Detail 01
Three 12AX7A tubes
Tube gain stages thicken harmonics as level rises, so the box colors the sound even with bands flat.
Product detailSKU #1274228063284
Summit AudioEQP-200B Dual Program Equalizer
1/4
Independent shopping perspective
The Korena take
Two-channel tube program equalizer for mixing and mastering. For engineers who want broad, musical tone shaping on stereo material, stems or sources going to tape.
Strong match
Who this is for
- Stereo bus work where both channels need to match
- Tracking rooms wanting tube color on the way in
- Broad tone shaping on full mixes and stems
Consider the trade-offs
When to look elsewhere
- Surgical notch fixes — the curves are broad
- Small budgets; a plugin handles basic corrective EQ
- Shallow racks or rigs without 115 VAC power
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Discrete 990 op-amps on the output
Drives long cable runs and 600-ohm loads without thinning out, so it plays well with older outboard.
Detail 03
5 Hz to 100 kHz response
Bandwidth reaches far past hearing, which keeps phase shift at the band edges out of the audible range.
Detail 04
20k ohm input, 75 ohm output
High in, low out. It sits anywhere in a patchbay without loading down whatever feeds it.
Detail 05
+25 dBu maximum output
Roughly 21 dB above nominal +4, so large boosts don't run the output stage out of room.
Detail 06
19 x 3.5 inch panel, 10.5 inch depth
Two rack spaces, and it needs over ten inches behind the rails plus clearance for cables.
Final check
Know before you order
- 01Two rack spaces plus 10.5 inches depth, with connector clearance behind that
- 02Power is rated 115 VAC — confirm voltage before shipping abroad
- 03Tubes are consumable; budget for replacement 12AX7As down the road
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is this a stereo EQ?
It's a dual program design — two channels. Use them together on a stereo bus or independently as two mono EQs.
02How much rack space does it need?
Two spaces. The panel is 19 by 3.5 inches and it runs 10.5 inches deep at 18 pounds, so rear support helps.
03Can I run it on 230 volts?
Power is specified as 35 watts at 115 VAC, 50 or 60 Hz, with a 230 VAC fuse value also given. Confirm the voltage setting before ordering.
04Will it drive unbalanced gear?
The output works balanced or unbalanced and wants a 600-ohm or higher load. The input is electronically balanced at 20k ohms.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsSound
- Frequency Response
- 5 Hz to 100kHz
- Power
- 35 Watts, 115 VAC, 50 or 60 Hz
2 detailsConnections & power
- Output
- +4dBu corresponds to 0 VU. The output is balanced or unbalanced using 990 operational amplifiers. Output impedence is 75 Ohm. The recommended output load is 600 Ohms or more. Maximum output approaches +25dBu.
- Input
- The input is electronically balanced with an input impedence of 20 k Ohms
3 detailsSize & weight
- Depth
- 10.5 inch
- Weight
- 18
- Shipping Weight
- 18 lbs. (8.1 kg)
3 detailsOther
- Components
- (3)Vacuum tubes: three 12AX7A, (4) High reliability discreet 990 operational amplifiers, (10) integrated circuits, (4) transistors.
- Fuse Size
- 0.5 Amp for 115 VAC, 0.25 Amp for 230 VAC
- Panel Size
- 19 inch x 3.5 inch
