Marantz 2245 Stereophonic Receiver, Vintage Beauty, Light Service - Survivor
This is a gorgeous vintage 2245 receiver. All of the original components are fully functioning aside from lamps.
This is what we call a survivor.
This example just received a light service here in our shop and is working and sounding fantastic. There's something about these vintage receivers and the way they sound vs other modern gear or separates of any era. Very warm and musical.
The only issue preventing this from receiving a 8 rating on our physical condition rating scale is due to a lightly etched number on the front left of the silver faceplate.
I've been testing this for some time at my desk since it looks so neat even when its doing nothing, and you have to look at certain angle for it to really show. Hasn't bothered me and I'm quite critical about this kind of thing.
SkyFi Service Notes:
• All burnt out lamps were replaced
• Vellum Replaced (ages over time and diminishes the front panel classic "look")
• DC Offset and Bias adjusted
• AM/FM both tested for proper dial tracking
• All controls cleaned and lubricated with CAIG products
• Face plate & knobs cleaned and polished
Click below to add our recommended matching cables from Kimber Kable, all brand new as SkyFi is an official Kimber dealer.
The SkyFi Testing Process for Receivers:
We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage.
We then power up the unit carefully and run a simple 1k sine wave while monitoring the output on an oscilloscope for signs of distortion or noise. Finally, we run the receiver to its full rated power into the appropriate resistive load provided by our Sencore amplifier tester. If there is an issue, it will usually be noticeable at this point. If everything reads clean, we will often test for THD (Total Harmonic Distortion) measured by our Keithley distortion meter, and compare it against the original manufacturers specifications. The receiver then remains powered on to "burn in" on our test bench for a few hours to make sure there are no heat related issues. If there are balanced inputs available they will be also be tested.
Then the tuner is thoroughly tested in our lab utilizing our professional Sencore SG80 FM Generator, which allows us to generate a reference FM signal of any frequency and amplitude, and then measure the resulting tuner output on our Sencore PR81 or oscilloscope.
Final testing involves pushing actual music thorough the receiver. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage KEF speakers that we're very familiar with which quickly reveal any discrepancies. Some receivers will then move into our listening room where they are tested with our in-house reference speakers of choice.
Link to Marantz Manual with full specs:
Yes - Power Only
Rated continuous (RMS) power output per channel, both channels operating simultaneously, 20 Hz to 20,000 Hz:
45 Watts at 4 and 8 ohms
25 Watts at 16 ohms
Comparable Total Music Power (IHF):
135 Watts at 8 ohms
High-level hum and noise (ref. 40 W at 8 ohms):
Phono hum and noise:
1.5 uV equivalent input
Dynamic range (phono input to tape recording output):
I. M. Distortion (SMPTE), at rated power:
0.3% - Distortion decreases as output is lowered
Total Harmonic Distortion, at rated power:
0.3% Maximum - Distortion decreases as output is lowered
Power Bandwidth (IHF) for 0.3% THD:
7 Hz to 70,000 Hz
Damping Factor (ref. 8 ohms):
Greater than 45
+/- 1 dB Through phono
Input Sensitivity (for 40 W at 8 ohms):
High-level: 180 mV
Phono (1,000 Hz): 1.8 mV
High-level: 100,000 ohms
Phono: 47,000 ohms
IHF Usable Sensitivity:
-55 dB at 5 µV
-60 dB at 10 µV
-65 dB at 50 µV
Total Harmonic Distortion, 400 Hz, 100% Mod.:
(Mono) 0.2% (Stereo) 0.4%
Frequency Response (ref. 75u sec. de-emphasis)
+/- 1dB 50 Hz to 15 KHz
1,000 Hz 40 dB
Sub-Carrier (38 kHz) Suppression
50 to 60 Hz
At rated output, both channels operating:
Idling Power (Volume Control at zero):
Packed for Shipment (Original Carton):