tuktuk
發表於 2009-10-17 15:24
若果以10-15k有parsound a51,Rotel 5ch .,Arcam ,ADCOM 大把選擇
pinkhung 發表於 2009-10-17 15:16 http://www.post76.com/discuss/images/common/back.gif
10-15k可以買到parsound a51?
lemonstar
發表於 2009-10-17 16:02
本帖最後由 lemonstar 於 2009-10-17 16:04 編輯
Just checked on the website about the outlook and power rating,.. etc.
唔知街價要幾$呢 {:6_148:}
ADCOM (USA)
GFA-7605 and 7607
Multichannel Power Amplifier
•125 watts x (5) 7 channels into 8 ohms
•Power rig circuit topology
•Gold Plated 5 way binding posts
•Huge torriodial transformers
•Power bandwidth 10 Hz –100kHz
•12 volt trigger on circuit
•Dimensions 5 x 17 x 14 inches
•Unit weight: 42/48 lbs.
Arcam P777 (Germany):
P777 7 channels
7 x 150 watts per channel (8 ohms, 20Hz-20kHz, all channels driven)
• 7 x 230 watts per channel (4 ohms, 20Hz-20kHz, all channels driven)
• Peak output current +/- 30amps per channel
• Modular construction with seven independent and fully isolated channels
• Four Sanken heavy duty bi-polar output transistors per channel
• Advanced current feedback design with high slew rate and very low distortion at all audio frequencies
• Predominantly aluminium chassis and casework for best sound quality
• Comprehensive protection circuitry
o -DC offset protection
o -VI limiting on each output stage
o -Software controlled thermostatic fan
o -Over temperature protection
Inputs and Outputs
• Balanced (XLR) input connections
• Unbalanced (RCA) inputs with “loop through” output
• 12v Trigger (3.5mm mono jack) input for standby control
Rotel 1075
Model RMB-1075 Continuous Power Output
(20-20 kHz, <0.03%) 5x120 watts /ch / 8 ohms DIN Power Output
(1 kHz, 1%) 5x200 watts /ch / 4 ohms Total Harmonic Distortion
(20 Hz - 20 kHz, 8 ohms) 0.03% maximum cont. rated power
one-half rated power
one watt per channel
Intermodulation Distortion
(60 Hz: 7 kHz, 4:1) -
0.03%, maximum
0.03%, maximum
0.05%, maximum
0.03%, maximum Frequency Response 15Hz - 100kHz +0.5dB, -3dB Damping Factor
(20 - 20,000 Hz, 8 ohms) -
180 Signal to Noise Ratio (IHF A network) 116 dB Input Impedance/Sensitivity 1.0 V / 33 kOhms Power Requirements: 115 volts, 60 Hz (U.S. version)
230 Volts, 50 Hz (European version) Power Consumption: 800 Watts Dimensions (W x H x D): 430 x 188 x 385 mm
16.93" x 7.4" x 15.59" Weight (net): 17kg, 37.4 lbs.
Rotel 1565 (England)
Power Output
All channels driven 100 watts x 5/ch (20-20 kHz, 0.03% THD, 8 ohms)
200 watts x 5/ch (20-20 kHz, 0.03% THD, 4 ohms) THD (20-20,000Hz) 8 ohms, all channels driven < 0.03%
IM Distortion < 0.03% Damping Factor (8 ohms) 400 Gain 27.2 dB Input Sens. / Impedance 1.2 V / 8.3 k ohms Frequency Response (+/-1 dB) 10 - 80 kHz (+3dB) S/N Ratio (IHF A) 109 dB Power Consumption 280 Watts Dimensions (W x H x D) mm 431 x 99 x 339 mm Dimensions (W x H x D) in. 17 x 4 x 13 3/8 in Front Panel Height 2U / 88.1mm / 3 4/8 in Weight (net) 6.0kg / 13.23 lbs
Parasound A51
Continuous power output:
250 watts RMS x 5, 20 Hz - 20 kHz, 8 Ω, all channels driven
400 watts RMS x 5, 20 Hz - 20 kHz, 4 Ω, all channels driven
Current capacity:
60 amperes peak per channel
Power bandwidth:
5 Hz - 100 kHz, +0/-3 dB at 1 watt
Total harmonic distortion:
< 0.2 % at full power
IM distortion: balanced 16 V rms
< 0.04 %
Slew rate:
> 130 V/µsecond
Dynamic headroom:
> 1.5 dB
Interchannel crosstalk:
> 78 dB at 1 kHz;
> 63 dB at 20 kHz
Input sensitivity:
1 V for 28.28 V, THX Reference Lev
Input impedance:
47 k Ω unbalanced; 94 k Ω balanced
S/N ratio:
112 dB, input shorted, IHF A-weighted
Damping factor:
> 1100 at 20 Hz
Voltage:
110V - 120V
Dimensions:
17-1/4" w x 7-5/8" h x 20" d, 7" h without feet
Net weight: 80 lb.
claero
發表於 2009-10-17 16:23
parasound a51 $3xxxx , a52 below 15xxx, i used a23 (same as 52 but 2 channel)before , crystal clear high notes ,not bad but can't say very powerful , and rotel have thick voice but not that famous in hk , it have high cp ratio but the second hand market was bad . the new model i guess was class d now (not sure).
10bucks360
發表於 2009-10-17 16:23
好彩你冇講mk大陸燦,呢度嗌交都似{:6_121:}
pinkhung 發表於 2009-10-17 13:03 http://www.post76.com/discuss/images/common/back.gif
{:6_176:}
10bucks360
發表於 2009-10-17 16:26
NuForce 有 3 ch, 5 ch, 7 ch, 細細部, 大大力........................{:6_127:}
hkp1196 發表於 2009-10-17 13:17 http://www.post76.com/discuss/images/common/back.gif
有人身痕{:6_139:}
hintel
發表於 2009-10-17 16:29
my dream power amp {:6_139:}可惜冇{:6_198:}
http://www.sunfire.com/prodimg/4_1.jpg
http://www.sunfire.com/prodimg/4_2.jpg
10bucks360
發表於 2009-10-17 16:32
A51 MK有人話賣$@^xxx
hintel
發表於 2009-10-17 16:36
昨天我去sun問都要成$##xxx
10bucks360
發表於 2009-10-17 16:38
99分果邊有個CHING做影音工程, 可自行向佢問下A51價錢
alzard
發表於 2009-10-17 16:41
想問點解打埋呢D暗號﹐又無版規話唔報得價 {:1_260:}
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