For sale: A pre-main amplifier developed using Yamaha circuit technology such as the ZDR circuit.
Equipped with Yamaha's original ZDR (0 distortion rule) circuit.
This circuit consists of two circuits, a distortion detection circuit and an addition circuit. At the final stage, only the distortion component is taken out by the bridge configuration and returned to the input side to suppress the generation of distortion. In distortion reduction technologies such as NFB, only the mixed music signal component is fed back, while in ZDR, only the distortion component is fed back, and in principle, the effect of suppressing only the distortion is obtained. In addition, the distortion caused by counter electromotive current generated during speaker driving is also reduced to 0 in real time.
''Please ask us for a shipping quote for the best shipping rates before making apurchase. Shown costs are estimated and might be incorrect. We can offer better services with different shippers by choice''
Cosmetic Condition: As good as new
Working Condition: fully working
Dimensions L 43 x W 30 x H 10 cm
Weight: 10,20 Kg
Volts: v220 - 380 Watts (If it’s 200V or higher, you’ll need an adapter in the USA)
Specs:
| Type |
Pre-main amplifier |
| Rated output |
70W + 70W (20 Hz ~ 20 kHz, 8 Ω, 0.007% distortion) |
| Frequency characteristic |
20 Hz ~ 20 kHz -0.2 dB (Phono MM → Rec out) |
| RIAA deviation |
+ / - 0.2 dB (MM)
+ / - 0.3 dB (MC) |
| Total harmonic distortion rate (20 Hz to 20 kHz) |
MM:0.003%
MC:0.005% |
| Signal-to-noise ratio (IHF-A network) |
MM:86dB
MC:69dB |
| Power bandwidth |
10 Hz to 50 kHz (8 Ω, 35W) |
| Input sensitivity |
MM:2.5mV
MC : 160 μ V |
| Maximum allowable input |
MM:150mV
MC:10mV |
| Tone control |
Bass : ± 10 dB (350 Hz)
Treble : ± 10 dB (3.5 kHz) |
| Accessory circuit |
Audio Muting
Subsonic filter
Continuous loudness
Rec Out Selector |
| Pwer |
100 VAC, 50Hz/60Hz |
| Rated power consumption |
130W |
| External dimensions |
Width 435x Height 112x Depth 327 mm |
| Weight |
7.3kg |
We ship worldwide.
For international shipping, import fee's apply. These vary per country, and are for the buyer to pay.
-Shipping in the EU up to 30 KG (max)
-Shipping outside of the EU up to 20 KG (max) Shown costs might vary. Please ask us for a shipping quote for the best rates!
-We kindly ask you to reach out for the best shiping rates. As rates vary per shipper, we can ask custom shipping quotes.
Please note: ‘’Whenever an item exceeds the weight noted above. Please ask for a shipping quote before making a purchase. The shipping costs are estimated in our shop because we do not know the shipping address.
Picking up the item is also possible. It can be picked up in Alkmaar
Delivery by us is also possible in some cases. Please reach out to us for more information about deliveries
State of listing: If a listing is listed ''for parts or not working'' returns are not accepted.
When we offer our products with the notice ''Serviced'' or ''Fully serviced'' that means the device is either ''serviced'' with a new belt, and cleaned the pots, Or ''Fully serviced'' recapped, Quiescent current adjusted etc as expected from a full service
