![\"rowland-model-2_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/10\/Rowland-model-2_550pix.jpg\")
<\/p>\n1994-1999<\/b><\/p>\n
Retail price in 1998\u00a0in the Netherlands 7.940\u00a0euro<\/p>\n
<\/p>\n
![\"rowland-model-2-016_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/rowland-model-2-016_550pix.jpg\")
<\/p>\n
![\"rowland-model-2-zwart_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/rowland-model-2-zwart_550pix.jpg\")
<\/p>\n
![\"rowland-m2-op-m6-en-dragon-img_6607_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/rowland-m2-op-m6-en-dragon-IMG_6607_550pix.jpg\")
<\/p>\n
The model 2 (the black one on top) is a more modern design than the model 1. Inside it is highly sophisticated and well-worth using a transparent cover! Fully balanced, efficiently biased highly but not too high using bipolar transistors and with several adjustments possible on the rear this is a very flexible amp. Both technically and audibly it is like a stereo version of the model sixes.<\/p>\n
In my opinion one of the best stereo poweramps around. It doesn’t have it’s predecessor’s thickness\/warmth but it threads a fine balance between resolution, pace, openness, air, transient speed and attack on the one hand and fluidity, warmth and sheer musicality on the other. This amp is incredibly fast and well-controlled and you might even find it slightly lean in balance, but is it ever so musical! It has the most airy and fluid\/continuous treble that I have ever heard. It surpasses even all the tube amps that I heard in my setup so far in this respect while maintaining speed and control and that’s saying something. I compared it directly to the model 6 monos on both B&W Nautilus 804’s and Martin Logan SL3’s and they are sonically very close. You really have to know your system well to be able to tell the differences. The sixes do have some more bass and a wider soundstage. But that’s about it. Sure the sixes also have more power reserve but you don’t notice this unless you start abusing the volume control, or have more demanding speakers.<\/p>\n
![\"rowland-model-2-en-bps-2_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/rowland-model-2-en-bps-2_550pix.jpg\")
<\/p>\n
Above: Model 2 + BPS2<\/p>\n
![\"rowland-model-2-en-bps-2-2_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/rowland-model-2-en-bps-2-2_550pix.jpg\")
\nAbove: Model 2 + BPS2 rearside (no DC cable connected, and amp socket shorted with cap).\u00a0Notice the two switches on the rear, near the right hand speaker binding posts? They are for gain and impedance. With these switches you can influence the sound quite a bit. Low impedance makes for less attack and perceived dynamics but is a lot smoother and more fluid in the highs while high gain has again more attack but is also more dry and low gain is more relaxed. These switches are both on the model 2 and model 6 as well as on a lot of other Rowland amps.<\/p>\n
![\"rowland-model-2-zwart-rear_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/rowland-model-2-zwart-rear_550pix.jpg\")
<\/p>\n
![\"rowland-m2-flightcase-img_6606_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/Rowland-m2-flightcase-IMG_6606_550pix.jpg\")
<\/p>\n
Model 2 flightcase<\/p>\n
The model 2 is very closely related to the model 6<\/a>. While the latter are mono blocks in which each side handles one phase of the signal to combine into one balanced mono signal per amplifier, the model 2 divides the available 16 transistors over two channels while retaining the balanced topology.<\/p>\n Above: Model 2 top side inside<\/p>\n Above: Model 6 mono block top side inside<\/p>\n Above: Model 2 underside inside<\/p>\n Above: Model 6 monoblock underside inside (front-rear reversed)<\/p>\n Model 2 Fuse blown<\/strong><\/p>\n I’ve had an instance where the fuses in my Model 2 were blown and apparently this has happened to others. The fuses are located in the sidepanel heatsinks, two on the left and two on the right. Just in case that a previous owner has installed different fuses here’s what is supposed to be in there: Fast Blow 5 to 7 amp.<\/p>\n (Optional) BPS unit DC Cable Compatibility<\/strong><\/p>\n XLR Balanced Input jacks for balanced (Differential Mode\u2122) system configurations<\/p>\n XLR to RCA Input adapters included \u00feUser-selectable overall gain of 26 or 32 dB<\/p>\n User-selectable input impedance of 36k\u2126(HI) or 600\u2126(LO)<\/p>\n All internal signal circuitry is totally isolated from chassis and system ground potentials to eliminate noisy ground loops and to provide extreme immunity from RF interference<\/p>\n Optional remote (wired or wireless power ON\/OFF switching)<\/p>\n Automatic temperature stabilizing circuitry maintains constant operating temperature<\/p>\n Standby power condition reduces warm-up time<\/p>\n Fail-safe operation provided by user-resetable AC circuit breaker located on rear panel<\/p>\n Quiet, transient-free operation during power and function mode switching<\/p>\n Automatic input muting under anomalous input or output operating conditions<\/p>\n Balanced Differential Mode\u2122 circuit topology implemented from input to output<\/p>\n Plug-in modules, containing critical electronic circuitry, enhance thermal stability, mechanical integrity and serviceability<\/p>\n Low-resonance, structurally integrated chassis of precision machined aluminum alloy components.<\/p>\n Output Power Continuous RMS watts<\/strong> Power Bandwidth<\/strong> Slew Rate<\/strong> THD and Noise<\/strong> Damping Factor<\/strong> Output Current<\/strong> Overall Gain & Sensitivity<\/strong> Input Impedance<\/strong> Common Mode Rejection Ratio<\/strong> Power Consumption<\/strong> Inputs<\/strong> Outputs<\/strong> Dimensions<\/strong> Shipping Dimensions<\/strong> Weight<\/strong> Shipping Weight<\/strong> BPS-2<\/a> Jeff Rowland Company Special Main Page 1994-1999 Retail price in 1998\u00a0in the Netherlands 7.940\u00a0euro The model 2 (the black one on top) is a more modern design than the model 1. Inside it is highly sophisticated and well-worth using a transparent cover! Fully balanced, efficiently biased highly but not too high using bipolar transistors and with several adjustments possible on the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-9156","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hifi-advice.com\/blog\/wp-json\/wp\/v2\/pages\/9156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hifi-advice.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hifi-advice.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hifi-advice.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hifi-advice.com\/blog\/wp-json\/wp\/v2\/comments?post=9156"}],"version-history":[{"count":9,"href":"https:\/\/www.hifi-advice.com\/blog\/wp-json\/wp\/v2\/pages\/9156\/revisions"}],"predecessor-version":[{"id":24556,"href":"https:\/\/www.hifi-advice.com\/blog\/wp-json\/wp\/v2\/pages\/9156\/revisions\/24556"}],"wp:attachment":[{"href":"https:\/\/www.hifi-advice.com\/blog\/wp-json\/wp\/v2\/media?parent=9156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"jeff-rowland-m2-inside-new-img_7509_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/jeff-rowland-m2-inside-new-IMG_7509_550pix.jpg\")
<\/p>\n![\"rowland-model-6-inside-jw-img_2463_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/rowland-model-6-inside-JW-IMG_2463_550pix.jpg\")
<\/p>\n![\"rowland-model-2-inside-van-onderen-img_6621_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/Rowland-model-2-inside-van-onderen-IMG_6621_550pix.jpg\")
<\/p>\n![\"rowland-model-6-inside-jw-img_2467_550pix\"](\"http:\/\/www.hifi-advice.com\/blog\/wp-content\/uploads\/2016\/11\/rowland-model-6-inside-JW-IMG_2467_550pix.jpg\")
<\/p>\nTroubleshooting<\/h2>\n
The model 9 amps used a two pin Fischer connector, male and female on each end with ground carried in the shield and shell. Sometimes the original rubber jacket would degrade and while not affecting the functionality of the cable, a new cable sheath, like heatsink tubing, could be installed over the degraded rubber. In these cases, the Cardas branding would be covered.<\/div>\n<\/div>\nThe model 2,6 and 8 amps used an Amphenol brand connector of 8 pins to use when connecting BPS battery supplies. These also are all the same within their group and made by Cardas to JRDG spec.<\/div>\nModel 2 Features<\/h2>\n
Model 2 Technical Specifications<\/h2>\n
\n@ 8 ohms 75 watts
\n@ 4 ohms 150 watts<\/p>\n
\n0.1 Hz to 160 kHz, -3 dB<\/p>\n
\n80 volts per microsecond<\/p>\n
\nLess than 0.05% at rated power<\/p>\n
\nGreater than 100, 20 Hz to 20 kHz, 8 ohms<\/p>\n
\n20 amps continuous
\n35 amps peak<\/p>\n
\nUser selectable on rear panel (1 watt, 8 ohms)
\n26 dB or 32 dB; 141 mV or 71 mV<\/p>\n
\nUser selectable on rear panel
\nUnbalanced 36k or 600 ohms
\nBalanced 36k or 600 ohms<\/p>\n
\nGreater than 60 dB, 20 Hz to 20 kHz<\/p>\n
\n25 watts standby
\n175 watts operating, idle;
\n400 watts maximum<\/p>\n
\nUser selectable on rear panel
\nUnbalanced With supplied XLR\/RCA adapter
\nBalanced 2 XLR connectors<\/p>\n
\n1 pair binding posts per channel<\/p>\n
\n17.5 in. W x 14.25 in. D x 5.25 in. H 44.5 cm W x 36.2 cm D x 13.3 cm H<\/p>\n
\n24 in. W x 20 in. D x 12 in. H 61 cm W x 50.8 cm D x 30.5 cm H<\/p>\n
\n47 lbs. (21.5 kg)<\/p>\n
\n75 lbs. (34.0 kg)<\/p>\nBPS (Battery Power Supplies)<\/h2>\n
\nBPS Main Page<\/a><\/p>\nMore Jeff Rowland<\/h2>\n
\n<\/a>Jeff Rowland Company Special Power Amplifiers<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"