Hybrid Power Amps

Model no: SE-300B-100W
C$4,880 Untitled Document [US$ 3904]


100Wrms x 2  single-ended 300B power amplifier with balanced inputs

This is our high power series of single-ended 300B power amplifier, which have the sweet and smooth airy sound of the 300B amplifier, and at the same time process the big dynamic and high power driving capability. Now you have no need to use super high sensitivity speakers to work with your 300B, but free to use whatever speakers and still can fully utilize the super sweet character of this tube.

This model has both RCA and XLR inputs, 5U4G tube rectifier with choke power supply, power-on delay and speaker protection circuit included for maximum safefy consideration.

This amp features the following mind-blowing characters:

1. 0db NFB from input to output , 300B is working in pure class A single-ended operation mode, and point-to-point hand wired with gold plated sockets

2. 300B is really for amplification of the music signal, not like some others just use 300B in the power supply section and claim to be a high power 300B amplifier

3. No output transformers (OTL design), maximum damping factor and most widest bandwidth can be achieved, the beautiful characters of the 300B is totally exposed, the bass control and richness is so good, which can exceeds any traditional 300B designs while the mid and high range sweetness and silkiness still holds.

4. Super low noise level, you can hardly hear such quiet background from a traditional single-ended 300B design

5. No bias calibration , no hum adjustment or any maintainence needed, the 300B tube works under a totally safe and long lasting operation conditions, which can almost last forever until the filament die.

6. Super low price per watt which you can get get from 300B tubes, typical 300B amp charge around $500 per Watt , our design only $48 per Watt for this version


No. of inputs 1 set of RCA inputs + 1 set of XLR balanced inputs 
No. of outputs 1 set of speaker outputs ( 4-16 ohm)
Freq response 2Hz - 100Khz (-3db)
S/N > 90db
Phase non-inverted
manufacturing hand-wired point to point for tube and power supply sections
Tubes used 6SN7 x 2 + 300B x 2 + 5U4G
Output power /ch

100Wrms x 2 (8 ohm)

200Wrms x 2 (4 ohm)

1 year parts and labor warranty, tubes 90 days under normal operation conditions
standard chassis : Gold/ Black/Metallic  MDF , Aluminum chassis

(optional chassis : Mirror steel, black piano , solid-oak )

Micro-Dynamic Extraction upgrade (MDE) add C$500

Solid-oak chassis upgrade add C$300

Bi-wireable speaker binding post add C$80

All information on this website is copyrighted by Space-Tech Lab. Ltd. 1996-2024 .

Our product designs are protected and not permitted for replication or implementation. All Rights Reserved.

Save the earth and save yourself, be a vegetarian and keep enjoying music for a long long time !!