Infinity Quantum Qe

Specs
2-way configuration,

closed box,
treated paper cone Q-woofer Infinity 200mm, butyl surround, #902-1065,

ribbon tweeter Infinity EMIT, #901-0221, rotatable,
10-100W@4-8Ω,
47-32000Hz ±3 dB,
sens. 89 dB.
mm 305x457x254, kg --,-.

Topping TP10-mark 4

Specs
2x10W@8Ω/20-20000Hz,
2x15W@4Ω/20-20000Hz,
1 Tripath TA2024 stereo amplifier chip (class T),
2x220µF/35v Nichicon FW el. caps,
smd components,
Nichicon FW, Elna, Dale components,
dynamic range 98 dB,
mm 90x50x162, kg 0,45.

Pioneer HPM-70

Specs
4-way configuration,
bass reflex via front-firing paper port,
cone woofer Pioneer 25-737B 250mm, textile surround,
cone midrange Pioneer 10-726B 100mm, textile surround,
cone tweeter Pioneer 45-711C 45mm, textile surround, 

high polymer convex film supertweeter Pioneer HP-015B,

high & mid level control,
60-120W@8Ω,
35-25000Hz ±?dB,
sens. 92,5dB.
mm 350x610x321, kg 17,5.

Marantz CD-42

Specs
1bit bitstream conversion,
Philips SAA7350GP - NPC SM5840FP dac / filter,
  Philips CDM-4/19 transport,
Panasonic, Nichicon, Nichicon Muse components,
S/N > 100 dB,
dynamic range > 90 dB,
2–20000 Hz ± 0,3 dB,
harmonic distortion < 0,0064%,
mm 420x100x284, kg 4,4.

Pioneer HPM-500

Specs
3-way configuration,
bass reflex via front-firing port,
polymer graphite cone woofer Pioneer 25-750A 250mm, foam surround,
polymer graphite cone midrange Pioneer 45-717A 45mm, textile surround,
high polymer film tweeter Pioneer HP-018A-5,

high range level control,
40-80W@8Ω,
35-50000Hz ±?dB,
sens. 91dB.
mm 325x570x317, kg 12,2.