Marantz PM-14SA ver.2 (2002)
The Marantz PM-14SA ver.2 is a pre-main (integrated) amplifier released in Japan in 2002 at ¥230,000. Marantz took the technology from their flagship separates, the SC-7S1 preamp and MA-9S1 power amp, and put it in a single chassis. The "ver.2" name means a substantial revision of the original PM-14SA, with the power supply circuit extensively reworked.
The amp is built around a 450 VA super-ring-core toroidal transformer. The rectifier circuits use Schottky barrier diodes, and the filter caps are low-loss cobalt electrolytics from the same series used in Marantz's separate amplifiers. The preamp section uses a current feedback circuit with an adjustable HDAM voltage amplification module in the first stage. Adjustable here means the DC offset can be trimmed, so there's no DC servo circuit. The power amp section uses a 3-stage Darlington configuration with a single push-pull output stage of 200W Pc multi-emitter bipolar transistors. The CD input uses wide-pitch machined terminals, and the speaker terminals come from WBT of Germany.
Rated output is 100W + 100W into 8Ω, 160W + 160W into 6Ω, and 200W + 200W into 4Ω. THD is rated at 0.008% (20 Hz-20 kHz, both channels driven, 8Ω). Damping factor is 180. Frequency response runs from 5 Hz to 100 kHz (+0, -1dB) in CD Source Direct mode. The phono stage handles both MM and MC cartridges, with RIAA deviation of ±0.2dB. Signal-to-noise is rated at 115dB for high-level inputs.
The pre-out stays active even in integrated mode, so you can run active subwoofers. The power amp section's gain is matched to the SM-17SA ver. 2, which allows bi-amplifier setups. Inputs are four line-level, one balanced, two tape loops, and phono. Outputs are pre-out, two tape, two speaker pairs, and headphone. The chassis is copper-plated high-density zinc die-cast, and the whole amp weighs 23.0kg. A wireless remote and OFC power cable are included.
The record on this model is mostly technical. No period reviews from English-language publications have turned up in the archive's sources, so reception is documented only through owner comments on forums. One Russian-language owner reports being quite satisfied and says it plays jazz and vocals well for the money. Another seller describes it as second from the top of Marantz's Hi-End class, with the PM-15 above it. A 2004 listing date appears on some used units, which may mean production ran past the 2002 release. The sources conflict here, so treat the exact year with caution.
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