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http://www.pliniusaudio.nzld.com/products/sa103.aspSA-103 POWER AMPLIFIER
1989 saw the introduction of the PLINIUS SA-100, developed as a stereo amplifier from early work done by the PLINIUS design team. The SA-100 broke new ground in that a powerful Pure Class A amplifier was available within an economic package. Many hundreds were sold under different guises, culminating in the SA-102 in 2003.
Time passes, development continues and with the introduction of the SA-Reference amplifier a new standard has been achieved for PLINIUS.
The PLINIUS SA-103 has been developed on the heels of the newer PLINIUS amplifiers and it shares the sonic and aesthetic gains that have elevated these designs to new levels.
The classic PLINIUS look has been maintained with the use of the distinctive heatsink profile that has allowed us to produce an amplifier capable of operating in Pure Class A up to 125 watts per channel without the use of troublesome fans or other methods used for cooling.
Balanced circuits used in the SA-103 allow full Balanced Mono operation in excess of 400 watts. The addition of another SA-103 will provide an amplification system capable of the highest level of excellence without totally breaking the bank.
As with all PLINIUS amplifiers,premium components have been used throughout. There is the addition of a 12 Volt trigger which will allow integration into a semi automated system.
Sonically the SA-103 embodies all that we have learned and will paint a very believable and transparent facsimile of a live musical event.
A small group of dedicated technicians build each SA-103 by hand in our New Zealand factory ensuring that our stringent standards are maintained.
PRODUCT SPECIFICATIONS
Power: 125 watts continuous per channel into 8 Ohms 2 channel stereo mode.
400 watts continuous into 8 Ohms Balanced Mono mode. From 20Hz to 20kHz
Frequency Response: 20Hz to 20kHz ± 0.2dB. 0dB at 1Hz and -3dB at 70kHz
Distortion: Typically <0.05% THD at rated power, 0.1% THD and IMD worst case prior to clipping
Current Output: 50A short duration peak per channel. Fuse protected
Rise Time: Typically 5µS
Hum & Noise: 100dB below rated output 20Hz to 20KHz A-weighted
Input Impedance: 47,000 ohms
Gain on RCA Inputs: 32dB
Gain on balanced Inputs: 38dB
Dimensions: Height 220mm (8.75"), Width 500mm (19.75"), Depth 455mm (18"), Weight 38kg (83lb)
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SB-301 POWER AMPLIFIER
The PLINIUS SB-301 is our answer to the perennial power versus sonic quality debate.
We were approached about 12 months ago by a Californian company engaged in the manufacture of large home theatre speaker systems, and asked to submit an amplifier for their appraisal.
There were two important specifications that had to be adhered to, a)the amplifier had to sound good,and b)the amplifier had to sound good at 120dB!
We sent them an SA-102 and goal one was achieved. The sound quality was better than anything experienced previously,however under rigorous testing they found that the SA-102 would only deliver 115dB prior to clipping.
We then sent an SA-250/4. Goal a and b were surpassed but the SA-250/4 is very large and a little too expensive for the multi-amplifier applications they had in mind.
Back to square one and some head scratching.Our design team decided that we needed a 300 watt, SA-102 package and this is exactly what the SB-301 is. The basic circuit topology is the same as the SA-102 but with a larger power supply and more rugged output stage.The number of output devices is double that of the SA-102 and the two toroidal transformers are larger.
The SB-301 operates in Class AB bias and as such the standing temperature is lower than that encountered in our SA series designs.
The construction of the SB-301 is to the same extreme of quality as the rest of the PLINIUS line and offers the rugged dependability of the SA series designs.
It is widely believed that as amplifier power increases the sonic ability diminishes. Clearly the SB-301 dispels this notion and will deliver all the dynamics,finesse and transparency that PLINIUS is renowned for.
The SB-301 is at home in the most demanding music or theatre applications and will perform flawlessly under the most arduous conditions.
PRODUCT SPECIFICATIONS
Power:
310 watts continuous per channel into 8 ohms. Both channels driven from 20Hz to 20kHz
Frequency Response: 20Hz to 20kHz ±0.2dB. -3dB at 70kHz
Distortion: Typically <0.05% THD at rated power. 0.1% THD and IM worst case prior to clipping
Current Output: 100A short duration peak per channel. Fuse protected
Rise Time: Typically 5µs
Hum & Noise: 100dB below rated output 20Hz to 20kHz A-weighted
Input Impedance: 47,000 ohms
Gain on RCA Inputs: 32dB
Gain on Balanced Inputs: 38dB
Dimensions: Height 220mm (8.75"), Width 500mm (19.75"), Depth 455mm (18"), Weight 38kg (83lb)
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