load impedance: 8? (minimum)
Dimensions: 430 x 148 x 328mm
Weight: 11.3kg
Condition 5/10
*Please take note the loudness button is broken due to age. The amplifier is working fine but was on storage pass 8 months,there will be no warranty,only functional test*
Price : RM450 Firm
Raj-0126657671
Description :
Linear-A refers to the particular design used in the AU-D7 (and AU-D5 models). Since Class A amplifier designs tend to be inefficient because their transistors are always on, it eats up a lot of power whereas Class B designed transistors do switch on & off but in doing so, while they do save power and minimize heat gain, give rise to large amounts of switching & crossover distortion.
Thus, Linear-A was Sansui's design used in these models which combines the advantages of class A & B, but without their disadvantages.
The DD/DC stands for Diamond Differential/Direct Coupled. Supposedly, the "Diamond" terminology comes from the idea that when the circuit is drawn out on paper, it resembles the shape of a diamond. The DC refers to not using coupling capacitors in the signal path from the power amp section to the speakers, for what is theoretically claimed to then offer purer audio sound quality. If ALL coupling capacitors are eliminated, the DC is then said to be a reference to the terminology known as 'direct current' amplifier and the amp can uniformly amplify down to DC (O hz frequency)
Specifications :
Power output: 80 watts per channel into 8? (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.02%
Damping factor: 200
Input sensitivity: 0.25mV (MC), 2.5mV (MM), 200mV (line)
Signal to noise ratio: 67dB (MC), 86dB (MM), 110dB (line)
Channel separation: 55dB (MM), 90dB (line)
Output: 200mV (line)
Speaker load impedance: 8? (minimum)
Dimensions: 430 x 148 x 328mm
Weight: 11.3kg
Condition 5/10
*Please take note the loudness button is broken due to age. The amplifier is working fine but was on storage pass 8 months,there will be no warranty,only functional test*
Price : RM450 Firm
Raj-0126657671
Description :
Linear-A refers to the particular design used in the AU-D7 (and AU-D5 models). Since Class A amplifier designs tend to be inefficient because their transistors are always on, it eats up a lot of power whereas Class B designed transistors do switch on & off but in doing so, while they do save power and minimize heat gain, give rise to large amounts of switching & crossover distortion.
Thus, Linear-A was Sansui's design used in these models which combines the advantages of class A & B, but without their disadvantages.
The DD/DC stands for Diamond Differential/Direct Coupled. Supposedly, the "Diamond" terminology comes from the idea that when the circuit is drawn out on paper, it resembles the shape of a diamond. The DC refers to not using coupling capacitors in the signal path from the power amp section to the speakers, for what is theoretically claimed to then offer purer audio sound quality. If ALL coupling capacitors are eliminated, the DC is then said to be a reference to the terminology known as 'direct current' amplifier and the amp can uniformly amplify down to DC (O hz frequency)
Last edited by rasenthiran on Mon Jan 18, 2016 6:04 pm; edited 9 times in total
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
rasenthiran- Frequent Contributor
- Number of posts : 2528
Age : 43
Location : petaling jaya
Registration date : 2009-03-04
Character sheet
Source(s): Parasound Zdac/Marantz Cd 63 KI/Sony X505ES/
Amplification: Exposure Super 10/Classe DR-6/Sony TA N90ES/Sansui AU 777 /AU-719/Yamaha RXV-863 Receiver
Speakers: NHT Classic/Monitor Audio Studio 2/Heybrook HB 1
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